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首页> 外文期刊>Building and Environment >Life cycle thinking-based energy retrofits evaluation framework for Canadian residences: A Pareto optimization approach
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Life cycle thinking-based energy retrofits evaluation framework for Canadian residences: A Pareto optimization approach

机译：基于生命周期的思维能源改造加拿大住宅评估框架：帕累托优化方法

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Building energy retrofits have been identified as key to realizing climate mitigation goals in Canada. However, retrofit solutions that only produce greenhouse gas emission savings can place economic burdens on residential building owners and hinder the community penetration of building energy retrofitting projects. Therefore, investigating trade-offs between environmental and economic impacts of retrofitting is essential to identify optimal retrofit strategies that can produce emissions savings while delivering economic benefits for the stakeholders. This paper proposes a community-level building energy retrofit evaluation framework for residential buildings. The proposed framework evaluates building energy retrofits using a multi-objective optimization approach that accounts for associated life cycle economic and environmental impacts. Life cycle CO2 emissions were selected as the indicator for environmental performance. The net present value of the cash flows involved in a given retrofit project throughout the project life cycle was selected as the economic performance indicator. Building energy simulation results were combined with economic and environmental impact data to quantify these performance indicators. The performance results were used to identify Pareto-optimal retrofit solutions. The results indicate that retrofitting existing residential buildings can produce considerable emission reductions (up to 245.1 tonCO(2) eq/residence) and cost savings (up to 12,900 $/residence). Moreover, retrofit packages should prioritize upgrading building envelope insulation and space heating systems. This study introduces a decision support tool for community-level retrofit planners that can account for life cycle environmental and life cycle economic performance of retrofitting while fulfilling capital investment constraints.
机译：建筑能源改造已被确定为实现加拿大气候缓解目标的关键。然而，仅生产温室气体排放节约的改造解决方案可以将经济负担放在住宅建筑业主上，并阻碍建筑能源改造项目的社区渗透。因此，调查改造的环境和经济影响之间的权衡对于确定能够产生排放量的最佳改造策略至关重要，同时为利益攸关方提供经济利益。本文提出了一个社区级建筑能源改装住宅建筑物评估框架。拟议的框架使用多目标优化方法评估建筑能源改造，该方法占相关生命周期经济和环境影响。选择生命周期二氧化碳排放作为环境绩效的指标。在整个项目生命周期内涉及给定改装项目的现金流量的净现金价值被选为经济绩效指标。建筑能源仿真结果与经济和环境影响数据相结合，以量化这些绩效指标。性能结果用于识别帕累托最佳改装解决方案。结果表明，现有住宅建筑物的改造可以产生相当大的排放减排（高达245.1吨（2）欧元/居住地）和成本节省（高达12,900美元/住所）。此外，改造包装应优先考虑升级建筑包络绝缘和空间加热系统。本研究介绍了一个决策支持工具，用于社区级改装规划者，可以考虑生命周期的环境和生命周期经济性能，同时满足资本投资限制。

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