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A hydrothermal model to assess the impact of green walls on urban microclimate and building energy consumption

机译：评估绿墙对城市小气候和建筑能耗的影响的水热模型

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摘要

Covering a building envelope with vegetation provides a solution capable of mitigating the urban heat island phenomenon and its impact on the energy consumption of buildings. Simulation tools to assess the efficiency of such a solution are lacking, especially for green walls. The present research aims to offer a hydrothermal model of green walls and green roofs for implementation in the urban microclimate simulation software SOLENE-Microclimate. To this end, a fast, efficient coupled heat-mass transfer model has been developed. Simulation results are compared with experimental data obtained from the LEEA Laboratory in Geneva for three green wall samples. Aside from the level of uncertainty found for the evapotranspiration calculation, these results confirm that the model accurately characterizes the temperature evolution of all three prototypes. Results also show good correlation between measured and simulated temperatures. The model is indeed able to reproduce water stress and characterize various types of living walls.
机译：用植被覆盖建筑物的围护结构提供了一种能够减轻城市热岛现象及其对建筑物能耗的影响的解决方案。缺乏评估这种解决方案效率的仿真工具，尤其是对于绿墙。本研究旨在为在城市微气候模拟软件SOLENE-Microclimate中实施的绿色墙壁和绿色屋顶提供水热模型。为此，已经开发了快速，有效的耦合热质传递模型。将模拟结果与从日内瓦LEEA实验室获得的三个绿墙样品的实验数据进行了比较。除了为蒸散计算找到的不确定性水平外，这些结果还证实了该模型可以准确地描述所有三个原型的温度变化。结果还显示实测温度与模拟温度之间具有良好的相关性。该模型确实能够重现水分压力并表征各种类型的活动墙。

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