Environment-friendly and energy-saving refrigerator refrigerant

Abstract

The invention discloses a high efficient refrigerator refrigerant with a low global warming potential (GWP) value. The refrigerant comprises the following components in percentage by weight: 2 to 15% of 1,1,1,2-tetrafluoroethane (CF3CH2F, R134a), 0 to 80% of fluoroethane (C2H5F, R161), and 5 to 98% of dimethyl ether (C2H6O, DME). The ozone depression potential (ODP) of the mixed refrigerant is 0, the GWP value is less than 120, the environmental performance is excellent, moreover the unit-quality COP (coefficient of performance) of the refrigerant is better than that of R12 (dichlorodifluoromethane, namely freon); and at the same time, the unit-volume refrigerating capacity of the refrigerant is equivalent to R12, the slippage temperature is small, the evaporation and condensing pressures are approximate to those of R12, the refrigerant has the advantages of low displacement cost, energy saving, and environment-friendliness, and thus the refrigerant can be used to displace R12 in the long term.

Description

technical field [0001] The invention relates to an environment-friendly and energy-saving refrigerator refrigerant, in particular to a refrigerant mixture that does not destroy the atmospheric ozone layer (ODP is 0), has extremely low greenhouse effect and has excellent thermodynamic performance in a household refrigerator system. Background technique [0002] Refrigerant is the carrier of energy conversion and utilization in the refrigeration system, and its thermodynamic performance plays a crucial role in the energy utilization efficiency of the system. In recent years, the two major environmental problems of ozone layer depletion and greenhouse effect have aroused global attention. Dichlorodifluoromethane (CCl 2 f 2 , R12), as a refrigerant that has been used in refrigerator refrigeration systems for a long time and has high refrigeration efficiency, has been banned from production and use. [0003] The new environment-friendly and energy-saving working fluid require...

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Problems solved by technology

[0005] The refrigerant mixtures proposed in the existing literature often have disadvantages such as high GWP value, or flammability, or small volumetric cooling capacity, or large temperature glide, so the development of refrigerants with higher refrigeration performance and better compatibility with Compatibility with existing systems and refrigerator refrigerants with better environmental performance are particularly urgent

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