Fig. 11. Effect of air dry bulb temperature 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: ma = 765 kg.hr-1, Vs = 0.01 l.s-1,Tw = 80○C, Twb = 28○C).
Fig. 12 shows the wet bulb temperature effect on moisture removal rate. These graphs show the similar trend with the concentration change (Fig. 7) which is affected by the same condition. A higher wet bulb temperature causes a lower rate of moisture removal. Both Fig. 12a and 12b show that the moisture gain is higher then moisture loss by an average of around 0.2 g.s-1