Literatura científica selecionada sobre o tema "Conversion d'énergie solaire"
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Teses / dissertações sobre o assunto "Conversion d'énergie solaire"
Matt, Benjamin. "Polyoxométallates hybrides organiques/inorganiques pour la conversion d'énergie solaire en énergie chimique". Paris 6, 2012. http://www.theses.fr/2012PA066427.
Texto completo da fonteEnvironmental challenges represent main societal, economical and political issues. As a consequence, many countries committed themselves to develop new strategies in terms of sustainable energy sources. This Ph. D work takes part into this specific context. In such a situation, we sought to elaborate organic-inorganic hybrid systems that are based on polyoxometalates (POMs). These systems can efficiently collect visible light to induce photocumulative electron transfer. The approach in this work is based on the covalent grafting of a chromophore moiety onto different types of POMs in order to consider catalytic and multi-electronic processes such as the reduction of protons into dihydrogen. At first, we developed synthetic methodologies and purification processes to prepare different types of hybrid POMs by covalent linking. Then, organic and organometallic chromophores have been prepared. The later led to the synthesis of POM based dyads following the coupling methodologies previously established. The photophysical properties of these new compounds were studied and the results shone light on the occurrence of charge separation states. At last, in order to value such molecules into functional devices for artificial photosynthesis, it is compulsory to go through a step of integration. This perspective led us to think about other types of hybrid compounds, which can give rise to new and original properties after surface confinement
Notton, Gilles. "Contribution à l'étude des systèmes de production autonome d'énergie utilisant la conversion photovoltaique". Corte, 1992. http://www.theses.fr/1992CORT3005.
Texto completo da fonteBonnelle, Denis. "Tour solaire, tour à vaporisation d'eau, et modes de conversion d'énergie renouvelable : présentation, critiques et suggestions". Lyon 1, 2004. http://www.theses.fr/2004LYO10129.
Texto completo da fonteFlitris, Yannis. "Transferts de chaleur à haute température paroi-lit fluidisé de particules de diamètre intermédiaire : application à la conversion de l'énergie solaire". Perpignan, 1988. http://www.theses.fr/1988PERP0070.
Texto completo da fonteIzzo, Pascal. "Etude d'un circuit électronique et algorithmique destiné à la gestion de systèmes autonomes de production d'énergie photovoltai͏̈que". Montpellier 2, 2002. http://www.theses.fr/2002MON20150.
Texto completo da fonteCarrillo, Arcos Ulises Alonso. "Iron-based photoactive complexes : control of geometry and electronic properties". Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0087.
Texto completo da fonteThe interest of organometallic complexes for optical applications such as luminescent materials, photosensitizers, photocatalysts, biomaterials or nanomaterials for optoelectronics continues to grow. The development of such applications involves the careful design of metal complexes with appropriate photophysical properties to ensure efficient light collection based on intense and wide absorption, exciton generation in the condensed phase and charge transfer to the excited state. Consequently, the properties of the excited state in terms of energy and lifetime determine the functional performance of the molecules and, therefore, the nanostructures or devices made up of these molecular units. The aim of the thesis is to develop photoactive compounds from inexpensive and environmentally friendly metal complexes. While ruthenium-based complexes have been widely studied and used in many laboratory applications because of their ideal photophysical properties, ruthenium is a rare, toxic and expensive metal, which limits actual industrial development. This doctoral work aims to replace this metal with iron, a strategic metal in the search for low-cost devices and industrial processes that conserve resources. In particular, we are targeting the development of photosensitizers for solar energy conversion. However, the replacement of ruthenium with iron represents a significant challenge and is actively sought. In fact, unlike ruthenium, the iron complexes exhibit an ultra-fast non-radiative deactivation of 1,3MLCT (metal-ligand charge transfer) states in the low-energy 5T2 quintuplet centered on the metal, making the complexes unusable for the applications in devices exploiting the MLCT transition such as DSSCs. In this context, the project aims to improve and rationally control the electronic and geometrical properties of excited states of iron complexes in order to apply them in photocatalysis as well as in solar cells. Therefore, a primary goal is to establish generic rules and guidelines for the relationship between chemical structure and photophysical properties. This initial gain of knowledge provided by the thesis work is the key to rationalize, in a second time, the properties of excited states for the fabrication of metal complexes applicable in energy conversion applications. To do this, the project is based on an interdisciplinary approach combining chemical synthesis, which is the central part of thesis work, with theoretical computation and ultrafast spectroscopy, up to the study of photocatalytic properties or the fabrication of solar devices such as DSSCs
Paire, Damien. "Dimensionnement et gestion d'énergie de systèmes d'entraînements électriques hybrides : application à un ascenseur avec récupération d'énergie". Phd thesis, Belfort-Montbéliard, 2010. https://theses.hal.science/docs/00/59/89/75/PDF/Paire_Damien_These_UTBM.pdf.
