Academic literature on the topic 'Matériau à changement de phase'
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Journal articles on the topic "Matériau à changement de phase"
Boughedaoui, Rachid, Mohamed Cherif Azzaz, Mohamed Tahar Melouah, Abdennour El Mohri, M. Zergoug, Azzeddine Lounis, and Mohamed Azzaz. "Structure, Microstructure and Magnetic Properties of Nanostructured Alloys Fe-Nd-B Prepared by Mechanical Alloying." Journal of Nano Research 55 (November 2018): 11–21. http://dx.doi.org/10.4028/www.scientific.net/jnanor.55.11.
Full textPiarristeguy, Andrea, Pierre Noé, and Françoise Hippert. "Verres de chalcogénures pour le stockage de l’information." Reflets de la physique, no. 74 (December 2022): 58–63. http://dx.doi.org/10.1051/refdp/202274058.
Full textQarnia, Hamid El, and Marcel Lacroix. "Modélisation d'un échangeur de chaleur compact à courants croisés séparés par des couches de matériau à changement de phase." Revue Générale de Thermique 37, no. 6 (June 1998): 514–24. http://dx.doi.org/10.1016/s0035-3159(98)80067-6.
Full textCapilla, Xavier, Daniel Coillot, and Eric van Hullebusch. "L’industrie du verre en France." Matériaux & Techniques 110, no. 4 (2022): 401. http://dx.doi.org/10.1051/mattech/2022023.
Full textMeessen, Yves. "Maître Eckhart sans Maine de Biran ? Les notes manuscrites eckhartiennes de Michel Henry." Revue internationale Michel Henry, no. 7 (September 13, 2018): 151–67. http://dx.doi.org/10.14428/rimh.v0i7.6933.
Full textBürger, Peter. "Fin de l’avant-garde ?" Études littéraires 31, no. 2 (April 12, 2005): 15–22. http://dx.doi.org/10.7202/501231ar.
Full textLeeuwen, Marco H. D. van, and Ineke Maas. "Long-term social mobility: research agenda and a case study (Berlin, 1825–1957)." Continuity and Change 11, no. 3 (December 1996): 399–433. http://dx.doi.org/10.1017/s0268416000003477.
Full textHurisse, Olivier, and Jean-Pierre Minier. "Modélisation stochastique dʼécoulements diphasiques avec changement de phase." Comptes Rendus Mécanique 339, no. 6 (June 2011): 418–31. http://dx.doi.org/10.1016/j.crme.2011.04.004.
Full textGuiselin, Benjamin, and Ludovic Berthier. "Le verre est-il une phase de la matière ?" Reflets de la physique, no. 74 (December 2022): 28–33. http://dx.doi.org/10.1051/refdp/202274028.
Full textChammari, Ali, Betaboale Naon, Fabien Cherblanc, and Jean-Claude Bénet. "Transfert d'eau en sol aride avec changement de phase." Comptes Rendus Mécanique 331, no. 11 (November 2003): 759–65. http://dx.doi.org/10.1016/j.crme.2003.07.005.
Full textDissertations / Theses on the topic "Matériau à changement de phase"
Harle, Thibault. "Création et caractérisation d'un matériau de construction composite incorporant un nouveau matériau à changement de phase solide-solide." Thesis, Cergy-Pontoise, 2016. http://www.theses.fr/2016CERG0874.
Full textIn a context of reduction of energy consumption in buildings, new buildings materials are developed. Thermal regulations require energy efficiency to buildings. They must be less impacting on the environment while ensuring occupant comfort.In this work is presented the development of a new composite building material incorporating a phase change material.PCM are able to exchange passively heat energy with their environment. It thus allow a passive control of the interior temperature of buildings.After a state of the art on PCM and plaster, a part is dedicated to synthesis and physicochemical characterisation of a new solid/solid PCM. In a third part the incorporation of the PCM previously synthesized in plaster is then developped. The composite material is mechanically and thermally characterized.In a last time environmental assessments of the PCM and the composite material are performed
Merlin, Kevin. "Caractérisation thermique d'un matériau à changement de phase dans une structure conductrice." Thesis, Nantes, 2016. http://www.theses.fr/2016NANT4004/document.
Full textWaste heat recovery is a challenge for the improvement of energy efficiency. Latent heat storage is a solution that addresses this issue. We focus on industrial processes with high energy on power ratios. One of the identified processes is the sterilization of food products. However, phase change materials, which have low thermal conductivities, do not provide sufficient thermal powers for these applications. The improvement of the heat exchange surface or the increase in thermal conductivity of the material are then necessary. A first experimental thermal storage comparing various heat transfer intensification techniques was achieved. The concept based on paraffin and Expanded Natural Graphite (ENG) has proven to be the most efficient compared to solutions using fins or graphite powder. The thermal characterization of the selected composite material ENG/paraffin was performed by several methods. Effective thermal conductivities values of about 20 W.m-1.K-1 were obtained. In a second step, a 100kW/6kW.h demonstrator is designed and realized. This device tested on an existing sterilization process provides an energy saving of 15%, as expected. The identification of the planar thermal conductivity of the composite material and the influence of the thermal contact resistance are carried out using an experimental device, coupled to a numerical model. Finally, an aging device is used to study the thermal stability of this material
Chahine, Rebecca. "Ingénierie aux échelles nanométriques de matériaux chalcogénures à changement de phase pour les mémoires à changement de phase du futur." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALY058.
