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.

Mahesh said:   1 decade ago
How it is equal ?

Ahmed said:   1 decade ago
How it could be?

Suraj said:   9 years ago
How? Explain me.

Sameer said:   9 years ago
If some dirt is deposited it must be lesser than clean overall heat transfer coefficient. How could it be equal?

I think the answer must be 3.

Siddhi said:   8 years ago
Yes, right @Sameer.

Dirt deposit it must be lesser. So it is negligible and question giving both same tubes. So may be answer A is correct.

Venkata kumar said:   8 years ago
Imagining the dirt deposited, Rd is added to the U. So, A is correct.

Abhi said:   7 years ago
The correct answer is C.

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

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

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


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