Effects of IGVF on the performance and internal energy loss mechanisms of a two-stage booster pump under cryogenic liquid CO2 condition

Bing Qi, Xueping Yuan, Wensheng Ma, Yibin Li, Xiaozhuang Chen, Youchao Yang, Key Laboratory of Advanced Pumps, Valves and Fluid Control System of the Ministry of Education, Lanzhou University of Technology, National Enterprise Technology Center, Chongqing Pump Industry Co

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy

Published online on June 02, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Ahead of Print.
This study investigates the impact of the inlet gas volume fraction (IGVF) on the hydraulic performance and internal loss characteristics of a two-stage cryogenic liquid CO2booster pump. The Gas–liquid two-phase flow is simulated using an Euler–Euler ...