Chemical Engineering - Heat Transfer - Discussion

Discussion Forum : Heat Transfer - Section 8 (Q.No. 9)
9.
If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will
increase by 1.8 times
decrease by 22
increase by 216
remain unchanged
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
5 comments Page 1 of 1.

Nitesh said:   3 years ago
I tink the right answer should be option A.

Angelin said:   4 years ago
Increasing the no Of passes do not change the velocity for the same flow rate.

UDAY KUMAR said:   4 years ago
Pressure drop is directly proportional to (n)^2.8.

Psc said:   6 years ago
Dear @Prakash. By increasing pass from 1 to 2, the velocity at the tube side also increase so it should be calculated in tube side pressure drop so the answer should be 6.96 times increasing.

Prakash Dhanaraj said:   7 years ago
P is directly proportional to the number of tube passes. So if it is changed from a single pass to two passes then P will be increased by 2 times.

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