集美大学学报（自然科学版）2018，Vol.23Issue(2)：145-149,5.
R134 a和R407 c对热泵空调系统性能的影响
Performance Research of Heat Pump System Employing R134a and R407c
摘要
Abstract
For evaluation of the performance of a heat pump air conditioning system,R134a and R407c were respectively employed as refrigerants and charged into the system.Tests were conducted in the enthalpy differ-ence laboratory in terms of the exhaust temperature,refrigerating capacity,heating capacity,input power and the COP,which were determined within temperature range -25~15℃ and 30~70℃ respectively for evapo-ration and condensation. Results show that the refrigerating and heating capacities of the system closely corre-lated with the fluctuation of the evaporation temperature,and the condensation temperature had a great effect on the input power of the compressor.Results also reveal that there is 27.6% increment in the mean COP(coeffi-cient of performance) by R407c when the system operates in heating mode in winter in comparing with 4.3%increment by R134a when the system is in refrigeration mode in summer.It suggests that R407c is more suit-able for an air conditioning system running at a lower temperature,and selection of R134a was more reasonable for an air conditioning system running at a higher temperature.关键词
制冷剂/排气温度/制冷量/制热量Key words
refrigeraling fluid/exhaust temperature/refrigerating capacity/heating capacity分类
能源科技引用本文复制引用
陈言桂,施灵,方璋..R134 a和R407 c对热泵空调系统性能的影响[J].集美大学学报（自然科学版）,2018,23(2):145-149,5.基金项目
福建省高校青年自然基金重点项目(JZ160447) （JZ160447）
