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Pusparajan
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Join Date: Feb 2011
Location: Malaysia
Posts: 4

Cooling Tower

02/07/2011 9:33 PM

Do any one know how to calculate cooling tower evaporation rate and what is the standard rate for per tonnage.
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#1

Re: Cooling Tower

02/08/2011 2:42 AM

Cooling tower manufacturers publish performance charts for their towers.

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Tornado
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#2

Re: Cooling Tower

02/08/2011 7:07 AM

To determine evaporative condenser or cooling tower requirements, you must add the the compressor energy to the refrigeration tonnage. There is no one standard multiplier for this, because it depends on the refrigerant, the compression ratio, and the type of compressor. The THR (total heat rejection) at the condenser/tower can run from about 1.15 to 1.40 (very rough numbers) times the refrigeration tonnage.

If you are using Btu as your units, 1 hp = 2545 Btu/h.

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No_eing
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Join Date: Apr 2010
Posts: 22
#3

Re: Cooling Tower

02/13/2011 6:31 AM

The following should be helpful: E = 0.0013 x delta T x Q.

Where E = Evaporation rate in cu.m. /hr

Delta T of the Cooling water in Deg C

Q = Recirculating rate in cu.m./hr.
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