How to estimate the heat exchange area of a heat exchanger
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For U-tube heat exchangers, the key is figuring out how to calculate the overall heat transfer coefficient K; is it necessary to know the pipe diameter?
What needs to be known includes the wall thickness, tube material, the fouling thermal resistances on the inside and outside of the tubes, as well as the heat transfer film coefficients on those surfaces. There are various formulas for determining these heat transfer film coefficients. It is also necessary to know the physical properties of the working fluid, as well as the arrangement of the baffles in the shell side, their number and spacing, etc. It’s quite complicated; I recommend consulting the \"Heat Exchanger Design Manual\" by Qian Songwen. If estimating the area, the K value can be estimated based on experience, and then the calculation can be carried out
Thanks! The issue now is not knowing how to estimate Old K Heat medium hydrogen sulfide, 500°.
Take a look at the process design manual; it provides detailed information that you can use as a reference.