Investigation of Using Nonazeotropic Refrigerant Mixture as the Replacement for R12
نویسندگان
چکیده
This paper investigates the effects of nonazeotropic refrigerant mixtures (NARMs) as replacement of CFCs. The thermodynamic propert1es of NARM R22/R142b which is harmless to ozone layer are analyzed. The tests about water-to-water heat pump and dual-evaporator refrigerator-freezer using R22/R142b as alternative to R12 are introduced. The test results show R22/Rl42b is of energy conserving effects as strict counterflow heat exchangers are used. The refrigerator~freezer system is adjusted in the tests so as to make the construction of refrigerator-freezer to match well with thermodynamic characteristic of R22/R142b. The energy consumption has been decreased to a certain extent. The analysis shows using NARMs as short or mid-term alternatives to CFCs would be a better choice.
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