Turbo : Jurnal Program Studi Teknik Mesin
type: channel
description: STM88 STM88 STM88 STM88 STM88 STM88 STM88 Tuak88 Tuak88 Tuak88 Maincuan
publisher: Universitas Muhammadiyah Metro
language: en-US
publication name: Turbo : Jurnal Program Studi Teknik Mesin
issn: 2301-6663
copyright: This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. All articles published Open Access will be immediately and permanently free for everyone to read and download. We are continuously working with our author communities to select the best choice of license options, currently being defined for this journal as follows: TURBO by JURUSAN TEKNIK MESIN is licensed under a Creative Commons Attribution 4.0 International License.
items: Experimental Study of The Effect of Reactor Temperature Variations on The Characteristics of Oil Resulting from The Pyrolysis Method of Crumb Rubber Solid Waste
items: Analysis of the Effect of Using a Truck Cover and Wind Deflector on the Drag Coefficient of Trucks
items: Welding Joint Analysis On Three Wheel Transport Ambulance Frame
items: The Effect of Composition and Sintering Temperature on the Characteristics of xCu-yNi-5 wt.%W Alloy as a Candidate Electrode Material
items: Analysis of Energy Transportation and Distribution in Indonesia
items: Hazard identification and risk analysis in apron movement control services at Mopah Merauke airport
items: Analisis Perpindahan Panas Pada Alat Desalinasi Surya Pasif Dengan Variasi Tinggi Penutup
items: Advancing Green Urea Recovery Flow: Enhancing Efficiency Through Flow Conditioning to Control Turbulence and Pressure Drop
items: Memformulasikan Rumusan Matematik untuk Nilai Defleksi Pegas Tekan dan Tarik Seiring Penambahan atau Pengurangan Diameter Kawat Baja
items: Analisis Nilai Elongasi Material Terhadap Cracksheet Pada Proses Deep drawing Nozzle pada Unit Evaporator
items: Analisis Performa dan Efisiensi Pompa Sentrifugal Tag Number 220 P1 A/B pada Unit Distillate Hydrotreating di PT. XY
items: Identifikasi Penyebab vibrasi yang Mengindikasikan Blade Pass Frequency (BPF) DI PT XX
items: STUDI TENTANG PENGARUH TEKANAN KOMPAKSI DAN SINTERING PADA CAMPURAN SERBUK Cu, Fe, Si, Ni
items: Analisis Efisiensi Termal PLTGU Muara Karang Blok 2 Menggunakan Sankey Diagram pada Beban 135 MW
items: Perancangan Sistem Air blast freezing Berkapasitas 25 Kg dengan Sistem Refrigerasi Cascade Menggunakan Refrigerant R290/R32
items: https://ojs.ummetro.ac.id/index.php/turbo/article/view/4306
items: Produksi dan Karakteristik Briket Limbah Ampas Kopi dan Tempurung Kelapa sebagai Energi Alternatif Terbarukan
items: Pengaruh Diameter Kawat dan Panjang Koil Pegas Tekan terhadap Defleksi pada Sistem Getaran Ayak
items: Pengaruh Variasi Temperatur Torefaksi Terhadap Karakteristik Wood Pellet dari Limbah Furnitur Kayu Campuran
items: Wave Tank Skala Laboratorium dengan Pembuat Ombak Tipe Piston
items: Construction and Performance Testing of Young Coconut Waste Shredding Machines
items: Temperature Reduction Performance of Radiative Cooling Paint on Building Roofs
items: Screw Modification On Plastic Extruder Machine
items: Performance Test of Water Flow Control System and Nozzle Movement in Fountains Integrated with Automatic Plant Irrigation
items: DESIGN OF A SANDBLASTING WASTE SIEVE MACHINE (CASE STUDY OF SHIPYARD)
items: PENERAPAN TEKNOLOGI MESIN PENGERING BIJI KOPI MENGGUNAKAN SISTEM SOLAR PANEL
items: Analisis Mikrostruktur dan Performa Aus Baja S45C Dengan Perlakuan Panas pada Suhu 700 °C, 750 °C, dan 800 °C
items: Evaluasi Struktural Rancangan Dongkrak Ulir sebagai Alat Pengangkat pada EV Maung Galunggung Menggunakan Analisis Elemen Hingga
items: Evaluasi Pemilihan Material pada Pemotong Kertas Manual Kapasitas Besar untuk Optimalisasi Desain Produk Lokal pada Komponen Pisau dan Rangka
items: Investigation of the Influence of Plate Thickness on Orifice Flow Using the Computational Fluid Dynamics Method
items: THE EFFECT OF OFFSET RATIO ON OFFSET JET FLOW STRUCTURE
items: Perancangan Freeze Vacuum Drying Menggunakan Thermal Energy Storage untuk Mengeringkan Lidah Buaya dengan Kapasitas 4 kg
items: Proses Perbaikan Cooler Fan 5W1K14 Dengan Mendekteksi Kerusakan Berdasarkan Analysis Vibration
items: Optimalisasi Panel Surya dengan Sirip Pendingin untuk Pengembangan Kapal Listrik Berbasis Energi Terbarukan di Sungai Mahakam
items: Analisa Pengaruh Metode Pengurangan Kadar Air terhadap Kualitas Pemipilan Jagung menggunakan Mesin Pemipil Type Spiral Rotary
items: Analisis Pengaruh Pahat CNMG 120404 pada Proses Bubut CNC terhadap Kekasaran Permukaan Baja S45c dengan Metode Taguchi
items: Reverse Engineering dan Evaluasi Desain pada Komponen V-Plow Conveyor Belt Jenis Bulk Material Handling menggunakan Metode Elemen Hingga
items: Evaluasi Termal Heatsink dengan Variasi Arah Aliran pada Sirip Vertikal dan Sirip Bersegmen untuk Pendinginan Pasif Photovoltaic
items: Analisis variasi fraksi volume serat pelepah nipah material filler pada komposit papan partikel semen serat pelepah nipah-cangkang kerang kepah
items: PENGARUH WAKTU PEMANASAN DAN MEDIA KOROSI TERHADAP LAJU KOROSI BAJA ASTM A36 SEBAGAI BAHAN CHAMBER INCENERATOR
items: Perancangan Mesin Pencetak Briket Limbah Pelepah Sawit Sistem Hidrolik di Kota Bontang
items: Analisis Perbandingan Kekuatan Mekanik Komposit Resin Polyester Berpenguat Serat Sabut Kelapa, Serat Ijuk, dan Serat Pohon Pisang sebagai Material Alternatif Pembuatan lambung Perahu
items: Analisis Numerik Multifase Transportasi Slurry Abu Terbang Berkonsentrasi Partikel Tinggi
items: Pengaruh Arah Pengerolan dan Orientasi Butir Logam Terhadap Sifat Mekanik Magnesium AZ31B Untuk Aplikasi Implan Biomedik Mampu Terdegradasi (Biodegradable Implant)
items: Optimizing the Production of Glass Ceramic from East Lampung Basalt Rock Using Taguchi and ANOVA Analysis Methods
items: ANALISIS KOMPARATIF PROSES PIROLISIS DARI BAHAN SAMPAH PLASTIK DAN BIOMASSA TERHADAP HASIL PRODUK
items: Pengujian Eksperimental Keausan Bahan Alumunium, Tembaga dan Baja Karbon Menggunakan Uji Keausan Skala Laboratorium Type Pin On Disc
items: Komposit Berbasis Serat Tangkos Kelapa Sawit: Kajian Fisik dan Mekanis
items: Perancangan Modifikasi Upper Arm Suspensi Belakang Honda Civic 2001 - 2005 Dengan Autodesk Inventor
items: Effect of Current Variation on the Mechanical Properties and Microstructure of GTAW-Welded SS400 Steel
items: Pengaruh diameter dan sudut sudu turbin impuls sederhana menggunakan elbow PVC
items: Reverese Engineering Burnishing Tool Untuk Proses Finishing Kekasaran Permukaan Pada Mesin Milling Konvensional
items: Studi Performa dan Analisis Kerusakan Sistem Hidrolik Excavator Mini Excavator Zhugimada
items: Characteristics of Briquettes Produced from Rubber Seed Shell and Palm Kernel Shell Using Tapioca Flour as Binder
items: Rancang Bangun Mesin Injection Molding Tipe Vertikal Untuk Pembuatan Produk Tatakan Gelas Dari Limbah Plastik PET

Experimental Study of The Effect of Reactor Temperature Variations on The Characteristics of Oil Resulting from The Pyrolysis Method of Crumb Rubber Solid Waste
type: item
description: Energy is an important part of human life because almost all human activities always require energy. Therefore, it is necessary to conduct research to overcome the above problems, namely by making alternative energy by utilizing crumb rubber plant waste into alternative oil. The crumb rubber solid waste that we use comes from the micro blending and macro blending milling process from the process there is waste in the form of granulated rubber (Crumb Rubber Waste). Crumb Rubber Plant waste is currently not being utilized optimally. The basic structure of natural rubber is a linear chain of isoprene units (C5H8) natural rubber is a polymer of hydrocarbon compounds, namely 2–methyl-1,3 butadiane (isoprene). The main purpose of this study is to determine the value of the oil combustion rate resulting from the pyrolysis of crumb rubber solid waste and find out the characteristics of the oil resulting from the pyrolysis of crumb rubber solid waste and find out the comparison of the quality of oil from crumb rubber solid waste. From this study will show the optimum amount of pyrolysis and distillation results to produce oil. Operating conditions take place at atmospheric pressure with temperature variations of 200oC, 250oC, 300oC, and 350oC for 180 minutes for the pyrolysis process which will then be distilled with a temperature of 95°C for 20 minutes. The results showed that % of the conversion of raw materials into oil (amendment) was highest for the pyrolysis process at a temperature of 350oC of 51.86% while in the distillation process pyrolysis oil with a temperature of 350oC as much as 82.55%. For the value of the combustion rate in the largest pyrolysis process with a value of 0.975 Â at a temperature of 350oC and a distillation process of 1,612 Â at a temperature of 350oC.
creator: Angky Puspawan
creator: Nurul Iman Supardi
creator: Agustin Gunawan
creator: Abdul Latif Mubarok
creator: Rifki Sulthan
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-08-21
publication date: 2025-08-21
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4045

Analysis of the Effect of Using a Truck Cover and Wind Deflector on the Drag Coefficient of Trucks
type: item
description: Penelitian ini menganalisis pengaruh penggunaan tutup bak dan deflektor angin terhadap koefisien drag (Cd) pada truk menggunakan simulasi terowongan angin. Penelitian meliputi empat konfigurasi: truk tanpa modifikasi, truk dengan tutup bak, truk dengan deflektor angin, dan kombinasi keduanya. Variabel bebas meliputi jenis modifikasi dan kecepatan angin (7 m/s, 8,5 m/s, 10 m/s), sedangkan variabel yang terikat adalah nilai koefisien drag (Cd). Hasil percobaan menunjukkan bahwa kombinasi tutup bak dan deflektor angin memberikan penurunan Cd paling signifikan hingga 34% dibandingkan kondisi tanpa modifikasi, diikuti oleh penggunaan individu tutup bak (16%) dan deflektor angin (24%). Penurunan CD ini mengurangi gaya drag secara signifikan, meningkatkan efisiensi aerodinamika, serta mengurangi konsumsi bahan bakar. Dengan demikian, modifikasi ini direkomendasikan sebagai solusi praktis untuk meningkatkan efisiensi kendaraan niaga dan mendukung ekosistem.
creator: Moch Miqdar Efendi
creator: Arasy Fahruddin
creator: Windarta Windarta
creator: Edi Widodo
creator: Iswanto Iswanto
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-08-21
publication date: 2025-08-21
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4193

