Last question of the morning session for 2017 case

2017-09-27View Original

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The last question is about the total heat transfer coefficient after fouling occurs; has anyone worked out the answer?

Reply #22017-09-28

Why isn’t anyone discussing this problem? Is there something wrong with the data given? Has anyone managed to solve it? Please give some advice

Reply #32017-09-28

Are there any photos? I can’t remember much; it seems not too difficult

Reply #42017-09-28

None of them were able to solve this question. . . .

Reply #52017-09-29

It seems that option C should be chosen; the formula can be found in the TianDa textbook. First, the external heat transfer coefficient needs to be calculated, followed by the total heat transfer coefficient, which is then adjusted using di and do. The calculated value is quite close to the answer.

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Last question of the morning session for 2017 case

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