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.
作者
张淞屹
王甜
杨宾
于晓慧
ZHANG Songyi;WANG Tian;YANG Bin;YU Xiaohui(School of Energy and Environmental Engineering,Hebei University of Technology,Tianjin 300401,China)
出处
《建筑科学》
CSCD
北大核心
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)。
关键词
高温热泵
高温工质
循环性能
high-temperature heat pump
high-temperature refrigerant
cycling performance
作者简介
张淞屹(1999-),男,在读硕士研究生[联系方式]zhangsongyi2021@163.com;通讯作者:于晓慧(1986-),女,博士,副教授。
