二氧化碳膨胀机研究新进展  

DEVELOPMENTS IN RESEARCHES OF CARBON DIOXIDE EXPANDER

作　　者：管海清[1] 马一太[1] 李敏霞[1] 查世彤[1] 

机构地区：[1]天津大学热能研究所

出　　处：《制冷与空调》2003年第6期7-10,共4页Refrigeration and Air-Conditioning

摘　　要：在综述国内外CO2 膨胀机的研究现状 ,分析现有膨胀机技术特点的基础上 ,提出了CO2 膨胀机研究中存在的问题。指出在CO2 膨胀机的研究中 ,应该充分考虑CO2 跨临界循环膨胀做功的特点 ,尽量减少其摩擦、泄漏及余隙容积损失 ,设计更为合理的进出口控制 ,促使CO2The developments in researches of CO 2 expander are introduced. Based on analysis of techniques of existing CO 2 expander, some difficulties in researches of CO 2 expander are presented. Such measures should be taken to improve the efficiency of CO 2 expander that can reduce the loss of friction, leakage and clearance volume, more reasonable control of inlet and outlet should also be introduced.

关 键 词：二氧化碳膨胀机 跨临界循环 制冷剂 CO2 热力性质 压缩机 

分 类 号：TB65[一般工业技术—制冷工程]