×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Air Washer Efficiency Calculation
2

Air Washer Efficiency Calculation

Air Washer Efficiency Calculation

(OP)
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

RE: Air Washer Efficiency Calculation

2

 
 
 
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
 
 
 
 

RE: Air Washer Efficiency Calculation

(OP)
Thanks SAK9 !

RE: Air Washer Efficiency Calculation

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.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources