A
longitudinal fin of
rectangular profile
of width
L
=
7 c
m is cooled by forced air at
43
°C
with a velocity
of 2.
4
m/s as shown in Figure P2.1. The fin base temperature is at 1
1
0
°C
. The fin
is required to have a mass of
12
g
ram
of aluminum, which has the d
ensity of
2770
kg/m
3
and the thermal conductivity is 174 W/mK. (a)
Determine the convection heat
Sample Solution