几种中高温热泵工质的理论循环性能  

THE THEORETICAL CYCLE PERFORMANCE OF SOME WORKING FLUIDS FOR MODERATE/HIGH TEMPERATURE HEAT PUMP

作　　者：王怀信[1] 郭涛[1] 王继霄[1] 

机构地区：[1]天津大学机械工程学院热能与制冷工程系,天津300072

出　　处：《太阳能学报》2010年第5期592-597,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(No.50476062)

摘　　要：考虑到不同工质对不同温度区间的适应性,该文将冷凝温度60～140℃的中高温热泵工况进一步划分为60～80℃、80～110℃以及110～140℃3个温度区间,结合改进型的理论循环性能分析评价,分别为每个温度区间筛选出4、6和6种ODP为0,GWP较低的纯质和混合工质。其中,在冷凝温度高于80℃的温度区间内,将筛选出的12种工质与CFC11和CFC114进行了对比。结果表明,这12种工质在各自的温度区间内环境性能和综合循环性能均优于CFC11和CFC114。One of the key issues concerning researches on moderate/high temperature heat pump technology is to look for environmental friendly and cycle performance excellently working fluids. In this paper, the range of working condition in- vestigated is condensing temperature from 60 to 140℃, which is divided into three intervals, i.e. 60-80℃, 80-110℃ and 110-140℃. And 4, 6 and 6 appropriate recommendations were made for each temperature interval, respectively. Hereinto, the 12 out of total 16 working fluids suitable for condensing temperature above 80℃ were compared with CFC11 and CFClld. It is seen that those 12 working fluids present better environmental and cycle performances than CFC11 and CFC114. All the 16 working fluids presented in this paper have the potential to be used as working fluids for moderate/high temperature heat pump.

关 键 词：中高温热泵 工质 工况 理论循环性能 

分 类 号：TB612[一般工业技术—制冷工程]