Chemical Engineering - Heat Transfer - Discussion

Discussion Forum : Heat Transfer - Section 3 (Q.No. 30)
30.
The film thickness for laminar film condensation on vertical surface __________ from top to bottom.
cummulatively increases
cummulatively decreases
remains constant
and the surface conductance increase
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Raja said:   3 years ago
Black bodies have the highest emissivity (equal to 1) and rough surfaces have higher surface area than polished surfaces.

So, black and rough surfaces emit radiations more rapidly.

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