Research Progress on the Application of Novel Low GWP Refrigerants in the Temperature Range from-100℃ to 200℃
A refrigerant is an essential working fluid in a vapor-compression refrigeration cycle.Hydrofluorocarbons are currently used as refrigerants in refrigeration,air-conditioning,and heat pump systems and are potent greenhouse gases.Thus,replacement refrigerants with high thermal performances and low environmental impacts must be identified.This paper presents a comprehensive review of the refrigerants in different vapor-compression cycle applications covering the temperature range from-100℃ to 200℃.The most promising low-GWP alternative is proposed.Moreover,five refrigerants,including HFO-1234yf,HFO-1234ze(E),HFO-1234ze(Z),HCFO-1233zd(E),and HFO-1336mzz(Z),for application in vapor compression equipment,are summarized.
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