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 = 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.
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.
Transcribed Image Text: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/m2 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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