Sökning: "HCFC142b"
Hittade 2 avhandlingar innehållade ordet HCFC142b.
1. Measurements and Modelling of Convective Vaporization for Refrigerants in a Horizontal Tube
Sammanfattning : An evaporator facility has been constructed to measure local values of heat transfer and pressure drop. The evaporator resembles a normal working evaporator tube in a direct-expansion evaporator applicable to large heat pump/refrigeration cycles, typically over 500 kW. The evaporator is brine-heated and uses an expansion valve to control the inlet. LÄS MER
2. Non-Azeotropic Mixtures as Working Fluids in Heat Pumps: A theoretical and experimental study
Sammanfattning : Due to the fact that CFC (Chloro-Fluoro-Carbon) fluids will be forbidden as working fluids in heat pumps for environmental reasons, there is an urgent need for alternatives. As one alternative type of fluid, non-azeotropic mixtures have been suggested. This thesis deals with such mixtures. LÄS MER