Composition containing refrigerant, and refrigeration method using said composition, operating method for refrigeration device, and refrigeration device

A composition comprising a refrigerant and a stabilizer,

• the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf),
• wherein the refrigerant comprises HFO-1132 (E) and HFO-1234yf in such amounts that the sum of HFO-1132 (E) and HFO-1234yf is 99.5 mass % or more,
• wherein HFO-1132 (E) is present in an amount of 31.1 to 39.8 mass %, and HFO-1234yf is present in an amount of 68.9 to 60.2 mass %, based on the total mass of HFO-1132 (E) and HFO-1234yf.

A composition comprising a refrigerant and a stabilizer,

• the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf),
• wherein the refrigerant comprises HFO-1132 (E) and HFO-1234yf in such amounts that the sum of HFO-1132 (E) and HFO-1234yf is 99.5 mass % or more,
• wherein HFO-1132 (E) is present in an amount of 21.0 to 28.4 mass %, and HFO-1234yf is present in an amount of 79.0 to 71.6 mass %, based on the total mass of HFO-1132 (E) and HFO-1234yf.

A composition comprising a refrigerant and a stabilizer,

• the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132 (E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf),
• wherein the refrigerant comprises HFO-1132 (E) and HFO-1234yf in such amounts that the sum of HFO-1132 (E) and HFO-1234yf is 99.7 mass % or more,
• wherein HFO-1132 (E) is present in an amount of 12.1 to 45.0 mass %, and HFO-1234yf is present in an amount of 55.0 to 28.0 mass %, based on the total mass of HFO-1132 (E) and HFO-1234yf.