Sustainability Study of a Residential Building near Subway Based on LCA-Emergy Method

Chen, Xinnan; Wang, Hairuo; Zhang, Junxue; Zhang, He; Asutosh, Ashish; Wu, Guodong; Wei, Guobin; Shi, Yaling; Yang, Mei

doi:10.3390/buildings12050679

Cited by 8 publications

(18 citation statements)

References 66 publications

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“…The proportions of emergy value in the other four stages decrease to a certain extent, especially in the material production stage and construction stage. The unit emergy value reference can be found in the literature [19].…”

Section: Resultsmentioning

confidence: 99%

“…Design strategy A revolves around green vegetation, including measures such as vertical landscape walls, rooftop gardens, and sunken plaza gardens. Design strategy B empha- The unit emergy value reference can be found in the literature [19].…”

Section: Sustainable Renewal Strategymentioning

confidence: 99%

“…As this study involves the emergy analysis of the entire life cycles of building systems, relevant research regarding the relationship between building systems and LCA-emergy methods has been reviewed. Currently, there is limited research in this area, mainly focusing on the emergy analysis of the entire life cycles of building systems [19], renewal design strategies for building systems [20], and the impact of the energy embodied in building materials on the sustainability of building systems [21].…”

Section: Introductionmentioning

confidence: 99%

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A Study on Ecological Emergy and Carbon-Emissions-Coupling Sustainability of Building Systems

Wang,

Yan,

Zhang

et al. 2023

Sustainability

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In the face of the increasingly deteriorating global environment, the sustainability of building systems has become a major research topic. This paper presents sustainability research on large-scale building cases from the perspectives of ecological emergy value and carbon emissions. Specifically, by calculating the emergy value and carbon emissions throughout the entire life cycle of the building system, a quantitative analysis of sustainability based on the LCA–emergy–carbon-emissions framework is completed. The results indicate that from the perspectives of both emergy value (over 80%) and carbon emissions (over 90%), the operational stage and the building-material-production stage are the controlling factors. Retrofit design strategies help enhance the sustainability performance of the building system, but different types of design strategies have different effects. The landscape-transformation-design strategy (strategy A) significantly improves the ecological sustainability of the building system, the equipment-improvement strategy (strategy B) helps reduce the carbon emissions of the building system, while the infrastructure-renewal strategy not only has a weaker impact on sustainability improvement but also generates the highest carbon emissions. Additionally, with the aim of controlling carbon emissions, the integration of solar clean energy sources contributes to the overall sustainability of the building system, providing references for architects and building managers.

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Section: Resultsmentioning

confidence: 99%

Section: Sustainable Renewal Strategymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Study on Ecological Emergy and Carbon-Emissions-Coupling Sustainability of Building Systems

Wang,

Yan,

Zhang

et al. 2023

Sustainability

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“…To enhance the sustainability and emergy performance of the entire building system, it is crucial to pay specific attention and conduct a thorough analysis of the building operation stage. For reference regarding unit emergy values, the literature [19] provides the necessary information. In Figure 7, as the lifespan of the building system increases, the emergy proportion at the building operation stage increases.…”

Section: Dominated Contributor Of Five Processesmentioning

confidence: 99%

“…The whole life cycle emergy framework is also significant for the sustainable design of building systems. Applying such methods enables the comprehensive assessment of various inputs in building systems; effective calculations of energy flow, material flow, and information flow; and optimization of sustainable building designs [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Environmental Processes Assessment of a Building System Based on LCA–Emergy–Carbon Footprint Methodology

Wang,

Huang,

Zhang

et al. 2023

Processes

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Sustainable architecture holds research significance as a necessary approach to address climate change. However, the lack of a clear definition and diverse research methods present obstacles in this field. To overcome these challenges, this study adopts an integrated approach that combines ecological and low-carbon aspects and considers the entire life cycle system. The highlight of this article is the integration of two research methods to assess the sustainability of a building system from both ecological and carbon footprint perspectives. This approach has not been extensively explored by researchers thus far. The aim is to quantitatively explore and evaluate the sustainability performance of building systems. The research findings reveal that, among the five life cycle stages, the operational stage of a building exhibits the highest proportions of emergy consumption and carbon emissions, accounting for approximately 89.4% and 90%, respectively. From an emergy analysis perspective, newly constructed building systems demonstrate qualified sustainable parameters (Emergy Sustainability Indicator (ESI) = 2.7 > 1)). However, as the building system ages and operates over time, the overall sustainable parameters gradually decrease, eventually becoming unqualified. Furthermore, carbon emissions analysis indicates that total carbon emissions accelerate with the aging of the building, highlighting the necessity of continuous inputs of material flow, energy flow, and information flow to maintain the building system’s sustainability. The cross-feedback model emerges as the most effective correction method among the input processes, although data collection poses a challenge due to its nonlinearity. This study provides a fresh perspective for architects and building managers, offering insights that contribute to mitigating climate change and promoting sustainable practices in the built environment.

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A Sustainability Analysis Based on the LCA–Emergy–Carbon Emission Approach in the Building System

Zhang,

Asutosh

2023

Applied Sciences

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Ecologically sustainable buildings and their carbon emissions are two popular ideas for building life cycle systems. It is a challenge to comprehensively assess the sustainability of building cases using two different methods. Based on over a decade of research, this paper attempts to explore the possibility of quantitatively integrating both approaches. In this study, we adopted the emergy method and carbon emission approach to assess and analyze a building system. In particular, similarities and differences have been identified through emergy and carbon emissions at each stage of the building’s whole life cycle. The results demonstrate that the building operation phase is the critical contributor (Approximately 79.6% of the total emergy and 97.9% of the entire carbon emission), which occupies the most emergy and carbon emission amounts of the whole building system. In order to improve the ecological sustainability of the building system, renewable energy subsystems are considered and explored. While the overall sustainability of the building system is enhanced, the new systems will aggrandize the carbon emissions. Therefore, the ecological sustainability of building systems and carbon emissions should be considered comprehensively, and the relationship between the two views needs to be balanced.

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Sustainability Study of a Residential Building near Subway Based on LCA-Emergy Method

Cited by 8 publications

References 66 publications

A Study on Ecological Emergy and Carbon-Emissions-Coupling Sustainability of Building Systems

A Study on Ecological Emergy and Carbon-Emissions-Coupling Sustainability of Building Systems

Environmental Processes Assessment of a Building System Based on LCA–Emergy–Carbon Footprint Methodology

A Sustainability Analysis Based on the LCA–Emergy–Carbon Emission Approach in the Building System

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