minimum water outlet temperature that a cooling tower can reach

[lotus7312]

Hi, all,
Do you have any idea that the minimum temperature of the water outlet that a cooling tower(natural draft/mechanical draft) can reach?
Thanks

 

[joerd]

You can download a little DOS program:

http://www.cheresources.com/kavlc.exe,

which is based on the method described here:

http://www.cheresources.com/ctowers.html

Cheers,
Joerd

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[quark]

Area Wet Bulb Temperature + 3 to 5⁰C

This 3 to 5⁰C is called approach of cooling tower. Some manufacturers claim even 2⁰C but I have yet to see such a fictituous equipment.

Regards,

 

[25362]

Some designs even go for an approach (cooling water outlet to the wet bulb T of the entering air) as low as 2.2^oC .
For a cooling range of 14 to 20^oC, this would result in a filling height of up to 12 m (!).