13.38 A row of regularly spaced, cylindrical heating ele- ments is used to maintain an insulated furnace wall at 500 K. The opposite wall is at a uniform temperature of 300 K. 20 mm Wall, 300 K 10 mm Heating element Insulated wall, 500 K The insulated wall experiences convection with air at 450 K and a convection coefficient of 200 W/m².K. Assuming the walls and elements are black, estimate the required operating temperature for the elements.

13.38 A row of regularly spaced, cylindrical heating ele- ments is used to maintain an insulated furnace wall at 500 K. The opposite wall is at a uniform temperature of 300 K. 20 mm Wall, 300 K 10 mm Heating element Insulated wall, 500 K The insulated wall experiences convection with air at 450 K and a convection coefficient of 200 W/m².K. Assuming the walls and elements are black, estimate the required operating temperature for the elements.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.54P

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