Welding Joint Analysis On Three Wheel Transport Ambulance Frame
type: item
description: Three-wheels ambulance transport is crucial for the mandangin island community, sampang subdistrict, sampang regency. The construction of a three-wheel ambulance utilizes the frame of a typical three-wheeled vehicle. However, according to technical guidelines for ambulance vehicles, the required length exceeds that of the standard three-wheel vehicle. Therefore, the frame of the three-wheel vehicle is extended using additional materials to increase the vehicle's length. The frame extension method employed is welding. Two welding path variations are used: straight and zig-zag. Testing was conducted using SolidWorks simulation and validated through bending tests. The simulation results indicated a stress value of 248 MPa for both variations. Meanwhile, the validation tests produced stress values of 66.99 MPa for the straight weld path and 69.42 MPa for the zig-zag weld path. This demonstrates a significant difference in stress between the simulation and validation results, attributed to residual stresses and distortion changes after welding. Additionally, the variation in welding paths (which may affect weld length) did not yield significant differences in outcomes
creator: Auliana Diah Wilujeng
creator: Misbakhul Fatah
creator: Ferly Isnomo Abdi
creator: Achmad Hikam Ulul Sufi
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-08-21
publication date: 2025-08-21
volume: 14
number: 2
doi: 10.24127/trb.v14i2.3991

The Effect of Composition and Sintering Temperature on the Characteristics of xCu-yNi-5 wt.%W Alloy as a Candidate Electrode Material
type: item
description: Paduan berbasis Cu banyak digunakan sebagai komponen kelistrikan seperti elektroda. Terdapat beberapa komponen yang dioperasikan pada lingkungan temperatur tinggi, kondisi ini menyebabkan terjadinya penurunan kekuatan paduan logam yang pada akhirnya menyebabkan kegagalan pada komponen tersebut. Permasalahan ini dapat diminimalisir melalui usaha peningkatan kekuatan tanpa mengabaikan penurunan konduktivitas listrik paduan berbaasis Cu. Penelitian ini bertujuan untuk mengetahui pengaruh rasio komposisi Cu/Ni dan temperatur sintering terhadap sifat mekanis dan konduktivitas listrik paduan Cu-Ni-5 wt.%W. Sintesis model paduan Cu-Ni-W dilakukan menggunakan teknik metalurgi serbuk menggunakan serbuk dengan kemurnian tinggi. Proses pencampuran serbuk menggunakan horizontal milling, dilanjutkan kompaksi pada temperatur ruang untuk mendapatkan green material diikuti proses sintering pada temperatur 770-870oC. Bulk material yang diperoleh dari proses sintering dilakukan karakterisasi dengan berbagai cara diantaranya pengujian kekerasan Vickers, tekan, konduktivitas listrik, dan observasi mikrostruktur. Hasil penelitian diperoleh Â peningkatan rasio Cu/Ni dan temperatur sintering cenderung meningkatkan sifat mekanis, namun penambahan Ni hingga 30 wt.% menyebabkan penurunan konduktivitas listrik.
creator: Dwiki Rifhardi Siregar
creator: Muhammad Farhan Azmi
creator: suprianto suprianto
creator: Muhammad Akhsal
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-08-21
publication date: 2025-08-21
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4124

Analysis of Energy Transportation and Distribution in Indonesia
type: item
description: Energy transportation and distribution are crucial components in the national energy system, serving as the main link between energy sources and consumers. The efficiency of both systems is crucial to maintain the stability of energy supply and minimize energy loss during the distribution process. This study aims to explore the importance of energy transportation and distribution in the context of national energy security and the geographical and energy infrastructure challenges in Indonesia. Using a literature study method, this study collects and analyzes literature from various academic sources and relevant reports. The results show that an efficient energy transportation and distribution system plays a major role in reducing the energy gap between regions, expanding energy access to remote areas, and supporting sustainable economic development. In addition, Indonesia's geographical challenges as an archipelagic country, such as the distance between islands and population inequality, widen the energy infrastructure gap between the western and eastern regions. Investment in energy infrastructure development, especially in disadvantaged areas, and the integration of renewable energy are important steps in strengthening national energy security. This study concludes that in order to achieve better and more equitable energy security, inclusive and sustainable energy infrastructure development policies and strategies are needed.
creator: Suganda P Simanjuntak
creator: Rismen Sinambela
creator: Leonard Lisapaly
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-08-21
publication date: 2025-08-21
volume: 14
number: 2
doi: 10.24127/trb.v14i2.3873

Hazard identification and risk analysis in apron movement control services at Mopah Merauke airport
type: item
description: Airside facilities that directly support aircraft operations include runways, taxiways and aprons. As far as possible, these facilities must be free from all forms of potential dangers and disturbances that could impact aircraft operations. The aim to be achieved is to determine the risk tolerance limit for each potential danger that exists on the Apron Movement Control service side at Mopah Airport by carrying out statistical analysis of each risk that may arise. Â Methods: The analytical method used is descriptive statistical analysis. Respondents were targeted at 50 (fifty) respondents specifically aimed at related parties, including: AMC Personnel, Regulators/Local Aviation Authorities, Mopah Airport Management, Commercial Airlines and Related Services at Mopah Airport which are closely related to the research. Results: The maximum score of respondents' responses to potential danger (Hazard) in the entire Apron Movement Control service activity at Mopah Merauke Airport is 125 with the highest potential in cleaning services and markings/signs on the side of the apron with a risk matrix of 1A, meaning there needs to be risk control/mitigation. which requires management decisions and the potential to be accepted after reviewing the implementation of operations. Â Conclusion: Mopah Merauke Airport's Apron Movement Control service activities are 125 with the greatest potential in cleaning services and markings/signs on the side of the apron. In this service activity, management decisions are needed in an effort to control the risk/mitigation of the existing potential and this potential can be accepted after reviewing implementation of operations.
creator: Peter Sahupala
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.3662

Analisis Perpindahan Panas Pada Alat Desalinasi Surya Pasif Dengan Variasi Tinggi Penutup
type: item
description: Desalinasi surya merupakan salah satu teknologi yang efisien untuk mengatasi kekurangan air bersih di wilayah pesisir. Penelitian ini bertujuan untuk menganalisis Perpindahan Panas Pada Alat Desalinasi Surya Pasif Dengan Variasi Tinggi Penutup. Variasi yang digunakan adalah tinggi penutup 15 cm dan 30 cm, serta material penutup berupa kaca dan plastik UV. Penelitian dilakukan selama 4 hari dengan pengambilan data setiap 5 menit selama 8 jam per hari. Parameter yang diukur meliputi temperatur pada material penyerap, temperatur ruang, temperatur air, intensitas radiasi matahari, dan volume air hasil desalinasi. Hasil penelitian menunjukkan bahwa material UV dengan tinggi 15 cm menghasilkan perpindahan panas tertinggi sebesar 29,04 W/m² pada hari pertama, sedangkan kombinasi kaca dengan tinggi 30 cm memberikan efisiensi desalinasi tertinggi sebesar 17,28% pada hari keempat. Laju evaporasi tertinggi dicapai oleh material UV 15 cm dengan nilai 0,54 W/m². Kombinasi material kaca dengan tinggi 30 cm terbukti memberikan hasil desalinasi yang paling stabil dan efisien. Penelitian ini menunjukkan bahwa pemilihan material dan konfigurasi tinggi penutup sangat berpengaruh terhadap efisiensi sistem desalinasi surya.
creator: Lysandra Dimitry Nggadas
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.3994

Advancing Green Urea Recovery Flow: Enhancing Efficiency Through Flow Conditioning to Control Turbulence and Pressure Drop
type: item
description: Green urea production requires high efficiency, in addition to reducing carbon emissions, high efficiency is needed to prevent waste from being wasted too much. High turbulence results in the creation of biuret that can interfere with the efficiency of urea production, one of the solutions that can be used to overcome this problem using flow conditioners. The analytical method is used to analyze and select the flow conditioner design, with the aim of having the most optimal turbulence and pressure drop values. The numerical method of Computational Fluid Dynamics (CFD) is also used in this study, the purpose of which is to validate the results and visualize the flow. The results show that the difference between the results of the analytical and numerical methods is not more than 5%, and the turbulence value can be reduced by about 5x by only losing about 0.3 bar of pressure from the system without the use of flow conditioners. This shows that the green urea production process can be more efficient and reduce the waste produced.
creator: Albarrobi Nabila Saeful
creator: Jusef Saiful
creator: Ahmad Atif Fikri
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4086

Memformulasikan Rumusan Matematik untuk Nilai Defleksi Pegas Tekan dan Tarik Seiring Penambahan atau Pengurangan Diameter Kawat Baja
type: item
description: Artikel ini memaparkan pengembangan rumusan matematik untuk menghitung defleksi pegas tekan dan tarik baja seiring perubahan diameter kawat. Penelitian ini bertujuan memberikan model yang akurat dan sederhana untuk memprediksi defleksi pegas berdasarkan variasi diameter kawat, yang merupakan parameter penting dalam desain mekanik. Untuk pegas tekan, digunakan model matematik linear yang menunjukkan penurunan defleksi terhadap peningkatan diameter kawat, dirumuskan sebagai δ(d)=a-b.d. Sebaliknya, untuk pegas tarik, defleksi berbanding terbalik dengan pangkat diameter kawat, dan digambarkan melalui rumus δ = kâ‹…d^âˆ’n, di mana k dan n diperoleh melalui analisis regresi. Metode ini memungkinkan perancangan pegas yang lebih efisien dengan memperkirakan perubahan defleksi secara presisi sesuai kebutuhan beban kerja. Formulasi ini, desainer dapat menyesuaikan dimensi kawat pegas secara optimal untuk mencapai nilai defleksi yang diinginkan. Penelitian ini menyimpulkan bahwa pendekatan matematik yang disesuaikan dengan jenis pegas dan parameter material dapat meningkatkan ketepatan prediksi defleksi, sehingga memperbaiki performa dan efisiensi dalam aplikasi industri.
creator: Irene Budayawaty
creator: Yohanes Benediktus Yokasing
creator: Amiruddin Abdullah
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.3780

Analisis Nilai Elongasi Material Terhadap Cracksheet Pada Proses Deep drawing Nozzle pada Unit Evaporator
type: item
description: Penelitian ini bertujuan menganalisis nilai elongasi pada material Galvanized (DX51D, DX54D, DX53D) dan Stainless Steel (SUS304, SUS316, SUS441) sebagai parameter utama dalam proses deep drawing nozzle unit evaporator. Uji tarik dilakukan untuk menentukan kemampuan deformasi plastis tanpa menyebabkan keretakan, serta pencarian indikasi cracksheet yang dapat terjadi selama proses pembentukan. Hasil menunjukkan bahwa material stainless steel, khususnya SUS304 dan SUS441, memiliki nilai elongasi tertinggi sebesar 45%, menunjukkan ketahanan unggul terhadap deformasi ekstrem. Sementara itu, DX54D menjadi galvanis dengan elongasi tertinggi (36%) dan tidak mengalami retak saat deep drawing, berbeda dengan DX51D dan DX53D yang menunjukkan gejala cracksheet. Batas elongasi minimum untuk menghindari kegagalan struktural pada deep drawing ditentukan sekitar 30%. Pemilihan material dengan elongasi tinggi serta optimalisasi parameter proses menjadi krusial dalam menjamin kualitas dan efisiensi produksi. Hasil ini memberikan dasar untuk menentukan material optimal berdasarkan kombinasi performa teknis dan efisiensi biaya.
creator: bhima endra wira yudha
creator: Ali Akbar
creator: Rachmat Firdaus
creator: Mulyadi Mulyadi
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4401

