A composite wall is made up of an external thickness of brickwork 110mm thick inside which is a layer of fiberglass 75mm thick. The fiberglass is faced internally by an insulating board 25mm thick. The coefficient of thermal conductivity for the three are as follows: Brickwork 1.5 W/m-K Fiberglass 0.4 W/m-K Insulating Board 0.06 W/m-K The surface transfer coefficients of the inside wall is 3.1 W/m2-K while that of the outside wall is 2.5 W/m2-K. Take the internal ambient temperature as 10°C and the external temperature as 27°C. Determine the heat loss through such wall 6m high and 10m long. (kW)

A composite wall is made up of an external thickness of brickwork 110mm thick inside which is a layer of fiberglass 75mm thick. The fiberglass is faced internally by an insulating board 25mm thick. The coefficient of thermal conductivity for the three are as follows: Brickwork 1.5 W/m-K Fiberglass 0.4 W/m-K Insulating Board 0.06 W/m-K The surface transfer coefficients of the inside wall is 3.1 W/m2-K while that of the outside wall is 2.5 W/m2-K. Take the internal ambient temperature as 10°C and the external temperature as 27°C. Determine the heat loss through such wall 6m high and 10m long. (kW)

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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A composite wall is made up of an external thickness of brickwork 110 mm thick inside which is a layer of fiberglass 75 mm thick. The fiberglass is faced internally by an insulating board 25 mm thick. The coefficients of thermal conductivity are as follow: Brickwork 1.5 W/m-K Fiberglass 0.04 W/m-K Insulating board 0.06 W/m-K The surface transfer coefficients of the inside wall is 3.1 W/m²-K while that of the outside wall is 2.5 W/m²-K. Take the internal ambient temperature as 10°C and the external temperature is 27°C. Determine the heat loss through such wall 6m high and 10 m long. Badly needed asap. I will rate helpful. Thank you in advance.
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