HEAT TRANSFER

[kevinsnyder]

I have 3-4" thick steel platens used in processing at temperatures of 450 -600F. The original cooling system becomes ineffective due to fouling / mineral build up when water is the working fluid.

How effective is cooling with air? What flow rates are needed?

 

[IRstuff]

Sounds like you're better off trying to find some sort of chemical to neutralize the scaling. Cooling with air drops the heat transfer coefficient substantially.

TTFN

 

[25362]

To kevinsnyder, are you using evaporative cooling ? Kindly describe in more detail.