A $3-m-$high and $5-m-$wide wall consists of long $16-cm22-cm$ cross section horizontal bricks $($

$\{$:$C))$ separated by $3-cm-$thick plaster layers $(k=0\mathrm{.}22\frac{W}{mC}).$ There are also $2-$ cm $-$thick plaster layers

on each side of the brick and a $3-$cm$-$thick rigid foam $(k=0\mathrm{.}026\frac{W}{mC})$ on the inner side of the wall,

as shown in the figure. The indoor and the outdoor temperatures are $20C$ and $10C,$ and the convection

heat transfer coefficients on the inner and the outer sides are $h_1=10\frac{W}{m^{2}C}$ and $h_2=25\frac{W}{m^{2}C},$

respectively. Assuming one$-$dimensional heat transfer and disregarding radiation, determine the rate of

heat transfer through the wall. Answer $Q=263W.$