Desiccant Literature Review

LITERATURE REVIEW

3.1 Literature Review
The experimental analysis of a hybrid liquid desiccant dehumidifier system by Nanda Kishore. The desiccant chosen for the analysis is aqueous solution of calcium chloride. The effect of different operating variables on performance of both dehumidifier and regenerator are studied. The parameters studied are the effect of mass air flow rate, air inlet temperature, and desiccant inlet temperature. The practicability of dehumidification of supply air by the desiccant loop of the hybrid system is demonstrated [1].
A S Alosaimy is experimented to Concentration of desiccant solution regenerated by solar energy. Experimental results show that solution with 30% concentration can be regenerated up to 50% using solar energy. It was found that as the regeneration temperature was increased, moisture absorbing capacity of air was increased. As the regeneration temperature was increased, the dehumidification rate in the absorber was increased. The moisture removal rate was increased with the increasing in regeneration. As the inlet temperature of desiccant was increased, the dehumidification was reduced in the absorber, indicated the reduction in moisture removal capacity [2].

This paper is an experimental study on a structured packed tower of liquid lithium chloride dehumidifier system with different air velocity and flow rate of liquid desiccant. Desiccant temperature set into 100C and desiccant concentration is 0.4. The result of this study shows that averagely the moisture removal rate and the heat transfer rate are influenced both by the air velocity and desiccant flow rate. The result shows that high air velocity will obtain the fast air dehumidification but has low effectiveness and high liquid desiccant will obtain high