Find the rate of heat loss per sq meter per hour and interface temperatures 15. A furnace walls made up of three layers , one of fire brick, one of insulating brickand one of red brick. The inner and outer surfaces are at 870° C and 40° C respectively.The respective co- efficient of thermal conduciveness of the layer are 1.0, 0.12 and 0.75W/mK and thicknesses are 22 cm, 7.5, and 11 cm. assuming close bonding of the layer attheir interfaces, find the rate of heat loss per sq.meter per hour and the interfacetemperatures.

GIVEN DATA; Composite wall (without convection) L1=22×10-2 mk1=1W/mKL2=7.5×10-2mk2=0.12…

Answered: Find the rate of heat loss per sq meter…

Engineering

Mechanical Engineering

Find the rate of heat loss per sq meter per hour and interface temperatures

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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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

Find the rate of heat loss per sq meter per hour and interface temperatures

15. A furnace walls made up of three layers , one of fire brick, one of insulating brick
and one of red brick. The inner and outer surfaces are at 870° C and 40° C respectively.
The respective co- efficient of thermal conduciveness of the layer are 1.0, 0.12 and 0.75
W/mK and thicknesses are 22 cm, 7.5, and 11 cm. assuming close bonding of the layer at
their interfaces, find the rate of heat loss per sq.meter per hour and the interface
temperatures.

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