A furnace wall is to be constructed of brick having standard dimensions of 22.5 cm 11

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A furnace wall is to be constructed of brick having standard dimensions of 22.5 cm × 11 cm × 7.5 cm Two kinds of material are available. One has a maximum usable temperature of 1040°C and a thermal conductivity of 1.7 W/(m K), and the other has a maximum temperature limit of 870°C and a thermal conductivity of 0.85 W/(m K). The bricks have the same cost and are laid in any manner, but we wish to design the most economical wall for a furnace with a temperature of 1040°C on the hot side and 200°C on the cold side. If the maximum amount of heat transfer permissible is 950 W/m2, determine the most economical arrangement using the available bricks.

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Related Book For  answer-question

Principles Of Heat Transfer

ISBN: 9781305387102

8th Edition

Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn

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