Wet compression versus dry compression in heat pumps working with pure refrigerants or non-azeotropic mixtures

摘要: Abstract The principle of wet compression seems particularly attractive for heat pumps using non-azeotropic mixtures, because in this type pump the desorption process is most cases incomplete. Wet should a priori also be cycles pure refrigerant. A detailed study shows that although case ideal cycle with refrigerant, all advantages are lost when cycle's irreversibilities, such as isenthalpic expansion and non-isentropic compression, taken into account. thermodynamic analysis mixtures leads to conclusion solution recirculation offer good technical solution, spite theoretical total which allows, within limits present (fixed overall concentration, no dependence external conditions), better performances. Whether it will so practice depends inter alia on isentropic efficiency compressor.