In-situ performance evaluation of the desiccant heating, ventilating, and air-conditioning system using multiple tracer gas dilution method

Abstract

The desiccant heating, ventilating and air-conditioning system (DHVAC) consists of many heat and mass transfer components operating together with air fans. The performance test using the multiple tracer gas dilution method is important for knowing the internal and external flow rates, including the air leakages. The results of the test show the actual internal air flow rates and the sources of air leakage, and also show the interaction of air in the air-conditioned lecture room and in the mechanical room. The performance test using the multiple tracer gas dilution method in air flow and air leakages is important for a detailed evaluation of DHVAC.