×
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

cooling towers losses
4

cooling towers losses

cooling towers losses

(OP)
Could someone give me a hint on the practical calculation of evaporation and drift losses in an induced draft counterflow tower?
Thanks

RE: cooling towers losses

2
If you have 1 kg of water/sec circulating and the tower range is 50C, then heat to be removed is about 1*4.2*5 = 21kJ/sec. The latent heat of water is 2430kJ/kg. So amount of water to be evaporated is 21/2430 = 0.0086kgs. This becomes 0.86%.

Roughly 0.9% is considered for all practical calculations, nevertheless you can use the above method to find out evaporation losses.

With best quality drift eliminators, you consider 0.1% losses.

The blowdown can be calculated as ER/(C-1), where ER is rate of evaporation and C is cycles of concentration.

The link below gives you good concept about cooling towers.
http://www.cheresources.com/ctowerszz.shtml

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