Texto completo da fonteGiven the current energy challenges, hybrid power systems present an interesting asset for better energy efficiency especially in the use of renewable energy sources. These kinds of systems combine several sources in order to supply correctly the load. With a proper control strategy, we can take advantage of each source according to their characteristics so as to manage the entire system. In addition, for traction systems, it is possible to recover energy during different operating phases thanks to power electronic, instead of dissipating this energy in heat. The present study was applied to an elevator system fed by several sources. The first part of this thesis outlines energy problems and focuses on the savings on lifts in European Union. Then, the general structure of hybrid power systems is introduced with application examples. In the second part, the design of the system was led to meet the specifications of real elevators in terms of performance. However, for this study, we have added to this system different energy sources and the possibility of recovering energy. The modeling of the overall system has been carried in order to develop a control strategy for this hybrid system. After encouraging simulation results, an experimental platform was built to validate the control strategy on a real system. Experimentations have been performed successfully. The control is implemented with the rapid prototyping tool, dSPACE that allows to modify easily the strategies. This platform is therefore a complete tool for controlling hybrid electric systems in order to apply different energy management strategies
Paire, Damien. "Dimensionnement et gestion d'énergie de systèmes d'entraînements électriques hybrides : application à un ascenseur avec récupération d'énergie". Phd thesis, Université de Technologie de Belfort-Montbeliard, 2010. http://tel.archives-ouvertes.fr/tel-00598975.
Texto completo da fonteReynaud, Jean-François. "Recherches d'optimums d'énergies pour charge/décharge d'une batterie à technologie avancée dédiée à des applications photovoltaïques". Toulouse 3, 2011. http://thesesups.ups-tlse.fr/1482/.
Texto completo da fonteThe need of a storage function associated with intermittent power sources provides a better balance between consumption and energy production. Today, energy storage is most of the time done with conventional batteries like lead acid technology mainly for reasons of cost, reliability and commercial availability. However, the lifetime of actual storage elements, the environmental impact and the low efficiency causes the search for alternative storage facilities with lifetimes compatible with applications and functions more flexible. Lithium-ion technology today seems to be a good compromise if it is associated with an electronic precision performing various functions. This thesis focuses on optimizing lithium-ion technology used in renewable energy and the development of an associated electronics. The validation of this work has been done through photovoltaic conversion systems. The conversion efficiency of the assembly has been studied especially taking into account different charge and discharge profiles, aging and safety of batteries and the latest technological developments in battery. To validate management algorithms and qualify conversion chains, a specific test bench has been developed
Buchet, Eric. "Etude du dimensionnement et développement d'un logiciel d'aide à la conception de systèmes de production d'énergie utilisant la conversion photovoltai͏̈que de l'énergie solaire". Aix-Marseille 3, 1988. http://www.theses.fr/1988AIX30037.
Texto completo da fonteLivros sobre o assunto "Conversion d'énergie solaire"
Khaligh, Alireza. Energy harvesting: Solar, wind, and ocean energy conversion systems. Boca Raton: Taylor & Francis, 2010.
Encontre o texto completo da fonteKhaligh, Alireza. Energy harvesting: Solar, wind, and ocean energy conversion systems. Boca Raton: Taylor & Francis, 2010.
Encontre o texto completo da fonteKhaligh, Alireza, e Omer C. Onar. Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems. Taylor & Francis Group, 2017.
Encontre o texto completo da fonteKhaligh, Alireza, e Omer C. Onar. Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems. Taylor & Francis Group, 2017.
Encontre o texto completo da fonteKhaligh, Alireza, e Omer C. Onar. Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems. Taylor & Francis Group, 2017.
Encontre o texto completo da fonteKhaligh, Alireza, e Omer C. Onar. Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems. Taylor & Francis Group, 2017.
Encontre o texto completo da fonte