convective heat transfer coefficient equation
convective heat transfer coefficient equation
(OP)
Hi all,
I have done some searches in this forum to find out what is the best equations to use to calculate the convective heat transfer coefficient. I think the best tip I've seen so far is a reference to ASTM C680. I do not have this standard. I'd try to find it in my local university libary later this week. But meanwhile, I would like to ask the experts here which correlations are known to be most accurate. BTW, the application I want to use it on is calculating ho due to ambient air flowing over a hot or insulated surface induced by a wind velocity. The other similar application would be to calculate the ho inside a vessel skirt.
I have done some searches in this forum to find out what is the best equations to use to calculate the convective heat transfer coefficient. I think the best tip I've seen so far is a reference to ASTM C680. I do not have this standard. I'd try to find it in my local university libary later this week. But meanwhile, I would like to ask the experts here which correlations are known to be most accurate. BTW, the application I want to use it on is calculating ho due to ambient air flowing over a hot or insulated surface induced by a wind velocity. The other similar application would be to calculate the ho inside a vessel skirt.





RE: convective heat transfer coefficient equation
Try the following link- the europeans tend to use the Gnielinski correlation
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RE: convective heat transfer coefficient equation
Tobalcane
"If you avoid failure, you also avoid success."
RE: convective heat transfer coefficient equation
TTFN
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RE: convective heat transfer coefficient equation
Twoballcane, In the past, I have always use the correlations provided in the book by James Sucec. However, I have noticed that my calculated values varies greatly with numbers calcualted by others using different sources. That is why I am asking this question. I'm hoping there is an industry acknowledged equations to use. That's all.
Thanks again, all.
RE: convective heat transfer coefficient equation
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: convective heat transfer coefficient equation
I can only hope.