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Comparative life cycle assessment of four buildings in Greenland

机译：格陵兰四栋建筑的比较生命周期评估

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摘要

Assessment of environmental impacts across the life-cycle of buildings are lacking for Arctic areas, such as Greenland. Indeed, life-cycle assessments of buildings mainly focus on European or North American conditions which are very different from Arctic conditions. Hence, there is a need for assessing the life-cycle impacts pertaining to different building types to support environmentally sound decisions on the type of buildings to be constructed and used in Arctic areas such as Greenland. We conducted a life-cycle assessment on four buildings in Greenland, i.e. concrete building, CLT building, a timber frame building and a renovation of an existing concrete building. We evaluated the environmental impacts at midpoint indicator and overall damages to human health, ecosystem quality, and resources, to identify the building type with the lowest environmental impacts. Results show that renovation of existing buildings has the lowest environmental impact across all impact categories. The difference in environmental impacts among the new building types is generally small. Across all impact cate-gories, the average difference between largest and smallest impact score for the new buildings was a factor 3.6. Still, the CLT and timber frame building appears to have the best environmental performance. The findings of this study go against current building practice in Greenland, which is dominated by construction of new concrete buildings while renovation is uncommon. Thus, a larger use of assessment methods, such as life-cycle assessment, and a reconsideration of the current building practice is recommended to support a more environmentally sustainable building practice in Greenland.
机译：对建筑物生命周期的环境影响的评估缺乏格陵兰等北极地区。实际上，建筑物的生命周期评估主要关注欧洲或北美条件与北极状况非常不同。因此，需要评估与不同建筑物类型有关的生命周期的影响，以支持要在格陵兰等北极地区建造和使用的建筑物类型的环保决策。我们在格陵兰岛的四座建筑中进行了生命周期评估，即具体建筑，CLT建筑，木材框架建筑和现有混凝土建筑的翻新。我们评估了中点指标的环境影响，对人类健康，生态系统质量和资源的总体损害，以确定环境影响最低的建筑类型。结果表明，现有建筑物的翻新对所有影响类别的环境影响最低。新建筑类型之间的环境影响差异一般很小。在所有冲击赛举行的影响下，新建筑物的最大和最小影响分数之间的平均差异是3.6。尽管如此，CLT和木材框架建筑似乎具有最佳的环境性能。这项研究的调查结果违反了格陵兰岛目前的建筑实践，该实践由新的混凝土建筑建设，同时改造罕见。因此，建议使用评估方法的更大使用，例如生命周期评估以及当前建筑实践的重新考虑，以支持格陵兰岛更加环保的建筑实践。

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  • 来源
    《Building and Environment》 |2021年第10期|108130.1-108130.10|共10页
  • 作者

    Ryberg Morten Walbech; Ohms Pernille Krogh; Moller Eva; Lading Tove;

  • 作者单位

    Tech Univ Denmark Dept Technol Management & Econ Sustainabil Div Quantitat Sustainabil Assessment Grp Bldg 424 DK-2800 Lyngby Denmark;

    Tech Univ Denmark Dept Technol Management & Econ Sustainabil Div Quantitat Sustainabil Assessment Grp Bldg 424 DK-2800 Lyngby Denmark;

    Tech Univ Denmark Dept Civil Engn Bldg 118 DK-2800 Lyngby Denmark;

    Tech Univ Denmark Dept Civil Engn Bldg 118 DK-2800 Lyngby Denmark;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Buildings; Life-cycle assessment; Arctic; Greenland; Sustainability;

    机译：建筑物;生命周期评估;北极;格陵兰;可持续发展;

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