Analisis Performa dan Efisiensi Pompa Sentrifugal Tag Number 220 P1 A/B pada Unit Distillate Hydrotreating di PT. XY
type: item
description: Salah satu pompa yang memanfaatkan gaya sentrifugal dengan hasil kinerja dari impeller serta dapat menggerakkan fluida disebut pompa sentrifugal. Jenis pompa ini tergolong tekanan dinamis, impeller pada pompa ini bekerja untuk mentransfer cairan dari titk satu ke titik lainnya, baik dari aspek ketinggian maupun tekanan. Berdasarkan data, penulis mencoba memaparkan hasil penelitian tentang Analisa kinerja dan effisiensi pompa sentrifugal. Data yang digunakan dalam penelitan ini mencakup data real time dari tekanan hisap, tekanan debit, laju aliran (Q), Densitas (ðœŒ), voltase pompa (V), dan kuat arus (I). Dengan demikian, titik kerja maksimum dari pompa sentrifugal berdasarkan kapasitas flowrate (Q) 57,96 m³/h, Head (H) 688 m, Daya poros (W) 196022,25, Daya hidrolik (W) 85095,45, dan Effisiensi pompa (η) 43,41 %.Â
creator: Roberto Fermadi Sitohang
creator: Abrar Ridwan
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4421

Identifikasi Penyebab vibrasi yang Mengindikasikan Blade Pass Frequency (BPF) DI PT XX
type: item
description: Penelitian ini bertujuan untuk menyelidiki penyebab vibrasi tinggi pada pompa sentrifugal 211-PM-9B PT. XX. Terutama setelah perbaikan bearing. Pengukuran setelah perbaikan menunjukkan puncak tertinggi 3P DE V-VEL (9,77mm/s) pada 4 november 2024. Melalui pengumpulan data vibrasi menggunakan Accelerometer SKF Microlog Analyzer dan analisis spektrum Fast Fourier Transform (FFT),serta data operasional dari DCS dan pressure gauge, penelitian ini mengidentifikasi Blade Pass Frequency (BPF) sebagai indikator utama. Analisi lebih lanjut mengungkapkan ketidakseimbangan impeller sebagai penyebab signifikan, didukung oleh perhitungan gaya (1453,85 N)dan korelasi kuat RPM-amplitudo (k = 1,244 mm/s per RPM) efektivitas dynamic balancing (54,45%reduksi vibrasi) memperkuat temuan ini. Meskipun NPSH memadai,potensi kavitasi lokal dan faktor operasional. Rekomendasi meliputi balancing impeller presisi sesuai standar ISO 1940 dan inpeksi bilah impeller untuk mitigasi vibrasi.
creator: Bobi Septian A Sianipar
creator: Abrar Ridwan
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4428

STUDI TENTANG PENGARUH TEKANAN KOMPAKSI DAN SINTERING PADA CAMPURAN SERBUK Cu, Fe, Si, Ni
type: item
description: Penelitian ini bertujuan untuk menganalisis pengaruh tekanan kompaksi dan suhu sintering terhadap keausan dan kekerasan green body berbahan dasar campuran logam tembaga (Cu), besi (Fe), silikon (Si), dan nikel (Ni). Green body dibuat melalui proses metalurgi serbuk dengan tekanan kompaksi 1178 MPa dan suhu sintering 700°C. Pengujian dilakukan untuk mengukur tingkat keausan menggunakan metode Universal Wear Testing dan kekerasan menggunakan metode Brinell. Hasil penelitian menunjukkan bahwa peningkatan tekanan kompaksi dan suhu sintering berpengaruh signifikan terhadap sifat mekanik green body. Nilai keausan rata-rata spesimen yang diuji adalah 0,0000318 mm³/kg.m, sementara kekerasan rata-rata mencapai 31,84 BHN. Hal ini mengindikasikan bahwa material memiliki ketahanan aus yang baik dan kekerasan yang memadai untuk aplikasi industri. Korelasi antara kekerasan dan keausan juga menunjukkan bahwa material dengan kekerasan yang lebih tinggi cenderung lebih tahan terhadap keausan. Penelitian ini memberikan kontribusi dalam pengembangan material green body dengan sifat mekanik yang optimal, yang diharapkan dapat mendukung peningkatan kualitas produk berbasis logam komposit di industri.
creator: Muhammad Dermawan
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.3712

Analisis Efisiensi Termal PLTGU Muara Karang Blok 2 Menggunakan Sankey Diagram pada Beban 135 MW
type: item
description: The growing demand for electricity requires a proportional increase in power generation to ensure a stable supply for both public and industrial needs. To maintain this stability, Gas and Steam Power Plants (PLTGU) must operate in optimal condition. Thermal efficiency plays a crucial role in determining the plant’s ability to generate electricity effectively. This study aims to analyze the thermal efficiency of PLTGU UP Muara Karang Block 2 at a 135 MW load using the Sankey Diagram approach. This method provides a comprehensive visualization of energy flow and system efficiency. The analysis is based on the First Law of Thermodynamics, focusing on key components such as the compressor, gas turbine, combustor, and other essential elements. The results show an increase in thermal efficiency from 84.92% to 86.40% after an overhaul. This improvement reflects better heat distribution to the main components, indicating more optimal energy conversion. Additionally, the reduction in heat loss signifies an overall enhancement in energy efficiency.
creator: Muhammad Ridwan
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4302

Perancangan Sistem Air blast freezing Berkapasitas 25 Kg dengan Sistem Refrigerasi Cascade Menggunakan Refrigerant R290/R32
type: item
description: Indonesia is a country rich in marine catch, especially shrimp commodities, with a production volume reaching 1.12 million tons, but only 220 thousand tons or approximately 19.64%, are exported. One contributing factor to the low export rate is poor temperature control throughout the cold chain supply process. The aim of this study to design and develop an air blast freezing system with a capacity of 25 kg, and to compare the design results with experimental data. The main focus of the research is to increase the cooling system’s capacity to meet the demands of the cold chain in the storage of marine catch, while maintaining product temperatures consistently between -18 °C and -25 °C. The design results for the low-temperature cycle (LTC) yielded evaporator load of 788.66 W, compressor power of 221.78 W, condenser load of 1317.64 W, and an evaporator surface area of 4.84 m². For the high-temperature cycle (HTC), the evaporator load was 1499.76 W, compressor power was 159.61 W, condenser load was 948.27 W, and condenser surface area was 8.98 m². Experimental tests showed that the system was able to reach product temperatures between -19.6 °C and -25.3 °C, with a design COP of 2.014 and an actual COP of 2.413 for the cascade system
creator: Awaludin Martin
creator: Tikkos Sihombing
creator: Ibnu Rizqullah
creator: Fayzil Auliaswan
creator: Rahmat Iman Mainil
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4399

https://ojs.ummetro.ac.id/index.php/turbo/article/view/4306
type: item
title: Pengembangan dan Optimasi Sistem Pendinginan Mesin Pembakaran Internal dengan Penggunaan Material Phase Change Material (PCM) untuk Meningkatkan Efisiensi Bahan Bakar dan Mengurangi Emisi Gas Buang pada Kendaraan Bermotor
description: Penelitian ini mengkaji penggunaan Phase Change Material (PCM) dalam sistem pendingin mesin pembakaran internal untuk meningkatkan efisiensi pendinginan, mengurangi buangan gas emisi, dan meningkatkan efisiensi bahan bakar. Hasil penelitian menunjukkan bahwa penerapan PCM dapat mengurangi berat sistem, mempercepat waktu pemanasan, serta meningkatkan efisiensi termal dan kinerja sirkulasi mesin. Teknologi ini juga berkontribusi dalam pengurangan pengurangan bahan bakar dan emisi berbahaya, serta memberikan keuntungan signifikan bagi industri otomotif, termasuk pengurangan biaya perawatan dan perpanjangan umur komponen. Penelitian ini menggunakan simulasi CFD-FEM dan pengujian siklus WLTP dan NEDC untuk menghasilkan analisis yang lebih akurat, yang mengonfirmasi keunggulan PCM dalam sistem pendingin. Dengan aplikasi PCM pada berbagai jenis mesin, penelitian ini menawarkan solusi lebih ramah lingkungan, mengurangi emisi CO₂, dan mengoptimalkan kinerja mesin kendaraan.
creator: Zus tian Zustian
creator: Ella Aprilliyah
creator: Rama Abimanyu
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4306

Produksi dan Karakteristik Briket Limbah Ampas Kopi dan Tempurung Kelapa sebagai Energi Alternatif Terbarukan
type: item
description: Meningkatnya kebutuhan energi dan isu lingkungan penyebab perubahan iklim, mendorong minat untuk memanfaatkan limbah perkebunan seperti ampas kopi dan tempurung kelapa sebagai briket. Penelitian ini bertujuan untuk menyelidiki dampak perbandingan komposisi ampas kopi dan tempurung kelapa (25:75%, 50:50%, dan 75:25%) dan adalah jumlah molases sebagai perekat (5 dan 10%). Evaluasi eksperimental tersebut difokuskan pada karakteristik proksimat briket seperti kadar air, kadar abu, kadar zat volatil, dan kadar karbon tetap, serta nilai kalor briket yang telah diproduksi. Hasilnya menunjukkan bahwa briket dengan komposisi 25% arang kopi dan 75% tempurung kelapa dengan perekat 5% menghasilkan nilai kalor tertinggi 30.02 MJ/kg; dan secara tidak langsung berpengaruh terhadap kadar karbon briket. Sebaliknya, nilai kadar air, kadar abu, dan kadar zat volatil tertinggi pada komposisi bahan yang sama teapi menggunakan 10% perekat yaitu sebesar 2.74%, 4.68% dan 59.05%, secara berturut-turut. Temuan ini menyoroti kualitas briket secara signifikan dipengaruhi oleh jumlah perekat tertentu. Dengan demikian, studi ini menunjukkan potensi briket limbah biomassa sebagai sumber energi yang layak dan berkelanjutan, menawarkan manfaat ekonomi dan lingkungan melalui pemanfaatan yang efektif untuk mengurangi emisi karbon.
creator: Fefi Nur Afifah
creator: Erry Ika Rhofita
creator: Shinfi Wazna Auvaria
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4331

Pengaruh Diameter Kawat dan Panjang Koil Pegas Tekan terhadap Defleksi pada Sistem Getaran Ayak
type: item
description: The design of a vibration-based screening system requires adjustment of the compression spring characteristics to meet the required amplitude and working frequency. This study analyzes the effect of wire diameter (d) and spring coil length (No) on spring deflection (δ) and stiffness (k) as key parameters in the design of vibratory sieve systems. A quantitative approach was employed through deflection testing using a spring tester and performance graphs. The results show that increasing the wire diameter from 3 mm to 4 mm reduces deflection by up to 38% and increases spring stiffness by approximately 50%. Conversely, increasing the coil length from 80 mm to 120 mm raises deflection by about ±48%. The spring stiffness constant ranges from 2.4 N/mm to 3.8 N/mm, depending on the dimensional combination. The combination of d = 4 mm and No = 80 mm is suitable for low-frequency vibrations, while d = 3 mm and No = 120 mm is appropriate for high-frequency vibrations. These findings provide technical guidance for adjusting spring characteristics to match the vibration design targets of screening systems, particularly in the processing of both light and heavy materials.
creator: Yohanes Benediktus Yokasing
creator: I.Gusti Ngurah Nitya Santhiarsa
creator: I. Made Parwata
creator: I. Putu Lokantara
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4409

