Air side fouling resistance of Air coolers
Air side fouling resistance of Air coolers
(OP)
Dear All,
The air side fouling resistance was specified as 0.00035 W.m2/K in one of the engineering specifications. In my view, this is even almost equivalent to crude oil applications I would like to ask the basis of such specification, is this targeted to maximize the pressure drop across tube bundle as the air side pressure drop shall be at least 95% of the total pressure drop.
Thanks
Regards,
The air side fouling resistance was specified as 0.00035 W.m2/K in one of the engineering specifications. In my view, this is even almost equivalent to crude oil applications I would like to ask the basis of such specification, is this targeted to maximize the pressure drop across tube bundle as the air side pressure drop shall be at least 95% of the total pressure drop.
Thanks
Regards,
RE: Air side fouling resistance of Air coolers
Attached a comparison table for air coolers, none of the vendors are considering dirt coefficient on the air side.
Make sense to me, regular cleaning of the fins is required.
Note: Brochure from Hudson
https://files.chartindustries.com/hudson/BasicsofA...
Pierre
RE: Air side fouling resistance of Air coolers
It seems to say that this allowance should be used in the overall heat transfer coefficient to allow for some level of fouling but look to me to be a very low number.
So even with 50K difference in temp this is only 0.0017 W/m2. That's nothing. Have you got the units right?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Air side fouling resistance of Air coolers
RE: Air side fouling resistance of Air coolers
A link underneath with several examples, to confirm my thoughts.
By the way, the fouling coefficient seems to be for liquid inside the tubes.
https://eclass.uth.gr/modules/document/file.php/MI...
Pierre
RE: Air side fouling resistance of Air coolers
"W.m2/K " in the OP, now "m2. K / W2"
What is it ?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Air side fouling resistance of Air coolers
RE: Air side fouling resistance of Air coolers
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.