Performance Evaluation of Water Source Makeup Air Unit applied Desiccant Rotor Dehumidified at Low-temperature on Air Conditioning Systems using Water Source Heat Pump Units

摘要

The target of this study is to develop the high efficiency air conditioning system using water source heatpump units. The water source makeup air unit applied the desiccant rotor whose adsorption/desorptionprocesses can work at low-temperature was developed for one kind of units on the high efficiency airconditioning system. This makeup air unit consisted of the refrigerant cycle, the water heat source line, andthe desiccant rotor. A prototype makeup air unit was produced and its performance was tested. As results,the capacity was 4.84kW and COP was 4.78 under the cooling/dehumidifying operation at the heat sinkwater of 32℃, the inside air of 27℃DB / 19℃WB and the outside air of 33℃DB / 28℃WB. The capacitywas 6.79kW and COP was 5.62 under the heating/humidifying operation at the heat source water of 25℃,the inside air of 22℃DB / 15℃WB and the outside air of 0℃DB / -3℃WB.