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An electric circuit board is to be cooled by forced convection through cooling fins. Heat of 100W needs to be removed from this board from a
Question
An electric circuit board is to be cooled by forced convection through cooling fins. Heat of 100W needs to be removed from this board from a maximum temperature of 40 degree Celsius above the room air temperature of 20 degree Celsius. The forced convection heat transfer coefficient is 355W/(m2K). Determine the required surface area of the fins. ANSWER IN m2
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Physics
3 years
2021-08-19T18:23:12+00:00
2021-08-19T18:23:12+00:00 1 Answers
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Answer:
Explanation:
Amount of heat to be removed,
Change in temperature,
The room air temperature,
The forced convection heat transfer coefficient, h = 355 W/(m²K)
Required surface area of the fins, A = ?
Given all the above parameters, the surface area of the fins is given by the formula: