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Calculate the overall transmittance for the roof shown below; does this roof meet Bahrain's regulations, 0.3 W/m².0? What can be done to enhance the performance of this roof?

Calculate the overall transmittance for the roof shown below; does this roof meet Bahrain's regulations, 0.3 W/m².0? What can be done to enhance the performance of this roof?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Calculate the overall transmittance for the roof shown below, does this roof meet Bahrain's regulations, 0.3 W/m².0? What can be done to enhance the performance of this roof? Concrete layer 50 mm. Thick. Polyurethane 35 mm. thick Hollow core slab 150 mm. thick. k=1.45 W/m. C k=0.024 W/ m."C = 1.25W/m:0 Surface resistance (Keat flow) R R Rai Direction of Flow Wall m²KW Roof m²KW 0.121 0.166 0.059 0.059 for cavity between 5-20mm 0.1.1- if cavity >20mm 0.18
Transcribed Image Text:Calculate the overall transmittance for the roof shown below, does this roof meet Bahrain's regulations, 0.3 W/m².0? What can be done to enhance the performance of this roof? Concrete layer 50 mm. Thick. Polyurethane 35 mm. thick Hollow core slab 150 mm. thick. k=1.45 W/m. C k=0.024 W/ m."C = 1.25W/m:0 Surface resistance (Keat flow) R R Rai Direction of Flow Wall m²KW Roof m²KW 0.121 0.166 0.059 0.059 for cavity between 5-20mm 0.1.1- if cavity >20mm 0.18
Calculate the overall transmittance for the wall shown below, does this wall meet Bahrain's regulations 0.57 W/m².C 12 mm outside plaster, k 0.75 200 mm Hollow blocks, k 0.885 45 mm polystyrene, k 0.03 12 mm inside plaster, k 0.75 Surface resistance (Heat flow) Ru Rair Direction of Flow Wall m²KW 0.121 -0.059- Roof m²KW :0.166 :0:059 for cavity between 5-20mm 0.11-if cavity >20mm 0.18
Transcribed Image Text:Calculate the overall transmittance for the wall shown below, does this wall meet Bahrain's regulations 0.57 W/m².C 12 mm outside plaster, k 0.75 200 mm Hollow blocks, k 0.885 45 mm polystyrene, k 0.03 12 mm inside plaster, k 0.75 Surface resistance (Heat flow) Ru Rair Direction of Flow Wall m²KW 0.121 -0.059- Roof m²KW :0.166 :0:059 for cavity between 5-20mm 0.11-if cavity >20mm 0.18
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