external heat losses in pipe

[Lasuen]

I would like to calculate heat losses in an insultaed pipe, 100 mm of mineral wool insultaion, 300 meters length, 6", wtih inicial temperature of 362ºc

After that, how could I know final temeprature?

thanks

 

[IRstuff]

"calculate heat losses in an insultaed pipe, 100 mm of mineral wool insultaion, 300 meters length, 6", wtih inicial temperature of 362ºc"

There are probably dozens of postings discussing the usage of convective heat transfer equations to do exactlty this.

"know final temeprature"
Have you bothered to tell us whether you're doing a steady state or transient analysis?

TTFN
faq731-376

 

[vpl]

Besides deciding whether it's steady state or transient, you also need to know the temperature outside the pipe, the pipe material, and the thickness.

You can find basic steady-state convection formulas on wikipedia. If you want something more, here's a link to a free heat transfer text book:

http://web.mit.edu/lienhard/

http://www/ahtt.html.

Patricia Lougheed

******

Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of the Eng-Tips Forums.