Chemical Engineering - Heat Transfer - Discussion

Discussion Forum : Heat Transfer - Section 2 (Q.No. 13)
13.
Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because
convection becomes important
conduction becomes important
radiation becomes important
sub-cooled boiling occurs
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Virendrasinh Parmar said:   2 years ago
As the temperature is above the Leiden frost temperature then vapour film develops on the heating surface and liquid is not in direct contact of the surface hence radiation is more important in film boiling.
(4)

Ankit said:   8 years ago
Above the boiling point of liquid its radiation effect will increase rapidly.
(2)

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