Condensation heat transfer coefficient outside the vertical tube bundle
Thread Content
The textbook on chemical engineering principles provides only the condensation heat transfer coefficient for horizontal tube bundles; using n = 3/2 squared * d can replace d in the original formula. So what is the condensation heat transfer coefficient for vertical tube bundles?
Standard answer: Use the formula for a vertical wall.
Let me ask further: is the characteristic dimension based on the length of a single heat exchange tube, L, or the total length of all heat exchange tubes, nL?
It is clearly the “length L of a single heat exchange tube”, as the tubes do not affect each other.