Investigation of Working Fluid Performance in a Refrigeration Cycle

Abstract With global warming and climate change, the world is experiencing a steady temperature rise. Hence need for effective efficient air conditioning, cooling refrigeration systems higher than ever. One of key elements influencing system performance working fluid. From 2022, new in UK must not use fluids with potential (GWP) above 150. Widely used R134a, GWP 1430, therefore being banned suitable replacement fluids, equivalent or similar thermodynamic performance, imminent. This paper looks into low refrigerant assesses their suitability to be utilised as historically R134a. Operation cycle based on R134a comprehensively compared selected different operating conditions. Low (R152a, R1234yf, R1234ze(E), R290, R600a) were carefully include broad range thermophysical properties cover several fluid categories. Compression work requirement, capacity overall are evaluated typical scenarios. We conclude that both R1234ze(E) R1234yf good alternatives. In particular, outperformed by requiring less compression achieving significantly COP same capacity.