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
张淞屹 1王甜 1杨宾 1于晓慧1
作者信息
- 1. 河北工业大学能源与环境工程学院,天津 300401
- 折叠
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 1 639.56～1 964.82 kJ/m3.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.
Abstract
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 ℃.The results showed that the suction 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/m3.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Key words
high-temperature heat pump/high-temperature refrigerant/cycling performance引用本文复制引用
出版年
2024
NETL
NSTL
万方数据