Air Washer Efficiency Calculation 2

[Chinsoowei]

I am in textile industry. My Air Conditioning system consist of Air Washer. Anyone have the calculation of Air Washer's Efficiency? Or how to calculate the eff?

Thanks

 

[SAK9]

Air Washer Fundamentals

Air drawn through a mist caused by spray nozzles and then through eliminators to remove dust and particles of water not evaporated in the air.

Air is drawn through a mist caused by spray nozzles and then through eliminators to remove dust and particles of water not evaporated in the air.
The water for the spray nozzles are recirculated by a pump.
A tempering heater is usually installed before the washer. A reheating battery after.

General
Cleaning efficiency 70% of fine dust, 80% of coarse dirt

Air velocity through the washer 2-3 m/s

Resistance 50-140 N/m2

Water pressure for nozzles 100-170 kN/m2

Water quantity 0,45-0,55 l/m3 air


Humidifying efficiency
E = (t1-t2)/(t1-tw)x100%

where

E = Humidifying efficiency %
t1 = initial dry bulb temperature
t2 = final dry bulb temperature
tw = initial wet bulb temperature


Typical efficiencies
60-70 % with one bank of nozzles downstream
65-75 % with one bank of nozzles upstream
85-100 % with two banks of nozzles

 

[Chinsoowei]

Thanks SAK9 !

 

[lilliput1]

Make sure you avoid Legionaire's Disease by putting a recirculating pump with cartridge filter & UV light sterilizer in the piping, recirculating the sump water. Also have the water treatment contractor treat the sump water with biocide.