Seong-Ryong Park

An Experimental Study on the Optimization of Performance Parameter for Membrane Based Dehumidification and Air Conditioning System

Abstract There are three types of dehumidification systems ： refrigeration dehumidification method, desiccant dehumidificationmethod and hybrid dehumidification method. The first method involves removing moisture by condensation below the dewpoint, the second method involves absorption by a desiccant material and the last is an integration method. However, therefrigeration dehumidification system consumes too much power and controlling the humidity ratio is difficult. The desiccant dehumidification system uses less power but it has problems of environmental pollution. The hybrid dehumidification systemhas the disadvantage of a high initial cost. On the other hand, the energy consumption of the membrane based dehumidificationsystem is lower than for the refrigeration dehumidification system. Also, it is an environmentally friendly technology. In this study, the performance parameters are evaluated for the dehumidification system using a hollow fiber membrane. Availablearea, duct side dry-bulb temperature, sweep gas flux (flow rate) and LMPD (Log Mean Pressure Difference) were usedas the performance parameters.