For the same inlet and outlet temperature of hot and cold fluids, the Log Mean Temperature Difference (LMTD) is
- A. Greater for parallel flow heat exchanger than for counter flow heat exchanger
- B. Greater for counter flow heat exchanger than for parallel flow heat exchanger
- C. Same for both parallel and counter flow heat exchanger
- D. Dependent on the properties of the fluids.
Answer: B. Greater for counter flow heat exchanger than for parallel flow heat exchanger
Explanation: Counter flow generally provides a higher LMTD for the same terminal temperatures.