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Trade-off between the economic and environmental impact of different decarbonisation strategies for residential buildings

机译：不同脱碳策略对住宅建筑的经济和环境影响之间的权衡

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摘要

German residential multi-family buildings in the 1950s-1970s age group are a relevant case study to assess the degree of certainty in meeting climate targets for the built environment. This research evaluates the contribution of traditional strategies, and whether innovative strategies perform environmentally and economically better for this purpose. We use LCA to define a benchmark for the environmental impact, expressed as lifecycle GWP, and LCC to assess the economic impact, expressed as Internal Rate of Return (IRR). The two indicators are evaluated in a Pareto optimal method. We consider combinations of strategies for the thermal envelope, the building services, and the integration of locally available renewable energy in five existing buildings. Results show that accelerating the implementation rate of traditional strategies contributes only partially to raise the degree of certainty in reaching climate targets. For this purpose, innovative building services strategies as well as the extensive integration of local energy generation from renewable sources is required, even if the GWP reduction target of electricity from the main grid is met. The use of renewable energy has a much bigger impact on the overall GWP balance than the choice between a standard renovation and a minimal renovation of the building envelope. IRR tends to sink with GWP. We conclude that a regulated benchmark for the environmental lifecycle impact of residential building projects will help to introduce the trade-off assessment necessary to identify economically sustainable strategies that increase the level of certainty in meeting climate targets.
机译：20世纪50年代至20世纪70年代常龄组的德国住宅多家庭建筑是一个有关的案例研究，以评估满足建筑环境的气候目标方面的确定性。本研究评估了传统策略的贡献，以及创新策略是否为此目的进行环境和经济。我们使用LCA来定义环境影响的基准，表示为生命周期GWP，以及LCC来评估经济影响，表示为内部回报率（IRR）。两种指标以帕累托最优方法评估。我们考虑在五个现有建筑物中的热封，建筑物服务和本地可再生能源集成的策略组合。结果表明，加速传统策略的实施率仅部分促进达到气候目标的确定性程度。为此目的，即使满足来自主电网的电网的GWP缩减目标，需要创新的建筑服务策略以及从可再生来源的广泛整合来自可再生来源的局部能源。可再生能源的使用对整体GWP平衡产生了更大的影响，而不是标准装修与建筑信封的最小翻新之间的选择。 IRR倾向于与GWP汇。我们得出结论，住宅建筑项目的环境生命周期影响的监管基准将有助于介绍确定经济上可持续战略所必需的权衡评估，以增加满足气候目标方面的确定性水平。

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  • 来源
    《Building and Environment》 |2019年第5期|137-144|共8页
  • 作者

    Conci Mira; Konstantinou Thaleia; van den Dobbelsteen Andy; Schneider Jens;

  • 作者单位

    Tech Univ Darmstadt Dept Civil & Environm Engn Sci Inst Struct Mech & Design Franaiska Braun Str 3 D-64295 Darmstadt Germany;

    Delft Univ Technol Fac Architecture & Built Environm Dept Architectural Engn Technol Julianalaan 134 NL-2628 BL Delft Netherlands;

    Delft Univ Technol Fac Architecture & Built Environm Dept Architectural Engn Technol Julianalaan 134 NL-2628 BL Delft Netherlands;

    Tech Univ Darmstadt Dept Civil & Environm Engn Sci Inst Struct Mech & Design Franaiska Braun Str 3 D-64295 Darmstadt Germany;

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

    CO2 emission reduction; Building energy renovation; Renewable energy; LCA; LCC;

    机译：二氧化碳排放减少;建设能源改造;可再生能源;LCA;LCC;

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