A Combined Expander-compressor for an Automobile CO2 Air Conditioning System

被引:0
|
作者
No, Young-Jae [1 ]
Kim, Hyun-Jin [2 ]
机构
[1] Incheon Natl Univ, Dept Mech Engn, Grad Sch, Inchon, South Korea
[2] Incheon Natl Univ, Dept Mech Engn, Inchon, South Korea
关键词
Vane Rotary Expander; Vane Rotary Compressor; Compressor Input; CO(2)Air Conditioning Cycle; COP;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
For a CO2 automotive air conditioning system, a combined design of compressor and expander was introduced in order to improve the cycle performance. Both of the compressor and expander are rotary vane types, and designed to share a common shaft in housing. Numerical simulation was carried out to evaluate the merit of the combined unit. At a typical automotive air conditioning operating condition with Tcooler-exit = 46.3oC and Teva = 7.5oC, COP of the system was calculated to be improved by 7.11% by the application of the combined unit. The compressor input was reduced by 4.11% by the expander output. and about 2.72% increase in the cooling capacity was obtained by isentropic expansion in the expander.
引用
收藏
页码:675 / 684
页数:10
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