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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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Transcribed Image Text:4. The blackbody emission from the surface can be linearized about some
reference temperature To. oT -oT + 40 T (T, – T)+……. And the sensible
cooling of the surface can be written as SH = c,pC,U(T, - T,)+….
Calculate and compare the rates at which longwave emission and sensible
heat flux vary with surface temperature, T,. In other words, if the surface
temperature rises by 1°C, by how much will the longwave and sensible
cooling increase? Assume that To = 288 K, T, is fixed, p = 1.2 kg m3,
Cp = 1004 J kgK, Cp = 2 x 10-3, and U = 5 ms.
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