Radioactive waste (krw = 6 W/m-K) is stored in a spherical, stainless steel (kss = 15 W/m-K) container of inner and outer radii equal to ri = 0.5 m and ro = 0.6 m; the inner core of the container is filled to capacity with waste. Heat is generated volumetrically within the waste at a uniform rate of 105 W/m3 , and the outer surface of the container is exposed to a water flow for which h = 825 W/m2 -K and T = 35o C1. Evaluate the steady state outer surface temperature, Ts, o. 2. Evaluate the steady state inner surface temperature, Ts, i .

3. Obtain an expression for the temperature distribution, T(r), in the radioactive wastes. Express your result in terms of ri, Ts, i, krw and q. Evaluate the temperature at r = 0.