Nnnnsolar control shading devices pdf

External shading devices are a passive design strategy to control solar heat gain in buildings, and influences energy performance. There are many different reasons to want to control the amount of sunlight that is admitted into a building. They may be controlled manually or with sun tracking controls. They can be any mechanical equipment like dynamic facades, projections chajja, cantilevers, louvres, fins, jaalis.

An external shading device requires many design consideration such as solar geometry, physical dimension of the elements, materials, finishes, control strategies, and aesthetics. This can provide interest and human scale to an otherwise undistinguished design. The design of these elements reflects various functions including thermal control. View the article pdf and any associated supplements and figures for a period of 48 hours. Optimal control methods for pv integrated shading devices. Modelling of sun shading devices and shading control. Sun shading devices inhibit the solar radiation block, allow, etc. Sun control and shading devices wbdg whole building design. Solar shading control strategy for office buildings in. Tyges of shading devices design of shading devices overheated and underheated periods use of sunpath diagrams the shadow angle protractor examples of shading devices. Pvintegrated shading devices pvis have the potential to provide multiple benefits to buildings. Comparison of control strategies for shading devices window works. Solar geometry the sun rises in the east and sets in the. Windows may contain several elements including shading devices.

Pdf one method used to control the amount of sun coming through a window is the provision of appropriate shading devices. This paper presents the results of a project funded by the swiss federal office for energy that focused on the effective use of movable shading devices in offices, and on the impact on the indoor. Energy and daylighting interaction in offices with shading devices. The objective of the present study was to develop a realistic solar shading control strategy for office buildings in cold climate with focus on low energy use and. In cases of 30, 60 and 90degree angle of horizontal shading devices, the air temperature of an exterior facing sides air cavity was greater than that of vertical shading devices. In winter such a device, however, cannot stop direct rays from the. There is also a need for specific guidance for the selection and design of shading device systems. Movable louvers can be installed in any orientation for shading of any face. The use of sun control and shading devices is an important aspect of many energyefficient building design strategies. Sun control and shading devices wbdg whole building.