In counter flow compared to parallel flow, ?
Correct answer: A. Both A. and B.
- A. Both A. and B.
- B. Less surface area is required for a given heat transfer rate
- C. LMTD is greater
- D. More surface area is required for a given heat transfer rate
Explanation
For the same terminal temperatures, countercurrent flow generally gives a larger LMTD than parallel flow. Therefore, it achieves the same heat duty with less required surface area, making both statements correct.
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