The addition of aluminum fins has been suggested to increase the rate of heat dissipation from one side of an electronic device 1 m wide and 1 m tall. The fins are to be rectangular in cross section, 2.5 cm long and 0.25 cm thick. There are to be 100 fins per meter. The convective heat transfer coefficient, both for the wall and the fins, is estimated at 35 W/m2K. With this information, determine the percent increase in the rate of heat transfer of the finned wall compared to the bare wall. (Note: 1. Take the base and the surrounding temperatures are 2000C and 20oC. 2. Assume convection heat transfer at the fin tip)
The addition of aluminum fins has been suggested to increase the rate of heat dissipation from one side of an electronic device 1 m wide and 1 m tall. The fins are to be rectangular in cross section, 2.5 cm long and 0.25 cm thick. There are to be 100 fins per meter. The convective heat transfer coefficient, both for the wall and the fins, is estimated at 35 W/m2K. With this information, determine the percent increase in the rate of heat transfer of the finned wall compared to the bare wall. (Note: 1. Take the base and the surrounding temperatures are 2000C and 20oC. 2. Assume convection heat transfer at the fin tip)
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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The addition of aluminum fins has been suggested to increase the rate of heat dissipation from one side of an electronic device 1 m wide and 1 m tall. The fins are to be rectangular in cross section, 2.5 cm long and 0.25 cm thick. There are to be 100 fins per meter. The convective heat transfer coefficient, both for the wall and the fins, is estimated at 35 W/m2K. With this information, determine the percent increase in the rate of heat transfer of the finned wall compared to the bare wall. (Note: 1. Take the base and the surrounding temperatures are 2000C and 20oC. 2. Assume convection heat transfer at the fin tip)
Transcribed Image Text:W
1 t= 2.5 mm
- 2.5 cm
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