Experimental study on condensate water recovery of all outdoor air temperature adjustment dehumidifiers

The main problem of all outdoor air temperature adjustment dehumidifiers is that a large amount of low temperature condensed water (usually at 10 to 15 ℃) cannot be reasonably used and is discharged as waste water. For the purpose of energy saving, studies the effect of condensate water recovery adding to the cooling water inlet on the all outdoor air temperature adjustment dehumidifier. Analyses the amount of condensate water required for reducing 2 ℃ of inlet cooling water temperature of the experimental unit under the nominal operating condition. Tests the performance parameters of the unit under the nominal condition when the cooling water temperatures are maintained at 30.6, 27.9, 26.2 ℃ respectively. The experimental results show that the system cooling capacity increases by 4.8%, the dehumidification capacity increases by 4.1%, dehumidifier capacity per unit input power increases by 3.5%, the coefficient of performance increases by 8.3%, and the input power decreases by 4.8%, when the recycled condensate water is added to the cooling water which decreases the inlet cooling water temperature from 30.6 to 26.2 ℃ under the nominal condition of the unit.