Performance Simulation of a Twin-screw Expander Using R513A as Working Fluid in Organic Rankine Cycle System

被引：0
|
作者：
Zhang, Zhiping [1 ]
Wang, Ying [2 ]
Wu, Xiaokun [1 ]
Pan, Xi [2 ]
Xing, Ziwen [2 ]
机构：
[1] Gree Elect Appliances INC, Sate Key Lab Air Conditioning Equipment & Syst En, Zhuhai, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian, Peoples R China
来源：
2020 IEEE 3RD INTERNATIONAL CONFERENCE ON RENEWABLE ENERGY AND POWER ENGINEERING (REPE) | 2020年
关键词：
Twin-screw expander; organic Ranking cycle; R513A; R134a; ORC; REPLACEMENT; R134A;
D O I：
10.1109/repe50851.2020.9253810
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The organic Rankine cycle (ORC) system is an efficient technology to make energy recovery from low grade thermal sources. The performance of expander has a great influence on the efficiency of the ORC system. In this paper, a thermodynamic model of working process in twin-screw expander is established, in which suction pressure loss, leakage and heat transfer are taken into account. Two working fluids, R134a and R513A, are used as working fluids. Suction pressure loss, mass flow rate, output power, filling factor and isentropic efficiency are simulated and p-V diagrams are presented. The results show that R513A performs well in twin-screw expander as a low global warming potential (GWP) alternative refrigerant to R134a.
引用
收藏
页码：18 / 25
页数：8
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