Question

Problem 4 Radioactive wastes are packed in a long, thin-walled cylindrical container. The wastes generate thermal energy non- b) Assuming that 20% of heat leaving is by radiation (assuming h, and ) and 80% by convection. Use this result to obtain an expression for the temperature Ts of the container wall uniformly according to the relation 7 To where q is the local rate of energy generation per unit volume, do is a constant, and ro is the radius of the container. Steady-state conditions are maintained by submerging the container in a liquid that is at Te and provides a uniform convection coefficient h. a) Obtain an expression for the total rate at which energy is generated To, h in a unit length of the container.

Answer 1