项目名称: 基于CBDM的我国亚热带地区天然光照明计算模型研究——以教室为研究载体
项目编号: No.51208205
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 建筑环境与结构工程学科
项目作者: 边宇
作者单位: 华南理工大学
项目金额: 25万元
中文摘要: 准确的天然光照明计算模型是研究建筑采光的基础,本课题旨在构建一套基于我国亚热带地区光气候实况的采光计算模型,是CBDM理论在该地域内应用的基础研究工作。经分析,某一时刻的实际天空亮度分布可近似由若干标准天空亮度模型或其分量以某种数学关系叠加模拟,在物理意义上可用透明云层遮盖系数这一概念加以解释,本研究的主要工作就是公式化这种叠加方式并获取其关键参数。课题组拟在广州搭建全尺寸教室作为研究载体,以一年为周期,分时刻将室内实测照度值与选定的若干标准天空模型下的模拟数值进行比较,以获取该地域气候实况下的云层遮盖系数数值。最后,本课题将对计算模型及其参数进行校验使之更趋准确。
中文关键词: 采光;CBDM;参考天空;计算模型;
英文摘要: Accurate computational model of natural lighting is the basis of study of building day- lighting. this project aims to build a day-lighting computational model based on the real sky luminance of the subtropical region of China: the basic research work of the CBDM theory applies in this region. After analysis, the actual sky luminance distribution in a moment can be approximated superimposed by some standard sky luminance model or its component in a certain mathematical relationship, available in the physical model of the concept of opaque cloud cover. The major work of this research is the formulation of this mathematical relationship and access to its key parameters. The group intends to build full-scale classroom as a research mockup in Guangzhou, in one-year cycle, compare indoor measured illuminance values and simulation values under the selected standard sky models to obtain the local opaque clouds cover coefficient values. Finally, the computational model and its parameters of this project will carry out the checksum to make it more accurate.
英文关键词: daylight;CBDM;representative sky;calculation model;