An improved carbon emission calculation framework of precast concrete column in construction stage based on LCA

IF 1 4区 工程技术 Q3 ENGINEERING, MULTIDISCIPLINARY
Lian Xue, Chaoran Li, Yimin Jin
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引用次数: 2

Abstract

ABSTRACT The abundant carbon emissions generated by the construction industry have gradually become a significant problem. Rather than employing traditional construction methods, the industrialized building system adopts the efficient on-site assembly of prefabricated components, which provides a new solution for reducing industry carbon emissions. Currently, great differences exist in the life cycle assessment schemes for prefabricated buildings and components, which requires considering many different factors. The accuracy and applicability of the results must therefore be improved. In this study, an improved life cycle calculation framework is proposed to assess the carbon emissions of prefabricated concrete columns in the construction stage. Based on the commonly used calculation methods of carbon emission factors, the framework uses a new calculation method with more considerations for vehicle transportation and uses the consumer lifestyle method to estimate construction workers’ carbon emissions. The framework also fully considers the loss of components in the transportation process. The calculated results are compared with the traditional carbon emission factor calculation methods. Overall, the results for the framework are relatively significant because they more comprehensively consider various factors when compared to results using the traditional calculation methods.
改进的基于LCA的预制混凝土柱施工阶段碳排放计算框架
建筑业产生的大量碳排放已逐渐成为一个重大问题。工业化建筑体系不采用传统的施工方法,而是采用预制构件的高效现场组装,为减少工业碳排放提供了新的解决方案。目前,装配式建筑及构件的生命周期评估方案存在较大差异,需要考虑的因素很多。因此,必须提高结果的准确性和适用性。本文提出了一种改进的生命周期计算框架来评估预制混凝土柱在施工阶段的碳排放。在现有碳排放因子计算方法的基础上,采用了更多考虑车辆运输的新的计算方法,采用消费者生活方式法估算建筑工人的碳排放量。该框架还充分考虑了部件在运输过程中的损耗。计算结果与传统的碳排放因子计算方法进行了比较。总的来说,与传统计算方法的结果相比,该框架的结果更全面地考虑了各种因素,因此结果相对重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of the Chinese Institute of Engineers
Journal of the Chinese Institute of Engineers 工程技术-工程:综合
CiteScore
2.30
自引率
9.10%
发文量
57
审稿时长
6.8 months
期刊介绍: Encompassing a wide range of engineering disciplines and industrial applications, JCIE includes the following topics: 1.Chemical engineering 2.Civil engineering 3.Computer engineering 4.Electrical engineering 5.Electronics 6.Mechanical engineering and fields related to the above.
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