Digital twin-enabled prefabrication supply chain for smart construction and carbon emissions evaluation in building projects

Since decoration is an essential part of buildings, the carbon emissions generated by decoration work should not be ignored. In recent years, prefabricated decoration has attracted much attention as efforts are made to pursue green, low-carbon, and waste-reducing buildings. However, research on carbon emissions assessment of prefabricated buildings has focused mainly on the structural aspect of prefabricated buildings, with few studies having considered prefabricated decoration. This study therefore focuses on assessing the carbon emissions of prefabricated decoration from the life cycle perspective of a case study residential building and explores the potential for reducing carbon emissions by decorating buildings with prefabricated components. The results show that using prefabricated decoration in the case study building reduced carbon emissions by 29.08% at the building material production stage compared to traditional decoration, and using an optimized design of prefabricated decoration, the building’s energy consumption over its design life could reduce carbon emissions by 1046 kgCO2/m2. These findings demonstrate the benefits of prefabrication decoration for reducing carbon emissions. This study provides decoration companies with robust data and insights to guide future decisions and practices, helping to transform and achieve the carbon neutrality goal for the building decoration industry.

Section: Prefabricated Construction Carbon Emissionsmentioning

confidence: 99%

Reducing Carbon Emissions from Prefabricated Decoration: A Case Study of Residential Buildings in China

Bian,

Liu,

Zuo

et al. 2024

“…Digital twin technology provides a new framework for the integration and application of various information technologies in the process of building construction and the realization of intelligent construction. At present, the study and application of digital twins is mainly focused on manufacturing, machinery, and other fields [40]. In the field of architecture, scholars in the field of civil engineering have carried out corresponding research and explorations and have proposed digital twin application frameworks for pre-fabricated buildings, building operation and maintenance, and so on.…”

Section: Research Gaps and Organizational Structuresmentioning

confidence: 99%

Digital Twin Model and Its Establishment Method for Steel Structure Construction Processes

Liu,

Lin

2024

At present, the informatization level in the construction process of steel structures is relatively low. Meanwhile, digital twin technology, with better interactive features, provides a new development direction for the intelligent construction of steel structures. Therefore, this paper introduces the concept of a digital twin into the steel structure construction process, analyzes the connotation and characteristics of the digital twin model, and proposes the digital twin model architecture for steel structure construction processes. Furthermore, a method for establishing a digital twin model for steel structure construction processes is presented, which includes three stages: the acquisition and transmission of physical space data, the construction of a digital twin virtual model, and information exchange in the digital twin model. Based on these concepts, this paper describes a digital twin system architecture for the steel structure construction process from the perspective of data flow in the digital twin model. Finally, with the application of information technology in the steel structure construction process of the university park library project in Xiongan New Area and the reconstruction and expansion project of the Nanchong Gaoping airport, the digital twin model and its establishment method methods are analyzed practically and demonstrated effectively in this study.

“…Hence, two close topics such as "carbon emission" and "calculation model" indicate that both topics have been studied frequently and therefore have a strong connection between them. On the contrary, although energy carbon emissions from fossil fuels consumed in building construction are critical to building construction, the long distance between carbon-related topics and energy carbon emission factors demonstrates that the carbon emissions research theme is yet to gain popularity in the application of energy and carbon emission factors [40].…”

Section: Quantitative Analysis Of the Main Source Journalsmentioning

confidence: 99%

A Review of Building Carbon Emission Accounting Methods under Low-Carbon Building Background

Xiong,

Wang,

Mao

et al. 2024

With the continuous development of the global economy, carbon dioxide and other greenhouse gas emissions are persistently increasing, making global warming an indisputable fact. As a high-energy consuming industry, the building industry has gradually emerged as the primary source of greenhouse gas emissions during urban expansion. Consequently, countries are exploring sustainable development pathways for low-carbon buildings to minimize the detrimental impact caused by the construction industry. This paper summarizes the current status of low-carbon building development and, through literature analysis concerning carbon standard systems and carbon emission accountings, discusses the challenges and possible improvements for the future. Establishing a quantitative evaluation tool for carbon emissions and elucidating accounting methods in the construction field is fundamental and a prerequisite for comprehensively studying low-carbon buildings throughout their life cycle. The challenges of low-carbon building development are as follows: (1) lack of a set of carbon emission measurement standards that can be commonly used internationally, (2) lack of a deep and systematic study of the theory of carbon emission accountings and (3) difficulty in recognizing carbon emission boundaries and related data for existing carbon emission accounting methods. This paper provides a comprehensive analysis of the current progress in low-carbon building development, along with an examination and optimization of the application of carbon emission accounting methodologies within construction to address the challenges.