Specifics of calculation and prediction of the operation of heat pumps working on fourth generation refrigerants

In this paper, the main metrics for measuring the productivity of vapor compression heat pumps (VCHP) from the thermodynamic and environmental points of view were discussed. Global Warming Potential (GWP), Total Equivalent Warming Impact (TEWI), Life Cycle Climate Performance (LCCP) were used as environmental metrics for assessing the VCHP impact on the environment. In order to calculate the impact of each metrics a water-to-water vapor compression heat pump working on fourth-generation refrigerants, such as R1234ze, R1336mzz (E), R600a, R744, was adapted. The dominant role of LCCP in the assessment of low-carbon refrigeration heat pump and air conditioning equipment was noted.