An electrically heated plate 15cm high and 10cm wide is maintained at 140°C. Estimate the rate of heat dissipation from both sides of the plate in an atmospheric at 20° C, if the radiation heat transfer co-efficient is 8.72W /m² -K. For air at the mean temperature of 80°C; Take kinematic viscosity= 21.09x10 m² /s, Pr 0.692, and k = 0.0305 W/m-K.

An electrically heated plate 15cm high and 10cm wide is maintained at 140°C. Estimate the rate of heat dissipation from both sides of the plate in an atmospheric at 20° C, if the radiation heat transfer co-efficient is 8.72W /m² -K. For air at the mean temperature of 80°C; Take kinematic viscosity= 21.09x10 m² /s, Pr 0.692, and k = 0.0305 W/m-K.

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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Question

An electrically heated plate 15cm high and 10cm wide is maintained at140°C. Estimate the
rate of heat dissipation from both sides of the plate in an atmospheric at 20°C, if the radiation
heat transfer co-efficient is 8.72W / m² – K. For air at the mean temperature of 80°C; Take
kinematic viscosity= 21.09x10 m² /s, Pr 0.692, and k = 0.0305 W/m-K.

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