Hot roof is one of the causes that contributed to the rise of temperature of indoor spaces in single-storey house. Relate the process of heat being generated in the roof and transferred to indoor condition by the THREE (3) methods of heat transfer. (d)

Hot roof is one of the causes that contributed to the rise of temperature of indoor spaces in single-storey house. Relate the process of heat being generated in the roof and transferred to indoor condition by the THREE (3) methods of heat transfer. (d)

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 parts and label (A) & (B) Solve carefully! Question : The roof of a car in a parking lot absorbs a solar radiant flux of 600 W/m2, while the underside is perfectly insulated. The convection coefficient between the roof and the ambient air is 15 W/m2.K and the roof’s surface emissivity is 0.5. If the ambient air temperature is 25C, answer the following questions: PART (A) Neglecting radiation heat transfer, find the temperature of the roof under steady state conditions. Part ( B) Neglecting convective heat transfer, find the steady state temperature of the roof [Tsur =0]?
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Name the processes by which heat can be transferred from one place to another. Which one does not require a medium?
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