Regeneration process of heat pump, operating on mixture coolant. Numerical and physical researches of efficiency
New high efficiency and environmental friendly refrigerants for heat pump were investigated. All investigations were performed with help of modular experimental model of heat pump. That model allows to hot-change different working medium and any node of device. The mixture components used were С3F8 and SF6 (R218/R846). It is shown that using of these coolants allows to increase heat pump devices efficiency and coefficient of performance.<br> At the same time including of heat regeneration/recuperation device is highly necessary in working cycle of heat pump. Investigations of different types of recuperator – tubular type, and plate type were executed. It is shown that using of plate type recuperator provides more efficiency of the heat pump.