期刊
APPLIED THERMAL ENGINEERING
卷 87, 期 -, 页码 529-537出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2015.05.040
关键词
Organic Rankine cycle; Scroll expander; Output power; Numerical simulation
资金
- ENN-Tongji Institute for Advanced Clean Energy
- National Fundamental Research Program 973 project [2014CB249201]
An Organic Rankine Cycle (ORC) system was built to test the performance of a scroll expander with organic working fluid R123. The output performance of the scroll expander was tested under different conditions with various electric loads and pump capacity. Meanwhile, based on the geometric structure of the scroll expander and using thermodynamic method integrated with force balance analysis, the working process of the scroll expander was simulated. The simulation results were compared with the experimental data. The scroll expander modified from a scroll compressor worked stably in the ORC system. The maximum output power, maximum isentropic efficiency, and maximum rotation speed was 1540 W, 86%, and 2165 r/min respectively in the experiments. The average deviation between the simulation and the experimental results was 18.9%. The numerical model developed in this paper could predict the output performance of the scroll expander and state parameters in expansion chambers. (C) 2015 Elsevier Ltd. All rights reserved.
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