A semantic study of the Emergy Sustainability Index in the hybrid lifecycle-emergy framework

Arbault, Damien; Rugani, Benedetto; Tiruta-Barna, Ligia; Benetto, Enrico

doi:10.1016/j.ecolind.2014.02.029

Cited by 24 publications

(10 citation statements)

References 78 publications

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“…In particular, life cycle assessment (LCA) methods share with emergy analysis the use of inventory tables for input flows . In the recent literature, the combined use of emergy-based and LCA approaches has been explored, underlining the respective features and complementarities. − LCA-based approaches start from a definite pragmatic and user-side perspective, with a clear focus on human-controlled processes and systems. Impacts are described along a linear cause–effect chain at different points (midpoint versus end-point analysis), while the environment is usually regarded as a source of raw materials and energy and a receiver of waste and emissions.…”

Section: The Emergy Analysismentioning

confidence: 99%

Systems Thinking: Adopting an Emergy Perspective as a Tool for Teaching Green Chemistry

2019

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Green chemistry is the name of a need, that of encompassing chemistry research and the environmental, safety, health, and societal issues that have been creating unprecedent concerns at a global level. Green chemistry is a modern concept, as the label that represents the entry of chemical sciences in the realm of integrated sustainability studies. To do green chemistry research, we need approaches that take into account the use and availability of resources, as well as the direct or indirect impacts of the applications of new chemistry. Systems thinking is a powerful mindset for addressing the complexity of the interconnections between the traditional and the new aspects of chemistry research. Systems thinking can provide suitable and appropriate conceptual tools for the research, requiring that chemistry teaching provides the necessary familiarity with systemic concepts and practices. In this paper, an emergy (spelled with "m") perspective is presented as suitable to address the green chemistry didactics toward a systemic conceptual framework, which is now more and more mandatory.

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Section: The Emergy Analysismentioning

confidence: 99%

Systems Thinking: Adopting an Emergy Perspective as a Tool for Teaching Green Chemistry

2019

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“…To overcome above-mentioned problems, this study proposes an emergy-based conversion efficiency model for the machining systems that helps to improve the energy and material's utilization, and to reduce the cost and environmental emissions. The emergy theory is an eco-economic value theory and a systematic analysis method [38], which can be applied to evaluate the environmental sustainability for various types of systems [39]. Emergy is also used in the field of industrial manufacturing.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method of Sustainability Evaluation in Machining Processes

et al. 2019

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In order to quantitatively evaluate and improve the sustainability of machining systems, this paper presents an emergy (the amount of energy consumed in direct and indirect transformations to make a product or service) based sustainability evaluation and improvement method for machining systems, contributing to the improvement of energy efficiency, resource efficiency and environmental performance, and realizing the sustainability development. First, the driver and challenge are studied, and the scope and hypothesis of the sustainable machining system are illustrated. Then, the emergy-based conversion efficiency model is proposed, which are (1) effective emergy utilization rate (EEUR), (2) emergy efficiency of unit product (EEUP) and (3) emergy conversion efficiency (ECE), to measure and evaluate the sustainable machining system from the perspectives of energy, resource and environment. Finally, the proposed model is applied to a vehicle-bridge machining process, and the results show that this paper provides the theoretical and method support for evaluating and improving the sustainable machining processes to decouple the resources and development of the manufacturing industry.

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“…Emergy-based indicators such as the Emergy Yield Ratio (EYR) and the Environmental Loading Ratio (ELR) are commonly used to illustrate the relative worth of a material and the intensity of human development around the exploitation of environmental resources [60]. On this basis, several studies extended these basic indicators to more complex emergy indices to analyze the impacts of metabolism flows at the settlement/building level [11,61,62].…”

Section: Metabolism Sustainability Indices Development and Comprehensmentioning

confidence: 99%

Sustainability and Chinese Urban Settlements: Extending the Metabolism Model of Emergy Evaluation

et al. 2016

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Anthropogenic activity interacts with urban form and inner metabolic processes, ultimately impacting urban sustainability. China's cities have experienced many environmental issues and metabolic disturbances since the nation-wide market-oriented "reform and opening-up" policy was adopted in the 1980s. To analyze urban reform policy impacts and metabolism sustainability at a settlement scale, this study provides an integrated analysis to evaluate settlement metabolism and sustainability using a combination of emergy analysis and sustainability indicators based on scrutiny of two typical settlements (one pre-and one post-reform). The results reveal that housing reform policy stimulated better planning and construction, thereby improving built environmental quality, mixed functional land use, and residential livability. The pre-reform work-unit settlements are comparatively denser in per capita area but have less mixed land use. Housing reform has spatially changed the work-housing balance and increased commuting travel demand. However, short commuting distances in pre-reform settlements will not always decrease overall motor vehicle usage. Integrating non-commuting transport with local mixed land-use functional planning is a necessary foundation for sustainable urban design. Functional planning should provide convenient facilities and infrastructure, green space, and a suitable household density, and allow for short travel distances; these characteristics are all present in the post-reform settlement.

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A semantic study of the Emergy Sustainability Index in the hybrid lifecycle-emergy framework

Cited by 24 publications

References 78 publications

Systems Thinking: Adopting an Emergy Perspective as a Tool for Teaching Green Chemistry

Systems Thinking: Adopting an Emergy Perspective as a Tool for Teaching Green Chemistry

A Novel Method of Sustainability Evaluation in Machining Processes

Sustainability and Chinese Urban Settlements: Extending the Metabolism Model of Emergy Evaluation

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