Full textIn terms of performance, cost and functional speed, phase-change memories are playing a key role in data storage technologies. Leveraging the properties of some chalcogenide materials, phase-change materials (PCMs) present unique features, mainly: fast and reversible switching between amorphous and crystalline states with significant optical and electrical contrasts between the both states. However, for an improved performance, the elevated power consumption due to the high programming current must be reduced, and the crystallization temperature also has to be increased. In this context, we have developed new multilayer systems of [GeTe/C]n and [Ge2Sb2Te5/C]n. The aim is to obtain, in a controlled and reproducible manner, a thin layer of nanostructured PCM with dimensions less than 10 nm. The multilayers were produced by the magnetron sputtering deposition technique in a 200 mm industrial equipment with a multi-cathode chamber. The multilayers are amorphous after deposition. Ion beam techniques permitted to check periodicity and composition of the multilayers. The sheet resistance and reflectivity as a function of temperature were measured in situ. The crystallization temperature of PCM in the multilayer structure increases and is dependent on the thickness of the PCM layer and that of the carbon films. The kinetics and magnitude of the amorphous-crystal transition of PCM in the multilayers are also significantly affected. The impact of the multilayer structure on the crystallization of GeTe versus Ge2Sb2Te5 is then compared and discussed with respect to their crystallization mechanism. We show that the initially amorphous multilayer structure is retained even after PCM crystallization during an annealing that is identical to the one used for the manufacture of memory devices (300 °C for 15 min). Thus, it is possible to obtain nanocrystalline grains of PCM in amorphous C on the order of 4 nm vertically and 20-30 nm in the layer plane. These results are compared with the microstructure of C-doped GeTe and Ge2Sb2Te5 films. Finally, by using X-ray diffraction measurements in the laboratory and by in situ experiments at the SOLEIL synchrotron, we were able to follow the evolution of the structure of these multilayers during annealing. For example, we reported that a local percolation effect of the GeTe grains between the layers of C occurs above a certain temperature
Le, Dû Mathieu. "Procédure de caractérisation thermophysique d’un matériau à changement de phase composite pour le stockage thermique." Mémoire, École de technologie supérieure, 2012. http://espace.etsmtl.ca/1061/1/LE_D%C3%9B_Mathieu.pdf.
Full textAzzouz, Kamel. "Etude d'un système frigorifique domestique à haute inertie thermique avec matériau à changement de phase." Paris 6, 2008. http://www.theses.fr/2008PA066007.
Full textLaouadi, Abdelaziz. "Transfert de chaleur dans un matériau à changement de phase : application au stockage cyclique d'énergie électrique." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21855.pdf.
Full textJadal, Mariam. "Conception et caractérisation d'un échangeur-stockeur composé d'un matériau à changement de phase dopé en conductivité." Thesis, Nantes, 2020. http://www.theses.fr/2020NANT4008.
Full textThe recovery of thermal waste is an important factor to improve the efficiency and economy of energy. Latent heat storage appears to be a promising solution of this problem and to synchronize the production and consumption of energy. We are interested in industrial applications with short thermal cycles. However, Phase Change Materials have low thermal conductivity. A concept based on paraffin and Expanded Natural Graphite (ENG) was manufactured and characterized. PCM has crystallization kinetics with two different transformations. The crystallization kinetics function of each transformation has been identified. The planar thermal conductivity, and the thermal contact resistance was identified in solid and liquid phases, using an experimental device coupled with a numerical model developing an inverse method. A phase change study of a plate and of an encapsulated aluminum cylinder was carried out using three energy conservation methods (enthalpy method, apparent specific heat, and crystallization kinetics), and experimentally validated. A 2D finite element simulation, associated with an analytical method was used for a tubular exchanger composed of a network of plate. Finally, an aging study of a single plate and encapsulated cylinders was carried out. The study confirms the thermal stability of the composite material
Manaa, Mongi. "Etude de la purification d'un matériau par fusion solidification''zone Melting''." Phd thesis, Ecole Polytechnique X, 2005. http://pastel.archives-ouvertes.fr/pastel-00001349.
Full textChoquette, François. "Modélisation et analyse du comportement exergétique de la fusion d'une couche d'un matériau à changement de phase." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq21730.pdf.
Full textBeust, Clément. "Modélisation multi-échelles d’un système de stockage thermique de vapeur par Matériau à Changement de Phase (MCP)." Thesis, Pau, 2019. http://www.theses.fr/2019PAUU3029.
