Page 12 - Demo

Figure 4.Plan of the buildingmodeledTable 3.Specifications ofmaterials of elementsin the DesignBuildersoftwareElements Specifications of materialsHeat transfercoefficient (W/m2K)Outer walls 100 mm Brickwork outer %u00fe 79 mm Extrudedpolystyrene %u00fe 100 mm Concrete block0.35Ceiling 19 mm Asphalt %u00fe 13 mm fiberboard %u00fe 122 mm Extrudedpolystyrene0.25Floor 30 mm Timber flooring %u00fe 70 mm Floor screed %u00fe 100 mmCast concrete %u00fe 59.6 mm Formaldehyde foam0.46Windows Triple layers %u00fe Argon 13 mm (Window gas type) 1.635Entrance door 35 mm Wooden door 2.823Table 4.Input data to theDesignBuildersoftwareNo. of residents 4 persons Coefficient of performance (Cop)of the cooling system0.45Use Residential Cop of the heating system 0.85Building dimensions (m) 8*12.5*3 External wall heat transfercoefficient0.35 (W/m2K)Plan elongation East-West Ceiling heat transfer coefficient 0.25 (W/m2K)The building orientation,panels and collectorsSouth Floor heat transfer coefficient 0.46 (W/m2K)WWR (window to wallratio)20% Window heat transfer coefficient 1.635 (W/m2K)Lighting rate 300 Lux Door heat transfer coefficient 2.823 (W/m2K)Heating set temperature 20%u00b0C Air penetration rate 1.8 AC/HCooling set temperature 26%u00b0C Heater set temperature 65 %u00b0CZero-energyresidentialbuilding