PENGURANGAN INTENSITAS FLUKTUASI TEKANAN PADA PEMBESARAN MENDADAK ALIRAN UDARA – AIR SEARAH HORISONTAL DENGAN PENEMPATAN RING
DOI:
https://doi.org/10.24127/trb.v1i1.87Abstract
This research aims to reduce the effect of pressure fluctuations intensity on the sudden expansion of two phase flow of air - water in the same direction with the horizontal placement of the ring. Measurements done by installing a differential pressure transducer device that is placed on pressure points before and after sudden expansion. Output voltage signal recorded by a digital storage osciloscope. Tests conducted on water discharge 0.000038 m 3 / s; 0.000078 m 3 / s; 0.000116 m 3 / s; 0.000154 m 3 / s; 0.000198 m 3 / s; 0.000244 m 3 / s; 0.000284 m 3 / s and air flow 0.000065 m 3 / s; 0.00013 m 3 / s; 0.000195 m 3 / s; 0.000255 m 3 / s; 0.00032 m 3 / s; 0.000385 m 3 / s; 0.00045 m 3 / s. Results showed that if the total mass flow rate increases the pressure drop increases. Installation of the ring can reduce the pressure fluctuations intensity, the most effective installation of the ring using the ring the same diameter. Flow path is generally slug and plug flow pattern.References
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[II] Sumarli. (2000) Studi Aliran Dua Fase Gas-Cair Melewati Pengecilan Saluran Mendadak Penampang Segi Empat. Tesis S2, Jurusan teknik Mesin Universitas Gadjah Mada.
[III] Sarjito (2002) Studi Aliran Dua-Fase Gas-Cair Melewati Perbesaran Saluran Secara Mendadak dengan Penampang Lingkaran. Tesis S2, Jurusan Teknik Mesin Universitas Gadjah Mada.
[IV] Voutsinas, A., Shakouchi, T., Tsujimoto, K. and Ando, T. (2006) Flow and Control of Vertical Upward Gas-Liquid Two- Phase Flow Through Sudden Contraction Pipe. Jurnal of Fluid Science and Technology, 4, 1000 – 1007
[V] Voutsinas, A., Shakouchi, T., Tsujimoto, K. and Ando, T. (2008) Fluctuating Phenomena and Flow Control of Bubbly Two-Phase Flow Through Sudden Expansion Pipe. Jurnal of Fluid Science and Technology, 4, 84 – 94
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2016-07-28
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