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[curious_cat]

Are there any heuristics / nomograms / thumb rules to estimate fluid temperature from measured pipe external surface temperature? Given a common pipe material, thickness & size, of course. 

 

Often in a field setting I encounter a non-thermowelled pipe and one solution to get  a rough estimate is a thermocouple or IR temperature gun used on the pipe wall (assuming a small uninsulated area can be isolated).

 

I guess I could look up conductivities etc. and then estimate heat flux for loss etc. but wondering if a better option exists. Want to avoid reinventing the wheel here.  

 

Let's assume a typical fully developed turbulent flow situation. I am only interested in a rough estimate here. 

Edited by curious_cat, 23 September 2013 - 04:15 AM.

[Padmakar Katre]

Hi,

Here are few links and required stuff,

http://www.cheresour...d-storage-tank/

http://www.cheresour...&attach_id=6725

http://www.cheresour...-and-heat-loss/

http://www.cheresour...insulated-pipe/

 

Good luck