Chapter 4, Problem 92P

A thick wall made of refractory bricks $(k=1.0\text{W/m}\text{.K},\alpha =5.08\times {\text{ 10}}^{\text{-7}}{\text{m}}^{\text{2}}\text{/s)}$ and has a uniform initial temperature of 15°C. The wall surface is subjected to uniform heat flux of 20 kW/m² . Using appropriate software, investigate the effect of heating time on the temperature at the wall surface and at $x=1\text{ cm}$ and $x=5\text{ cm}$ from the surface. Let the heating time vary from 10 to 3600 s, and plot the temperatures at x = 0, 1, and 5 cm from the wall surface as a function of heating time.