About high fin tube heat exchanger design
About high fin tube heat exchanger design
(OP)
Dear all,
I am now trying to design an effective heat exchanger used for heat recovery from high temperature gas(higher than 450 C).
The gas is supposed to flow outside the finned tubes. However, the Aspen Exchanger Design & Rating software seems only be able to design low fin tubes, with fin height lower than 1.5mm.
So I wonder if it is not possible to design high fin tube & shell heat exchanger using commercial software like Aspen EDR or HTRI?
Thank you.
I am now trying to design an effective heat exchanger used for heat recovery from high temperature gas(higher than 450 C).
The gas is supposed to flow outside the finned tubes. However, the Aspen Exchanger Design & Rating software seems only be able to design low fin tubes, with fin height lower than 1.5mm.
So I wonder if it is not possible to design high fin tube & shell heat exchanger using commercial software like Aspen EDR or HTRI?
Thank you.





RE: About high fin tube heat exchanger design
The factors for most finned tubes are empirical.
Are these wrapped fins or welded?
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P.E. Metallurgy, Plymouth Tube
RE: About high fin tube heat exchanger design
Details not determined yet. I see what you mean. But my puzzle is, I used commercial software to do the primary design and I guess most factors in the software for low-fin tubes are empirical (rather than numerical solutions), but why don't they have factors for high fins? It seems that only specific air-cooled heat exchangers have different fin options. But what about the non-air-cooled heat exchangers? If they cannot deal with high fins, does it mean that the only way is to find proper correlation factors and do my own design programming?
RE: About high fin tube heat exchanger design
Each of the companies publishes their own factors.
The low fin world is fairly standardized by comparison.
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P.E. Metallurgy, Plymouth Tube
RE: About high fin tube heat exchanger design
-Christine
RE: About high fin tube heat exchanger design
The low fin is not satisfactorily effective especially on the gas side (shell side). I will try to find the high fin factors and use them to do the calculation and comparison. I will do the pressure drop too to see if its too high for requirement. Thank you again.