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The surface temperature of the hot side of the furnace wall is 1200 degrees C. It is desired to maintain the outside of the wall at 38 degrees C. A 152 mm of refractory silica is used adjacent to the combustion chamber and 10 mm of steel covers the outside. What thickness of insulating bricks is necessary between refractory and steel, if the heat loss should be kept at 788 W/m2? Use k=13.84 W/m-K for refractory silica; 0.15 for insulating brick, and 45 for steel.

The surface temperature of the hot side of the furnace wall is 1200 degrees C. It is desired to maintain the outside of the wall at 38 degrees C. A 152 mm of refractory silica is used adjacent to the combustion chamber and 10 mm of steel covers the outside. What thickness of insulating bricks is necessary between refractory and steel, if the heat loss should be kept at 788 W/m2? Use k=13.84 W/m-K for refractory silica; 0.15 for insulating brick, and 45 for steel.

Elements Of Electromagnetics
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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The surface temperature of the hot side of the furnace wall is 1200
degrees C. It is desired to maintain the outside of the wall at 38 degrees C. A
152 mm of refractory silica is used adjacent to the combustion chamber and
10 mm of steel covers the outside. What thickness of insulating bricks is
necessary between refractory and steel, if the heat loss should be kept at
788 W/m2? Use k=13.84 W/m-K for refractory silica; 0.15 for insulating brick,
and 45 for steel.

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