Performance Studies for an Experimental Solar Open-cycle Liquid Desiccant Air Dehumidification System
نویسنده
چکیده
A nominal 10.5-kW (3-ton) open-cycle liquid desiccant d ehumidification system has been design_ed, installed, and successfully operated at the Solar Energy Applications Laboratory, Colorado State Umvers1ty. Packed bed units were used to dry the air in the dehumidifier and to concentrate the desiccant _m the regenerator. Liquid distribution in the regenerator was studied for two systems: a gravity tray d1stnbutor, and a spray nozzle system. Higher capacities ( 40-50% mcrease) and .lower pressure drop ( 30-40% reduction ) for the air flow were observed with the spray system. Coohng capacities of 3.5-14.0 kW ( 1.0-4.0 refngerat10n tons ) were achieved for both the regenerator and dehumidifier. Funct10nal relat1onsh1ps correlatmg.the independent variables to the rate of vaporization in the regenerator and rate of condensation m the dehum1~fier were obtained by statistical analysis of the experimental data. These studies thus proVJ~e data and .correlations useful for design guidance and performance analysis of similar open-cycle hqu1d desiccant coohng systems, particularly for the liquid / vapor contact units.
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