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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Vice Dean of Graduate School
其他任职：建筑能源研究所所长
性别：男
毕业院校：哈尔滨建筑大学
学位：博士
所在单位：土木工程系
学科：供热、供燃气、通风及空调工程. 控制理论与控制工程. 建筑学
办公地点：大连市凌工路2号大连理工大学建设工程学院3号楼601室
联系方式：0411-84706260
电子邮箱：zjldlut@dlut.edu.cn
Thermodynamic cycle performances analysis of high temperature refrigerants in a multi-stage heat pump system
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论文类型：会议论文
发表时间：2010-06-26
收录刊物：EI、Scopus
页面范围：1515-1520
摘要：Based on the select criteria of the refrigerants for high temperature heat pump system, six selected refrigerants, R245fa, R245ca, R236ea, R123, R600 and R134a are used as working fluid of the high temperature heat pump. Three kinds of multi-stage refrigeration circulations, i.e. two-stage compression cycle with one subcooler, two-stage compression cycle with one heat regenerator and one flash tank and three-stage compression cycle with a heat regenerator and two flash tanks, are designed to investigate the multi-stage thermodynamic cycle performances of these refrigerants. The results show that the COP of different thermodynamic cycle increases with increasing number of compression cycle stage. The comprehensive performances of R245fa and R245ca are better than that of other refrigerants in multi-stage compression cycle, which have a good application prospects. And the comprehensive performances of R236ea and R134a are poor compared with other refrigerants. ?2010 IEEE.