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Chemical Engineering · Q399

Heat Transfer

Engineering and GATE · Chemical Engineering · question 399

Q399

The overall heat transfer co-efficient for a shell and tube heat exchanger for clean surfaces is U0 = 400 W/m2.K. The fouling factor after one year of operation is found to be hd0 = 2000 W/m2.K. The overall heat transfer co-efficient at this time is

A.
1200 W/m2.K
B.
894 W/m2.K
C.
333 W/m2.K
Answer
D.
287 W/m2.K

Answer: Option C

Solution

Answer: Option C
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