Study on the Effect of Gas-Liquid Two-Phase Medium on PAT Performance

Shi Fengxia; Yang Junhu; Wang Xiaohui; Miao Senchun; Guo Rui

doi:10.5293/IJFMS.2021.14.3.247

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자료유형: 학술저널

저자정보: Shi Fengxia (Lanzhou University of Technology) Yang Junhu (Lanzhou University of Technology) Wang Xiaohui (Lanzhou University of Technology) Miao Senchun (Lanzhou University of Technology) Guo Rui (Lanzhou University of Technology)

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.14 No.3

발행연도: 2021.9

수록면: 247 - 257 (11page)

DOI: 10.5293/IJFMS.2021.14.3.247

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A pump as turbine is optimized firstly, then the distribution of gas, the vortex structure evolution, the force characteristic and energy conversion characteristic are analyzed under pure liquid and gas-liquid two-phase conditions. The result manifests that because of the existence of gas, the pressure gradient decreased and the normal flow of high-pressure fluid in the turbine is inhibited by gas. The radial force vector, the time domain value and the main frequency amplitude are all smaller than that of pure liquid condition, and hydraulic vibration is more likely to be caused by the flow uncertainty of gas. The energy conversion performance of the unit is worse.

#Pump as turbine #Vortex structure #Force characteristic #Energy conversion characteristic #Gas-liquid two-phase flow

참고문헌 (27)

참고문헌 신청

Ying M / 2009 / ”Flow factor prediction of centrifugal hydraulic turbine for sea water reverse osmosis(SWRO) / International Journal of Fluid Machinery and Systems 3(4):369~378

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Diao WS / 2008 / Feasibility study of hydraulic turbine application in high pressure hydrogenation unit / Refinery technology and engineering, 38(7):33~35

Agarwal T / 2012 / Review of pump as turbine (PAT) for micro-hydropower / International Journal of Emerging Technology and Advanced Engineering 2(11):163~169

Mauro V / 2018 / Development of a physics-based model to predict the performance of pumps as turbines / Applied Energy 231(12):343~354

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