| 摘要 |
PURPOSE:To provide an operating medium for heat pump contg. specified compds. as essential constituents, which improves operating efficiency of the heat pump as compared with those employing conventional heating media and markedly increases heating and cooling capacity per suction air flow of a compressor. CONSTITUTION:The operating medium contains dichlorotetrafluoroethane, monochlorodifluoromethane and monochloropentafluoroethane as essential constituents. It improves heating capacity and operating efficiency of a heat pump without excessive increase of pressure of condensation. It also increases heating and cooling capacity per suction air flow of a compressor to a marked extent and is of great practical use. |
