In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always

Question

Quizplus · Accepted Answer

In a liquid-liquid heat exchanger, the Log Mean Temperature Difference (LMTD) in parallel flow is always less than the LMTD in counter flow for the same process temperatures. This is because the temperature gradient between the two fluids decreases more rapidly in parallel flow, leading to a lower average temperature difference across the heat exchanger.

In a Liquid-Liquid Heat Exchanger, for the Same Process Temperature