Verification of the actual number of tubes, standard tube array size, and heat transfer coefficient in falling film evaporators
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Recently, I have been designing falling film evaporators, and I want to use a hexagonal tube arrangement for the tubes. However, the number of tubes calculated using the heat transfer coefficient and area I selected differs significantly from the number of tubes given in textbooks. Moreover, when checking the heat transfer coefficient, I am not sure whether to use the original calculated area or the area after the tube arrangement is applied. By the way, does the piping have to cover the entire hexagon? Is it possible for only the outermost hexagon to be piped without the rest being covered? Thank you all :)
When you verify the heat transfer coefficient, you do so on the basis of the structure; you should already know which piping layout to choose. Additionally, for the hexagons, even a rough calculation of the number of pipes can be adjusted and optimized later.
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