A total of 10 rectangular aluminum fins (k = 203 W/m-K) are placed on the outside flat surface of an electronic device. Each fin is 100 mm wide, 20 mm high and 4 mm thick. The fins are located parallel to each other at a center-to center distance of 8 mm. The temperature at the outside surface of the electronic device is 60°C. The air is at 20°C, and the heat transfer coefficient is 100 W/m? ‘K. Determine (a) the rate of heat loss from the electronic device to the surrounding air and (b) the fin effectiveness. A total of 10 rectangular aluminum fins (k = 203W/m-K) are placed on the outside flat surface of anelectronic device. Each fin is 100 mm wide, 20 mmhigh and 4 mm thick. The fins are located parallel toeach other at a center-to center distance of 8 mm.The temperature at the outside surface of theelectronic device is 60°C. The air is at 20°C, and theheat transfer coefficient is 100 W/m2 K. Determine(a) the rate of heat loss from the electronic device tothe surrounding air and(b) the fin effectiveness.

Let us draw the figure of the flat surface of the aluminum fins Corrected fin length, Lc=L+t2 Where…

Answered: A total of 10 rectangular aluminum fins…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A total of 10 rectangular aluminum fins (k = 203 W/m-K) are placed on the outside flat surface of an electronic device. Each fin is 100 mm wide, 20 mm high and 4 mm thick. The fins are located parallel to each other at a center-to center distance of 8 mm. The temperature at the outside surface of the electronic device is 60°C. The air is at 20°C, and the heat transfer coefficient is 100 W/m? ‘K. Determine (a) the rate of heat loss from the electronic device to the surrounding air and (b) the fin effectiveness.

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