Q2/ A hot surface at 100 C is to be cooled by attaching 27778 copper fins (k-237 w/m.K), 3 cm long for each fin, 0.25 cm dia. to it. Temp. of surrounding air is 30 C and h =35 w/m2.K on the surface. Calculate the heat rate from the surface for a 1m X im section of the plate. Also, determine the effectiveness of the fins.

Q2/ A hot surface at 100 C is to be cooled by attaching 27778 copper fins (k-237 w/m.K), 3 cm long for each fin, 0.25 cm dia. to it. Temp. of surrounding air is 30 C and h =35 w/m2.K on the surface. Calculate the heat rate from the surface for a 1m X im section of the plate. Also, determine the effectiveness of the fins.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.10P: 3.10 A spherical shell satellite (3-m-OD, 1.25-cm-thick stainless steel walls) re-enters the...

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Q2/ A hot surface at 100 C is to be cooled by attaching 27778 copper fins (k=237
w/m.K), 3 cm long for each fin, 0.25 cm dia. to it. Temp. of surrounding air is 30 C
and h=35 w/m2.K on the surface. Calculate the heat rate from the surface for a 1m
X im section of the plate. Also, determine the effectiveness of the fins.

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