住宅小区室外微气候及热岛潜势分析

被引：6

作者：

马卫武 ^{[1
]}

张翼 ^{[1
]}

吴春玲 ^{[2
]}

余雷模 ^{[1
]}

机构：

[1] 中南大学能源科学与工程学院

[2] 中国建筑科学研究院天津分院

来源：

中南大学学报(自然科学版) | 2013年 / 44卷 / 12期

基金：

中国博士后科学基金;

关键词：

热岛潜势; 室外微气候; 风环境; 热环境; 建筑表面材料; 小区建筑布局;

D O I：

暂无

中图分类号：

TU119 [建筑气候学];

学科分类号：

081304 ;

摘要：

采用数值模拟方法并结合实测数据分析居住小区室外微气候特点,给出2种改进方案并分析比较不同方案的风环境与热环境特点,提出基于表面平均温度的改进热岛潜势(improved heat island potential,IHIP),以IHIP综合评价不同方案下的小区热岛效应强度,研究化率对小区IHIP的影响,计算得到小区绿化率与IHIP的关系式。研究结果表明:从小区表面平均温度分布来看,道路表面温度>屋顶表面温度>日照区地面温度>日照区墙面温度>日影区墙面温度>日影区地面温度>绿地表面温度;对于相同材质的道路,顺着来流风向的道路表面平均温度比垂直于来流风向的道路温度低3.1℃;合理的建筑布局可以使得小区风速更加均匀,有助于降低小区内空气的温度;选择合适的小区建筑表面材料可以显著降低建筑表面温度,使得IHIP明显降低;小区绿化率每增加10%,IHIP降低2℃左右。

引用

页码：5117 / 5124

页数：8

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