揭示脱碳化,循环化和成本效益之间的相互作用,在建筑能源改造中发挥作用
Chunbo Zhang1,2, Mingming Hu3, Benjamin Sprecher1,4
1Institute of Environmental Sciences, Leiden University, Leiden, Netherlands.
Nature communications
|August 4, 2025
概括
建筑装修减少了碳排放,但增加了成本. 循环战略提供了显著的材料和碳节约,但更高的翻新成本是不可避免的,需要加强激励措施.
科学领域:
- 可持续的建筑设计设计
- 生命周期评估 生命周期评估
- 循环经济原则循环经济原则
背景情况:
- 建筑能源改造对于减轻碳排放至关重要.
- 装修项目往往会导致物质需求增加和财务支出增加.
- 荷兰住宅部门面临着气候目标的重大翻新需求.
研究的目的:
- 调查各种装修方案的碳,材料和经济足迹.
- 分析不同装修策略对荷兰住宅部门的影响.
- 评估循环战略在减轻装修影响方面的潜力.
主要方法:
- 使用生命周期评估 (LCA) 来量化环境影响.
- 对2015年至2050年的装修策略进行了场景分析.
- 进行了敏感性分析,以确定关键影响驱动因素.
主要成果:
- 外墙改造可以减少排放量 (高达0.3%),但会增加材料使用量 (21-25%) 和成本 (2-6%).
- 供暖系统的翻新显示出减少碳排放的更大潜力.
- 重建可以减少高达17%的排放,但三倍的材料使用和成本.
- 循环战略可以抵消高达89%的物质足迹,并减少高达23%的排放.
结论:
- 在建筑改造中,即使有先进的循环性,显著的成本增加也是不可避免的.
- 循环装修策略需要加强激励措施,以便广泛采用.
- 需要采取协调一致的行动方法来平衡翻新中的可持续性和经济可行性.
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