Ecological effect life cycle assessment of house buildings based on emergy footprint model

Author:

He Mengyang,Wang Yang,Ma Haotian

Abstract

AbstractConstruction is an important sector for climate action. The construction, operation and maintenance, demolition and disposal stages of house buildings consume many resources and have a significant impact on society, the economy and the environment. To assess such efforts, we propose the emergy footprint model of house buildings, which can quantitatively analyse the ecological effect in the house buildings life cycle. The research shows the following. China’s ecological efficiency of the housing sector is characterized by improvement. In the house building fifty-year life cycle, the emergy footprint of the operation and maintenance stage is the largest (75.92%), followed by the construction stage (21.95%), but the emergy footprint intensity of the latter is 4.82 times that of the former. Reducing energy consumption and carbon dioxide emissions in the operation and maintenance stage is the key to reducing the life cycle emergy footprint of house buildings. The ecological impact coefficient of house buildings is negatively exponentially correlated with their service life. It reaches ecological break-even when the service period of the house building is equal to 36.73 years. If the house building is demolished after less than nine years of service, the impact is extremely unfavourable.

Funder

National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

Reference39 articles.

1. UNEP. 2022 Global Status Report for Buildings and Construction. https://www.unep.org/resources/publication/2022-global-status-report-buildings-and-construction (2022).

2. Duan, H. Y. et al. Characteristics of reginal energy consumption of China’s construction industry from the perspective of life cycle. J. China Popul. Resour. Environ. 30(7), 57–65 (2020).

3. National Statistical Office of China. China Statistical Yearbook 2022 (China Statistics Press, 2022).

4. Ministry of Industry and Information Technology of PRC. Operation of the steel industry from January to December 2020. https://wap.miit.gov.cn/gxsj/tjfx/yclgy/gt/art/2021/art_7e1abd4df2534112af929972244aa388.html (2021).

5. Ministry of Industry and Information Technology of PRC. Economic operation of building materials industry in 2020. https://wap.miit.gov.cn/gxsj/tjfx/yclgy/jc/art/2021/art_75dd98a372ed441b8aa53e952f390285.html (2021).

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