一种高温热泵工质的理论与试验性能  

Theoretical and Experimental Cycle Performances of Working Fluid for High Temperature Heat Pumps

作　　者：马利敏[1] 王怀信[2] 王继霄[2] 

机构地区：[1]中国石油大学机械与储运工程学院(北京),北京102249 [2]天津大学机械工程学院,天津300072

出　　处：《机械工程学报》2010年第12期142-147,共6页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(50476062)

摘　　要：以寻求适宜工作在冷凝温度范围为80～110℃的高温热泵环保工质为目的,对臭氧层破坏势(Ozone deplete potential,ODP)为零的非共沸混合工质M进行循环性能理论和试验研究。理论循环性能分析结果表明,M的单位容积制热量qv和循环性能系数(Coefficient of performance,COP)均优于传统工质CFC114;试验结果表明,M系统的制热量Q和循环性能系数Cop随工况温度的升高而提高。试验中,M的最高平均冷凝温度达到104.5℃,相应热输出温度达到103.0℃,冷凝压力和排气温度分别为1.951MPa和120.8℃,均在安全应用的限制范围内。To select high temperature heat pump working fluids,which are expected to be environmentally friendly and suitable to work at condensing temperatures ranging from 80 to 110℃,theoretical and experimental researches on heat pump cycle performance of a non-azeotropic mixture M with zero ozone deplete potential （ODP） are carried out.The theoretical performance analysis results show that both specific volumetric heating capacity （qv） and coefficient of performance （COP） of M are superior to those of traditional working fluid CFC114.The experimental results show that the heating capacity Q and the COP of M system will improve along with the rise of working temperature.In the experiments,the highest average condensing temperature of M reaches 104.5℃,the corresponding heat output temperature attains 103.0℃,the condensing pressure and discharge temperature are 1.951 MPa and 120.8℃ respectively,and they are all within the limit range for safe application.

关 键 词：高温热泵 工质 理论和试验循环性能 

分 类 号：TB6[一般工业技术—制冷工程]