A cylindrical stone mix concrete beam of diameter D0.5 m
Chapter 5, Problem 5.65(choose chapter or problem)
A cylindrical stone mix concrete beam of diameter D?0.5 m initially at Ti?20C is exposed to hot gases at T??500C. The convection coefficient is h?10 W/m2?K.(a) Determine the centerline temperature of the beamafter an exposure time of t?6h.(b) Determine the centerline temperature of a secondbeam that is of the same size and exposed to the sameconditions as in part (a) but fabricated of lightweightaggregate concrete with density ??1495 kg/m3,thermal conductivity k?0.789 W/m?K, and specificheat cp?880 J/kg?K
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