Chemical Engineering - Heat Transfer - Discussion

Discussion Forum : Heat Transfer - Section 6 (Q.No. 16)
16.
Overall heat transfer co-efficient of a particular tube is U1. If the same tube with some dirt deposited on either side has coefficient U2, then
U1 = U2
U2 > U1
U1 > U2
U1 = dirt factor - U2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
17 comments Page 1 of 2.

Yadav said:   2 years ago
The Correct answer is C.

Sumit Patil said:   3 years ago
I too agree, C is the correct answer.
(2)

Anil Kumar V S said:   3 years ago
If dirt is on either side of a tube provide additional resistance againt heat. So, HT Will be reduced in dirty tubes compared to clean tubes. The answer is C.
(1)

Shubham said:   3 years ago
How can you say that the dirt deposit must be lesser?

Please explain me.

Rahul said:   3 years ago
Why dirt deposit must be lesser? Explain please.

Ankit Saini said:   4 years ago
The dirt deposit must be lesser. So it is negligible and question giving both same tubes. So the answer A is correct.

Yes, right @Siddhi.

Alpesh Solanki said:   4 years ago
The clean overall HTC is always greater then dirty overal HTC.
(1)

Anooj Pillai said:   5 years ago
The correct answer is C.
(1)

Ashim said:   7 years ago
I think the correct answer is C.
(1)

PATEL NIKUNJKUMAR said:   7 years ago
I think the Correct answer is C.


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