Experiment on Temperature- and Humidity-Controlled Air Conditioner with Dual Evaporation Temperature

To address the problems of energy waste and imbalance between heat and humidity in traditional combined heat and moisture treatment, the annual hourly energy consumption of a residential building in Shanghai was simulated by EnergyPlus software in this study. According to the simulation results, the independent temperature and humidity control technique was combined with dual evaporative temperature compressor, and a temperature- and humidity-controlled air conditioner test bed was established based on dual evaporation temperature. Relevant theoretical calculations were performed, and the operational characteristics of the air conditioner under whole-year operation conditions were experimentally investigated. The results show that it is feasible to use an air-conditioning unit with a double evaporative temperature compressor in an air-conditioning system with separately controlled temperature and humidity, which meets the design requirements and has obvious energy efficiency. In summer, the energy efficiency ratio of the compressor is 3.5, which is 14.8% higher than that of the inverter compressor of conventional air conditioning with the same cooling capacity (3.04). At the same time, the energy efficiency ratio of the unit compressor under the design conditions in winter is 4.3. Compared with the inverter compressor of conventional air conditioning with the same cooling capacity, the air conditioner with dual evaporation temperature shows remarkable energy savings.