摘要
把R245fa和R134a、R11、R1336mzz(Z)和R1233zd(E)四种工质的热物理性质对比,在相同的工况下理论分析了五种工质在中高温热泵中的COP、压缩机排气温度、单位容积制热量、压缩比等性能参数。结果表明,在高温热泵70~100℃的运行区间内,R245fa冷凝压力较低、制热COP高、排气温度相对较低等特性,具有良好的循环性能。R245fa拥有应用于更高冷凝温度工况下的潜质,为今后更为深入的研究提供借鉴。
By comparing the thermophysical properties of R245 fa,R134 a,R11,R1336 mzz(Z)and R1233 zd(E)working fluids,the COP and compressor discharge temperature of five working fluids in high temperature heat pump were analyzed under the same working conditions,performance parameters such as unit volume heating capacity,compression ratio.The results show that R245 fa has good cycle performance in the operating range of high temperature heat pump 70~100℃,R245 fa low condensing pressure,high heating COP and relatively low exhaust gas temperature.The R245 fa has a latent value for use in higher condensing temperatures and is subject to further research in the future.
作者
杨文娟
张华
YANG Wen-juan;ZHANG Hua(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《广州化学》
CAS
2020年第1期55-59,共5页
Guangzhou Chemistry
基金
国家自然科学基金青年项目(51606126).
关键词
高温热泵
R245FA
循环性能
理论分析
high temperature heat pump
R245fa
cycle performance
theoretical analysis
作者简介
杨文娟(1994~),女,硕士研究生。主要从事制冷空调技术与节能的研究。ywjusst@163.com;通讯作者:张华(1966~),男,教授。主要从事制冷低温过程与系统的研究。
