An Experimental and Numerical Analysis of Daylighting Performance for an Office Building  

作　　者：GiorgiaNardini Massimo Paroncini 

机构地区：[1]DIISM Department of Industrial Engineering and Mathematical Sciences, Universit3 Politecnica of Marche, Ancona 60100, Italy

出　　处：《Journal of Energy and Power Engineering》2013年第6期1040-1046,共7页能源与动力工程（美国大卫英文）

摘　　要：The urgency of increasing energy efficiency in new building design and retrofits has pushed lighting simulation to play a central role in sustainable lighting design. The shape of the building and its orientation, the reflectances of building surfaces and glazed areas are important parameters in the daylighting design of buildings. Glazing systems can cut energy consumption and associated pollution sources, reduce peak demand, enhance daylighting performance and improve occupant comfort. This paper presents the results of a numerical and experimental comparison between the performances of an office building with and without external sunscreens. The aim was to analyse the illuminance distribution and some investigations have also been made with regards to the effect on daylight in rooms when sunscreens are used. The experimental results were obtained using an office building scale model and sky simulator. The numerical results were obtained through radiance, the ray-tracing program, to accurately predict the light levels and produce photo realistic images of the architectural space in all sky conditions： Illuminance values were obtained respectively through reference point measurements. The daylighting performances of the office building model with and without the sunscreens have been compared and analysed.

关 键 词：DAYLIGHTING office building SUNSCREEN artificial sky radiance. 

分 类 号：TU243[建筑科学—建筑设计及理论] S625.2[农业科学—园艺学]