Experimental investigation conducted in this study consist of a liquid desiccant dehumidification system composed of a flat plate energy exchanger for latent and sensible energy exchange between ambient moist air to be processed and Liquid Desiccant Solution (LiDS). This system imparts large interfacial surface are abetween LiDS and process air. This system reduces the airside pressure drop and carryover of desiccant droplets as there is an interfacial film contact amongst the process air and LiDS instead of direct intermixing which is associated with spray tower and packed bed dehumidifiers. It also provides complete film formation of LiDSover an entire surface of the flat plate which is the limitation of falling film absorbers. The system comprises of an absorber, a regenerator, a LiDS heat exchanger to precool and preheat the LiDS and a cooling tower and a set of solution pumps. Calcium chloride (CaCl2) has been used as a desiccant material with 40% and 35% by wt. concentration with three sets of velocities of process air i.e. 0.9, 0.7, 0.5 m/s. Performance analysis of the dehumidification system has been represented in terms of dehumidification and regeneration effectiveness, moisture absorption rates and regeneration rates.
Volume 11 | 01-Special Issue
Pages: 1097-1107