Academic literature on the topic 'Mécanismes de transfert de chaleur'
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Journal articles on the topic "Mécanismes de transfert de chaleur"
SAUVET, F., S. BANZET, N. KOULMANN, and L. BOURDON. "Transferts de chaleur et coup de chaleur d’exercice. Applications à l’hyperthermie d’exercice et au refroidissement." Médecine et Armées Vol. 40 No. 3, Volume 40, Numéro 3 (June 1, 2012): 241–48. http://dx.doi.org/10.17184/eac.6612.
Full textBouchiba, Bousmaha, Saïd Benaceur, Ismaïl Khalil Bousserhane, and Mohamed Habbab. "Réalisation d’un variateur de vitesse d’un MCC dédie au séchoir solaire." Journal of Renewable Energies 20, no. 4 (December 31, 2017): 573–79. http://dx.doi.org/10.54966/jreen.v20i4.650.
Full textBennacer, Rachid, Abdelwahab Tobbal, and Hassen Beji. "Convection naturelle Thermosolutale dans une Cavité Poreuse Anisotrope: Formulation de Darcy-Brinkman." Journal of Renewable Energies 5, no. 1 (June 30, 2002): 1–21. http://dx.doi.org/10.54966/jreen.v5i1.882.
Full textYoucef, Ahmed, and Rachid Saim. "Simulation numérique du comportement dynamique et thermique de deux fluides en contre courant." Journal of Renewable Energies 20, no. 1 (October 12, 2023): 69–80. http://dx.doi.org/10.54966/jreen.v20i1.610.
Full textSAUVET, F., M. CHENNAOUI, S. BANZET, C. BOURRILHON, F. CANINI, L. BOURDON, and N. KOULMANN. "Coup de chaleur d’exercice, système cardiovasculaire et vulnérabilité systémique." Médecine et Armées Vol. 40 No. 3, Volume 40, Numéro 3 (June 1, 2012): 231–40. http://dx.doi.org/10.17184/eac.6611.
Full textNessab, Walid, Brahim Fersadou, and Henda Kahalerras. "Etude d’un jet de ferrofluide confiné en présence de deux sources magnétiques." MATEC Web of Conferences 261 (2019): 04002. http://dx.doi.org/10.1051/matecconf/201926104002.
Full textTamene, Youcef, Said Abboudi, and Cherif Bougriou. "Simulation des transferts thermiques transitoires à travers un mur multicouche soumis à des conditions de flux solaire et de convection." Journal of Renewable Energies 12, no. 1 (October 26, 2023): 117–24. http://dx.doi.org/10.54966/jreen.v12i1.125.
Full textCANINI, F., E. SAGUI, and F. ZAGNOLI. "Système nerveux, stress et coup de chaleur." Médecine et Armées Vol. 40 No. 3, Volume 40, Numéro 3 (June 1, 2012): 225–30. http://dx.doi.org/10.17184/eac.6610.
Full textPeureux, B., J. F. Durastanti, and B. Martin. "La réanalyse du transfert instationnaire de la chaleur." International Communications in Heat and Mass Transfer 24, no. 1 (January 1997): 139–50. http://dx.doi.org/10.1016/s0735-1933(96)00113-3.
Full textCOLLIN, A., L. BEDRANI, T. LOYAU, S. MIGNON-GRASTEAU, S. METAYER-COUSTARD, C. PRAUD, V. DE BASILIO, et al. "L’acclimatation embryonnaire : une technique innovante pour limiter les mortalités liées au stress thermique chez le poulet." INRAE Productions Animales 24, no. 2 (April 7, 2011): 191–98. http://dx.doi.org/10.20870/productions-animales.2011.24.2.3253.
Full textDissertations / Theses on the topic "Mécanismes de transfert de chaleur"
Simon, Pascal. "Modélisation et simulation des mécanismes de la combustion hybride dans un système propulsif." Poitiers, 1996. http://www.theses.fr/1996POIT2384.
Full textPeregrina-Cambero, Carlos-Alberto. "Traitement des boues par friture : des mécanismes physiques à l'éco-conception d'un procédé." Lyon, INSA, 2005. http://theses.insa-lyon.fr/publication/2005ISAL0089/these.pdf.
