Answered: Two volumes of air are separated by a…

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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Two volumes of air are separated by a thin rectangular heater (0.2 cm x 15 cm x 2 cm). The volumetric heat generation associated with the heater is 350 kW/m3. What is the temperature of the heater at steady state? The air in the bottom chamber is at (TB = 20 °C, hB = 15 W/m2.K) while the air in the top chamber is at (TT = 55 °C, hT = 9 W/m2K). hint: for such thin application, we shall assume the same surface temperature on both sides of the heater.

Top
TT = 55°C
h = 9 W/m?.K
Heater
q_dot = 100 kw/m3
V= 6 cm?
Bottom
Tg = 20°C
he = 15 W/m?.K

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