Fig. 13. Effect of air flow rate on moisture gain in the air and moisture loss in solution a. water flow rate at 200 kg.hr-1 b. water flow rate at 300 kg.hr-1 (Conditions: Vs = 0.01 l.s-1, Tw = 80○C, Twb = 28○C, Tdb = 36○C).
The moisture gain in the air is generally higher than the moisture loss from solution at average about 0.2 g.s-1. The maximum moisture gain is around 1.8 g.s-1 and maximum moisture loss is approximate 1.7 g.s-1.
C. Comparison with Previous Results
A number of previous investigations express the regenerator performance in terms of moisture increase in the air [16, 17]. The current work however expresses the performance in term of the change of solution concentration in the regenerator. This is due to the fact that in the absorber, it is the concentration of solution which dictates the effectiveness of moisture transfer from the air to be humidified to the solution.
A number of investigations have been carried out to study the performance of the regenerators. Fumo and Goswami [18] studied the air dehumidification and desiccant regeneration using packed tower absorber and regenerator. Katejanekarn and Kumar [19] studied the performance of solar-regenerated liquid desiccant ventilation pre-conditioning system. They used the solar collector/regenerator (C/R) to regenerate the desiccant solution.