Compared with conventional vapour compression system
the refrigerator using Free-piston Stirling cooler (FPSC) based on reverse Stirling cycle has the advantages of high efficiency
green refrigerant
large range of cooling temperature
low starting current and easy capacity modulation operation. It's also energy saving and environment protecting. The advantages of using it in small capacity and low temperature refrigerators are analyzed according to the characteristics of FPSC. The research overview of Stirling refrigeration system in foreign countries is introduced
and then the prospects of developing Stirling refrigerator technology in our country are expected.