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Q. |
A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to |
A. | d0.8 |
B. | d-0.2 |
C. | d-1 |
D. | d-1.8 |
Answer» B. d-0.2 |
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