流体机械2013，Vol.41Issue(2)：66-70,5.DOI:10.3969/j.issn.1005-0329.2013.02.014
R410a和R22平行流冷凝器变工况特性的比较
Characteristic Comparison of Parallel-flow Type Condenser Using R410a and R22
摘要
Abstract
The performance of parallel-flow type condenser using R22 and alternative refrigerant R410a respectively under different outdoor condition was compared. A mathematic model of steady distributed parameters is established to compare the performance of heat transfer and flow of these two refrigerants, also introduce specific charge to compare the refrigerant charge reduction of these two ones. The simulation results show that the variation trends among the heat capacity, refrigerant side' s pressure drop and refrigerant mass of R410a and R22 are similar, and R410a gets a higher heat capacity and lower pressure drop than R22. The two's specific charge vary with increasing temperature and mass of inlet air like upwards parabola, and R410a gets a lower value. In conclusion, R410a has similar characteristic under different operating condition with R22, and suitable to alternate R22 applied to air-conditioning system equipped with parallel-flow type condenser. Besides, R410a' s heat transfer performance, flow performance and refrigerant charge reduction are better than R22.关键词
平行流冷凝器/R410a/变工况/充注量/压降/换热系数Key words
parallel-flow type condenser/R410a/different operating condition/refrigerant charge/pressure drop/heat transfer coefficient分类
机械制造引用本文复制引用
唐伟伟,胡益雄,朱德斌..R410a和R22平行流冷凝器变工况特性的比较[J].流体机械,2013,41(2):66-70,5.