Pengaruh Variasi Temperatur Torefaksi Terhadap Karakteristik Wood Pellet dari Limbah Furnitur Kayu Campuran
type: item
description: Penelitian ini bertujuan untuk mengevaluasi pengaruh proses torefaksi pada wood pellet berbahan limbah furniture campuran terhadap nilai kalor dan sifat kimia sampel. Sampel wood pellet terdiri dari 80% kayu keras (Meranti, Merbau, Ulin, Mahoni, Keruing) dan 20% kayu lunak (Sengon, Pinus), diproses melalui torefaksi pada temperatur 250°C, 275°C, dan 300°C selama 30 menit. Pengujian nilai kalor dilakukan untuk menentukan peningkatan energi, dan analisis proximate serta ultimate dilakukan untuk mengetahui perubahan sifat kimia. Hasil menunjukkan bahwa nilai kalor meningkat secara signifikan setelah proses torefaksi, dengan peningkatan tertinggi pada temperatur 300°C mencapai 5.161 kkal/kg atau naik sekitar 32,3% dibandingkan nilai kalor awal 3.902 kkal/kg. Uji proximate menunjukkan peningkatan kandungan karbon tetap dan abu, serta penurunan kadar air dan zat volatil. Uji ultimate menunjukkan peningkatan kadar karbon hingga 60,19% dan penurunan kadar oksigen hingga 26,61% pada temperatur 300°C. Selain itu, torefaksi meningkatkan sifat hidrofobik wood pellet, terbukti dari ketahanan terhadap perendaman air yang lebih tinggi. Berdasarkan hasil ini, dapat disimpulkan bahwa torefaksi pada temperatur tinggi (300°C) secara efektif meningkatkan kualitas energi dan kestabilan wood pellet, menjadikannya alternatif bahan bakar biomassa yang lebih efisien dan tahan terhadap kelembapan. Â
creator: Agus Apriyanto
creator: Amrul Amrul
creator: Hadi Prayitno
creator: Hanifah Nurjanah Iskandar
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4290

Wave Tank Skala Laboratorium dengan Pembuat Ombak Tipe Piston
type: item
description: Pembangkit listrik tenaga gelombang laut sangat memungkinkan untuk dikembangkan di Indonesia. Selain memiliki potensi wilayah perairan yang sangat luas, penelitian terkait pembangkit listrik tenaga gelombang laut juga sudah banyak dilakukan dan terus dikembangkan hingga saat ini. Sebagai langkah awal sebelum melakukan penelitian lebih lanjut, dibuatlah wave tank skala laboratorium sebagai media untuk mengamati karakteristik gelombang. Tinggi dan panjang gelombang merupakan salah satu parameter yang dijadikan tolak ukur dalam penelitian ini. Desain pembuat ombak tipe piston dengan ukuran tangki yang sudah ditentukan, yaitu panjang 150 cm, lebar 35 cm, dan tinggi 35 cm dibuat sedemikian hingga dengan menghitung beban mekanik. Metode penelitian yang digunakan ialah perancangan teknik. Hasil rancang bangun menghasilkan mesin wave tank model piston dengan ukuran rangka, yaitu panjang 155 cm, lebar 40 cm, dan tinggi 122 cm yang digunakan untuk menopang tangki, motor listrik, dan wavemaker. Jenis penggerak yang digunakan yaitu model piston dengan satu kecepatan putaran yang diatur oleh dimmer. Tinggi gelombang yang dihasilkan bervariasi mulai dari 1,1 cm – 2,5 cm sedangkan panjang gelombang yang dihasilkan bervariasi juga yaitu, 10,5 cm – 20,5 cm.
creator: Deny Murdianto
creator: Rusli Jerius
creator: Marhadi Budi Waluyo
creator: Hadi Santoso
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4342

Construction and Performance Testing of Young Coconut Waste Shredding Machines
type: item
description: The problem of coconut husks and shells that are not utilized was that they are usually discarded as waste, so further processing was needed to overcome this. This study aims to manufacture and test the performance of a young coconut waste shredder. The research methods include machine construction, performance testing, and analysis of test results. The independent variables tested were rotational speed and number of test material cuts. The rotational speed was varied to 1,400 rpm, 1,750 rpm, and 2,333 rpm, while the number of cuts was varied to 4, 6, and 8 cuts. The data obtained were analyzed using a completely randomized design with an F-test. The shredder machine was constructed using a 1 HP electric motor drive, a V-belt transmission system, a shredding chamber diameter of 400 mm, a shredding chamber height of 150 mm, and is equipped with 4 shredding blades. The test results showed the highest chipping capacity of 77.56 kg/hour obtained at a speed of 1,750 rpm and 8 pieces, while the finest chipping results with a chipping length of 4.214 mm and a chipping width of 1.271 mm were obtained at a speed of 2,333 rpm and 8 pieces. Based on the analysis results, the rotation speed had a significant effect on the chopping capacity, while the number of cuts had no significant effect on the chopping capacity. Other analysis results showed that the rotation speed and number of cuts had a very significant effect on the chopping results.
creator: Ellys Mei Sundari
creator: Suhendra Suhendra
creator: Leo Dedy Anjiu
creator: Sri Windari
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4545

Temperature Reduction Performance of Radiative Cooling Paint on Building Roofs
type: item
description: Passive cooling technologies continue to be developed to provide a cooling effect without external energy input. One example is radiative cooling paint (RCP). RCP dissipates heat by emitting thermal radiation and reflecting solar irradiation, thereby reducing the temperature of the coated object. The temperature reduction performance of RCP is influenced by the substrate on which it is applied. Previous studies have generally not included substrates with potential applications for RCP, such as building roofs. This study aimed to evaluate the temperature reduction performance of RCP when applied to different roofing materials. RCP samples were prepared using barium sulfate pigment and applied to corrugated metal roofing, clay roof tiles, and stone-coated metal roofing, then tested under direct sunlight. The results showed that applying RCP reduced the average temperature by 6 °C (13.1%) on corrugated metal roofing, 6.4 °C (13.3%) on clay roof tiles, and 14.1 °C (24.7%) on stone-coated metal roofing.
creator: Muhammad Fuad Abdul Hakim
creator: Mohammad Alexin Putra
creator: Fajar Subekti
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4602

Screw Modification On Plastic Extruder Machine
type: item
description: Plastic extruder machine is a machine that processes material changes from the form of plastic making into extruded changes from solid to liquid form. In the plastic extruder machine there are many machine components used. The components found in the plastic extruder machine are the frame, reduction gear, puller roller, bearing, v-belt, electric motor, pulley, stepper, clutch, air chamber, nozzle, feeder, compression spring, panel box and screw. This study uses an experimental method by changing the screw diameter which was originally 37 mm to 41 mm in addition to changing the diameter size, changes were also made to the screw pitch size which was originally 12 mm to 14 mm. The modified screw that was tested using PLA material with a rotation of 38 rpm produced a flow rate of 0.00129 m ^ 3 / s with a maximum pressure of 10.2866 Mpa. While the screw before modification produced a flow rate of 0.000921 m^ 3 / s and a maximum pressure of 9.5151 Mpa. From the data obtained from the screw, the modification results obtained quite good results compared to the screw before modification.
creator: Devi Andriani
creator: Tri Pratomo
creator: Muhammad Ariyanto
creator: Diky Rahmat Suhendra
creator: Nurhaidah Nurhaidah
creator: Sukhma Kusuma Dewi
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4582

Performance Test of Water Flow Control System and Nozzle Movement in Fountains Integrated with Automatic Plant Irrigation
type: item
description: The presence of fountains in public areas can create a comfortable atmosphere for everyone. Green spaces can provide ecological and aesthetic benefits, so fountains that combine ecological and aesthetic functions were essential. Based on this, research was conducted to test the performance of the water flow control system and nozzle movement control in a fountain integrated with automatic plant irrigation. Water flow testing was conducted by setting the dimmer at angles of 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, and 65°. Nozzle movement testing was carried out by giving servo motor movement commands at angles of 50° – 130° and gradually adding an angle of 4° for each test. The data collected in the study were water flow and nozzle movement accuracy. Based on the test results, the minimum flow rate recorded was 0.141 l/s at an angle of 20°, the maximum flow rate reached 0.775 l/s at an angle of 65°, while the average flow rate from the tests was 0.490 l/s. The nozzle movement system showed an average accuracy of 98.84%, indicating that the system performs very well. The test results showed that the water discharge control and nozzle movement systems were able to produce controlled water jets, both in terms of flow rate and direction.
creator: Suhendra Suhendra
creator: Feby Nopriandy
creator: Irma Fahrizal
creator: Ari Rianto
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4556

DESIGN OF A SANDBLASTING WASTE SIEVE MACHINE (CASE STUDY OF SHIPYARD)
type: item
description: At the shipyard, the sandblasting process is routinely carried out to clean material surfaces from rust and other contaminants. This process produces waste in the form of used sand mixed with metal fragments and other debris, requiring separation before the waste can be reused as a concrete mixture. Currently, the separation process is still performed manually, which is considered inefficient due to the large volume of waste, averaging 42 tons per day. To address this issue, the author designed a sandblasting waste sieving machine to make the separation process more automatic and effective. The structural design and strength analysis were carried out using Autodesk Fusion 360 software. The simulation results of the selected design concept showed a minimum safety factor of 6.51, a maximum von Mises stress of 38.134 MPa on the main frame, and a maximum displacement of 0.186 mm on the sieve holder. The design has an estimated total manufacturing cost of Rp4.244.000,-. Â
creator: Rizal Indrawan
creator: Alfarell Akbar Pradhana Utomo
creator: Ridhani Anita Fajardini
creator: Fipka Bisono
creator: Tri Andi Setiawan
creator: Dhika Aditya Purnomo
creator: Amanda Rosalina
creator: Widya Emilia Primaningtyas
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4559

PENERAPAN TEKNOLOGI MESIN PENGERING BIJI KOPI MENGGUNAKAN SISTEM SOLAR PANEL
type: item
description: Penelitian ini mengintegrasikan perancangan, pembuatan, dan pengujian mesin pengering biji kopi berbasis energi terbarukan menggunakan sistem panel solar untuk meningkatkan efisiensi proses pascapanen. Mesin dirancang dengan rangka besi hollow galvanis (50 × 50× 0,8 mm), tabung pengering berkapasitas ±2–2,4 kg, motor listrik 0,5 HP, gearbox rasio 1:20, serta sistem transmisi gear dengan total rasio 69 yang menghasilkan putaran 20,29 RPM dan torsi 175,624 NÂ·m. Desain mesin dibuat menggunakan perangkat lunak SolidWorks 2022 dan diuji melalui simulasi statik, dengan hasil menunjukkan tegangan maksimum 1,177 MPa, deformasi 0,012 mm, serta faktor keamanan mencapai 174 sehingga rangka aman digunakan. Perhitungan efisiensi termal mencapai 67,36% dengan daya heater 500 Watt yang menghasilkan energi panas 3600 kJ dan diserap 2425,1 kJ oleh biji kopi. Proses fabrikasi dilakukan melalui tahapan marking, cutting, rolling, bending, welding, assembly, wiring, dan finishing dengan material utama besi hollow, plat galvalum, dan plat jaring stainless steel. Pengujian kadar air biji kopi dilakukan dengan variasi waktu 20, 40, dan 60 menit, namun hasil signifikan baru dicapai setelah 3 jam 30 menit ketika kadar air turun dari 26% menjadi 12% sesuai standar SNI, dengan massa berkurang dari 1320 gram menjadi 695 gram. Sebagai pembanding, metode pengeringan manual menggunakan sinar matahari memerlukan waktu ±3–4 minggu untuk mencapai kadar air serupa. Hasil penelitian menunjukkan bahwa mesin pengering kopi berbasis panel solar mampu mempercepat proses pengeringan secara signifikan, lebih konsisten, ramah lingkungan, tidak bergantung pada kondisi cuaca, serta berpotensi meningkatkan produktivitas petani kopi di Indonesia.
creator: Yusup Nur Rohmat
creator: Muhammad Luthfi
creator: Adi Kusmayadi
creator: Nanang Setiawan
creator: Ferdian Dwi Susanto
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4551

