Audrey TanguyMines Saint-Etienne | ENSM-SE · Génie de l'Environnement pour les Organisations
PhD in Environmental Engineering
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Citations since 2017
15 Research Items
My work lies in the industrial ecology and environmental assessment fields. I look at how to model and assess the environmental impact of anthropogenic systems embedded in a specific regional context, characterized by a metabolism operating a several scales, and which is composed of different socio-technical layers (resources, technological means and actors). I develop decision-support methodologies to better understand these systems and to design scenarios of socio-ecological transformations.
May 2016 - present
- Course ENV 830 "Environmental Industrial Management" - Summer session Course ENV810 "Environmental System Dynamics" - Fall session
May 2014 - September 2015
- Life cycle assessment of flotation deinking processes for wastepaper (GaBi software)
September 2013 - present
- Research Assistant
- Course CTN766 "Environmental Impact Assessment" - Fall session
Low-tech approaches have come to the fore in the last few years, mainly in opposition to the techno-optimistic model proposed to solve current and future environmental crises. However, low-tech thinking is multifaceted, making the concept potentially rich but also vague. This article develops a seven-principle framework to categorize low-tech conce...
Building is affiliated with much of the social impact and benefits. However, for long term assessments that can capture indirect consequences, the current common attributional approach is lacking. The challenge become more obvious with large data amounts required to perform social life cycle assessment (S-LCA), and often less representative non sit...
The research in energy efficient and sustainable technologies for buildings is currently an important issue because of their high‐energy consumption. In this regard, VO2–based thermochromic windows are showing promising results in terms of their energy savings ability. However, no previous study has investigated their lifecycle environmental impact...
The circular economy is entirely in line with the European Commission’s long-term strategy aimed at moving toward an economy without any climate impact by 2050 (European Commission, 2018). Yet, to our knowledge, there is little work that analyzes the impact of the circular economy on CO2 emissions in Europe. The objective of this study is to analyz...
Buildings are accountable for much of the resource consumption and CO2 emissions generated from human activities. Nonetheless, the focus of building life cycle assessment (LCA) studies to evaluate the environmental footprint are more commonly adopted in an attributional approach. Nevertheless, understanding a direct and indirect consequences in lar...
Abstract Most self-proclaimed sustainable neighborhoods cover various concepts pertaining to the economic, social, environmental, and institutional pillars of sustainability. Depending on the developers’ motivations, these concepts can be integrated unevenly. This study develops a framework to characterise the gap between what is advocated as neces...
Highlights • A "political-industrial ecology" of energy metabolism is implemented and discussed • Article methods coupled quantitative and qualitative data to understand the politics of urban metabolism • Metabolic relationships between cities and their hinterlands are based on synergies and cooperation • Urban-rural metabolic relationships are als...
Urbanisme durable et économie circulaire sont deux notions au coeur des politiques publiques de la majorité des pays occidentaux. Néanmoins, leurs points de convergence et de divergence sont encore mal connus en raison: 1) d'un concept de "quartier durable" multifacette et difficile à appréhender, 2) d'une articulation encore floue entre circularit...
The role of territorial competitions in the energy transition By questioning the spatial organization of energy production and distribution systems, the energy transition significantly modifies intra- and inter-territorial relations, which are based on a dual logic of cooperation and competition. Power relationships among various stakeholders alter...
Industrial excess heat recovery has become a popular industrial ecology initiative because of its potential to replace fossil energy, especially for district heating applications. However, while a large body of literature addresses the feasibility of industrial excess heat use under an economic perspective [1-2], its environmental benefits are gene...
In an urban context, waste is a resource subject to a great spatial variability. This heterogeneity affects the planning of waste management activities because it alters their performance from one municipality/neighborhood/district to another. If not well apprehended at multiple scales, this variability can threaten the overall economic and environ...
Depuis le début des années 90, la gestion des déchets est devenue une gestion de «ressources» dont la valorisation permet de substituer en partie le besoin en ressources naturelles fossiles. Cette valorisation s'accompagne d'une logistique qu'il est nécessaire de planifier sur le territoire afin que les impacts additionnels associés aux activités d...
Waste recovery is an integrated part of municipal solid waste management systems but its strategic planning is still challenging. In particular, the service area size of facilities is a sensitive issue since its calculation depends on various factors related to treatment technologies (output products) and territorial features (sources waste product...
The design of waste management systems rarely accounts for the spatio-temporal evolution of the demand. However, recent studies suggest that this evolution affects the planning of waste management activities like the choice and location of treatment facilities. As a result, the transport structure could also be affected by these changes. The object...
Montreal has planned the installation of new anaerobic digestion plants by 2019, which will produce energy from waste that could contribute to reduce the city’s dependency on fossil fuels. However, the selective collection of small waste quantities to supply the plants increases the share of transport in the global costs, which threatens the effici...
Wastepaper recycling allows important material and energy savings. However, recycling still has an environmental impact. Indeed, for the air flotation deinking process, waste represent 20 to 30% of the inlet weight. To enhance the performance of the deinking process, an alternative flotation technique has been implemented, using ozone as a reactive...
Financial viability of waste management systems depends heavily on the cost of transport. Operational models are well known tools to optimize transport costs by minimizing distances (or time). Another approach is to optimize the transport network geometry. In this study, a waste collection model is developed based on the hierarchical formation of n...
The concept of low-tech manifests itself in a variety of ways in the academic literature as well as among designers, manufacturers, inventors, and users. It derives from a long history of research and experiments on the use of techniques and their effects on humans and society. But this literature is still scattered and the definition of what could be a low-tech approach is unclear, the risk being to see it reduced to one or two core principles. The objective of this work is to propose a multidimensional framework to understand the concept of low-tech.
- To develop a multiscale energy metabolism framework and analyze the roles of synergies - To assess the environmental benefits of synergies with life cycle assessment (LCA) and their limits
- Identification of neighbourhoods' most influential parameters on environmental impacts - Uncertainties analysis of LCA results - Regionalization procedure