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Mechanical Engineering · Q77

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 77

Q77

LMTD in case of counter flow heat exchanger as compared to parallel flow heat exchanger is

A.
Higher
Answer
B.
Lower
C.
Same
D.
Depends on the area of heat exchanger

Answer: Option A

Solution

Answer: Option A
Solution:
Counter flow heat exchangers are inherently more efficient than parallel flow heat exchangers because they create a more uniform temperature difference between the fluids, over the entire length of the fluid path.
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