Analisis Mikrostruktur dan Performa Aus Baja S45C Dengan Perlakuan Panas pada Suhu 700 °C, 750 °C, dan 800 °C
type: item
description: This study aims to evaluate the effect of heat treatment with varying temperatures on the hardness, microstructure, and wear resistance of S45C carbon steel. Specimens were heated at temperatures of 700 °C, 750 °C, and 800 °C for 30 minutes, then rapidly cooled using a saltwater medium. Test results indicate that increasing the heat treatment temperature significantly enhances surface hardness, with the highest value recorded at 800 °C. Microstructural observations reveal that martensite phase dominates at high temperatures, contributing to increased hardness and resistance to deformation caused by friction. Wear testing showed a negative correlation between hardness and wear volume, with specimens of higher hardness exhibiting narrower and smoother wear marks. These findings confirm that heat treatment temperature control is a key factor in optimising the surface performance of S45C steel for engineering applications requiring high wear resistance.
creator: Agung Supriyanto
creator: Agus Jamaldi
creator: Margono Margono
creator: Budi Nugroho
creator: Afif Faishal
creator: Fedrian Ahmadthur Rengga
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4561

Evaluasi Struktural Rancangan Dongkrak Ulir sebagai Alat Pengangkat pada EV Maung Galunggung Menggunakan Analisis Elemen Hingga
type: item
description: Penelitian ini bertujuan merancang dan menganalisis kekuatan struktur dongkrak ulir sederhana yang digunakan untuk mobil listrik Maung Galunggung dengan jarak rendah antara tanah dan rangka bawah sebesar 15 cm. Perancangan dilakukan menggunakan perangkat lunak CAD, sementara analisis kekuatan struktur dilakukan melalui metode Finite Element Analysis (FEA) berbasis Computer Aided Engineering (CAE). Model 3D dongkrak meliputi komponen batang ulir, tuas penggerak, dan penopang, dengan material st 37 yang mempunyai yield stress sebesar 225 Mpa. Simulasi dilakukan untuk mengetahui distribusi tegangan Von Mises, displacement material, dan faktor keamanan pada kondisi pembebanan sebesar 1 ton. Hasil analisis menunjukkan tegangan maksimum sebesar 0,5348 MPa, jauh di bawah batas elastis material, dengan displacement material Â maksimum hanya 6,163 × 10â»â´ mm pada bagian top plate. Faktor keamanan maksimum mencapai 15, menunjukkan kekuatan struktur sangat tinggi terhadap beban yang diberikan. Nilai ini mengindikasikan desain aman digunakan, meskipun terdapat potensi overdesign yang memungkinkan optimasi material untuk efisiensi biaya dan berat. Penelitian ini diharapkan menjadi acuan bagi pengembangan desain dongkrak yang lebih efisien, andal, dan aman, sekaligus memberikan kontribusi bagi industri otomotif dalam penyediaan peralatan kerja yang mendukung keselamatan dan produktivitas
creator: Widyan toro
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4586

Evaluasi Pemilihan Material pada Pemotong Kertas Manual Kapasitas Besar untuk Optimalisasi Desain Produk Lokal pada Komponen Pisau dan Rangka
type: item
description: Penelitian ini mengkaji pemilihan material pada pemotong kertas manual kapasitas besar melalui pendekatan berbasis literatur dan data sekunder, dengan mengacu pada konfigurasi umum produk yang telah tersedia di pasaran. Fokus diarahkan pada analisis karakteristik teknis material dua komponen utama—pisau dan rangka—guna merumuskan rekomendasi desain produk lokal yang efisien, andal, dan tetap ekonomis. Analisis difokuskan pada perbandingan teknis material secara komparatif dan evaluasi multi-kriteria melalui weighted decision matrix. Hasil menunjukkan bahwa material seperti baja perkakas D2 dan SKD11, serta baja paduan rendah solid, memberikan performa unggul pada produk profesional, namun tidak efisien secara biaya untuk skala UMKM. Alternatif material seperti SK5 untuk pisau dan AISI 1020 untuk rangka dinilai mampu memberikan kompromi optimal antara performa teknis dan efisiensi biaya, dengan tetap mempertimbangkan ketersediaan lokal dan kemudahan manufaktur. Kajian ini memberikan kontribusi terhadap perancangan ulang pemotong kertas berbasis prinsip rekayasa material yang adaptif terhadap kebutuhan industri nasional skala kecil dan menengah.
creator: Iswanto Iswanto
creator: Agung Budy Wijoyo
creator: Mulyadi Mulyadi
creator: A’rasy Fahruddin
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4424

Investigation of the Influence of Plate Thickness on Orifice Flow Using the Computational Fluid Dynamics Method
type: item
description: Piping systems provide effective fluid distribution and are crucial to industrial operations. Despite their effectiveness, flow control devices like orifice plates can result in significant pressure drop that can lower system efficiency and wear out the system’s mechanical components. This study aims to optimize orifice plate design by examining the effect of plate thickness on flow characteristics using Computational Fluid Dynamics (CFD). Simulations were conducted on orifice plates with thicknesses ranging from 1.5T to 3.0T under Reynolds numbers from 10â´ to 10â¶. Results show that increasing the thickness reduces pressure loss, with the 3T configuration achieving a 1.35% reduction compared to the baseline. Improvements are linked to a higher discharge coefficient (Cd), shorter flow reattachment distance (Xr), smaller recirculation zones, and reduced velocity through the orifice throat. These findings suggest that geometric modifications can enhance flow performance and reduce the risk of mechanical damage in piping systems.
creator: Mokhammad Bahtiar Rivai
creator: James Julian
creator: Fitri Wahyuni
creator: Riki Hendra Purba
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4286

THE EFFECT OF OFFSET RATIO ON OFFSET JET FLOW STRUCTURE
type: item
description: Jet flow is a crucial fluid dynamic phenomenon that has been extensively studied. It is essential for various industrial applications, including surface cleaning, flow control, and cooling electronic components. Offset jet is an innovation in jet flow configuration that offers advantages in flow pattern control by expanding the impingement area and regulating surface pressure distribution. This study employed a Computational Fluid Dynamics (CFD) approach to investigate the influence of variations in the offset jet ratio on the aerodynamic characteristics of the flow, specifically the impingement zone area, pressure coefficient distribution, and skin friction coefficient. The standard k-ε turbulence model, utilizing a structured mesh and a Reynolds number of 10,000, was employed in this research. The number of mesh elements used was a fine mesh of 200,000 with an error percentage of 0.09436%. The results of the study show that an offset ratio of 3 produces the highest cf value of 0.0047 and a stable Cp distribution of 0.218, while also providing the best impingement zone area. These findings indicate that OR 3 is the most optimal configuration in terms of aerodynamics for precision system applications, with a focus on flow pattern control and wide impingement zone coverage.
creator: Rifqi Ramadhani
creator: James Julian
creator: Fitri Wahyuni
creator: Riki Hendra Purba
creator: Fathin Muhammad Madhudhu
creator: Elvi Armadani
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4538

Perancangan Freeze Vacuum Drying Menggunakan Thermal Energy Storage untuk Mengeringkan Lidah Buaya dengan Kapasitas 4 kg
type: item
description: Freeze vacuum drying is known as the best drying method in maintaining the nutritional quality and physical appearance of the product. However, this method has the disadvantages of a slow drying rate and high energy consumption. This study aims to improve the efficiency of the drying process by utilizing waste heat from the condenser using a thermal energy storage system using Phase Change Material (PCM) in the form of paraffin wax. This study uses a system design method that is continued to the testing stage with the results of the design of the tube diameter used, namely 0.00953 m, then the evaporator dimensions are obtained with a pipe length of 23 m, and the evaporator surface area is 7.13 x 10-5 m2. For the condenser, the pipe length is 15.9 m, and the condenser heat transfer area is 0.4762 m2. Energy consumption for drying 4 kg of aloe vera using Thermal Energy Storage (TES) is 8.937 kWh, with a design Coefficient of Performance (COP) value of 3.8 and an actual COP of 2.5.
creator: Awaludin Martin
creator: Wulan Cahyati
creator: Warits Adriyandy
creator: Rahmat Iman Mainil
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4398

Proses Perbaikan Cooler Fan 5W1K14 Dengan Mendekteksi Kerusakan Berdasarkan Analysis Vibration
type: item
description: Perawatan mesin industri memiliki peran penting dalam menjamin kontinuitas dan efisiensi proses produksi. Penelitian ini bertujuan untuk menganalisis kerusakan pada unit Cooler Fan 5W1K14 milik PT Semen Padang melalui pendekatan predictive maintenance berbasis analisis vibrasi. Cooler fan merupakan komponen krusial dalam sistem pendinginan klinker, sehingga kegagalannya dapat mengganggu keseluruhan proses produksi. Pengambilan data dilakukan menggunakan alat VibXpert dan dianalisis dengan perangkat lunak Omnitrend. Hasil pengukuran vibrasi awal menunjukkan nilai amplitudo yang melebihi ambang batas standar ISO 10816, khususnya pada titik B2 arah horizontal dengan nilai 8,94 mm/s, yang menandakan adanya kelonggaran mekanis (mechanical looseness). Spektrum vibrasi mengonfirmasi adanya harmonik yang menjadi indikator utama kerusakan pada bearing. Setelah dilakukan penggantian bearing tipe SKF 22216 EK/C3 dan housing bearing, serta pelumasan dan pengukuran ulang, nilai vibrasi menurun secara signifikan ke zona aman, dengan nilai tertinggi 3,82 mm/s. Hasil ini menunjukkan bahwa metode analisis vibrasi efektif dalam mendeteksi dan menanggulangi kerusakan pada mesin berputar. Penelitian ini diharapkan dapat menjadi referensi bagi industri dalam mengoptimalkan strategi pemeliharaan mesin secara prediktif untuk meminimalkan downtime dan biaya operasional.
creator: sunaryo sunaryo
creator: Daffi Andra
creator: Legisnal Hakim
creator: Bambang Surono
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4497

Optimalisasi Panel Surya dengan Sirip Pendingin untuk Pengembangan Kapal Listrik Berbasis Energi Terbarukan di Sungai Mahakam
type: item
description: Penggunaan energi surya melalui panel fotovoltaik semakin meluas sebagai solusi penyediaan listrik untuk kebutuhan domestik dan sistem penerangan jalan. Salah satu tantangan utama dalam optimalisasi panel surya adalah kenaikan suhu operasional akibat tingginya intensitas radiasi matahari, yang berdampak langsung pada penurunan kinerja konversi energi. Penelitian ini bertujuan untuk menganalisis efektivitas penerapan sirip pendingin berbahan aluminium pada panel surya, dengan variasi sudut kemiringan sirip sebesar 30° dan 45°, serta dibandingkan dengan kondisi tanpa sistem pendinginan, dalam menurunkan suhu kerja panel. Pendinginan dibantu oleh aliran udara untuk meningkatkan efisiensi perpindahan panas. Hasil eksperimen menunjukkan bahwa konfigurasi sirip pada sudut 30° menurunkan suhu panel menjadi 43,60°C pada iterasi ke-13, setara dengan reduksi temperatur sebesar 3,13%. Sementara itu, sudut 45° menghasilkan suhu akhir 41,80°C dengan efisiensi penurunan suhu sebesar 6,68%. Sebagai perbandingan, panel tanpa pendingin mengalami suhu tertinggi mencapai 44,40°C. Secara umum, penggunaan sirip pendingin terbukti mampu menurunkan suhu panel, dengan sudut 45° memberikan performa pendinginan yang lebih baik dibandingkan sudut 30°, meskipun selisih hasilnya tidak terlalu signifikan.
creator: Binyamin Binyamin
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4355

