For design of shell & tube heat exchanger , I am trying to find approximate value of Overall heat transfer coefficient for hot oil and dry gas?

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Ehab Banihani

a heat exchanger that will heat dry gas (natural gas) with hot oil can have a value of overall heat transfer coefficient U of 420 W/m2.C between hot oil and gases. however, the value depends on the heat exchanger specifications and operating conditions such as flow rates. reference cab be found in the below link:

Article Analysis study of shell and tube heat exchanger for clough c...

Ahsan Mehmood

Thank you I really appreciate your help....

But In the attached article his initial approximation is 375 W/m2.C and for that he has provided the reference as well I went through the reference but could not figure out that how did he get that value..