Ten circular fins of uniform cross section, D=15mm, and a length of 75mm, are attached to a 1m2 wall with surface temperature of 375o The fins are made of a material with k=240W/mK. It is exposed to ambient air at 20oC with a convective heat transfer coefficient 75W/m2K. Use the approximation to change a convective tip to an adiabatic tip.Use equations from table 3-3 (p. 177) and equation 3-69 through 3-78 to determine:Temperature at the end of the pin.Heat transfer from the fin.Fin efficiency.Individual fin effectiveness.Overall fin effectiveness.

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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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Ten circular fins of uniform cross section, D=15mm, and a length of 75mm, are attached to a 1m² wall with surface temperature of 375^o The fins are made of a material with k=240W/mK. It is exposed to ambient air at 20^oC with a convective heat transfer coefficient 75W/m²K. Use the approximation to change a convective tip to an adiabatic tip.

Use equations from table 3-3 (p. 177) and equation 3-69 through 3-78 to determine:

Temperature at the end of the pin.
Heat transfer from the fin.
Fin efficiency.
Individual fin effectiveness.
Overall fin effectiveness.

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