The 150-mm-thick wall of a gas-fired furnace is
Chapter 5, Problem 5.51(choose chapter or problem)
The 150-mm-thick wall of a gas-fired furnace is con-structed of fireclay brick (k?1.5 W/m?K, ??2600kg/m3, cp?1000 J/kg?K) and is well insulated at itsouter surface. The wall is at a uniform initial tempera-ture of 20C, when the burners are fired and the innersurface is exposed to products of combustion for whichT??950C and h?100 W/m2?K.(a) How long does it take for the outer surface of thewall to reach a temperature of 750C?(b) Plot the temperature distribution in the wall at theforegoing time, as well as at several intermediatetimes.
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