KNOWN: Thickness of basement wall. Inner and outer wall temperatures. Thermal conductivity of aerated concrete. FIND: Thickness of polystyrene insulation needed to reduce heat flux through the stone mix concrete wall to that of the aerated concrete wall. Lost annual rental income associated with specification of the stone mix concrete wall. SCHEMATIC: To=0°C T₁ = 20°C Aerated concrete L = 200 mm L = 200 mm To q" q" T₁ Polystyrene Stone mix concrete

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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KNOWN: Thickness of basement wall. Inner and outer wall temperatures. Thermal conductivity of
aerated concrete.
FIND: Thickness of polystyrene insulation needed to reduce heat flux through the stone mix concrete
wall to that of the aerated concrete wall. Lost annual rental income associated with specification of the
stone mix concrete wall.
SCHEMATIC:
To=0°C
T₁ = 20°C
Aerated
concrete
L = 200 mm
L = 200 mm
To
q"
q"
T₁
Polystyrene
Stone mix
concrete
Transcribed Image Text:KNOWN: Thickness of basement wall. Inner and outer wall temperatures. Thermal conductivity of aerated concrete. FIND: Thickness of polystyrene insulation needed to reduce heat flux through the stone mix concrete wall to that of the aerated concrete wall. Lost annual rental income associated with specification of the stone mix concrete wall. SCHEMATIC: To=0°C T₁ = 20°C Aerated concrete L = 200 mm L = 200 mm To q" q" T₁ Polystyrene Stone mix concrete
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