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A wall is made up of an outer layer of brick, 79 mm (k = 0.65 W/m°C) followed by 41 mm layer of gypsum plaster (k = 0.45 W/m°C). It is desired to reduce the heat loss (or gain) through the wall by half, what thickness (in millimeter) of wool insulation (k = 0.065 W/m°C) should be added to the composite wall? Write your answer to two decimal places. %3D %3D %3D

A wall is made up of an outer layer of brick, 79 mm (k = 0.65 W/m°C) followed by 41 mm layer of gypsum plaster (k = 0.45 W/m°C). It is desired to reduce the heat loss (or gain) through the wall by half, what thickness (in millimeter) of wool insulation (k = 0.065 W/m°C) should be added to the composite wall? Write your answer to two decimal places. %3D %3D %3D

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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A wall is made up of an outer layer of brick, 79 mm (k = 0.65 W/m°C) followed by 41 mm layer of gypsum plaster (k = 0.45 W/m°C). It is desired to reduce the heat loss (or gain) through the wall by half, what thickness (in millimeter) of wool insulation (k = 0.065 W/m°C) should be added to the composite wall? Write your answer to two decimal places.
Transcribed Image Text:A wall is made up of an outer layer of brick, 79 mm (k = 0.65 W/m°C) followed by 41 mm layer of gypsum plaster (k = 0.45 W/m°C). It is desired to reduce the heat loss (or gain) through the wall by half, what thickness (in millimeter) of wool insulation (k = 0.065 W/m°C) should be added to the composite wall? Write your answer to two decimal places.
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