A Study on the Performance of Refrigeration System in the Humidified Air

To complete the refrigeration cycle experiments in multiple function environment laboratory by controlling non-condensable gas in content which existed in the air-cooled air condition system consisting of mainly R410A. During the experiment, we collected evaporation pressure, condensing pressure, evaporating temperature and condensing temperature fluctuations and other waving signals, meanwhile we captured sections of the mobile image using high speed photography. The results show that the presence of non-condensable gas increases the system pressure and temperature at varying degrees. This affects the refrigerant vapor condensation heat transfer, increases heat resistance and lower heat transfer coefficient. Therefore, it will finally affect the cooling.