Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 4 (Q.No. 13)
13.
As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient
Discussion:
8 comments Page 1 of 1.
Atharv said:
4 years ago
Both B and D are correct, see the graph of boiling regimes.
Raara said:
4 years ago
@Khoda.
Htc decreases in film boiling.
Htc decreases in film boiling.
Siddhant ju said:
5 years ago
Option D should be the correct answer.
Khoda said:
5 years ago
Boiling heat transfer coefficient goes through maximum because as δT increase boiling changes from nuclear boiling to film boiling. So answer D.
Sonu prajapati said:
6 years ago
h = q/δT.
If δ T is increased then h decreases which means minimum.
If δ T is increased then h decreases which means minimum.
(1)
DPK said:
7 years ago
Please explain this.
Sachin said:
7 years ago
How will it go to a minimum? Please explain in detail.
Bajwa said:
1 decade ago
q = h(delta T).
=> If difference between wall temperature and bulk temperature increases boiling heat transfer coefficient will decreases (even goes through a minimum).
=> If difference between wall temperature and bulk temperature increases boiling heat transfer coefficient will decreases (even goes through a minimum).
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