Let's consider a heat exchanger (shell-and-tube multi-pass heat exchanger or finned/finless cross-flow tube heat exchanger) in which vapor condensation takes place and thus a cold fluid is heated. No parallel flow or counter flow heat exchanger. To account for the following;

a) Convection coefficient for the fluid passing through the pipes (h, W/m.K),

b) Convection coefficient for the fluid passing through the jacket (ho, W/m.K),

c) Total heat transfer coefficient U for the heat exchanger, (W/m.K) (pollution factors can also be taken into account in the calculation)

d) Cold fluid outlet temperature (C),

e) Flow rate of one of the fluids (kg/s),

f) Heat transfer in the heat exchanger q (W),

g) The heat transfer area required for heat transfer is A (m), or the pipe length, L (m), the number of tubes, the number of passes, etc.

Calculate using the logarithmic method or the Effectiveness-NTU method.

Draw figures in your calculations and state your assumptions. design a question like this