Full textLe procédé de séchage par friture consiste à mettre en contact une phase solide humide divisée (la boue d'épuration) et une phase liquide non miscible (une huile alimentaire usagée), chauffée entre 120 et 180°C, pour obtenir un solide granulaire stable, hygiénisé et valorisable notamment comme combustible. Une étude expérimentale à l'échelle du laboratoire a permis d'identifier les différents mécanismes de transfert de chaleur et de masse mis en jeu lors de l'opération de friture de boue et d'optimiser les paramètres opératoires. Aux temps courts, les phénomènes limitants sont d'origine thermique. Aux temps longs, la limitation des transferts provient du transport d'huile au sein de la matrice poreuse puis du transfert de matière en phase vapeur. Une Analyse de Cycle de Vie (ACV) a été mise en œuvre pour évaluer les performances environnementales d'une filière thermique " séchage + incinération " de valorisation des boues. Le scénario de référence fait appel à un séchage par contact avec agitation tandis que le scénario alternatif prévoit un séchage par friture. Parmi les quatre catégories d'impact retenues, le séchage par friture s'avère extrêmement performant en terme de consommation des ressources non renouvelables et d'impact sur le changement climatique. Enfin, la simulation d'un procédé continu, fonctionnant sur la base d'une production d'une tonne par heure de boues auto-combustibles, avec différents systèmes de récupération de l'énergie contenue dans les buées a été réalisée à l'aide d'un logiciel du commerce. Ce dimensionnement a servi de base à une évaluation économique des coûts d'investissement et de fonctionnement de l'installation
Hoang, Hong Minh. "Analyse des mécanismes turbulents au sein d'un écoulement anisotherme entre parois ondulées : influence sur le transfert thermique." Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aéronautique, 2009. http://www.theses.fr/2009ESMA0011.
Full textKnowledge of of turbulent mechanisms in wavy channel so far is still limited despite the work done in the past decade because of the complexity of geometrical factors and the small size which makes experiments difficult. This thesis examines the role played by turbulence inwavy channel and its influence on heat transfer. The dynamic behaviour is characterized by the mean and fluctuating flow through PIV measurements (rapid and standard) and large eddy simulation (LES). Quantification of heat transfer is obtained by wall thermocouples while temperature fields are described by LES. The wavy induces the average behaviour of the flow. Indeed, the longitudinal and transverse components are periodic, while the vertical component is related to confinement. In steady state, the flow presents specific areas: a shear layer is generated below the crest, accompanied by strong correlated longitudinal and transverse fluctuations, the development of this layer occurs in the concave part of the wavy-channel (called through) ; in the downstream of the through, the shear layer impacts on the wall and a significant increase in vertical fluctuations is observed. The analysis of turbulent kinetic energy showed a complex behaviour: production is related to the shear layer, dissipation occurs in the through, but some energy is diffused or convected towards the wall or the central flow. Although fluctuations of temperature are mostly located in the shear layer, the maximum heat transfer occurs in the impact zone. To complete the study, experimental and numerical work were carried out for different spacings between walls, and different wavy amplitudes. These results have extended the knowledge of the role of these parameters and quantified their influence on the dynamic and thermal behaviour: the increase of turbulence intensity and of heat transfer is obtained with a geater waviness or a larger distance between wavy walls. These results are essential to optimize performance of wavy fins compact heat exchangers
Brun, Emmanuel Camille Marius. "De l'imagerie 3D des structures à l'étude des mécanismes de transport en milieux cellulaires." Aix-Marseille 1, 2009. http://www.theses.fr/2009AIX11014.
Full textFew works deals with real geometry to study the impact of structure on transport properties of cellular material. Tools developed during this phd permit a precise geometrical characterization os cellular solids. Our approach is based on the combined use of the morphological analysis software 3D developed during the phd (iMorph) and numerical simulation of heat and mass transfer on real geometry obtained by X-ray tomography. With this approaches, and the study on a wide range of metallic foams, we identify the geometrical relevant criteria for the transport properties understanding (Conductivity, Fluid flow and Radiative transfer). Moreover we estimate Representative Volume Element for both geometrical and fluid flow properties. We developed a multi object segmentation algorithm based on local inertia moments. This original method allow a classification of a trabecular bone database based on the plate volume ratio
Thomas, Anthony. "Transfert d'eau et de chaleur dans une pile à combustible à membrane : mise en évidence expérimentale du couplage et analyse des mécanismes." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0143/document.
Full textProton exchange membrane fuel cells (PEMFC) make it possible to convert efficiently chemical energy into electricity. For this, hydrogen is oxidized at one of the electrodes of the cell, created protons pass through the electrolyte (membrane) while electrons flow across the external circuit provide the electrical energy. All these elements recombine at the second electrode, with oxygen, to produce water. Performance is not perfect within a cell and a part of the reactants energy is also degraded as heat. Despite recent advances, the large scale commercialization of PEMFC is still hampered by durability issues, some of them being related to water and thermal management. In order to quantify the thermal behavior and its effect on the water transport, a fuel cell has been instrumented for the electrodes temperature, water and heat fluxes measurement. The results show that high temperature gradients (up to about 30 K/mm) can exist in a cell operating under standard conditions. It was observed a clear influence of the temperature field in the cell on the water transport. Water flows towards the coldest part of the cell (usually the channels), passing through the porous layers in vapor phase in our experimental conditions
Bennai, Fares. "Étude des mécanismes de transferts couplés de chaleur et d’humidité dans les matériaux poreux de construction en régime insaturé." Thesis, La Rochelle, 2017. http://www.theses.fr/2017LAROS013/document.
