| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for achieving a refrigeration device which has a small load on a global environment and which has high energy-saving performance.SOLUTION: A refrigeration device R1 includes a refrigerant circuit 12 in which a compressor 14, a condenser 15, a capillary tube 18 as one example of a decompressor and an evaporator 13 are connected in an annular manner. The refrigerant circuit 12 has: a refrigerant heading toward the compressor 14 from the evaporator 13; and a heat exchanger 25 which exchanges heat with the refrigerant in the capillary tube 18 and cools the refrigerant in the capillary tube 18. Also, the refrigerant circuit 12, as the refrigerant, uses a refrigerant composition which contains: a first refrigerant which includes at least one of difluoroethylene (R1132a) and ethane (R170); and a second refrigerant which has a boiling point lower than the boiling point of the first refrigerant, and in which the boiling point in the capillary tube 18 is equal to or greater than the temperature which the refrigerant in the capillary tube 18 reaches by the heat exchange in the heat exchanger 25.SELECTED DRAWING: Figure 2 |
