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Green roof energy and water related performance in the Mediterranean climate

机译：地中海气候中与屋顶绿化与能源和水相关的性能

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摘要

Performance of vegetated roofs are investigated in terms of their expected benefits for the building and the urban environment, due to their recognised energy and water management potential scores. A review of related worldwide experiences is reported for comparison purposes. The investigation is here performed within the specific climatic context of the Mediterranean region. Full-scale experimental results are provided from two case studies, located in north-west and central Italy, consisting in two fully monitored green roofs on top of public buildings. The attenuation of solar radiation through the vegetation layer is evaluated as well as the thermal insulation performance of the green roof structure. The daily heat flow through the roof surface is quantified showing that the green roof outperforms the reference roof, therefore reducing the daily energy demand. As for water management, it is confirmed that green roofs significantly mitigate storm water runoff generation - even in a Mediterranean climate - in terms of runoff volume reduction, peak attenuation and increase of concentration time, although reduced performance could be observed during high precipitation periods.
机译：由于植被屋顶的公认能源和水管理潜力得分，因此根据其对建筑物和城市环境的预期收益来研究其性能。为了比较目的，报告了对全球相关经验的回顾。这里的调查是在地中海地区的特定气候环境下进行的。来自位于意大利西北部和中部的两个案例研究提供了全面的实验结果，其中包括两个在公共建筑顶部全面监控的绿色屋顶。评估了穿过植被层的太阳辐射的衰减以及绿色屋顶结构的隔热性能。量化通过屋顶表面的每日热量，显示绿色屋顶优于参考屋顶，因此减少了日常能源需求。关于水管理，已经确认，即使在高降水量期间，性能会降低，但即使在地中海气候下，屋顶绿化也能极大地减少雨水径流的产生，即使在地中海气候中也是如此。

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  • 来源
    《Building and Environment》 |2010年第8期|p.1890-1904|共15页
  • 作者

    R. Fioretti; A. Palla; L.G. Lanza; P. Principi;

  • 作者单位

    Department of Energetics, Marche Polytechnic University, Via Brecce Bianche 1, Ancona, Italy;

    Department of Civil, Environmental and Architectural Engineering, University of Geneva, Via Montallegro 1, 16145 Cenova, Italy;

    Department of Civil, Environmental and Architectural Engineering, University of Geneva, Via Montallegro 1, 16145 Cenova, Italy;

    Department of Energetics, Marche Polytechnic University, Via Brecce Bianche 1, Ancona, Italy;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    green roof; sustainable building; mediterranean; energy consumption; storm water;

    机译：绿色屋顶可持续建筑地中海;能源消耗;雨水;

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