Analisa Pengaruh Metode Pengurangan Kadar Air terhadap Kualitas Pemipilan Jagung menggunakan Mesin Pemipil Type Spiral Rotary
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description: Penelitian ini bertujuan untuk menganalisis pengaruh pengurangan kadar air terhadap kualitas pemipilan jagung menggunakan mesin pemipil tipe spiral rotary. Jagung hibrida Bima 9 diuji dengan empat perlakuan pengeringan yang berbeda, yaitu tanpa pengeringan (S0), dijemur selama 8 jam (S1), dioven selama 1 jam pada suhu 90°C (S2), dan dioven selama 2 jam pada suhu 90°C (S3). Sampel jagung dipipil menggunakan mesin pemipil tipe spiral rotary, dan hasil pemipilan dianalisis berdasarkan efisiensi mesin, kualitas pemipilan, dan kerusakan biji. Hasil penelitian menunjukkan bahwa pengurangan kadar air meningkatkan efisiensi mesin dan kualitas pemipilan, dengan kadar air 18.3% (S3) menghasilkan rata-rata efisiensi mesin tertinggi sebesar 85% dan pemipilan yang bersih, meskipun dengan sedikit kerusakan pada biji. Kadar air yang lebih tinggi, seperti pada S1 (24.4%), menghasilkan efisiensi mesin yang rendah dan banyak biji yang tertinggal pada tongkol. Penelitian ini menyarankan bahwa kadar air optimal untuk pemipilan jagung menggunakan mesin pemipil spiral rotary adalah sekitar 18–22%. Temuan ini memberikan kontribusi dalam meningkatkan efisiensi pemipilan jagung di industri pengolahan pakan ternak.
creator: Aswar Aswar
creator: Simon Parekke
creator: Ichsan Ristiawan
creator: Zulkarnain Arifin
creator: Muhammad Fathirahman
creator: Dwilma Shopie
creator: Bambang Surono
creator: Akhmad Syarief
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4539

Analisis Pengaruh Pahat CNMG 120404 pada Proses Bubut CNC terhadap Kekasaran Permukaan Baja S45c dengan Metode Taguchi
type: item
description: Material baja S45C banyak digunakan pada poros pompa sentrifugal karena kualitas permukaannya dapat dioptimalkan melalui pemesinan bubut CNC. Penelitian ini bertujuan menentukan jenis kode pahat CNMG yang sesuai untuk menghasilkan kekasaran permukaan baja S45C menggunakan metode Taguchi. Parameter yang dijelaskan meliputi kecepatan spindel, kecepatan pemakanan, dan kedalaman potong. Hasil menunjukkan bahwa pahat CNMG 120404 menghasilkan kekasaran lebih halus (Ra 1,626 µm), Kondisi optimal dicapai pada kecepatan spindel 1910 RPM, kecepatan pemakanan 0,168 mm/Rev, dan kedalaman potong 0,25 mm. Pahat dengan radius hidung lebih kecil (0,4 mm) lebih sesuai untuk menghasilkan permukaan halus pada baja karbon S45C.
creator: zio eldi mahdan
creator: Eko Yudo
creator: Zulfitri yanto
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4573

Reverse Engineering dan Evaluasi Desain pada Komponen V-Plow Conveyor Belt Jenis Bulk Material Handling menggunakan Metode Elemen Hingga
type: item
description: This paper discusses reverse engineering and design evaluation of the V-Plow component in conveyor belt systems used for handling bulk materials in the mineral and coal industry. V-Plow functions as a carryback material cleaning tool that can be carried to the bottom of the tail pulley on the conveyor belt. The absence or non-optimality of this tool can cause extreme damage to the tail pulley due to material carryback from the head pulley. This research aims to evaluate and redesign the V-Plow so that it has a more appropriate safety factor compared to the existing design. Design changes also include the addition of springs to improve V-Plow performance. Tests were carried out using SolidWorkss software, and the stress analysis on the belt was calculated physically. The research results show that the existing design has a safety factor that is too large, namely 22.5, which indicates high production costs and over-specification. The redesign succeeded in reducing the safety factor to 6, which is still within safe limits. In accordance with CEMA standards, the optimum tension on the belt is 5 lb/in belt width. By adding a three spring design, the optimal force F = 355.67 N, twisting moment ð‘€=11.3 ð‘ð‘š, torsion spring constant ð¾ ð‘¡ð‘œð‘Ÿð‘ ð‘–ð‘œð‘›=28.577 ð‘ð‘š/ð‘Ÿð‘Žð‘‘, and working angle of the torsion spring ð›¼= 22.63 degrees. The frame weight has also been reduced from +116 kg to +83 kg (28%) through the new design. This research proves that the V-Plow redesign not only increases efficiency but also reduces production costs, making it a more optimal and economical solution for the mineral and coal industry.
creator: Febriyanto Febriyanto
creator: Sally Cahyati
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.3890

Evaluasi Termal Heatsink dengan Variasi Arah Aliran pada Sirip Vertikal dan Sirip Bersegmen untuk Pendinginan Pasif Photovoltaic
type: item
description: Penurunan kinerja modul Photovoltaic (PV) akibat meningkatnya temperatur permukaan masih menjadi tantangan utama yang membatasi efisiensi konversi energi listrik. Salah satu solusi yang potensial adalah menambahkan heatsink pada bagian bawah modul sebagai media pelepas panas. Penelitian ini bertujuan menganalisis sekaligus membandingkan kinerja termal heatsink dengan konfigurasi sirip vertikal dan sirip bersegmen terhadap variasi arah aliran udara. Simulasi numerik dilakukan menggunakan ANSYS Fluent (CFD) melalui beberapa tahapan: perancangan geometri PV dan heatsink, pembuatan mesh, penentuan boundary condition, serta pengujian variasi sudut aliran udara sebesar 0°, 22,5°, 45°, 67,5°, dan 90° dengan kecepatan 2 m/s. Hasil simulasi menunjukkan bahwa heatsink dengan sirip bersegmen mampu menurunkan temperatur maksimum permukaan PV hingga 3 °C (5,6%) dibandingkan sirip vertikal pada sudut aliran 0°. Selain itu, perubahan sudut aliran memberikan pengaruh lebih besar pada sirip vertikal dengan selisih temperatur rata-rata 1,7 °C, sementara pada sirip bersegmen hanya 0,5 °C. Temuan ini menegaskan bahwa konfigurasi sirip bersegmen lebih adaptif terhadap dinamika arah aliran udara, sehingga berpotensi diterapkan pada kondisi nyata dengan karakteristik angin berubah-ubah. Nilai kebaruan (novelty) penelitian ini terletak pada pemodelan numerik yang secara langsung membandingkan kinerja sirip vertikal dan sirip bersegmen terhadap variasi arah aliran — topik yang masih jarang dilaporkan dalam studi pendinginan pasif PV.
creator: Ahmad Yonanda
creator: Qithfirul Aziz
creator: Amrizal Amrizal
creator: Muhammad Irsyad
creator: Akmad Riszal
creator: Harmen Harmen
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4549

Analisis variasi fraksi volume serat pelepah nipah material filler pada komposit papan partikel semen serat pelepah nipah-cangkang kerang kepah
type: item
description: Papan partikel semen merupakan material komposit yang terbuat dari kombinasi partikel lignoselulosa dan semen Portland sebagai bahan pengikat. Partikel lignoselulosa pada penelitian ini menggunakan serat pelepah nipah dan serbuk cangkang kerang berfungsi sebagai pengisi (filler) sedangkan semen Portland berperan sebagai matriks pengikat yang meningkatkan kekuatan mekanik dan ketahanan terhadap faktor lingkungan. Komposisi fraksi volume serat pelepah nipah yang digunakan yakni sebesar 30% wt, 40% wt, dan 50% wt dengan komposisi serbuk cangkang kerang kepah sebesar 20% wt. Spesimen komposit papan partikel semen ini dibuat menggunakan metode compression molding dengan beban penekanan sebesar 3 ton dan dilakukan pengujian fisik dan mekanik untuk mengetahui karakteristik komposit partikel semen. Hasil penelitian menunjukkan bahwa semakin tinggi fraksi volume serat pelepah nipah akan menurunkan nilai densitas, meningkatkan kadar air, meningkatkan kemampuan absorbsi air, serta menurunkan nilai kekuatan lentur (modulus of rapture). Hasil pengujian tersebut menunjukkan densitas papan partikel semen telah memenuhi persyaratan sesuai standar ISO 8335, JIS A 5417, namun tidak memenuhi standar SNI 03-105-2006. Nilai kadar air spesimen menunjukkan telah memenuhi persyaratan memenuhi persyaratan sesuai standar ISO 8335, JIS A 5417, dan SNI 03-105-2006. Kekuatan lentur spesimen pada fraksi volume serbuk cangkang kerang 30% wt telah memenuhi standar ISO 8335, JIS A 5417, dan SNI 03-105-2006, namun fraksi volume serat pelepah nipah sebesar 40% wt serta 50% wt hanya memenuhi standar JIS A 5417.
creator: Mirza Pramudia
creator: Mahrus Khoirul Umami
creator: Maga Herdinan
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4519

PENGARUH WAKTU PEMANASAN DAN MEDIA KOROSI TERHADAP LAJU KOROSI BAJA ASTM A36 SEBAGAI BAHAN CHAMBER INCENERATOR
type: item
description: An incinerator is a machine designed to process solid waste through high-temperature combustion technology. Continuous combustion may lead to corrosion, which is often considered an inevitable problem. The purpose of this study is to investigate how combustion duration and corrosive media affect the corrosion rate. The research method employed was an experimental design involving the heating of material. Tests were conducted to analyze the effect of combustion time and corrosive media in the incinerator chamber on the corrosion rate. The material used was ASTM A36 steel with dimensions of 70 mm × 50 mm × 5 mm. The corrosive media employed were rainwater, H₂SO₄, and HCl. The material was heated at 700 °C for 3, 5, and 7 hours. The immersion time in corrosive media was 30 minutes, followed by a cooling period of 7 days. The results indicated that the highest corrosion rate occurred at a combustion time of 7 hours. Thus, the longer the combustion time, the greater the reaction, resulting in an increased corrosion rate. The use of different corrosive media also influenced the corrosion rate. It was found that the highest corrosion rate was 0.00534 mm/year after 7 hours of heating in HCl solution, while the lowest corrosion rate was approximately 0.00077 mm/year in rainwater after 3 hours of heating. Therefore, prolonged heating not only enhances the reaction but also significantly increases the corrosion rate.
creator: Eko Nugroho
creator: Nurlaila Rajabiah
creator: Bambang Surono
creator: Wahyu Seto Aji
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4734

