Chapter 29, Problem 16P

Use the control-volume approach and derive the node equation for node $\left(2,2\right)$ in Fig. 29.13 and include a heat source at this point. Use the following values for the constants: $\Delta z=0.25\text{ cm}$, $h=10\text{ cm},k_A=0.25\text{W/cm}\cdot \text{C and }{k}_B=0.45\text{W/cm}\cdot \text{C}$. The heat source comes only from material A at the rate of $=56{\text{ W/cm}}^{\text{3}}$.