he aluminum fins (k= 240 W/m.K) have been placed on one side of an electronic device (100 fins per meter) seen in figure. The natural convection occurs between the finned surfaces and surrounding. Convective heat transfer coefficient is 35 W/m2.K on this condition. The base temperature of the electronic device and surrounding are 108,16 oC and 27,54 oC, respectively. Determine the increase in the rate of heat transfer [W] of the finned wall compared to the bare wall.
he aluminum fins (k= 240 W/m.K) have been placed on one side of an electronic device (100 fins per meter) seen in figure. The natural convection occurs between the finned surfaces and surrounding. Convective heat transfer coefficient is 35 W/m2.K on this condition. The base temperature of the electronic device and surrounding are 108,16 oC and 27,54 oC, respectively. Determine the increase in the rate of heat transfer [W] of the finned wall compared to the bare wall.
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 aluminum fins (k= 240 W/m.K) have been placed on one side of an electronic device (100 fins per meter) seen in figure. The natural convection occurs between the finned surfaces and surrounding. Convective heat transfer coefficient is 35 W/m2.K on this condition. The base temperature of the electronic device and surrounding are 108,16 oC and 27,54 oC, respectively. Determine the increase in the rate of heat transfer [W] of the finned wall compared to the bare wall.
Transcribed Image Text:Fin
100 fins
1 m
Insulation
t = 0.25 cm
2.5 cm
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Step 1: Given data
VIEWStep 2: Calculating the basic parameters
VIEWStep 3: Calculating the Heat Transfer Rate from single Fin With Convection at End Tip
VIEWStep 4: Calculating the Area of Fins & bare walls
VIEWStep 5: Calculating the heat transfer rate from the wall without fins
VIEWStep 6: Calculating the heat transfer rate from the wall fins
VIEWStep 7: Calculating the Increase in Heat transfer Rate
VIEWStep 8: Result
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