Exergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study

The construction of bridge is a complex process and involves diverse energy emission-intensive materials. The evaluation of environmental impacts on the basis of life cycle assessment (LCA) is a recognised technique to find the scope of impact mitigation and save resources. However, the studies on t...

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Autores principales:	Mingjun Ma, Ziqiao Li, Kai Xue, Meng Liu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	exergy footprint highway bridge environmental sustainability bridge life cycle exergy assessment Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/37756cde1f15498caad0c7d3cb089bba
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spelling	oai:doaj.org-article:37756cde1f15498caad0c7d3cb089bba2021-11-11T19:30:43ZExergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study10.3390/su1321118042071-1050https://doaj.org/article/37756cde1f15498caad0c7d3cb089bba2021-10-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/21/11804https://doaj.org/toc/2071-1050The construction of bridge is a complex process and involves diverse energy emission-intensive materials. The evaluation of environmental impacts on the basis of life cycle assessment (LCA) is a recognised technique to find the scope of impact mitigation and save resources. However, the studies on the LCA of bridges are rare and lack assessment on the impact of public transportation during bridge construction. The purpose of this study was to develop an integrated exergy-based LCA model for assessing the environmental sustainability of bridges by investigating their environmental impacts and exergy footprint. The proposed exergy-based LCA model consists of three principal assessment models, namely, the environmental impact of energy consumption, pollutant discharge, and resource consumption. The proposed model was then exemplified with a highway bridge as a case study. The results found that the environmental impact in the raw material production and processing stage was the largest, followed by the construction stage and the operation and maintenance stage at second and third place, respectively. The findings of this study can contribute to mitigating the environmental impacts of bridge construction, and the assessment approach can be adopted to guide the environmental impact evaluation for other types of civil constructions globally.Mingjun MaZiqiao LiKai XueMeng LiuMDPI AGarticleexergy footprinthighway bridgeenvironmental sustainabilitybridge life cycleexergy assessmentEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 11804, p 11804 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	exergy footprint highway bridge environmental sustainability bridge life cycle exergy assessment Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	exergy footprint highway bridge environmental sustainability bridge life cycle exergy assessment Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Mingjun Ma Ziqiao Li Kai Xue Meng Liu Exergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study
description	The construction of bridge is a complex process and involves diverse energy emission-intensive materials. The evaluation of environmental impacts on the basis of life cycle assessment (LCA) is a recognised technique to find the scope of impact mitigation and save resources. However, the studies on the LCA of bridges are rare and lack assessment on the impact of public transportation during bridge construction. The purpose of this study was to develop an integrated exergy-based LCA model for assessing the environmental sustainability of bridges by investigating their environmental impacts and exergy footprint. The proposed exergy-based LCA model consists of three principal assessment models, namely, the environmental impact of energy consumption, pollutant discharge, and resource consumption. The proposed model was then exemplified with a highway bridge as a case study. The results found that the environmental impact in the raw material production and processing stage was the largest, followed by the construction stage and the operation and maintenance stage at second and third place, respectively. The findings of this study can contribute to mitigating the environmental impacts of bridge construction, and the assessment approach can be adopted to guide the environmental impact evaluation for other types of civil constructions globally.
format	article
author	Mingjun Ma Ziqiao Li Kai Xue Meng Liu
author_facet	Mingjun Ma Ziqiao Li Kai Xue Meng Liu
author_sort	Mingjun Ma
title	Exergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study
title_short	Exergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study
title_full	Exergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study
title_fullStr	Exergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study
title_full_unstemmed	Exergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study
title_sort	exergy-based life cycle assessment model for evaluating the environmental impact of bridge: principle and case study
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/37756cde1f15498caad0c7d3cb089bba
work_keys_str_mv	AT mingjunma exergybasedlifecycleassessmentmodelforevaluatingtheenvironmentalimpactofbridgeprincipleandcasestudy AT ziqiaoli exergybasedlifecycleassessmentmodelforevaluatingtheenvironmentalimpactofbridgeprincipleandcasestudy AT kaixue exergybasedlifecycleassessmentmodelforevaluatingtheenvironmentalimpactofbridgeprincipleandcasestudy AT mengliu exergybasedlifecycleassessmentmodelforevaluatingtheenvironmentalimpactofbridgeprincipleandcasestudy
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Exergy-Based Life Cycle Assessment Model for Evaluating the Environmental Impact of Bridge: Principle and Case Study

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