Compute and plot the steady-state temperature of the bar as

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Bus bars proposed for use in a power transmission station have a rectangular cross section of height H = 600 mm and width W = 200 mm. The electrical resistivity, ?c

(a) Assuming the bar has a uniform temperature T, calculate the steady-state temperature when a current of 60,000 A passes through the bar.

(b) Compute and plot the steady-state temperature of the bar as a function of the convection coefficient for 10 = h = 100 W/m2 · K. What minimum convection coefficient is required to maintain a safe operating temperature below 120°C? Will increasing the emissivity significantly affect this result?

Reference no: EM13582889

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