Analysis of the Operating Characteristics of a Low Evaporation Temperature R404A Refrigeration System
暂无分享，去创建一个
A refrigeration system which was originally designed using R502 as refrigerant was rebuilt to adapt the special requirements of R404A. The experiments, both for R502 and R404A, on this system were done and some parameters such as evaporating temperature, condensing temperature, discharge temperature, compressor input power and so on were measured under different working conditions. Then the operating characteristics and the performances were compared between R404A and R502. The influences of R404A as refrigerant on refrigeration system were further analyzed. Some recommendations for existing R502 refrigeration systems to use R404A as refrigerants were put forward in the end of this paper.
[1] C. A. Infante Ferreira,et al. R404A condensing under forced flow conditions inside smooth, microfin and cross-hatched horizontal tubes , 2003 .
[2] C. Gabrielii,et al. Replacement of R22 in tube-and-shell condensers: experiments and simulations , 1997 .
[3] S. L. Braga,et al. Critical flow of refrigerants through adiabatic capillary tubes: Experimental study of zeotropic mixtures R-407a and R-404a , 2000 .
[4] Sergio Leal Braga,et al. A visual study of R-404A/oil flow through adiabatic capillary tubes , 2002 .