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首页> 外文期刊>Building and Environment >Effectiveness of an ivy covering at insulating a building against the cold in Manchester, U.K: A preliminary investigation
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Effectiveness of an ivy covering at insulating a building against the cold in Manchester, U.K: A preliminary investigation

机译：在英国曼彻斯特，常春藤覆盖物对建筑物防寒的有效性：初步调查

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摘要

It is well known that living walls can reduce air conditioning demands on buildings during hot sunny weather, but little is known about their effectiveness at insulating buildings during cold weather. In this study we investigated the insulating effectiveness of a coating of English ivy Hedera helix covering the North wall of a solid brick-walled building in Manchester, U.K. in late winter 2012. Internal and external wall temperatures were monitored over a 36 day period on both bare and ivy-covered areas of the wall, along with the local ambient temperature. It was shown that the ivy covering increased the mean external wall temperature by 0.5 ℃ and reduced temperature fluctuations; ivy covered walls were on average 1.4 ℃ warmer at night but 1.7 ℃ cooler in the middle of the day. As a consequence, calculated energy losses were reduced by 8%. The covering was more effective on cold days, but at temperatures above 12.2 ℃ the ivy covering increased energy loss, because it shaded the outside of the wall from warming by short wave radiation. The results suggest that evergreen living walls can reduce heating costs, particularly when placed on the North of buildings, whereas on the South side deciduous climbers might be more effective.
机译：众所周知，在炎热的晴天，活动墙可以减少建筑物对空调的需求，但对于在寒冷的天气下隔热建筑物的有效性知之甚少。在这项研究中，我们调查了英国常春藤Hedera螺旋涂层在2012年冬末覆盖英国曼彻斯特的实心砖墙建筑的北壁的隔热效果。在36天的时间内对这两种材料的内外壁温度进行了监测墙壁的裸露和常春藤覆盖的区域，以及当地的环境温度。结果表明，常春藤覆盖物使平均外壁温度提高了0.5℃，并减少了温度波动；常春藤覆盖的墙壁在晚上平均温度高1.4℃，而在白天中间温度低1.7℃。结果，计算出的能量损失减少了8％。在寒冷的天气里，这种覆盖物更有效，但在高于12.2℃的温度下，常春藤覆盖物会增加能量损失，因为它遮盖了墙的外部，使其免受短波辐射的影响。结果表明，常绿的居住墙可以降低采暖成本，特别是当放置在建筑物的北部时，而在南侧的落叶攀登者可能更有效。

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  • 来源
    《Building and Environment》 |2014年第10期|32-35|共4页
  • 作者

    C. Bolton; M.A. Rahman; D. Armson; A.R. Ennos;

  • 作者单位

    Faculty of Life Sciences, University of Manchester, 3.614 Stopford Building, Oxford Road, Manchester M13 9PT, UK;

    Faculty of Life Sciences, University of Manchester, 3.614 Stopford Building, Oxford Road, Manchester M13 9PT, UK;

    Faculty of Life Sciences, University of Manchester, 3.614 Stopford Building, Oxford Road, Manchester M13 9PT, UK;

    Faculty of Life Sciences, University of Manchester, 3.614 Stopford Building, Oxford Road, Manchester M13 9PT, UK,School of Biological, Biomedical and Environmental Sciences, University of Hull, Cottingham Road, Kingston-upon-Hull HU6 7RX, UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Living walls; Ivy; Insulation; Energy use;

    机译：活墙;常春藤;绝缘;能源消耗;

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