Theoretical analysis of the refrigerants for the moderate and high temperature water-source heat pump

One of the key issues in the development of moderate and high temperature heat pump technology is to find out environmentally friendly working fluids with satisfactory cycle performance. The purpose of this paper is selection and proposed moderate and high temperature heat pump working fluid, using HFCs and HCFCs in class pure and mixed refrigerants as the research objects, by theoretical calculation of cycle performance, screening out the theory of pure good cycle performance, and two non-azeotropic mixtures M1,M2. © 2011 IEEE.