Performance of Conical Diffuser on Liquid Jet Gas Ejector

Daru Sugati; Indarto Indarto; Purnomo Purnomo; Sutrisno Sutrisno

doi:10.4028/www.scientific.net/AMM.493.145

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 493Performance of Conical Diffuser on Liquid Jet Gas...

Performance of Conical Diffuser on Liquid Jet Gas Ejector

Abstract:

Liquid gas ejector uses liquid as the motive fluid and gas as the entrained fluid. The presence of gas in the liquid reduces the performance of the ejector, especially the diffuser. To observe the effect of entrained gas on the diffuser performance, a series of experiment was conducted.In this research, the motive flow rate was varied from 1.52 to 2.02 l/s and the entrained rate from 0.118 l/s to 0.944 l/s. Its effects on the pressure profile and pressure recovery were observed. If the entrained rate increase, the pressure of the throat upstream, as well as downstream, increase. In the diffuser, longer distance is needed for the pressure to reach its final value. Pressure recovery is mainly affected by void fraction. The higher the void fraction the lower the pressure recovery coefficient

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Periodical:

Applied Mechanics and Materials (Volume 493)

Pages:

145-150

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.493.145

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Online since:

January 2014

Authors:

Daru Sugati, Indarto Indarto, Purnomo Purnomo, Sutrisno Sutrisno

Keywords:

Co-Current Flow, Diffuser, Downward Flow, Ejector, Pressure Recovery, Two-Phase Flow

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References

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