Cool down time calculation
Cool down time calculation
(OP)
I have written a code for calculating temperature profile along the coated pipeline length. Now I need to calculate cool-down time. Can somebody suggest the equations.
Thanks.
Narendranath R
narenr@narendranath.itgo.com
http://www.narendranath.itgo.com
Pipeline engineering is made easy with state of the art computer software, visit www.narendranath.itgo.com.
Thanks.
Narendranath R
narenr@narendranath.itgo.com
http://www.narendranath.itgo.com
Pipeline engineering is made easy with state of the art computer software, visit www.narendranath.itgo.com.





RE: Cool down time calculation
The inside film coefficient would be something like the formular used for a outside convection. try to look in Perry or a heat transfer text book. There must be a formular for this special case (or at leat the exponents for use in the Nu=a*Pr^b*Re^c type of formular).
Best reagards
Morten