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양희천(Hei-Cheon Yang),설승규(Seung-Kyu Seol),성용록(Yong-Lok Sung),박현성(Hyun-Sung Park),박형권(Hyung-Kwon Park) 대한기계학회 2020 대한기계학회 춘추학술대회 Vol.2020 No.12
The optimum mixing tube length is recognized to give the maximum entrainment rate of suction fluid. Also, the diffuser ability with optimum design in a two-phase ejector to diffuse efficiently the high velocity mixture stream is of great importance to the overall momentum recovery of the ejector. The aim of this study is to investigate the mass ratio and lifting pressure characteristics with design parameters of two-phase ejector. The mixing tube length ratio and the area ratio of diffuser outlet to mixing tube are used to investigate the influence of geometry on the entrainment and pressure lifting characteristics. It was found that as the mixing tube length ratio increased or diffuser exit area ratio decreased the mass ratio and lifting pressure ratio increased and then decreased slightly or remained constant.