竹筒屋天井的热压通风的潜力分析  

The Potential of Hot Pressing Ventilation in the Patio of Bamboo House

作　　者：周孝清[1] 徐敏 庞玥 李丽[2] Zhou Xiaoqing;Xu Min;Pang Yue;Li Li

机构地区：[1]广州大学节能院 [2]广州大学建筑与城市规划学院

出　　处：《华中建筑》2021年第11期49-53,共5页Huazhong Architecture

基　　金：国家自然科学基金“夏热地区‘常全影’室外公共空间的形成机理与设计检验、方法研究”(编号:51778154);广州市科技计划“基于自然调和原理的建筑被动蒸发降温体系热湿性能研究”(编号:201904010251)。

摘　　要：岭南地区夏季炎热潮湿,建筑物的自然通风尤为重要。广州竹筒屋因其独特的内部空间组织,对当地湿热气候有较好的适应性,其中天井的热压通风降温作用明显。该文先通过热压通风理论计算获得进出风口压力潜力,再以此为边界条件,取不同的高度和宽度分别进行模拟,由此分析了天井高度、宽度和温差对于热压通风的影响。在现代狭长型的住宅设计中,在合适的高宽比范围内,天井高度H应大于7m,宽度应越小越好,当高宽比为4.6~5.3,天井热压通风潜力大;温差Δt一般应控制在5℃,超过5℃再增大温差对天井内热压通风的影响不大。The natural ventilation of buildings is particularly important because of the hot and humid summer in Lingnan area. Bamboo house has good adaptability to the local humid and hot climate. The hot pressure ventilation of the patio are especially obvious. First, the potential of the air inlet and outlet pressure is calculated through the theory of hot pressing ventilation, and then the boundary conditions are obtained. The different heights and widths are simulated respectively, and the influence of the height, width and temperature difference of the patio on the hot pressure ventilation is analyzed. In the design of modern narrow and long residential buildings, the height of the patio should be larger than 7 m and the width should be smaller in the appropriate range of height width ratio. When the ratio of height to width is between 4.6 and 5.3, the potential of hot pressure ventilation of the patio is large.the temperature difference should be controlled at 5℃, increasing the temperature difference above 5℃ is of little significance to the hot pressing ventilation in the patio.

关 键 词：竹筒屋 天井尺度 温差 热压通风潜力 模拟分析 

分 类 号：TU834.1[建筑科学—供热、供燃气、通风及空调工程]