Cooling tower

[Vishal Kumar]

What is an usual value for cooling tower efficiency ?? Mine is coming arround 22% sounds so low or is it matching Industry standard. What r ur takes

 

[Compositepro]

What is your definition of cooling tower efficiency?

 

[Vishal Kumar]

The standard definition - Range/(range+approach)

 

[MJCronin]

Good background information here:

https://spxcooling.com/wp-content/uploads/TR-016.pdf

http://www.idc-online.com/control2/Cooling_Tower_Efficiency_Calculations.pdf

MJCronin
Sr. Process Engineer

 

[EdStainless]

I will tell you that when towers are tested at least 35% of them fail to make their design point.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy

 

[LittleInch]

Well that sounds like you have a small range and a large approach.

Some numbers would help here.

There is a finite limit for approach of probably 5F, but that requires a large tower according to spx.

A more normal approach range appears to be 15 to 20F.

So 22% sounds a bit low, but what are your parameters / design and measured wet bulb temperatures?





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[0707]

The efficiency of your cooling tower, also depends on chemical treatment of water that shall all ways taken into account.

luis

 

[Vishal Kumar]

Sir the cws temp is 34 and return temp is 38,39
Wet bulb being around 18-20

 

[LittleInch]

Must be quite small then compared to flow rate.

What does the vendor design say / look like?

Flowrate?
Size of tower?
Forced draft or natural?
Location?
Pictures?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.