%0 Journal Article %T Experimental investigation of a liquid turbine in a full performance test rig %A Haisheng Chen %A Hongyang Li %A Wen Li %A Xuehui Zhang %A Yangli Zhu %A Zhitao Zuo %J Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy %@ 2041-2967 %D 2019 %R 10.1177/0957650918785793 %X In traditional industrial systems, a liquid expander can be used as a substitute for a throttling valve to improve system efficiency and economy. In this paper, the research and development of liquid expanders was reviewed. A set of experimental procedures were presented and an experimental test rig was built to examine the performance of a liquid turbine, which is a model machine of the liquid expander used in the supercritical compressed air energy storage system. At the rated condition, the flow rate of the liquid turbine is 60.7£¿kg/s, the differential pressure is 0.662£¿MPa, the output power is 30.44£¿kW, and the efficiency is 75.16%. The experimental results indicate successful construction of the test rig, which fully demonstrates the advantages of a semi-open and semi-closed system. The experimental results of the liquid turbine are of practical value for verification and development of the liquid expander in supercritical compressed air energy storage system %K Liquid turbine %K full performance curve %K test rig %K Joule¨CThomson valves %U https://journals.sagepub.com/doi/full/10.1177/0957650918785793