heat transfer in finned tube
heat transfer in finned tube
(OP)
Hi
I read in some standard that minimum contact pressure to joint of fin to tube is 25 kpsi. if the contact pressure is less than this (for example 5 kpsi) how much heat absorbtion will be deacreasd in finned tube? (assume that there is not mechanical problem like existing of gap between fin and tube)
thanks
I read in some standard that minimum contact pressure to joint of fin to tube is 25 kpsi. if the contact pressure is less than this (for example 5 kpsi) how much heat absorbtion will be deacreasd in finned tube? (assume that there is not mechanical problem like existing of gap between fin and tube)
thanks





RE: heat transfer in finned tube
Attachement pressure plays a vital role in the heat transfer and thermal resistance at the interface but it is very improbable parameter to guess or predict. The best way is expermentation.
RE: heat transfer in finned tube
There are likely to be lab tests for the most likelyused alloys of contact heat transfer resistance vs contact stress .