MENG Zhaofeng, ZHANG Hua, QIN Yanbin, et al. Experimental study on R1234yf/R134a mixture as alternative to R134a in automobile air conditioner[J]. CIESC Journal, 2018, (6): 2396-2403.
MENG Zhaofeng, ZHANG Hua, QIN Yanbin, et al. Experimental study on R1234yf/R134a mixture as alternative to R134a in automobile air conditioner[J]. CIESC Journal, 2018, (6): 2396-2403.DOI: 10.11949/j.issn.0438-1157.20171285.
was studied as alternative to R134a in automotive air conditioning systems using micro-channel heat exchangers. The results show that the cooling capacity of R1234yf/R134a and R134a is similar. The COP of R1234yf/R134a is lower than that of R134a by 4%-9%. The average compressor discharge temperature of R1234yf/R134a is up to 10℃ lower than that of R134a. By adding 11% (mass) R134a
R1234yf/R134a can be made non-flammable. In addition
R1234yf/R134a has no ozone depletion potential
with a global warming potential of less than 150
thus meeting the requirement of European mobile air-conditioner directives. R1234yf/R134a can be used as an environment-friendly replacement for R134a in automotive air conditioning systems