A row of regularly spaced, cylindrical heating ele-ments
Chapter 13, Problem 13.38(choose chapter or problem)
A row of regularly spaced, cylindrical heating ele-ments is used to maintain an insulated furnace wall at500 K. The opposite wall is at a uniform temperatureof 300 K.The insulated wall experiences convection with air at450 K and a convection coefficient of 200 W/m2?K.Assuming the walls and elements are black, estimatethe required operating temperature for the elements.
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