点击查看更多关于中国制冷学会　》》

昝成 史琳

(清华大学热科学与动力工程教育部重点实验室 北京 100084)

制冷学报 .-2008，29（4）.－8～12

    摘 要：针对一种臭氧层破坏潜能(ODP)为零的非共沸中高温热泵混合工质HTR04，研究了其实际应用中的三个关键问题：R134a压缩机直接充灌HTR04的匹配性问题；HTR04的组分迁移问题；温度滑移特性利用问题。结果表明：对于一个配备R134a压缩机的HTR04热泵机组，能够稳定且高效地提供80℃的热水；HTR04组分迁移导致的系统性能变化在工程允许范围之内；通过HTR04滑移温度与冷凝器水侧温差的最优匹配，可提高热泵系统性能。研究可为绿色环保中高温热泵工质HTR04的实际应用提供理论基础和技术支持。

    关键词：工程热物理；混合工质；组分迁移；滑移匹配；中高温热泵，ODP为零

Study on performance matching and zeotropic characteristics of non-ozone depleting refrigerant mixture for heat pump
ZAN Cheng, SHI L
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084,China

Abstract A refrigerant mixture with 0 ODP for moderately high temperature heat pumps, named HTR04 (High Temperature Refrigerant 04), has been developed. Three key problems for the application of HTR04 were investigated, i.e., its direct replacement use in a R134a compressor, its composition shift and temperature glide. The results indicate that the heat pump with an original compressor could provide hot water with about 80℃ by filling HTR04 to replace R134a. The changes of the system performance caused by HTR04 composition shift could be accepted in use. The coefficient of performance could be improved through optimal matching of the glide temperature and the temperature difference of water in the condenser.12Refs. In Chinese.

Keywords Engineering thermophysics; Refrigerant mixture; Fractionation; Glide-matching; Moderately high temperature heat pump; Non-ozone depletion