| Abstract: | In the past non-azeotropic binary refrigerants were frequently proposed for use in refrigeration plants on account of their favourable qualities regarding energy economy, capacity control and bridging of wide temperature ranges. Up to now, however, they did not succeed in industrial use, because these aspects were not prevalent for the exclusive methods of refrigeration by the conventional compression refrigeration cycles. It is demonstrated that non-azeotropic refrigerant mixtures provide considerable advantages for heat pump application in this direction.The possibilities of different refrigerant mixtures and their composition for use in heat pump cycles are especially regarded.First results of measurements concerning the application of those mixtures are given and discussed. |
