Variations in Whole-Life Carbon Emissions of Similar Buildings in Proximity: An Analysis of 145 Residential Properties in Cornwall, UK
Variations in Whole-Life Carbon Emissions of Similar Buildings in Proximity: An Analysis of 145 Residential Properties in Cornwall, UK
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DOI：
10.1016/j.enbuild.2023.113387
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发表时间：
2023-07
影响因子：
6.7
通讯作者：
Lin Zheng;Markus Mueller;Chunbo Luo;T. Menneer;Xiaoyu Yan
中科院分区：
文献类型：
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作者：
Lin Zheng;Markus Mueller;Chunbo Luo;T. Menneer;Xiaoyu Yan
评估和减少建筑物的全寿命碳排放（WLCE）对于实现全球气候目标至关重要。虽然许多研究已经研究了建筑物WLCE，但缺乏对大量邻近类似建筑物WLCE的变异性及其关键影响因素的了解。我们通过量化英国康沃尔郡145个住宅物业的WLCE来填补这些知识空白，遵循官方标准和指南中推荐的方法来构建WLCE并使用传感器记录的实际用电量，然后分析WLCE与一系列与物业及其居住者相关的因素之间的相关性。我们发现显着的变化，在WLCE之间的这145个属性，从21至193吨二氧化碳当量，与WLCE强度范围从0.5至2.6吨二氧化碳当量/平方米。WLCE与两个因素之间有很强的相关性：建筑面积和居住人数，其次是卧室数量，物业类型，窗框材料，供暖系统类型，主要居住者的年龄，玻璃类型和阁楼隔热厚度。这表明，建筑物属性和居住者特征都可能导致附近类似建筑物的WLCE发生显着变化。因此，在制定减少建筑物WLCE的策略时，需要考虑建筑设计和居住者的生活方式。
Assessing and reducing the whole-life carbon emissions (WLCE) of buildings is essential to achieving global climate targets. Although many studies have examined building WLCE, there is a lack of understanding of the variability of WLCE for a large number of similar buildings in proximity and the key influencing factors. We fill these knowledge gaps by quantifying the WLCE of 145 residential properties in Cornwall, UK, following methods recommended in official standards and guidelines for building WLCE and using actual electricity consumption recorded by sensors, and then analysing correlations between the WLCE and a range of factors related to the properties and their occupants. We found significant variations in the WLCE among these 145 properties, ranging from 21 to 193 t CO2eq, with the WLCE intensity ranging from 0.5 to 2.6 t CO2eq/m2. There are strong correlations between WLCE and two factors: floor area and number of occupants, followed by number of bedrooms, type of property, window frame material, type of heating system, age of the main occupant, type of glazing, and loft insulation thickness. This suggests that both building attributes and occupant characteristics can result in significant variations in the WLCE of similar buildings in proximity. Therefore, both building design and occupant lifestyle need to be considered when developing strategies to reduce building WLCE.