Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by____________________?
Correct answer: C. Keeping the heat transfer surface clean
- A. Increasing the tube length
- B. Enhancing the fluid pumping rate
- C. Keeping the heat transfer surface clean
- D. None of these
Explanation
Deposits and dirt add thermal resistance between the fluid and the wall, lowering the overall heat-transfer coefficient. Keeping the surface clean therefore improves heat recovery without requiring extra pumping power.
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