Question

Heat transfer

Consider a spherical container of inner radius r1, outer radius r2, and thermal

conductivity k. Express the boundary condition on the inner surface of the

container for steady one-dimensional conduction for the following cases:

(i) specified temperature of 50°C,

[2 Marks]

(ii) specified heat flux of 45 W/m2

 toward the center,

[2 Marks]

(iii) convection to a medium at T∞ with a heat transfer coefficient of h.

[2 Marks]

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