non condensables
non condensables
(OP)
I am attempting to size a condenser and am looking for any information on how to do this with non condensables in the system. I have cooling water in the shell entering at 10 degrees C. Through the inner tube I have a mixture of steam, NOx vapors, and air entering at 100 degrees C. This will be a countercurrent flow HE.
I understand all the heat balance equations and such, but I am unsure how to calculate heat transfer coefficients with the non condensables in the system.
Any help/suggestions is appreciated.
Thank you
I understand all the heat balance equations and such, but I am unsure how to calculate heat transfer coefficients with the non condensables in the system.
Any help/suggestions is appreciated.
Thank you





RE: non condensables
RE: non condensables
RE: non condensables
The calculated heat transfer surface will need to be zoned because the heat transfer coefficient will vary considerable throughout the temperature range. I haven't looked at Kern in a long time but I believe he discusses this in his book.
RE: non condensables
RE: non condensables
I should specify that I am trying to do a process design for the small scale heat exchanger and the mechanical design/fabrication will be done by an expert. I need a close approximation of the desired dimensions, but I am unsure what type of correlations to use to account for the non condensables. Thank you.
RE: non condensables