motor body is 360 mm in diameter (outside) and 240 mm long. Its surface temperature should not exceed 55 °C when dissipating 340W. Longitudinal fins of 15 mm thickness and 40 mm height are proposed. The convection coefficient is 40W/m? °C. determine the number of fins required. Atmospheric temperature is 30°C. Thermal conductivity = 40 W/m°C. Hint: q = vkAhP Ob tanh (mL) , P=2L, A=Lt. %3D

motor body is 360 mm in diameter (outside) and 240 mm long. Its surface temperature should not exceed 55 °C when dissipating 340W. Longitudinal fins of 15 mm thickness and 40 mm height are proposed. The convection coefficient is 40W/m? °C. determine the number of fins required. Atmospheric temperature is 30°C. Thermal conductivity = 40 W/m°C. Hint: q = vkAhP Ob tanh (mL) , P=2L, A=Lt. %3D

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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PROBLEM: IVB-46 FROM THE BOOK: ENGINEERING THERMOFLUIDS, M. MASSOUD.