The thermoelastic stresses in the walls of a reactor housing with internal sources of heat in nonstationary states

Abstract

In nonstationary processes, the thermoelastic stresses arising at various critical points and parts of a reactor, working over a wide range of change in heat load, can exceed the stresses arising under stationary conditions. Therefore, to ensure reliable operation with changing loads, the rate at which these processes takes place should be limited. The geometric form of a number of the critical points may be reduced to the two usual configurations of plane and cylindrical walls. By solving the nonstationary heat conduction problem for plane and cylindrical reactor walls with internal heat sources, comparative results have been obtained for the thermoelastic stresses arising in walls of this sort during transitional processes.