The thermal conductivity of a metal plate(20 w/m.k)measuringCImxlm)isTheplate it at a uniform temperature af (80°c)heat to the surrounding airwhich is at (405) and heat transkr Cefficientis (4ow/m=k) It was attended to double,the heat loss hy adding reetmguelar Lins toand lassesthe surtace, leach, fin isthe ns are(im) long (5nm) thickspaced (45 mm) Cayter to cantrtips, andNeglecting heattransfer from Rintocaleulate requircd height f fins 2

initial heat transfer = h A ∆T =40 * 1*1 * ( 80-40) =1600W

Answered: the fns are spaced (45mm) Cayter to…

the fns are spaced (45mm) Cayter to center Neglecting heat'trenster from Kin caleulate required height of fins 2 tips, and

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 3.36P

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