Early Design Method to Improve Shading Device Efficiency:The Solar Coupling Index

作     者：Jorge Hernán Salazar Trujillo 

作者机构：Facultad de ArquitecturaUniversidad Nacional de ColombiaCalle 59 A N 63-20 Bl 24MedellínC.P.050034Colombia 

出 版 物：《Journal of Civil Engineering and Architecture》 (土木工程与建筑（英文版）)

年 卷 期：2019年第13卷第6期

页      面：390-400页

学科分类：08[工学] 0813[工学-建筑学] 0814[工学-土木工程] 

主　　题：Shadow efficiency shading device solar control diffuse lighting shadow desirability 

摘      要：To reduce solar gains,regions of the sky dome are masked,where the solar path will pass in the moments in which the shade will be *** these regions masked by the shadow devices could also provide diffuse lighting,reducing the need for daytime artificial *** a shadow device is perfectly designed it does not mask more sky than necessary avoiding unwanted solar *** the early stages of architectural design many decisions that will affect the project’s energy efficiency have not yet been made and information is lacking to carry out realistic energy or daylighting *** objective was to define an index to qualify,from minimum input data,the effectiveness of a shaded opening by maximizing the visibility to the sky while minimizing undesirable unshaded solar *** basic 3D models and AutoLISP algorithms,it was possible to calculate the aforementioned *** results demonstrate that similar shadow devices present variable Solar Coupling Indices,explaining why the pre-design of an efficient shadow device is an unintuitive *** method allows quantifying the gap between the best solar performance achievable and the performance achieved by a specific solar control device,helping to increase the energy efficiency of the architectural enclosures from the early design stages.