• Le 13 November 2014
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  • Ecole Centrale de Nantes, amphi B9, 13h

The PhD was financed by Ademe and région Pays de la Loire. It was conducted at Ifsttar, directed by Anne VENTURA (University de Nantes, Institute for Civil engineering and mechanics, team IEG, chaire of civil engineering and eco-construction) and co-directed by Bogdan CAZACLIU (Ifsttar).

The work was also scientifically supported by Hayo VAN DER WERF (INRA Rennes), Rachida IDIR (Cerema Ile de France), Tristan SENGA KIESSE
(University de Nantes, Institute for Civil engineering and mechanics, team IEG, chaire of civil engineering and eco-construction) and Philippe POULLAIN (University de Nantes, Institute for Civil engineering and mechanics, team IEG).

The members of the
jury are:

 
Isabelle BLANC, Maitre de recherche, Mines Paristech et Bernard YANNOU, Professeur, Ecole centrale Paris, Gilles ESCADEILLAS, Professeur, INSA de Toulouse, Denis BREYSSE, Professeur, Université de Bordeaux, Rachida IDIR, Chargée de recherche, CEREMA, Emmanuel ROZIERE, Maître de conférence, Ecole Centrale de Nantes


Abstract:


The availability of natural resources and the hope of a healthy environment, bring human to be conscientious on their environmental impact. Born from these aspects the concept of sustainable development, a development allowing us to meet our needs and also allowing the future generation to meet their own. This objective is like a bird's nest, where every twig brings its contribution. A multitude of approach and methods exists in order to reach this goal, a big one of them is the eco-design approach. It is an approach, where the objective is to consider the environmental aspect during the conception of a product or service, by the way of other aspects like technical or others. But the existence of a numerous approach makes the choice of method by the designer difficult, and can be rebuttal for them. Add to that, some limitations of certain of the existing approach do not permit us to confirm if the objectives of sustainable development were really attained.

We hope to bring our twig for sustainable development in this research work. We established then an eco-design approach, combining the most established environmental evaluation method Life Cycle Assessment (LCA) with sensitivity analysis approach. The approach permits us then to identify all technological options, which can optimize potentially the environmental impacts of the studied system. Our application considering the life cycle of a building insulator from hemp, showed the efficiency of our approach providing us technological options for eco-design but also showed us the identified limitations.