Perancangan Mesin Pencetak Briket Limbah Pelepah Sawit Sistem Hidrolik di Kota Bontang
type: item
description: Oil palm frond waste is an abundant biomass that has not been optimally utilized in Bontang City, East Kalimantan, with the potential for processing into briquettes as an alternative energy source. This study aims to design and produce a briquette molding machine for oil palm frond waste with a hydraulic system using SolidWorks 2011 software, and to determine the effect of pressure variations on the quality of the resulting briquettes. The research method includes literature study, 3D design, machine construction, and testing of components and briquette results. The machine is designed with a UNP 80 frame, a cylindrical mold, a press piston, a hydraulic jack, and a return spring. Tests were carried out at three pressure variations, namely 50 bar, 100 bar, and 150 bar. The results showed that the pressure of 150 bar was 0.00182 g/cm³, while the lowest water content was also found at a pressure of 150 bar, namely 8.33%, resulting in denser and more flammable briquettes. The lowest ash content was 5.71% at 100 bar, indicating the least combustion residue at medium pressure. Overall, the hydraulic briquette press was able to operate stably and produce briquettes with quality that meets biomass fuel standards. This research is expected to provide an alternative solution for utilizing biomass waste while increasing the productivity of (UMKM) in Bontang City.
creator: Ratnawati Ratnawati
creator: Lukito Dwi Yuono
creator: Fahru Rozy
creator: Aswar Aswar
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4863

Analisis Perbandingan Kekuatan Mekanik Komposit Resin Polyester Berpenguat Serat Sabut Kelapa, Serat Ijuk, dan Serat Pohon Pisang sebagai Material Alternatif Pembuatan lambung Perahu
type: item
description: Keterbatasan material kayu konvensional sebagai bahan baku konstruksi perahu mendorong pengembangan material alternatif berbasis serat alami. Salah satu material alternatif yang bisa dijadikan material tersebut adalah material komposit. Material komposit adalah gabungan dari dua material yang terdiri dari perekat dan penguat. Penelitian ini bertujuan untuk menganalisis pengaruh variasi jenis serat sabut kelapa, serat ijuk dan serat pohon pisang terhadap kekuatan lentur dan ketahanan impak komposit yang diperkuat dengan resin polyester. Tiga jenis serat yang digunakan diberi perlakuan dengan perendaman NaOH 5%. Pembuatan spesimen dilakukan metode hand lay-up dan pengujian mekanik mengacu pada standar ASTM D790-02 untuk bending dan ASTM E-23 untuk impak. Komposisi resin 70% dan serat 30%. Hasil pengujian bending tertinggi 69,63 Mpa pada komposit serat sabut kelapa dan nilai terendah 32,6 Mpa pada komposit serat ijuk. Pada pengujian impak nilai tertinggi 49,08 kj/m2 pada komposit serat kelapa dan nilai terendah sebesar 13,63 kj/m2 pada komposit serat ijuk. Hasilnya menunjukkan komposit serat sabut kelapa lebih baik dibandingkan serat batang pisang dan serat ijuk. Ini menunjukan bahwa kandungan hemiselulosa yang seimbang memberikan fleksibilitas tanpa mengurangi kekuatan. Berdasrkan BKIÂ komposit serat sabut kelapa bisa dijadikan bahan untuk pembuatan lambung Â perahu
creator: Yulianto Yuliyanto
creator: Riska Riska
creator: Boy Rollastin
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4626

Analisis Numerik Multifase Transportasi Slurry Abu Terbang Berkonsentrasi Partikel Tinggi
type: item
description: Transportasi slurry abu terbang mengalami inefisiensi energi akibat resistensi aliran yang tinggi pada pipa konvensional berbentuk lingkaran. Penelitian ini memancarkan pengaruh geometri penampang pipa yaitu lingkaran, spiral dengan empat lobus, dan spiral dengan enam lobus terhadap penurunan tekanan, faktor akurasi, reduksi drag, dan distribusi fraksi volume pada konsentrasi padatan masing-masing 50%, 60%, 65%, 68%, dan 70%. Simulasi Computational Fluid Dynamics (CFD) dilakukan dengan kondisi kecepatan masuk konstan 1.5 m/s. Hasil simulasi menunjukkan bahwa pipa spiral enam lobus secara konsisten memberikan penurunan tekanan dan faktor terjadinya terendah, dengan reduksi drag maksimum sebesar 33,78% pada konsentrasi padatan 70%. Analisis fraksi volume mengindikasikan akumulasi partikel yang lebih signifikan di dekat dasar pipa pada konsentrasi tinggi, yang disebabkan oleh pengendapan gravitasi. Secara keseluruhan, pipa spiral enam lobus menampilkan kinerja hidrolik yang unggul melalui pengurangan resistensi aliran secara efektif, sehingga menjadi alternatif desain yang menjanjikan untuk sistem transportasi slurry dengan konsentrasi tinggi.
creator: Farul Apriansa
creator: Ridwan Ridwan
creator: Iwan Setyawan
creator: Tri Mulyanto
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4506

Pengaruh Arah Pengerolan dan Orientasi Butir Logam Terhadap Sifat Mekanik Magnesium AZ31B Untuk Aplikasi Implan Biomedik Mampu Terdegradasi (Biodegradable Implant)
type: item
description: This study investigates the effects of rolling direction and grain orientation on the mechanical properties of AZ31B magnesium alloy, with a focus on its application in biodegradable implants. The research was conducted experimentally by preparing tensile test specimens from AZ31B sheet plates, cut in two different directions: parallel (0°, X) and perpendicular (90°, Y) to the rolling direction. Static tensile testing was performed in accordance with ASTM B557 standards to measure the material's mechanical properties. The results indicate mechanical anisotropy, where specimens in the X direction exhibited an average yield strength of 198.78 MPa, while specimens in the Y direction achieved a value of 78.21 MPa, only 39.3% of the X direction value. This difference is attributed to the formation of crystallographic texture during the rolling process. The modulus of elasticity showed similar properties, with values of 44-45 GPa in both directions. These findings demonstrate that grain orientation and rolling direction significantly affect the mechanical properties of the material, which is crucial in designing degradable magnesium AZ31B implant materials.
creator: Maherariyat Maherariyat
creator: Mohammad Baddarudin
creator: Irza Sukmana
creator: Sugiyanto Sugiyanto
creator: Asep Sukohar
creator: A Yudi Eka Risano
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4610

Optimizing the Production of Glass Ceramic from East Lampung Basalt Rock Using Taguchi and ANOVA Analysis Methods
type: item
description: Glass-ceramics are fine-grained polycrystalline materials produced by controlled crystallization in the glass phase. The raw material for glass ceramics is basalt rock from East Lampung mixed with additives (SiO₂, MgO, and CaO). The production of glass ceramics begins with melting at 1200 °C for 2 hours until melting. The melted basalt is quenched using aquadest water with a pH of 7 to produce glass material. The glass material is ground using a ceramic ball mill and sieved with a 325 mesh. The glass material undergoes nucleation at 600 °C for 2 hours, followed by crystallization at 1,050 °C for 3 hours, and thermal crystallization (devitrification) at 1,050 °C for 3 hours to form the crystalline phase. The additive composition was varied using the Taguchi method to analyze its effect on density. The density test results showed values ranging from 2.1 to 3.8 g/cm³, depending on the additive ratio used. An increase in CaO and MgO content tends to increase density due to the formation of crystalline phases such as pyroxene, anorthite, and olivine. Conversely, excessive addition of SiO₂ can reduce density due to the growth of amorphous phases. Taguchi analysis identified Silica (SiO2) as the Rank 1 parameter influencing density. Meanwhile, ANOVA analysis yielded an optimal percentage contribution of silica at 34.57%.
creator: Syaipudin Anwar
creator: Irza Sukmana
creator: Zulhanif Zulhanif
creator: Rizal Adi Saputra
creator: Tarkono Tarkono
creator: A Yudi Eka Risano
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4611

ANALISIS KOMPARATIF PROSES PIROLISIS DARI BAHAN SAMPAH PLASTIK DAN BIOMASSA TERHADAP HASIL PRODUK
type: item
description: Pyrolysis is a process of heating materials at high temperatures with little or no oxygen to chemically break down materials, to produce products such as fuel and liquid smoke. The purpose of this study was to determine the process, quantity, and characteristics of the products obtained from plastik waste and biomass. This research method uses a barner fueled by LPG gas. Using raw materials of LDPE plastik waste and biomass (rice husk) with a weight of 1.5 kg each. Using a batch type pyrolysis reactor and a straight pipe condenser with a diameter of 1 inch and a length of 4 m. The results showed that the two raw materials produced significantly different product proportions. LDPE pyrolysis produced a liquid product with a volume of 419 (mL) and a solid of 0.825 (kg), and had a higher calorific value of 10648.21 (kJ/kg) than rice husk. Meanwhile, rice husk pyrolysis produced a larger liquid (742 mL) with 0.316 kg of lower solids and a lower calorific value (8761.33 kJ/kg). This difference confirms that the type of feedstock significantly determines the quality and quantity of bio-oil or pyrolysis oil produced, which is crucial for renewable energy development and waste management.
creator: Kemas Ridhuan
creator: Tri cahyo wahyudi
creator: Diego Antonio
creator: Riki Renaldi
rights: Copyright (c) 2025 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4890

Pengujian Eksperimental Keausan Bahan Alumunium, Tembaga dan Baja Karbon Menggunakan Uji Keausan Skala Laboratorium Type Pin On Disc
type: item
description: Keausan menentukan kinerja dan umur pakai komponen mekanik. Studi ini mengevaluasi ketahanan aus aluminium, tembaga, mild steel, alloy steel, dan stainless steel menggunakan tribometer Pin-on-Disc skala laboratorium pada gesekan kering. Spesimen silinder (Ø10mm×30 mm) diuji pada kecepatan 290 rpm, lintasan 150 m, dengan dua variasi beban yaitu 3,5 N dan 4,0 N. Laju keausan spesifik dihitung dari perubahan massa dan beban, disertai observasi makroskopik pola keausan. Hasil menunjukkan perbedaan nyata antar material: stainless steel terbaik dengan laju keausan terendah 1,1×10â»5 cm³/NÂ·m dan pola abrasi ringan. Mild steel dan alloy steel menunjukkan stabilitas terhadap peningkatan beban dengan respon keausan rendah, masing-masing 3,9% dan 5,0%. Aluminium memiliki laju keausan tertinggi dan respons hingga 19,9%, dengan indikasi delaminasi serta akumulasi serpih aus. Korelasi antara data kuantitatif dan morfologi permukaan menegaskan bahwa kombinasi kekerasan tinggi, keuletan memadai, dan stabilitas lapisan oksida merupakan penentu utama ketahanan aus.
creator: Aswar Aswar
creator: Simon Parekke
creator: Harjuma Harjuma
creator: Bambang Surono
creator: Sulis Dri Handono
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4677

Komposit Berbasis Serat Tangkos Kelapa Sawit: Kajian Fisik dan Mekanis
type: item
description: This research explores the use of oil palm empty fruit bunch waste fibers as an environmentally friendly reinforcement material for composite applications, aiming to replace conventional materials. The fabrication process utilized empty fruit bunch fibers, resin, and polylactic acid (PLA), with components produced using 3D printing technology. Mechanical properties were evaluated through tensile testing (ASTM D3039), compressive testing (ASTM D695), and Vickers microhardness testing (ASTM E384). The results showed an average maximum tensile strength of 8.18 MPa, while compressive testing yielded a maximum strength of 3.95 MPa. Vickers hardness values ranged from 19.53 to 29.04, with an average of 25.73. These findings highlight the potential of empty fruit bunch fiber composites as an alternative material that supports waste reduction and sustainability in the palm oil industry. However, further optimization of fiber fraction and surface treatment is needed to improve mechanical performance. This study not only contributes to scientific knowledge but also opens opportunities for sustainable material innovation in engineering applications
creator: Sandi Yudha Barri Zaqy
creator: Satrio Darma Utama
creator: Wibi Pramanda
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4725

