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Conception et étude d’infrastructures de transports à énergie positive : de la modélisation thermomécanique à l’optimisation de tels systèmes énergétiques

Abstract : In the context of the energy transition, with the use of new energies as a priority, we propose to study the energy performance of solar hybrid roads. An exhaustive study of climatic conditions makes it possible to establish the energy gains and losses of these systems, then a numerical model is developed to couple thermal diffusion, hydraulic convection and radiative transfers by the finite element method with the possibility of state changes. This model is implemented in a Matlab core and applied to annual meteorological data for different cities to establish and map energy potential. An analysis of the results with regard to climate makes it possible to highlight a link between this potential and the notion of a unified degree day, adapted from the building's thermal energy, thus allowing the engineer to quickly estimate the energy potential based on climatic data. During winter operation, the objective is to prevent from black ice occurring on the roads. A temperature control strategy based on the adjoint state method is implemented. A climate analysis is again carried out to take humidity into account to determine heating needs. Other frost protection solutions, based on electric heating, were also modelled and subjected to these control strategies in order to highlight the possibility of significant energy savings. These control laws have beengeneralized to problems of property reconstruction in a background and an application combining this thermal approach with an electromagnetism-based approach is proposed.
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Submitted on : Tuesday, December 18, 2018 - 4:15:07 PM
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Nicolas Le Touz. Conception et étude d’infrastructures de transports à énergie positive : de la modélisation thermomécanique à l’optimisation de tels systèmes énergétiques. Thermique [physics.class-ph]. École centrale de Nantes, 2018. Français. ⟨NNT : 2018ECDN0038⟩. ⟨tel-01959310⟩

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