气候变化领域集成服务门户(CCPortal): Exploring carbon neutral potential in urban densification: A precinct perspective and scenario analysis

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DOI	10.3390/SU12124814
	Exploring carbon neutral potential in urban densification: A precinct perspective and scenario analysis
	Huang B.; Xing K.; Pullen S.; Liao L.
发表日期	2020
ISSN	20711050
卷号	12 期号:12
英文摘要	Decarbonising the urban built environment for reaching carbon neutrality is high on the agenda for many cities undergoing rapid expansion and densification. As an important urban form, precincts have been increasingly focused on as the context for urban redevelopment planning and at the forefront for trialling carbon reduction measures. However, due to interplays between the built forms and the occupancy, the carbon performance of a precinct is significantly affected by morphological variations, demographical changes, and renewable energy system deployment. Despite much research on the development of low-carbon precincts, there is limited analysis on aggregated effects of population growth, building energy efficiency, renewable energy penetration, and carbon reduction targets in relation to precinct carbon signature and carbon neutral potential for precinct redevelopment and decarbonisation planning. In this paper, an integrated carbon assessment model, including overall precinct carbon emissions and carbon offset contributed by precinct-scale renewable energy harvesting, is developed and applied to examine the lifecycle carbon signature of urban precincts. Using a case study on a residential precinct redevelopment, scenario analysis is employed to explore opportunities for decarbonising densification development and the carbon neutral potential. Results from scenario analysis indicate that redevelopment of buildings with higher-rated energy efficiency and increase of renewable energy penetration can have a long term positive impact on the carbon performance of urban precincts. Meanwhile, demographical factors in precinct evolution also have a strong influence on a precinct's carbon neutral potential. Whilst population size exerts upward pressure on total carbon emissions, changes in family types and associated consumption behaviour, such as travelling, can make positive contributions to carbon reduction. The analysis also highlights the significance of embodied carbon to the total carbon signature and the carbon reduction potential of a precinct during densification, reinforcing the notion that "develop with less" is as important as carbon offsetting measures for decarbonising the precinct toward carbon neutrality. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
英文关键词	Carbon neutral; Carbon offset; City evolution; Precinct dynamics; Renewable energy penetration
scopus关键词	alternative energy; carbon; carbon emission; energy efficiency; exploration; redevelopment; scenario analysis; urban area; urban development; urban planning; urban sprawl
来源期刊	Sustainability (Switzerland)
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176640
作者单位	School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, 410114, China; UniSA STEM, University of South Australia, Mawson Lakes, Adelaide, 5095, Australia
推荐引用方式 GB/T 7714	Huang B.,Xing K.,Pullen S.,et al. Exploring carbon neutral potential in urban densification: A precinct perspective and scenario analysis[J],2020,12(12).
APA	Huang B.,Xing K.,Pullen S.,&Liao L..(2020).Exploring carbon neutral potential in urban densification: A precinct perspective and scenario analysis.Sustainability (Switzerland),12(12).
MLA	Huang B.,et al."Exploring carbon neutral potential in urban densification: A precinct perspective and scenario analysis".Sustainability (Switzerland) 12.12(2020).