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How do I design a tank heat exchanger that uses steam in longitudinal finned tubes?
Q: I want to design a tank heater exchanger that uses steam in longitudinal finned tubes (1 or more U) to keep a storage tank in a constant temperature. I have calculated the heat loss from tank (duty of exchanger) and now I need the correlation for heat transfer coefficients in both tube side (longitudinal finned tubes) and shell side (storage tank) which is natural convection. Then it will be possible to calculate the overall heat transfer coefficient.
A: I suggest you refer to "Process Heat Transfer" by Hewitt, Shires & Bott for both natural convection and tubeside heat transfer correlations. There is also a section on dealing with extended surfaces that is general enough to be able to apply to longitudinal fins.
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