Question

Provision of fins on a given heat transfer surface will be more, if there are:

• A. Fewer number of thick fins
• B. Fewer number of thin fins
• C. Large number of thin fins
• D. Large number of thick fins

Hint:

In heat transfer applications, thin fins are more effective than thick fins because they offer more surface area for heat exchange, improving heat transfer efficiency.

Answer 1

The Correct Option is C

The heat transfer area increases with the number of fins, and the efficiency of heat transfer improves with thin fins because they increase the surface area for heat dissipation. A larger number of thin fins ensures greater heat transfer.
- Large number of thin fins is correct because thin fins provide more surface area for heat dissipation.
- Fewer number of thick fins is incorrect because thick fins do not offer as much surface area as thin fins.
- Fewer number of thin fins is incorrect because fewer fins reduce the surface area.
- Large number of thick fins is incorrect because thick fins do not have as much surface area as thin fins.
Therefore, the correct answer is (3), Large number of thin fins.