Energy impact evaluation of different low-GWP alternatives to replace R134a in a beverage cooler. Experimental analysis and optimization for the pure refrigerants R152a, R1234yf, R290, R1270, R600a and R744

•Six low-GWP alternatives of R134a have been experimentally analysed and compared.•A beverage cooler was used as test bench analysing its energy consumption.•Hydrocarbons R290, R1270 and R600a introduce energy savings of 27.5%, 26.3% and 1.2%, respectively.•HFC R152a and the R744, allows reducing up...

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