Applying refrigerant mixtures with thermal glide in cold climate air-source heat pumps

Improving cold climate air-source heat pump performance with refrigerant mixtures

“…This study is therefore based on detailed modelling of a heat pump cycle using refrigerant mixtures. It is a continuation of our previous studies [5], [11] and [12] about the application of refrigerant mixtures in cold climate residential heat pumps. A detailed screening heat pump model previously developed [5] is modified and applied for a heating system, in order to investigate the seasonal performance of a cold climate air-source heat pump with refrigerant mixtures.…”

“…It is a continuation of our previous studies [5], [11] and [12] about the application of refrigerant mixtures in cold climate residential heat pumps. A detailed screening heat pump model previously developed [5] is modified and applied for a heating system, in order to investigate the seasonal performance of a cold climate air-source heat pump with refrigerant mixtures. It is expected to contribute to the development of a reasonably low cost heat pump that can work at low temperature, which would result in a major reduction of the secondary energy use and the associated Greenhouse gas (GHG) emissions.…”

“…In previous studies of the authors [5,11], it was shown that the mixture of R32/CO 2 had the best performance among the refrigerant mixtures considered. The main component of…”

“…Many works have reported an increase in heat pump performance when using zeotropic refrigerant mixtures [4,5].…”

“…The use of refrigerant mixtures with the aim of increasing the COP and the heating capacity at low temperatures is an area that has not been widely researched to date [5].…”