LMTD for evaporators & condensers for a given terminal parameters & set of conditions for counter-flow is equal to that for parallel flow. In such heat exchangers, with one of the fluids condensing or evaporating, the surface area required is the least in the ______________ flow?

Question

Accepted Answer

Same in either A , B. or C.. For LMTD calculations with constant heat transfer coefficients (like in condensation/evaporation), the required surface area is often similar for different flow arrangements.