Statistical analysis of embodied carbon emission for building construction

Kang, Gyuseong; Kim, Tae-Hoon; Kim, Young Kook; Cho, Hunhee; Kang, Kyung-In

doi:10.1016/j.enbuild.2015.07.058

Cited by 66 publications

(24 citation statements)

References 16 publications

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“…Previous studies have estimated only the amount of CO 2 emissions from construction equipment based on the amount of oil the equipment consumes. In addition, the variability in embodied carbon emissions of various building types has been explored [20,21]. However, there is still a lack of statistical information for the activity data for construction.…”

Section: Literature Reviewmentioning

confidence: 99%

Stochastic Analysis of Embodied Carbon Dioxide Emissions Considering Variability of Construction Sites

et al. 2019

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The current method of estimating CO 2 emissions during the construction phase does not consider the variability that can occur in actual work. Therefore, this study aims at probabilistic CO 2 estimation dealing with the statistical characteristics in activity data of building construction work, focused on concrete pouring work and based on field data. The probabilistically estimated CO 2 emissions have some differences from CO 2 emissions measured by current deterministic methods. The results revealed that the minimum difference was 11.4%, and the maximum difference was 132.7%. This study also used Monte Carlo simulations to derive information on a probability model of CO 2 emissions. Results of the analysis revealed that there is a risk of underestimating emissions because the amount of emissions was estimated at a level that exceeds the 95% confidence interval of the simulation results. In addition, the probability that CO 2 emissions using the measured activities data were less than the estimated CO 2 emissions using the bill of quantity was 73.2% in the probability distribution model.

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Section: Literature Reviewmentioning

confidence: 99%

Stochastic Analysis of Embodied Carbon Dioxide Emissions Considering Variability of Construction Sites

et al. 2019

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“…Most global policy has a tendency to focus on reducing OC since the majority of carbon emissions arise from the building usage [15]. However, recent studies have shown the growing significance of EC because much effort has already been invested into reducing OC [16]. Anand and Amor [5] showed that the research related to embodied energy has been significantly increased in recent years.…”

Section: Literature Reviewmentioning

confidence: 99%

Dynamic Lifecycle Assessment in Building Construction Projects: Focusing on Embodied Emissions

2019

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Understanding the structure and behavior of emissions in building systems is the first step toward improving the reliability of the environmental impact assessment of buildings. The shortcomings of current building lifecycle assessment (LCA) research is the lack of understanding of embodied emissions and static analysis. This study presents a methodology for the dynamic LCA of buildings, combined with the system dynamics technique. Dynamic factors related to recurrent embodied emissions are explored through a literature review. Applying the dynamic factors based on the review, a causal map and stock-flow diagram are invented. Collecting the field data and establishing the assumptions based on the literature, a case study is performed for the proposed model. As a result, through dynamic analysis, it was found that recurrent embodied emissions have a considerably different behavior from static ones during their whole life. Additionally, it was found that the environmental impacts changed by more than 10%, according to the variation of the users’ required performance level in sensitivity analysis. This result thoroughly addressed the necessity and appropriateness of dynamic LCA. The dynamic LCA model developed in this study can contribute to the long-term behavioral understanding of the embodied environmental impacts of building LCA.

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“…To develop a comprehensive understanding of carbon emission flows, the concept of ECE has been previously introduced to help researchers analyze carbon emissions across the entire production and consumption lifecycle. Many researchers have focused on ECE accounting studies, including international [30,31], interprovincial [32,33] and industrial-level accounting [34,35], which provided detailed data for decision makers to help them implement climate policy from a consumption-based perspective [17,36]. In addition, some researchers have developed an ecological network based on certain material flows to determine the specific ecological relationships in a carbon emission trade.…”

Section: Literature Reviewmentioning

confidence: 99%

Characterizing the Embodied Carbon Emissions Flows and Ecological Relationships among Four Chinese Megacities and Other Provinces

et al. 2019

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China has been undergoing a rapid process of urbanization. The urbanization rate, increased from 35% in 2000 to 59.58% in 2018, and is expected to increase to 70% by 2030. As Chinese cities consumed approximately 77% of China’s total energy and emitted about 81% of all carbon emissions in 2017, it has become increasingly necessary to quantitatively analyze city-level carbon emissions and related issues. The present study adopted single regional and multi-regional input-output (MRIO) models to analyze the features of four Chinese municipalities (Beijing, Tianjin, Shanghai and Chongqing) and calculate their embodied carbon emissions (ECE). In addition, we used ecological relationship concepts to analyze the relationships between those municipalities and other regions based on ECE flows through an ecological network analysis (ENA) model. The results show that all four megacities were net importers of ECE, and their imported ECE typically flowed from nearby geographic regions. In addition, exploitation was the main ecological relationship between these four megacities and China’s other regions. Knowing the detailed data related to ECE, ECE flows and the ecological relationships among these megacities could help policymakers establish more comprehensive environment-related policies, which are crucial for achieving sustainable development targets.

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Statistical analysis of embodied carbon emission for building construction

Cited by 66 publications

References 16 publications

Stochastic Analysis of Embodied Carbon Dioxide Emissions Considering Variability of Construction Sites

Stochastic Analysis of Embodied Carbon Dioxide Emissions Considering Variability of Construction Sites

Dynamic Lifecycle Assessment in Building Construction Projects: Focusing on Embodied Emissions

Characterizing the Embodied Carbon Emissions Flows and Ecological Relationships among Four Chinese Megacities and Other Provinces

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