安徽省典型超低能耗居住建筑外墙材料全生命周期碳排放测算  

Life Cycle Carbon Emission Calculation of Exterior Wall Materials of Typical Ultra-low Energy Consumption Residential Buildings in Anhui Province

作　　者：沈念俊[1,2] 周静娜 李浩瀚[1] 庙诗祥 SHEN Nianjun;ZHOU Jingna;LI Haohan;MIAO Shixiang(Anhui Institute of Building Research&Design,Hefei 230031,China;Anhui Key Laboratory of Green Building and Prefabricated Construction,Hefei 230031,China)

机构地区：[1]安徽省建筑科学研究设计院,安徽合肥230031 [2]绿色建筑与装配式建造安徽省重点实验室,安徽合肥230031

出　　处：《绿色建筑》2024年第5期129-134,共6页Green Building

基　　金：中国建筑节能协会2022科学技术项目计划“建筑领域节能低碳标准体系研究”(CABEE2022KY008);安徽省住房城乡建设厅项目“城乡建设领域碳排放技术标准体系研究”(建科函[2022]582号2022-RK026)。

摘　　要：通过调研安徽省的超低能耗居住建筑,总结出常用的保温形式和保温材料,结合实际项目,得出7种典型外墙构造。从全生命周期角度,对这7种外墙构造在建材生产阶段、建材运输阶段、外墙施工阶段、外墙维护阶段、外墙拆除阶段的碳排放量进行测算。结果表明:建材生产阶段的碳排放量占比最大,达到总碳排放量的70%以上;装配式比非装配式的总碳排放量降低6%左右;内外复合保温外墙的总碳排放量最大,比“夹心保温+外保温外墙”的碳排放量高18%以上,比外保温外墙的碳排放量高11%以上;不同的保温材料和墙体材料对外墙的总碳排放量影响较小。通过分析比较,得出碳排放最优的外墙构造,从建材角度为降碳提供依据和方法。Through the investigation of ultra-low energy consumption residential buildings in Anhui province,the common thermal insulation forms and thermal insulation materials are summarized,and 7 typical exterior wall structures are obtained in combination with actual projects.From the perspective of the whole life cycle,the carbon emissions of these 7 kinds of external wall structures in the building materials production stage,building materials transportation stage,external wall construction stage,external wall maintenance stage and external wall demolition stage were measured.The results show that the carbon emissions in building materials production stage account for the largest proportion,reaching more than 70%of the total carbon emissions.The total carbon emission of assembled type is about 6%lower than that of non-assembled type.The total carbon emissions of internal and external composite insulation walls are the largest,which is more than 18%higher than that of sandwich insulation+external insulation walls,and more than 11%higher than that of external insulation walls.Different insulation materials and wall materials have less impact on the total carbon emissions of the external wall.Through analysis and comparison,the optimal external wall structure with carbon emission is obtained,which provides basis and method for carbon reduction from the perspective of building materials.

关 键 词：超低能耗居住建筑 外墙材料 全生命周期 碳排放 

分 类 号：TU5[建筑科学—建筑技术科学]