西安建筑科技大学学报(自然科学版)

据统计,我国建筑业能耗占全国总能耗的40%以上,其中,建筑围护结构热量交换产生的温度调节能耗占建筑全生命周期的70%以上,而建筑保温系统作为围护结构热量交换的主要控制者,对于建筑能耗、环境负荷有着重要影响.因此,本研究采用生命周期评价方法,选定保温结构一体化产物增强复合岩棉条板保温系统为研究对象,以1 m2为功能单位,划定从原辅材料开采到成品出厂(从摇篮到大门)为系统边界对其进行研究,识别其造成环境影响的关键阶段并提出可选择的优化改进方案,旨在降低建筑保温材料的环境负荷并为建筑外墙外保温系统的选择提供新的决策.

According to statistics, the energy consumption of China's construction industry accounts for more than 40% of the country's total energy consumption, of which the energy consumption of temperature regulation generated by heat exchange of building envelope accounts for more than 70% of the whole life cycle of buildings. As the main controller of heat exchange of building envelope, building insulation system have an important impact on building energy consumption and environmental load. Therefore, this study adopts the life cycle assessment method, selects the insulation structure integrated product——reinforced composite rock wool board insulation system as the research object, takes 1 m2 as the functional unit, and delimits the system boundary from the mining of raw and auxiliary materials to the delivery of finished products(from cradle to gate), identify the key stages of its environmental impact and propose optional optimization and improvement plans, aiming to reduce the environmental load of building insulation materials and provide new decisions for the selection of external insulation system for building exterior walls.

引言
1 增强复合岩棉条板保温系统及其生产流程简介
2 研究方法
3 影响评价与结果解释
4 基于GWP指标的单元过程关键清单识别与改进
5 结论

图1 增强复合岩棉条板及其保温系统现场照片<br/>Fig.1 Field photos of reinforced composite rock wool board and its insulation system

图1 增强复合岩棉条板及其保温系统现场照片
Fig.1 Field photos of reinforced composite rock wool board and its insulation system

图2 岩棉板生产流程示意图<br/>Fig.2 Production diagram of rock wool board production process

图2 岩棉板生产流程示意图
Fig.2 Production diagram of rock wool board production process

图3 复合岩棉条板生产示意图<br/>Fig.3 Production diagram of composite rock wool board

图3 复合岩棉条板生产示意图
Fig.3 Production diagram of composite rock wool board

图4 增强复合岩棉条板保温系统生产示意图<br/>Fig.4 Production diagram of reinforced composite rock wool board insulation system

图4 增强复合岩棉条板保温系统生产示意图
Fig.4 Production diagram of reinforced composite rock wool board insulation system

图5 增强复合岩棉条板保温系统构造大样<br/>Fig.5 Reinforced composite rock wool board insulation system structure sample

图5 增强复合岩棉条板保温系统构造大样
Fig.5 Reinforced composite rock wool board insulation system structure sample

表1 环境影响类型指标选取<br/>Tab.1 Selection of environmental impact type indicators

表1 环境影响类型指标选取
Tab.1 Selection of environmental impact type indicators

图6 系统边界
Fig.6 System boundary

表2 背景数据库
Tab.2 Background database

表3 岩棉板生产消耗与主要排放<br/>Tab.3 Production consumption and main emissions of rock wool board

表3 岩棉板生产消耗与主要排放
Tab.3 Production consumption and main emissions of rock wool board

表4 复合岩棉条板生产消耗与主要排放<br/>Tab.4 Production consumption and main emissions of composite rock wool board

表4 复合岩棉条板生产消耗与主要排放
Tab.4 Production consumption and main emissions of composite rock wool board

表5 增强复合岩棉条板生产消耗与主要排放<br/>Tab.5 Production consumption and main emissions of reinforced composite rock wool board

表5 增强复合岩棉条板生产消耗与主要排放
Tab.5 Production consumption and main emissions of reinforced composite rock wool board

表6 整体LCA结果<br/>Tab.6 Overall LCA results

表6 整体LCA结果
Tab.6 Overall LCA results

表7 各单元过程LCA结果<br/>Tab.7 LCA results of each unit process

表7 各单元过程LCA结果
Tab.7 LCA results of each unit process

图7 单元过程一GWP贡献图<br/>Fig.7 GWP contribution diagram of unit process1

图7 单元过程一GWP贡献图
Fig.7 GWP contribution diagram of unit process1

图8 单元过程二GWP贡献图<br/>Fig.8 GWP contribution diagram of unit process2

图8 单元过程二GWP贡献图
Fig.8 GWP contribution diagram of unit process2

图9 单元过程三GWP贡献图<br/>Fig.9 GWP contribution diagram of unit process3

图9 单元过程三GWP贡献图
Fig.9 GWP contribution diagram of unit process3

图10 抹面胶浆生产过程GWP贡献图<br/>Fig.10 GWP contribution diagram of plaster production process

图10 抹面胶浆生产过程GWP贡献图
Fig.10 GWP contribution diagram of plaster production process

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备注

引言

1 增强复合岩棉条板保温系统及其生产流程简介

2 研究方法

3 影响评价与结果解释

4 基于GWP指标的单元过程关键清单识别与改进

5 结论

期刊信息