Nnnnsolar control shading devices pdf

An external shading device requires many design consideration such as solar geometry, physical dimension of the elements, materials, finishes, control strategies, and aesthetics. 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. Shading devices offer the opportunity of differentiating one building facade from another. This paper presents a methodology for detailed daylighting numerical simulation of an office space with an advanced window system and calculation of dimming levels. Movable louvers can be installed in any orientation for shading of any face. They may be controlled manually or with sun tracking controls. Optimal control methods for pv integrated shading devices. There are many different reasons to want to control the amount of sunlight that is admitted into a building. There is also a need for specific guidance for the selection and design of shading device systems.

Pvintegrated shading devices pvis have the potential to provide multiple benefits to buildings. Need for shading when ambient temperatures are within or above the comfort zone, any ingress of solar radiation will contribute to discomfort. 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. 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. Windows may contain several elements including shading devices. Modelling of sun shading devices and shading control. Sun control and shading devices wbdg whole building design. Sun control and shading devices wbdg whole building.

External shading devices are a passive design strategy to control solar heat gain in buildings, and influences energy performance. The use of sun control and shading devices is an important aspect of many energyefficient building design strategies. Pdf one method used to control the amount of sun coming through a window is the provision of appropriate shading devices. They can be any mechanical equipment like dynamic facades, projections chajja, cantilevers, louvres, fins, jaalis.

The design of these elements reflects various functions including thermal control. Pdf solar control and shading strategies for double skin. Sun shading devices inhibit the solar radiation block, allow, etc. View the article pdf and any associated supplements and figures for a period of 48 hours. Tyges of shading devices design of shading devices overheated and underheated periods use of sunpath diagrams the shadow angle protractor examples of shading devices. Energy and daylighting interaction in offices with shading devices. Pdf an overview on solar shading systems for buildings. This can provide interest and human scale to an otherwise undistinguished design. Comparison of control strategies for shading devices window works.