Vertical greening systems and the effect on air flow and temperature on the building envelope
Vertical greening systems and the effect on air flow and temperature on the building envelope
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DOI：
10.1016/j.buildenv.2011.05.009
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发表时间：
2011-11
期刊：
影响因子：
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通讯作者：
K. Perini;M. Ottele;A. Fraaij;E. M. Haas;Rossana Raiteri
中科院分区：
文献类型：
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作者：
K. Perini;M. Ottele;A. Fraaij;E. M. Haas;Rossana Raiteri
在夏季和冬季，水平和垂直绿化的使用对建筑物的热工性能和城市环境的效果都有重要的影响。植物具有太阳过滤器的作用，广泛地阻止了建筑材料对热辐射的吸附。应用绿色技术并不是一个新概念；然而，它还没有被批准为建筑环境的节能方法。垂直绿化可以在建筑表面提供冷却潜力，这在温暖气候的夏季非常重要。在较冷的气候条件下，常绿植物创造了一个外部绝缘层，有助于节约能源和散失热量。本文分析了垂直绿化系统在建筑层面上对空气流动和（空气和地面）温度的影响。建立了一种实验方法，通过测量不同类型的绿化场地和活墙系统附近和表面的温度和气流，来评估风速对热阻的影响及其对热阻的影响。在秋天开始的时候，对裸露的farade和植物覆盖的farade进行了测量比较，以了解植被对建筑围护结构的热行为的贡献。
The use of horizontal and vertical greening has an important impact on the thermal performance of buildings and on the effect of the urban environment as well, both in summer and winter. Plants are functioning as a solar filter and prevent the adsorption of heat radiation of building materials extensively. Applying green façades is not a new concept; however it has not been approved as an energy saving method for the built environment. Vertical greening can provide a cooling potential on the building surface, which is very important during summer periods in warmer climates. In colder climates evergreen species create an external insulation layer and contribute to energy savings and loss of heat. In this study an analysis of the effect on air flow and (air and surface) temperature of vertical greening systems on the building level is presented. An experimental approach was set up to measure the temperature (air and surface) and the air flow near and on different types of green façades and a living wall system to evaluate the influence of wind velocity and its effect on the thermal resistance. A comparison between measurements on a bare façade and a plant covered façade has taken, in the beginning of autumn, to understand the contribution of vegetation to the thermal behaviour of the building envelope.