Heat conduction through the bottom section of a steel pan that is used to boil water on top of an
electric range is considered (Fig. P2-45). Assuming constant thermal conductivity and one-dimensional
heat transfer, the mathematical formulation (the differential equation and the boundary conditions) of this
heat conduction problem is to be obtained for steady operation.
Assumptions 1 Heat transfer is given to be steady and one-dimensional. 2 Thermal conductivity is given to
be constant. 3 There is no heat generation in the medium. 4 The top surface at x = L is subjected to
convection and the bottom surface at x = 0 is subjected to uniform heat flux.