Please show all your work!! As an engineer, you will usually be expected to be a

Question

Please show all your work!! As an engineer, you will usually be expected to be able to justify assumptions made during the analysis. Since the reason for making the assumption in the first place was to simplify the analysis and save time, the justification should not be long and involved. Certainly, the solution to the simplified problem plus any justification necessary should be more economical in time than the solution to the original problem would have been. In the electrode problem, it was assumed that the temperature was uniform at any cross-section of the rod. How valid is this assumption? One possible approach would be to make an estimate of the maximum temperature difference between the center of the rod and the outside surface by assuming that the radial temperature distribution is linear. The slope can be found by equating the convective heat-transfer rate at any given axial position to the radial conduction rate at the same position. This could then be compared with the difference in temperature between the rod surface and the ambient. What conclusions can you come to? Data: D = 0.5 ft k = 63 Btu/(hr degree F-ft) h = 0.3 Btu/(hr degree F-ft^2)

Explanation / Answer

Temperature is uniform the thermal conductivity of the material is also uniform and process will isothermal and steady state process.as the temperature is uniform the heat generation will also uniform.

Temperature will maximum at the centre of the rod .

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