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Log mean temperature difference in case of counter flow compared to...

This question belongs to Mechanical Engineering Heat And Mass Transfer
Heat and Mass Transfer
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Log mean temperature difference in case of counter flow compared to parallel flow will be

Answer & Solution
Correct Answer: Option B
The larger the LMTD more heat is transferred.
In parallel flow heat exchangers both hot fluid and cold fluid flow in same direction. Counter flow heat exchanger: In counter flow heat exchangers both hot fluid and cold fluid flow in opposite direction.
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