3311Chemical EngineeringMedium
Out of the following four assumptions used in the derivation of the equation for LMTD [LMTD = (Δt1 – Δt2)/ln(Δt1/Δt2)], which one is subject to the largest deviation in practice?
AConstant specific heat
BConstant rate of fluid flow
CNo partial phase change in the system
DConstant overall heat transfer co-efficient.
Correct answer
B. Constant rate of fluid flow
Explanation
The correct answer is Constant rate of fluid flow.