项目名称: 城市各向异性散射辐射与遮阳对建筑得热的影响
项目编号: No.51278349
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 建筑科学
项目作者: 李峥嵘
作者单位: 同济大学
项目金额: 76万元
中文摘要: 课题研究城市环境中散射辐射的各向异性特点及其对遮阳建筑表面得热的影响。以夏热冬冷、四季潮湿的发达城市为背景,通过自建小型气象台站和上海及其它地区气象数据的支持,收集到达建筑表面的散射辐射参数,分析城市的大气环境和密集的人造体表面对散射辐射特性的影响,建立建筑表面接受的散射辐射的空间、时间规律;对比分析现有的散射辐射模型的适应性和优缺点,建立该地区环境条件下比较精确的散射辐射模型;应用以上模型,建立自然条件下刚性遮阳建筑表面微环境内辐射-对流综合换热模型,研究散射辐射在不同朝向上对刚性遮阳建筑表面得热的影响,提出刚性遮阳系统的性能评价模型。
中文关键词: 各向异性散射辐射;建筑节能;遮阳;城市环境;
英文摘要: This study focuses on the anisotropic diffuse radiation characteristics and its effect on heat transfer through building envelop with blade shading in cities. Typical cities locate in mixed climate zone, diffuse radiation data is collected through research meteorological station and national meteorological stations in Shanghai or other cities to analysis the effect of cities' atmospheric environment and high-density man-made surface on radiation characteristics. Time and special pattern of diffuse radiation data will be erected. A more precise model will be developed based on the data and comparison with existing model. A envelop with external blade shading system will be built to study the heat transfer progress of combined diffuse radiation-convection boundary condition. The effect of anisotropic diffuse radiation on building energy efficiency from shading system will be assessed.
英文关键词: anisotropic diffuse radiation;building energy efficiency;shading;city environment;