Development of Evaluation Method of Daylighting Duct System Considering Inner Light Flux

作     者：TOMINAGA Akihiro SUZUKI Hirotaka 

作者机构：Graduate School of Engineering Kobe University 

出 版 物：《Computer Aided Drafting,Design and Manufacturing》 (计算机辅助绘图设计与制造（英文版）)

年 卷 期：2015年第25卷第4期

页      面：1-7页

学科分类：08[工学] 081304[工学-建筑技术科学] 081404[工学-供热、供燃气、通风及空调工程] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：All of experiments described in this paper were cooperative activities based on the agreement between ESU-TECH Co. Ltd. and Kobe University. Authors would like to thank Mr. Kiyoshi NISHIMURA and Mr. Mikio KITAMURA who often gave appropriate advices and suggestions.for each experiment 

主　　题：daylighting daylighting duct system daylighting efficiency light collection part light guide part light emission part measurement experiment 

摘      要：Currently, daylighting ducts system is widely used as a daylighting device. Generally, daylighting duct system efficiently takes light from outside during the day, and conveys daylight to required location through light duct manufactured by high reflectance mirror. Daylighting duct system can convey daylight to underground space that has no windows opening to external space. Daylighting system is composed of light collection part, light guide part and light emission part. Efficiency of daylighting system is depending on type of each part used in the system. However, it is very difficult to estimate exact light flow in the system considering type of the parts. Authors performed measurement experiments to make clear the light flow with real-size model and miniature model of daylighting duct system. We discussed effect of type of the parts on efficiency of daylighting duct system.