Potential of non-azeotropic refrigerant mixture as working refrigerant in hot water heat pumps

Industry is only using 20% of the heat subtracted from fossil fuels. The other 80% is released to the surroundings leading to an increase in the global warming effect. In contrast to this, the output of a heat pump is always more than the input, it delivers up to 67% energy savings, has less pollution than conventional heating methods and has a smaller influence on the greenhouse effect because it delivers less carbon dioxide to the atmosphere than other heating methods. The performance of a heat pump is influenced by the properties of the refrigerant that is used. The refrigerant that is mostly used in hot water heat pumps is R22. It supplies hot water at temperatures of 60 to 65 C. In this study it is theoretically shown that a non - azeotropic refrigerant mixture of R22 and R142b has the potential to increase the COP, reduce the pressure ratio of the compressor, maintain chemical stability of refrigerant and lubrication oil, increase heating capacity and display the feature of varying the heating capacity with load. The main aim of this study is to design and evaluate a hot water heat pump that uses a non - azeotropic refrigerant mixture, so that the potential of a non - azeotropic refrigerant mixture may be determined.