A wall is constructed with two layers of sheetrock (k = 0.10 Btu/hr.ft.°F), each 0.6 inch thick, which is a type of plasterboard consisting of two layers of thick paper separated by a layer of gypsum, laid by 7 inches. The arrangement of the layers of this material is shown in the image below. Spaces between sheetrock are filled with fiberglass insulation (k = 0.020 Btu/hr.ft. °F). Determine the thermal resistance of the wall with this arrangement. If the outside temperature of the sheetrock on the left is 340 °F and the outside temperature on the right of the sheetrock layer is 100 °F, determine the rate of heat flow through this layer. Sheetrock Fiberglass insulation 0.6 in 7 in 0.6 in
A wall is constructed with two layers of sheetrock (k = 0.10 Btu/hr.ft.°F), each 0.6 inch thick, which is a type of plasterboard consisting of two layers of thick paper separated by a layer of gypsum, laid by 7 inches. The arrangement of the layers of this material is shown in the image below. Spaces between sheetrock are filled with fiberglass insulation (k = 0.020 Btu/hr.ft. °F). Determine the thermal resistance of the wall with this arrangement. If the outside temperature of the sheetrock on the left is 340 °F and the outside temperature on the right of the sheetrock layer is 100 °F, determine the rate of heat flow through this layer. Sheetrock Fiberglass insulation 0.6 in 7 in 0.6 in
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Transcribed Image Text:A wall is constructed with two layers of sheetrock (k = 0.10 Btu/hr.ft.°F), each 0.6 inch thick, which is
a type of plasterboard consisting of two layers of thick paper separated by a layer of gypsum, laid by 7
inches. The arrangement of the layers of this material is shown in the image below. Spaces between
sheetrock are filled with fiberglass insulation (k = 0.020 Btu/hr.ft. °F). Determine the thermal resistance
of the wall with this arrangement. If the outside temperature of the sheetrock on the left is 340 °F and
the outside temperature on the right of the sheetrock layer is 100 °F, determine the rate of heat flow
through this layer.
Sheetrock
Fiberglass
insulation
0.6 in
7 in
0.6 in
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