文档介绍：Solar aspects of papers
SOLAR SHADING SOLUTIONS TO SECURE SUSTAINABLE FORT AND TO REDUCE ENERGY CONSUMPTION IN BUILDINGS
IVAN POLLET1, DICK DOLMANS2, ANN VAN EYCKEN 2,
1 Renson Sunprotection,
Maalbeekstraat 10, B-8790 Waregem, Belgium
Phone: +32 (0)56 62 71 11 Fax: +32 (0)56 60 28 51
E-mail: ivan.******@
2 ES-SO, European Solar-anization,
Mobile: +32 (0)475 90 49 94
E-mail: ann.******@es-
ABSTRACT
Reducing cooling energy and preventing overheating in well-insulated and airtight buildings will e crucial to create low-energy, comfortable and healthy buildings. Several studies showed that sustainable measures in a low energy building like strict shading during the day, excessive ventilation through opened windows during the night as well as minimization of internal heat gains can drastically reduce cooling energy consumption and overheating during hot periods.
Thermal fort in passive houses without solar shading on E-S-W orientated windows will usually far from optimal. In offices, adding efficient solar shading reduces the cooling energy consumption and the installed cooling capacity with nearly 50%. In general, maximum inside air temperature at room level are reduced by 3 to 6°C when applying solar pared to non-protected windows.
One-zone models as for instance often used in EPBD calculations can not accurately predict overheating risks or cooling demands on room level. Therefore EPBD calculation methods can be misleading for architects, owners or occupants, since these calculation methods or often used as design tool.
Clear and severe requirements on preventing overheating or simulations on room level are necessary. Based on such an approach, sustainable measures as solar shading, solar control glazing, night cooling, … can be included during the design of the building, preventing the installation of mechanical cooling afterwards.
INTRODUCTION
The mission stated that energy consumption in buildings must seriously be diminishe