DETERMINING FURNACE-WALL HEAT LOSS


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<emphasis role="italic"><emphasis role="bold">DETERMINING FURNACE-WALL HEAT LOSS</emphasis></emphasis>
<emphasis role="italic"><emphasis role="bold">DETERMINING FURNACE-WALL HEAT LOSS</emphasis></emphasis>A furnace wall consists of 9-in (22.9-cm) thick fire brick, 4.5-in (11.4-cm) Sil-O-Cel brick, 4-in (10.2-cm) red brick, and 0.25-in (0.64-cm) transite board. The thermal conductivity, k, values, Btu/(ft 2)(°F)(ft) [kJ/(m 2)(°C)(m)] are as follows: 0.82 at 1800°F (982°C) for fire brick; 0.125 at 1800°F (982°C) for Sil-O-Cel; 0.52 at 500°F (260°C) for transite. A temperature of 1800°F (982°C) exists on the inside wall of the furnace and 200°F (93.3°C) on the outside wall. Det…
Citation
Tyler G. Hicks: Handbook of Mechanical Engineering Calculations, Second Edition. DETERMINING FURNACE-WALL HEAT LOSS, Chapter (McGraw-Hill Professional, 2006 1998), AccessEngineering Export