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11Â¥2011-01-31 13:37:17
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hyzhangsky

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Assume: (1) Very short tube: Case A is better due to high heat transfer coefficient;
(2) Long tube: Delta T is smaller  for large flow but heat capacity is large so Case B is better due to larger heat capacity.
There is no mention about the length so it is a fake problem.
Behungry,befoolish
12Â¥2014-12-27 22:12:27
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