R1336mzz(Z)及其二元混合工质高温热泵系统的性能研究  

Performance Investigation on the High Temperature Heat Pump System Using R1336Mzz(Z)and Its Binary Mixture

作　　者：张淞屹 王甜 杨宾[1] 于晓慧 ZHANG Songyi;WANG Tian;YANG Bin;YU Xiaohui(School of Energy and Environmental Engineering,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河北工业大学能源与环境工程学院,天津300401

出　　处：《建筑科学》2024年第12期173-179,共7页Building Science

基　　金：国家重点研发计划“化工行业低碳零碳关键技术和装备研发”(NO.2022YFE0208300)。

摘　　要：热泵技术是实现能量转化再利用的重要途径和方法,制热温度大于100℃的高温热泵具有明确且重要的应用背景和巨大市场潜力。本文设计了新型工质R1336mzz(Z)/R152a并搭建高温热泵实验系统,测试并对比了高温工况下(制热温度90~110℃)R1336mzz(Z)及其二元混合工质R1336mzz(Z)/R152a在高温热泵系统中的性能。结果表明,高温工况下,R1336mzz(Z)/R152a的吸排气压力比R1336mzz(Z)高了81.56%和49.60%,但是其排气温度低了约3.8℃。高吸排气压力导致R1336mzz(Z)/R152a的高耗功。同R1336mzz(Z)相比,其耗功高了57.40%,但制热量高了约62.55%。R1336mzz(Z)/R152a的COP为5.10~4.16,比R1336mzz(Z)增加了约3.28%,单位容积制热量为1639.56~1964.82 kJ/m^(3)。因此R1336mzz(Z)/R152a在制热温度90~110℃时,其具有合适的吸排气压力、排气温度和高的COP和单位容积制热量,有较好的应用潜力。Heat pump technology is an important way to realize energy conversion and reuse.High-temperature heat pumps with heating temperatures above 100℃boast a clear and significant application background as well as enormous market potential.In this paper,a high-temperature heat pump experimental platform was built and the novel refrigerant R1336mzz(Z)/R152a was designed.The performances of R1336mzz(Z)and R1336mzz(Z)/R152a were compared and evaluated at a heating temperature of 90~110℃.Theresultsshowedthatthesuction and discharge pressures of R1336mzz(Z)/R152a were 81.56%and 49.60%higher than those of R1336mzz(Z)in high-temperature operation,but its discharge temperature was lower by about 3.8.The high suction and discharge pressures resulted in high power consumption of the R1336mzz(Z)/R152a compressor.Compared to R1336mzz(Z),the power consumption of R1336mzz(Z)/R152a was 57.40%higher,but its heating capacity was about 62.55%higher.The COP of R1336mzz(Z)/R152a ranged from 5.10 to 4.16,which was about 3.28%more than that of R1336mzz(Z),and its unit volumetric heating capacity was 1639.56~1964.82 kJ/m^(3).Therefore,R1336mzz(Z)/R152a has great potential for application at a heating temperature of 90~110℃,because of its suitable suction and discharge pressures,discharge temperature,high COP,and unit volumetric heating capacity.

关 键 词：高温热泵 高温工质 循环性能 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]