Industrial Air Washer

Air washer machine is utilizing the natural process of water evaporation along with an air moving system to create effective cooling. The ambient air is pulled through filters and it passes through the cooling pad then it cools the air through water evaporation. A blower circulates the cooled air throughout a suitable ducting and grill network arrangements.

Advantages of Air Washer

o Low installation cost, Low running/operation cost.
o Effective in high heat generation areas.
o Easy & inexpensive maintenance.
o Healthier System - Since it works on 100% fresh air.

Technical Explanation Air Washer

In the single stage Air-washer humidity level rise to that level that makes occupants uncomfortable because 6ltr. of water evaporates to give us the cooling effect of 1tr. Double stage Air-washer do not produce humidity level as high as that produced by single Air-washer.

In the first stage of a two stage Air-washer, warm Air is pre-cooled indirectly adding humidity by passing the warm Air through the heat exchange that is cooled by passing cold water which is pre cooled by the evaporation process. The pre cooled Air then passed through a water soaked cellulose pad where it picks up the humidity as it cools. Since the air supply is pre cooled in the first stage so the less humidity is transferred in the second stage to reach the desired cooling temperatures. The result is cooled air with a relative humidity between 55%-70% while single stage Air-washer produces above 75-85% of RH.

Psychometric Chart

Comparison With Conventional Air Conditioning

SL No.	Evaporative Air Cooling
1	Uses only 25% of the electricity compared with conventional air conditioning.
2	As temperature rises efficiency improves.
3	Cooling capacity is only limited by the air conditions. Up to 15KW of cooling can be achieved with only 1 KW of electricity used.
4	Open doors and windows do not affect performance.
5	Uses no harmful gases for its function.
6	Avoiding relative humidity below 50% significantly reduces static electricity problems
7	In dry weather better cooling effect can be achieved.
8	Easy and simple to service.
9	Always supplies 100% fresh air.
10	Air only cooled once.
11	Has no upper limit on temperature. No tapping problem during the high temperature period.
12	Lower purchase cost.
13	Have bigger fans - pump large amounts of air.
14	Temperature reduction limited by ambient web bulb temperature not by dry bulb temperature.
15	Provides stable relative humidity levels which are more comfortable to work in
16	Simple to create positive pressure in buildings giving hygiene and control benefits