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Relationships between CO2 emissions and embodied energy in building construction: A historical analysis of Taipei

机译：建筑施工中二氧化碳排放量与内含能之间的关系：台北的历史分析

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Urban form is one of the key strategies the IPCC AR5 emphasized in attempting to mitigate greenhouse gases in urban areas. Although there is an abundance of research exploring the relationship linking the elements of urban form, energy consumption, and CO2 emissions on an urban level, little is known in regards to their relationships at the sub-city level. In addition, the energy consumed and the associated CO2 emissions during the construction of buildings in urban areas have seldom been assessed. To address these two research areas, this paper uses emergy synthesis to evaluate embodied energy storage of different building types according to construction methods and development intensity and assesses the resources consumed and CO2 emissions during construction processes across urban space. With the city of Taipei as a case study, five building types were classified according to building materials and stories. The spatial distribution of emergy storage embodied in the urban form of Taipei indicates that neighborhoods with higher emergy storage and building CO2 emission are dominated by six to twelve stories reinforced concrete (RC) buildings. In contrast, the neighborhoods of low urban development dominated by brick buildings and one to five stories reinforced concrete buildings have lower emergy storage in buildings and building CO2 emission. The results of the spatial distribution of emergy storage and building CO2 emission are used to discuss the relationship of the intensity distribution ratio, the building types, the daily consumption of CO2 , and the effects of urban spatial planning.
机译：城市形态是IPCC AR5强调减轻城市区域温室气体排放的主要战略之一。尽管有大量研究探索将城市形式，能源消耗和二氧化碳排放量之间的关系联系在一起的关系，但对于它们在副城市水平上的关系知之甚少。另外，很少评估城市地区建筑物建造过程中的能耗和相关的二氧化碳排放量。针对这两个研究领域，本文使用能值综合法根据建筑方法和发展强度评估不同建筑类型的具体能量存储，并评估整个城市空间建筑过程中消耗的资源和二氧化碳排放量。以台北市为例，根据建筑材料和故事将五种建筑类型分类。台北城市形态所体现的能值存储空间分布表明，能值存储和建筑物二氧化碳排放量较高的社区以六到十二层的钢筋混凝土（RC）建筑为主。相比之下，城市发展缓慢的社区以砖混建筑和一到五层的钢筋混凝土建筑为主导，其建筑内的能存储量和建筑物的二氧化碳排放量较低。用能值存储和建筑物CO2排放的空间分布结果来讨论强度分布比，建筑物类型，CO2的日消耗量以及城市空间规划的影响之间的关系。

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