A garment is rated at 150 F for ironing. An iron is set at 200 W. Is this setting appropriate? Assume heat flows primarily from the surface for ironing, having an area of A iron = 0.4 ft 2 . Other...

A garment is rated at 150 F for ironing. An iron is set at 200 W. Is this setting appropriate? Assume heat flows primarily from the surface for ironing, having an area of
A_iron

= 0.4 ft². Other data include
h
= 10 Btu/ft²
·h·F and
T_ambient

= 70 F.

As shown in the figure, two plates made of the same material and having constant
k
are exposed on one side to hot water at
T_w

and
h_w

and on the other to cold air at
T_a

and
h_a
. Using the direction of the-axis as shown, write the boundary condition at a)
 = 0 and b)
=
L
for each case.