Review article

The use of heat pump installations in heating, ventilation, air conditioning and hot water supply systems of buildings for various purposes is efficient for heat supply purposes when using renewable energy sources and secondary energy resources. For the preliminary analysis of the efficiency of using heat pumps, there was obtained a generalized criterion dependence of the actual energy conversion coefficient on the Clausius criterion characterizing the properties of refrigerants. To obtain the dependence, the single stage heat pump was tested on R134a refrigerant. Comparison analysis with well known data from special literature was made. The relationship can be applied to modern refrigerants R407C, R404A, R410A.