Full textIn an industrial process where steam is employed as a heat carrier, the integration of a steam storage solution allows to make the production of steam independent of its usage. Steam storage technologies can be used to decrease the energy consumption of the process, or to valorize waste heat from steam flows. Steam storage is also crucial for thermal solar power plants with direct steam generation. This work presents a model of a shell-and-tube steam storage system using Phase Change Material (PCM). These systems store the thermal energy of steam through the latent heat of the solid-liquid phase change transition of a material called PCM. The heat transfers in a storage module are often influenced by the natural convection flow of the liquid PCM during fusion and solidification. Predicting the thermal performances of a module can only be done by simulating this flow with a Computational Fluid Dynamics (CFD) numerical model with a fine mesh, whose computational times are too high for engineering needs. The goal of this work is to develop a model for the design and the performance prediction of a storage module, which takes into account the fine physical phenomena while having reasonable computational times. A multi-scale modelling approach is adopted: both a fine CFD model of the PCM and a system model of a storage module with a coarser mesh are employed.The CFD model is based on the enthalpy-porosity approach, which allows 3D simulation of solid-liquid phase change, and takes into account the movements of the liquid PCM. The sensitivity of the model to several parameters which characterize the phase change is studied, on two case studies where the natural convection flows has different amplitudes. The crossed influences of the parameters are identified. The comparison to experimental results allows to emit good practices for the use of the model. The values of the latent heat and of the temperature interval where the phase change takes place appear to be fundamental for both cases; this shows that the precision of the PCM characterization is very important for the numerical simulation of solid-liquid phase change. The mushy zone constant, which governs the damping of the liquid flow in the vicinity of the fusion or solidification front, has a different effect on the results and a different optimal value depending on the case study. Therefore, it is recommended to fit the value of this constant on experimental data, whenever such data are available.The system model represents the 1D liquid water / steam two-phase flow in the tubes of a module, and the heat transfers and the phase change in the PCM outside the tubes. The PCM is represented by a purely conductive model with an equivalent conductivity. A prototype storage module with segmented fins, installed at CEA Grenoble, is simulated with the CFD model; sodium nitrate is used as PCM (phase change temperature: 305°C). A 1D law for the heat transfer between the tube and the PCM is obtained from the CFD results; this law takes into account the convective heat transfer, and the heat transfer enhancement by the fins and the conductive inserts that are disposed in the PCM. An equivalent conductivity of the PCM in the system model is computed from the law. The modelling methodology is validated on charge tests from the prototype module (PCM fusion and steam condensation). The system model correctly reproduces the transient heat transfer rate to the PCM that the CFD predicts and the one measured experimentally, while allowing 10 to 90 times shorter computational times
Books on the topic "Matériau à changement de phase"
1976-, Chen Yiran, ed. Nonvolatile memory design: Magnetic, resistive, and phase change. Boca Raton, FL: Taylor & Francis, 2012.
Find full text(Editor), Tomasz A. Kowalewski, and Dominique Gobin (Editor), eds. Phase Change with Convection: Modelling and Validation. Springer, 2004.
Find full textBook chapters on the topic "Matériau à changement de phase"
"La première phase:." In Gérez un projet de changement technologique, 23–38. Presses de l'Université du Québec, 2011. http://dx.doi.org/10.2307/j.ctv18ph9hq.6.
Full text"La deuxième phase:." In Gérez un projet de changement technologique, 39–58. Presses de l'Université du Québec, 2011. http://dx.doi.org/10.2307/j.ctv18ph9hq.7.
Full text"La troisième phase:." In Gérez un projet de changement technologique, 59–78. Presses de l'Université du Québec, 2011. http://dx.doi.org/10.2307/j.ctv18ph9hq.8.
Full text"La quatrième phase:." In Gérez un projet de changement technologique, 79–96. Presses de l'Université du Québec, 2011. http://dx.doi.org/10.2307/j.ctv18ph9hq.9.
Full textLauzier, Martin, Dorra Annabi, Benjamin Lafrenière-Carrier, and Louis Mbani Atangana. "Pleins feux sur la phase d’éveil:." In Améliorer la gestion du changement dans les organisations, 107–34. Presses de l'Université du Québec, 2018. http://dx.doi.org/10.2307/j.ctv10qqz06.12.
Full text"1 Rappels sur le phénomène de changement de phase." In Thermohydraulique des réacteurs, 319–23. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1147-2-083.
Full text"1 Rappels sur le phénomène de changement de phase." In Thermohydraulique des réacteurs, 319–23. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1147-2.c083.
Full textJean, Benoit, and Benoit Bergevin. "SYSTEME SOLAIRE A CHANGEMENT DE PHASE AU FREON POUR LE CHAUFFAGE DE L'EAU DOMESTIQUE (SACPAF)." In Intersol Eighty Five, 564–68. Elsevier, 1986. http://dx.doi.org/10.1016/b978-0-08-033177-5.50115-0.
Full textBergevin, Benoit, and Benoit Jean. "ETUDE DES MECANISMES DE TRANSFERT DE LA CHALEUR DANS UN SYSTEME DE CHAUFFE-EAU SOLAIRE A CHANGEMENT DE PHASE." In Intersol Eighty Five, 369–73. Elsevier, 1986. http://dx.doi.org/10.1016/b978-0-08-033177-5.50078-8.
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