Perancangan Modifikasi Upper Arm Suspensi Belakang Honda Civic 2001 - 2005 Dengan Autodesk Inventor
type: item
description: Penelitian ini bertujuan untuk megetahuai tingkat kekuatan dan kenyamanan pada Upper Arm standart, ketika mendapatkan beban dan guncangan, maka analisis pegujian pembebanan berdasarkan dimensi kendaraan, berat kosong dan berat kotor kendaraan. Dalam melakukan analisa dan simulasi penulis menggunakan metode numerik yang dikenal dengan Finite Element Analysis (FEA) atau bisa juga disebut dengan metode elemen hingga. Dalam mendukung metode elemen hingga, serta mempermudah analisis dan mendapatkan hasil yang lebih akurat pada analisis lengan-lengan (arm) ini menggunakan software autodesk invertor karena mudah untuk mendesain dan menganalisis karakteristik upper arm. Dari hasil simulasi, Upper Arm dengan material baja paduan A812, yang memiliki nilai tegangan von Mises maksimum sebesar 0,0501307 MPa, perpindahan sebesar 0,0000960669 mm dan faktor keamanan sebesar 12 ul. Sedangkan pada material baja karbon A284, yang memiliki nilai tegangan von Mises maksimum sebesar 0,0501812 MPa, perpindahan arah vektor Y sebesar 0,000109716 mm dan faktor keamanan sebesar 15.
creator: Syaukaty Yasinta
creator: Mascuk Susilo
creator: Sigit Arrohman
creator: Imam Mahfud Hanafi
creator: Muhammad Luqman Saiful Fikri
creator: Bambang Surono
creator: Mafruddin Mafruddin
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4513

Effect of Current Variation on the Mechanical Properties and Microstructure of GTAW-Welded SS400 Steel
type: item
description: Gas Tungsten Arc Welding (GTAW) or Tungsten Inert Gas (TIG) Welding employs a tungsten electrode and argon shielding gas to protect the molten metal from atmospheric contamination, resulting in strong and permanent joints. SS400 steel, widely used due to its favorable mechanical properties, can be welded using this method. However, weld quality is strongly influenced by variations in welding current. Too low a current leads to shallow penetration, while excessive current may cause defects and microstructural damage. This study aims to analyze the effect of GTAW current variation on the tensile strength, hardness, and microstructure of SS400 steel with different thicknesses (1.2 mm, 5 mm, and 6 mm). A total of 27 specimens were tested using an experimental method. Tensile strength was evaluated with a universal testing machine, hardness was measured using the Rockwell test, and microstructure was analyzed through metallography. The results show that hardness and tensile strength values are affected by the combination of welding current and plate thickness. Lower current increases hardness, while higher current reduces it. Yield strength and tensile strength decrease with increasing current and thickness due to higher heat input, while elongation varies depending on plate conditions. The microstructure reveals that martensite forms only in medium-thickness plates (5 mm), whereas thin and thick plates are dominated by ferrite and pearlite with grain growth at higher currents.
creator: Hasan Hasan
creator: Muchammad Chusnan Aprianto
creator: Johan Maulana
creator: Epa Rosidah Apipah
creator: Ghany Heryana
creator: Amir Amir
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4588

Pengaruh diameter dan sudut sudu turbin impuls sederhana menggunakan elbow PVC
type: item
description: Upaya mitigasi dan adaptasi di sektor energi dilakukan dengan kebijakan pengembangan energi bersih (green energi), melakukan transformasi bauran energi baru terbarukan sebesar 23% di tahun 2025, potensi energi air di wilayah Kabupaten Kupang di wilayah pedesaan yang belum tersentuh jaringan listrik dapat dikembangkan untuk PLTMH. Kendala umum adalah investasi yang cukup besar pada tahap pengadaan peralatan dan konstruksi. Desa terpencil dengan kemampuan terbatas kesulitan untuk memanfaatkan potensi air yang tersedia. Model turbin impuls konstruksi sudu elbow pvc dapat menjadi alternatif, namun perlu penelitian mengenai efisiensi yang dihasilkan. Penelitian ini untuk mengetahui pengaruh variasi diameter dan sudut kemiringan sudu turbin konstruksi elbow pvc terhadap efisiensi kerja turbin. Telah dilakukan eksperimen skala laboratorium menggunakan model turbin sederhana pada variasi diameter (22mm,26mm,32mm) dan sudut sudu (-15o,0o,+15o), debit dan tekanan pompa sebagai pengganti head sumber. Hasil pengujian memperlihatkan perubahan diameter dan sudut penempatan sudu turbin mempengaruhi putaran poros turbin yang dihasilkan, demikian juga hasil pengujian simulasi pembebanan pada poros turbin. Hasil pengujian menunjukan bahwa penggunaan elbow PVC Ø 1 inchi ( 32 mm) menghasilkan putaran yang lebih tinggi, sedangkan penggunaan elbow PVC ½ inchi dengan sudut 15olebih efisien dalam menghasilkan putaran maupun torsi pada poros turbin. Upaya mitigasi dan adaptasi di sektor energi dilakukan dengan kebijakan pengembangan energi bersih (green energi), melakukan transformasi bauran energi baru terbarukan sebesar 23% di tahun 2025, potensi energi air di wilayah Kabupaten Kupang di wilayah pedesaan yang belum tersentuh jaringan listrik dapat dikembangkan untuk PLTMH. Kendala umum adalah investasi yang cukup besar pada tahap pengadaan peralatan dan konstruksi. Desa terpencil dengan kemampuan terbatas kesulitan untuk memanfaatkan potensi air yang tersedia. Model turbin impuls konst…
creator: Alexius Leonardo Johanis
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4482

Reverese Engineering Burnishing Tool Untuk Proses Finishing Kekasaran Permukaan Pada Mesin Milling Konvensional
type: item
description: The advancement of the manufacturing industry demands improved surface quality for components produced by conventional milling processes. Typically, grinding is required to achieve surface roughness levels up to N4; however, this process involves significant machine investment and high operational costs. This study presents the design of a burnishing tool as a finishing aid that can be mounted directly onto a conventional milling machine spindle without the need for additional equipment. The tool was developed using the systematic design methodology VDI 2222 and a manufacturing plan involving turning, milling, and grinding of the tool components. Test specimens made of ST37 and S45C steel were initially milled to a surface roughness (Ra) of 2.6–5.7 µm, then burnished using a feed depth of 0.5 mm and spring deflection ranging from 0 to 1.5 mm. The experimental results showed a significant reduction in Ra, reaching as low as 0.16 µm for ST37 and 0.17 µm for S45C. These findings demonstrate the effectiveness of the burnishing tool in enhancing surface finish efficiently and economically using conventional milling machines.
creator: Thopo Antonius Adi Soetopo
creator: Mohammad Yazid Diratama
creator: Andri Suhendri .
creator: Ahmad Fauzi .
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4605

Studi Performa dan Analisis Kerusakan Sistem Hidrolik Excavator Mini Excavator Zhugimada
type: item
description: The hydraulic system plays a vital role in supporting excavator performance by transmitting power through pressurized fluid to actuate the boom, arm, and bucket. However, fluid leakage can significantly reduce operational efficiency and performance. This study aims to analyze the hydraulic system performance of the Zhugimada mini excavator trainer unit before and after repair. Tests were conducted on three main parameters: silinder drift, silinder speed, and silinder pressure, under three load conditions zero capacity, struck capacity, and heaped capacity. The results show that leakage was caused by damage to the fittings on the arm and bucket silinders, the seal on the boom silinder, the valve connecting the tank and pump, and an electric motor speed exceeding the standard (1,491 rpm). The leakage impact was indicated by a decrease in silinder speed 1.41% for the boom, 1.34% for the arm, and 0.51% for the bucket and a 16.28% pressure drop in the boom under no-load conditions. After the repair, system performance improved significantly, with boom speed increasing by 0.92%–2.04% and arm speed by 0.82%–1.77%. The repair effectively addressed both internal and external leakage and improved the overall efficiency of the hydraulic system.
creator: Muhammad Hisyam Ar-Rizqi
creator: Braam Delfian Prihadianto
creator: Sugiyanto Sugiyanto
creator: Nyayu Aisyah
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4608

Characteristics of Briquettes Produced from Rubber Seed Shell and Palm Kernel Shell Using Tapioca Flour as Binder
type: item
description: Indonesia faces challenges in managing renewable energy as an alternative to fossil fuels. This study aims to compare commercially available briquettes with experimental briquettes produced from a mixture of rubber seed shells and palm shells using tapioca flour as a binder. The raw material composition variations between rubber seed shells and palm shells used were 80:20, 50:50, and 20:80, with 10% tapioca flour binder, and dried at a temperature of 100°C for 3 hours. The purpose of this research is to compare the produced briquettes with those already marketed. Based on the experiments and tests carried out, the results show that the 20:80 variation produced briquettes most comparable to the market samples, with a density of 0.7438 g/cm³, moisture content of 3.43%, calorific value of 6849.46 cal/gram, combustion rate of 0.1117 g/minute, and a drop test value of 4.7672%.
creator: Farid Jayadi
creator: Devia Gahana Cindi Alfian
creator: Muhammad Hasbi Pratama
creator: Fajar Perdana Nurullah
creator: Dicky Januarizky Silitonga
creator: Lathifa Putri Afisna
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4607

Rancang Bangun Mesin Injection Molding Tipe Vertikal Untuk Pembuatan Produk Tatakan Gelas Dari Limbah Plastik PET
type: item
description: Limbah plastik, khususnya Polyethylene Terephthalate (PET), merupakan salah satu penyumbang terbesar pencemaran lingkungan karena sulit terurai secara alami. Upaya pengolahan limbah plastik melalui teknologi tepat guna menjadi sangat penting untuk mengurangi dampak negatif sekaligus memberikan nilai tambah. Penelitian ini bertujuan merancang dan membangun mesin pencacah plastik yang terintegrasi dengan sistem injection molding tipe vertikal guna menghasilkan produk fungsional berupa tatakan gelas dari limbah PET. Metode penelitian meliputi identifikasi masalah, studi literatur, perancangan desain menggunakan SolidWorks 2021, simulasi struktural untuk mengetahui kekuatan dan faktor keamanan, proses fabrikasi, serta pengujian kinerja mesin. Hasil simulasi menunjukkan bahwa rangka mesin memiliki nilai safety factor sebesar 24 dengan displacement maksimum hanya 0,102 mm, sehingga aman digunakan. Pada tahap pengujian, proses pencacahan mampu menghasilkan serpihan plastik PET berukuran 5–10 mm dengan bentuk relatif seragam, sesuai untuk tahap peleburan berikutnya. Selanjutnya, mesin dapat beroperasi efektif pada suhu barel 290°– 320°C dan suhu cetakan 100°–125°C dengan waktu pemanasan rata-rata 21–23 menit serta waktu suhu tahan molding sekitar 2 menit. Produk tatakan gelas yang dihasilkan sesuai dengan bentuk cetakan / molding. Hasil produk tatakan gelas yang paling baik dihasilkan oleh variasi barrel injector 320°C dan suhu molding 125°C.
creator: Leo Van Gunawan
creator: Muhamad Ghozali
creator: Ferry Sugara
creator: Riki Factur Rohman
creator: Excel Putra Pangestu
creator: Syarif Rohidayat
rights: Copyright (c) 2026 Turbo : Jurnal Program Studi Teknik Mesin
date: 2025-12-31
publication date: 2025-12-31
volume: 14
number: 2
doi: 10.24127/trb.v14i2.4593