3 replies to this topic

[Art Montemayor]

minoo81:

I believe HTRI has the capability of designing a kettle type reboiler. That is the generic type of reboiler coil that you should consider, in my opinion.

Both an “internal” reboiler tube bundle and a kettle tube bundle do the same basic thing: they add latent heat of evaporation to a liquid bath while totally submerged in the same. Shell-side natural convection currents predominate and the shell-side coefficients should be very similar, if not the same, for both types.

I don’t think you have to resort to employing an X or K type in HTRI, trying to “fool” the program because you will wind up with HTRI trying to generate shell side coefficients that are not based on natural convection, but rather forced convection – which will have HTRI calculate a higher heat transfer coefficient on the shell side. This will lead to a smaller calculated tube bundle than what you would need.