Measurement Options of the Effects of Refrigerant Change in Heat Pump Applications

Abstract

The majority of refrigerants used in heat pumps make a significant contribution to global warming and have recently been limited in their use. These restrictions encourage the use of so-called natural refrigerants with a minimal environmental impact. Their use in the case of new heat pump constructions is not problem, however, in the case of machines whose technical condition allows further operation, we do not have sufficient knowledge of the effects of refrigerant change on the equipment. In this work, we would like to present the measurement options that allow the investigation of the effects of a refrigerant change on an experimental device.