Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/163388
Title: A conceptual framework for estimating building embodied carbon based on digital twin technology and life cycle assessment
Authors: Chen, Chen
Zhao, Zengfeng
Xiao, Jianzhuang
Tiong, Robert
Keywords: Engineering::Civil engineering
Issue Date: 2021
Source: Chen, C., Zhao, Z., Xiao, J. & Tiong, R. (2021). A conceptual framework for estimating building embodied carbon based on digital twin technology and life cycle assessment. Sustainability, 13(24), 13875-. https://dx.doi.org/10.3390/su132413875
Journal: Sustainability
Abstract: Low-carbon building design requests an estimation of total embodied carbon as the environmental performance metric for comparison of different design options in early design stages. Due to a lack of consensus on the system boundaries in building life cycle assessment (LCA), the carbon estimation results obtained by the current methods are often disputable. In this regard, this paper proposes a method for estimating building embodied carbon based on digital twin technology and LCA. The proposed method is advantageous over others by providing (1) a cradle-to-cradle LCA and (2) an automated data communication between LCA and building information modelling (BIM) databases. Because data for the processes in the life cycle are collected via digital twin technology in a standard and consistent way, the obtained results will be considered credible. So far, a conceptual framework is developed based on a comprehensive literature review, which consists of three parts. In the first part, formulas for LCA are given. In the second part, a hybrid approach combining semantic web with a relational database for BIM and radio-frequency identification (RFID) integration is described. In the third part, how to design the LCA database and how to link LCA with BIM are described. The conceptual framework proposed is tested for its reasonableness by a small hypothetical case study.
URI: https://hdl.handle.net/10356/163388
ISSN: 2071-1050
DOI: 10.3390/su132413875
Schools: School of Civil and Environmental Engineering 
Rights: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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