A thick oak wall, initially at 25°C, is suddenly exposed to combustion products for which T = 800°C and h = 20 W/m².K. Determine the time of exposure required, in s, for the surface to reach the ignition temperature of 400°C. Evaluate the properties of the oak (cross grain) at 300 K. t = S

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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800°C and h = 20 W/m².K. Determine
A thick oak wall, initially at 25°C, is suddenly exposed to combustion products for which T
the time of exposure required, in s, for the surface to reach the ignition temperature of 400°C. Evaluate the properties of the oak
(cross grain) at 300 K.
t =
i
S
=
Transcribed Image Text:800°C and h = 20 W/m².K. Determine A thick oak wall, initially at 25°C, is suddenly exposed to combustion products for which T the time of exposure required, in s, for the surface to reach the ignition temperature of 400°C. Evaluate the properties of the oak (cross grain) at 300 K. t = i S =
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