Energy consumption and greenhouse gas emissions by buildings: A multi-scale perspective
Energy consumption and greenhouse gas emissions by buildings: A multi-scale perspective
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建筑物的能源消耗和温室气体排放：多尺度视角
DOI：
10.1016/j.buildenv.2018.11.003
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发表时间：
2019-03-15
影响因子：
7.4
通讯作者：
Chen, G. Q.
中科院分区：
文献类型：
--
作者：
Li, Y. L.;Han, M. Y.;Chen, G. Q.
由于建筑施工阶段严重依赖城市、国家和全球经济的支持，本文从多尺度的角度对建筑施工阶段进行了投入产出分析和过程分析相结合的混合系统分析。基于多尺度强度数据库，以钢铁、水泥、石灰和金属制品为主要投入物，在城市、全国和全球尺度系统地量化了北京案例建筑基础设施工程所带动的隐含能耗和温室气体排放。通过对供应链的溯源，计算出城市、全国和全球规模的建筑建设对能源消耗的影响分别为39.12%、55.21%和5.67%，对温室气体排放的影响分别为68.78%、24.41%和6.80%。一般来说，基础材料(如金属、石油)主要由全球规模供应，而合成材料(如油漆、纤维和橡胶)一般在中国内部进行再加工和运输。E-town案例建筑在城市、全国和全球尺度下的单位面积能耗分别为3.03GJ/m(2)、4.27GJ/m(2)和0.44GJ/m(2)。相应地，三个尺度的温室气体排放量分别为0.40tCO2-eq/m(2)、0.14tCO2-eq/m(2)和0.04tCO2-eq/m(2)。考虑到建筑工程在城市、国家和全球范围内的整体影响，可以从多尺度的角度得出总体消费和减排的多主体责任分配和远程联系的协调努力。
Since the construction stage of buildings is heavily dependent on supports from urban, national and global economies, a hybrid systems analysis combining input-output analysis and process analysis is conducted in this work from a multi-scale perspective. Based on the multi-scale intensity databases, the embodied energy consumption and greenhouse gas emissions driven by the infrastructure engineering of case buildings in Beijing are systematically quantified at urban, national, and global scales with primary inputs in particular steel, cement, lime, and metal products. By tracing sources along the supply chains, the effects of building construction at the urban, national and global scales are calculated as 39.12%, 55.21%, and 5.67% of energy consumption and 68.78%, 24.41%, and 6.80% of greenhouse gas emissions, respectively. In general, basic materials (such as metal and petroleum) are mainly supplied by global scales, while synthetic materials (such as paints, fiber and rubber) are generally re-processed and transported within China. The energy consumption per area of the case buildings in E-town from urban, national and global scales are 3.03 GJ/m(2), 4.27 GJ/m(2) and 0.44 GJ/m(2) respectively. Correspondingly, the related greenhouse gas emissions of the three scales are 0.40 t CO2-eq/m(2), 0.14 t CO2-eq/m(2) and 0.04 t CO2-eq/m(2) respectively. With overall impacts of the construction engineering at urban, national, and global scales, the multi-entities responsibility assignments and tele-connected coordinate efforts for overall consumption and emission abatement could be derived from a multi-scale perspective.