建筑物化阶段CO<sub>2</sub>排放及其不确定性分析

马骏

doi:10.11835/j.issn.2096-6717.2021.243

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建筑物化阶段CO₂排放及其不确定性分析

环境工程 | 更新时间：2022-11-07

- 建筑物化阶段CO₂排放及其不确定性分析
- Analysis of CO₂ emissions and uncertainties in the embodied stage of buildings
- 土木与环境工程学报 2022年44卷第6期页码：209-218
- 作者机构：
  
  中铁十八局集团第四工程有限公司，天津 300222
- 作者简介：
  
  马骏（1981- ），男，高级工程师，主要从事城市轨道交通施工技术研究，E-mail: xiaohuiwygs@163.com。
- 基金信息：
  
  中国铁建股份有限公司科技研究开发计划(2020-C64)
- DOI：10.11835/j.issn.2096-6717.2021.243
  中图分类号： X506
- 收稿：2021-08-11，
  
  纸质出版：2022-12-30
- 稿件说明：
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马骏.建筑物化阶段CO₂排放及其不确定性分析[J].土木与环境工程学报,2022,44(06):209-218.

MA Jun.Analysis of CO₂ emissions and uncertainties in the embodied stage of buildings[J].Journal of Civil and Environmental Engineering,2022,44(06):209-218.
马骏.建筑物化阶段CO₂排放及其不确定性分析[J].土木与环境工程学报,2022,44(06):209-218. DOI： 10.11835/j.issn.2096-6717.2021.243.

MA Jun.Analysis of CO₂ emissions and uncertainties in the embodied stage of buildings[J].Journal of Civil and Environmental Engineering,2022,44(06):209-218. DOI： 10.11835/j.issn.2096-6717.2021.243.

摘要

是导致气候变暖的主要物质之一，而建筑行业的碳排放量占世界碳排放总量的25%左右。在建筑生命周期内，年均CO

排放最多的阶段为物化阶段，对建筑物化阶段的碳排放进行量化具有重要的研究意义。考虑排放清单等数据受人为因素及技术水平的限制，会出现一定的变异性，研究采用不确定性分析方法。将建筑按分部分项工程进行分解，结合具体的单元工序对物化阶段的CO

排放进行量化建模，进而给出减排中最需关注的单元工序。通过案例分析发现，建筑物化阶段的碳减排重点是材料生产，其CO

排放量占比达到93%；其次，在不同工序中，减排重点为土建工程，其碳排放占总体的85%；在碳排放量化过程中，对数据和情景两类不确定度进行计算。根据数据不确定度的结果可知，物化阶段CO

排放总量的变异系数为0.3%，结果数据可信度较高。根据情景不确定度的结果可知，运输阶段改变运距及柴油类型可减排39%，施工阶段改变用电类型可减排27%。

Abstract

One of the main substance that contributes to climate warming is CO

and the construction industry accounts for about 25% of the world's total CO

emissions. During the life cycle of a building

the stage with the largest average annual CO

emissions is the embodied stage. Therefore

it is important to study CO

emissions from the embodied stage of buildings. At the same time

the uncertainty analysis method was used because of the partial variability of data such as emission inventories due to human factors and the limitations of the technology level. In this paper

we decompose the building by sub-projects

quantify the CO

emissions of the embodied stage by combining specific unit processes

and then give the unit processes that need the most attention in emission reduction. Through the case study

it is found that the focus of carbon emission reduction in the embodied stage of the building is the material production phase

which accounts for 93% of CO

emissions. Next

among the different processes

the focus of emission reduction is civil engineering

whose carbon emissions account for 85% of the overall. Two types of uncertainties

data and scenario

are also calculated in the carbon emission quantification process. According to the results of data uncertainty

it can be seen that the coefficient of variation of the total CO

emissions in the embodied stage is 0.3%

and the confidence of the result data is high. According to the results of the scenario uncertainty

it is known that changing the distance and type of diesel fuel in the transportation stage can reduce carbon emissions by 39%

and changing the type of electricity used in the construction stage can reduce emissions by 27%.

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Keywords

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考虑土体参数不确定性的基桩多目标优化算法

办公建筑物化阶段CO₂排放研究

建筑物化阶段CO2排放及其不确定性分析

Analysis of CO2 emissions and uncertainties in the embodied stage of buildings

DOI：10.11835/j.issn.2096-6717.2021.243

摘要

Abstract

关键词

Keywords

references

建筑物化阶段CO₂排放及其不确定性分析

Analysis of CO₂ emissions and uncertainties in the embodied stage of buildings