The heat flux, q, is 6000 W/m² at the surface of an electrical heater. The heater temperature is 120°C when it is cooled by air at 70°C. What is the average convective heat transfer coefficient, h? What will the heater temperature be if the power is reduced so that q is 2000 W/m²?

The heat flux, q, is 6000 W/m² at the surface of an electrical heater. The heater temperature is 120°C when it is cooled by air at 70°C. What is the average convective heat transfer coefficient, h? What will the heater temperature be if the power is reduced so that q is 2000 W/m²?

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 3:
The heat flux, q, is 6000 W/m² at the surface of an electrical heater. The heater temperature is 120°C when
it is cooled by air at 70°C. What is the average convective heat transfer coefficient, h? What will the heater
temperature be if the power is reduced so that q is 2000 W/m²?
PROBLEM 4:

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