15 September 2011

FIELD TEST OF DESICCANT HUMIDITY CONTROL SYSTEM USING WATER SOURCE HEAT PUMP


This paper reports on the field test of an air-conditioning system that can save
energy by processing a latent heat load and a sensible heat load separately. A feature of this air-conditioning system is that it allows air-conditioning heat source equipment to be more efficient because the temperature difference between the hot and cold water used is smaller than conventionally would be the case. However, if cold water at a higher temperature than is conventionally used is employed, the cooling and dehumidification provided by the system would be insufficient. Therefore, the realization of a high-efficiency dehumidifier is vital. The
authors built a prototype desiccant humidity control system that can make effective use of the waste heat generated by a water source heat pump, and conducted a field test to evaluate its humidity control performance. The results of the test were that the prototype had humidity
control performance sufficient for office air-conditioning, and that the efficiency of the airconditioning heat source equipment that produces cold water was significantly improved.