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
Discussion:
17 comments Page 1 of 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)
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.
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.
Dirt deposit it must be lesser. So it is negligible and question giving both same tubes. So may be answer A is correct.
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.
Yes, right @Siddhi.
Shubham said:
3 years ago
How can you say that the dirt deposit must be lesser?
Please explain me.
Please explain me.
Venkata kumar said:
8 years ago
Imagining the dirt deposited, Rd is added to the U. So, A is correct.
Alpesh Solanki said:
4 years ago
The clean overall HTC is always greater then dirty overal HTC.
(1)
Rahul said:
3 years ago
Why dirt deposit must be lesser? Explain please.
Sumit Patil said:
3 years ago
I too agree, C is the correct answer.
(2)
PATEL NIKUNJKUMAR said:
7 years ago
I think the Correct answer is C.
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