建筑膜材生命周期碳足迹分析  

Life cycle carbon footprint analysis of architectural membrane

作　　者：王若晖 胡建辉[1] 陈务军[1] WANG Ruohui;HU Jianhui;CHEN Wujun(Space Structure Research Center,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学空间结构研究中心,上海200240

出　　处：《西安建筑科技大学学报(自然科学版)》2025年第1期31-40,共10页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金(52278191,52278193)。

摘　　要：建筑膜材是膜结构建筑中最具特色的建材,研究其碳足迹能够为膜结构碳排放计算提供基础数据支撑.采用生命周期评价方法量化评估建筑膜材“从摇篮到大门”系统边界内的碳足迹,对数据进行敏感度分析和数据质量分析;提出膜材生产减排建议,设定减碳路径并评估减碳效果.结果表明:P类膜(P2等级)、G类膜(G5等级)、E类膜的碳足迹分别为3537、6825、10127 kgCO_(2) e/t,原料生产阶段碳排放量占比最大,是膜材生产过程降碳的关键环节.优化生产工艺,使用低碳、绿色、再生原料,调整能源结构,使用清洁电力,是降低建筑膜材碳足迹的有效手段.Architectural membrane is the most characteristic building material of membrane structures,and research on its carbon footprint can provide basic data support for the calculation of membrane structure carbon emissions.The life cycle assessment(LCA)method is used to quantitatively evaluate the carbon footprint within the boundary of architectural membrane“from cradle to gate”system.The sensitivity analysis and data quality analysis of the data are carried out,and the suggestions for emission reduction of membrane production are put forward.The carbon reduction path is set and the carbon reduction effect is evaluated.The results show that the carbon footprints of PVC-coated polyester fabrics membrane(P2 grade),PTFE-coated fiberglass membrane(G5 grade),and ETFE film are 3537 kgCO_(2)e/t,6825 kgCO_(2)e/t,and 10127 kgCO_(2)e/t.The raw material production stage accounts for the largest proportion of whole carbon emissions,which is the key link of carbon reduction in architectural membrane production.Optimizing the production process,using low-carbon,green,renewable raw materials,adjusting the energy structure,using clean electricity are effective means to reduce the carbon footprint of architectural membranes.

关 键 词：建筑膜材 生命周期评价 碳足迹 

分 类 号：TU532[建筑科学—建筑技术科学] X327[环境科学与工程—环境工程]