Full textThe aim of this work is to understand the influence of the geometric parameters of envelope eco-materials, such as hemp concrete, on the mechanisms of coupled heat, air and moisture transfers, in order to predict behavior of the building to control and improving it in its durability. For this a multi-scale approach is implemented. It consists of mastering the dominant physical phenomena and their interactions on the microscopic scale. Followed by a dual-scale modeling, microscopic-macroscopic, of coupled heat, air and moisture transfers that takes into account the intrinsic properties and microstructural topology of the material using X-ray tomography combined with the correlation of 2D and 3D images. A characterization campaign of physical and hydrothermal properties of the hemp concrete manufactured in the laboratory was carried. It focused on studying the impact of aging, thermal and hydric state of the material on these intrinsic properties. The results show an excellent thermal insulation and natural moisture regulation capacity of hemp concrete. Then, a microscopic characterization by different imaging techniques was performed. The 3D reconstructions of the real material scanned with X-ray tomography at different resolutions show that hemp concrete has several scales of porosity, ranging from micro-porosity within the binder and hemp shiv to the inter-particle macro-porosity. The hydromorphic behavior under hydric solicitations was studied. The results of the 2D digital image correlation and X-ray tomography coupled with the volumetric image correlation show the nature of the behavior of hemp concrete subjected to different relative humidities. In fact, the hemp shiv undergoes greater deformations than the binder, thus causing changes in the microstructure of the material. On the modeling part, a model of coupled heat, air and moisture transfer in porous building materials was developed using the periodic homogenization technique. The homogenized tensors of diffusion and thermal conductivity were determined numerically. Then, a confrontation between the results of the calculation of the macroscopic diffusion coefficients and the experimental results obtained at the LaSIE was carried out. It highlights the quality of the prediction. In addition, the thermal conductivity of the solid phase was thus deduced. The results obtained in the framework of this PhD thesis have highlighted the influence of the hydric and thermal state of the hemp concrete on these intrinsic properties and its very heterogeneous microstructure. They also revealed the limitations of phenomenological approaches based on the establishment of the balances of mass, amount of motion and energy
Arlabosse, Patricia. "Etude des transferts de chaleur et de masse par effet Marangoni : application à la compréhension du mécanisme de l'ébullition en apesanteur." Aix-Marseille 1, 1997. http://www.theses.fr/1997AIX11024.
Full textLottin, Olivier. "Étude du fonctionnement des réacteurs d'une pompe à chaleur à compression-absorption : modélisation des mécanismes de changement d'état d'un fluide binaire zéotrope s'écoulant en film tombant sur une plaque plane verticale." Nancy 1, 1996. http://www.theses.fr/1996NAN10315.
Full textThis report is a study of the absorber and the desorber of an absorptioncompression heat pump, which are falling film type reactors using vertical plates geometry. Two kinds of models with coupled heat and mass transfers are detailled. The first one is based on local equations using thermal and molecular diffusivities ; it allows the calculation of Nusselt and Sherwood numbers. The second one is based on equations using heat and mass transfer coefficient. Both models give heat flux and mass flux in the liquid solution and in the vapor. The influence of the value of heat and mass coefficients that appear in the second, model on the global performances of the absorption-compression cycle is presented. Sorne results are compared with measurements made on an experimental heat pump. A second experimental study is made to compare the efficiency of different corrugated plates used in the reactors
Lefebvre, Xavier. "Analyse des mécanismes physico-chimiques et biochimiques en vue d'optimiser le traitement biologique aérobie des résidus lipidiques." Toulouse, INSA, 2001. http://www.theses.fr/2001ISAT0022.
Full textGrease residues are high concentrated semi-solid waste, treated by sequential batch reactor. Foaming makes the treatment process unreliable. Physical, chemical and biochemical processes evolving during the grease residues degradation are analysed for the design of optimal reactor monitoring. Insoluble fatty acids are main compounds. Semi-solid grease sorbs to water/air and water/flocs interfaces. In reactor operation conditions (pH = 7, Substrate/Micro-organisms (S/X) = 0. 1 g/g), more than 97% of grease is sorbed to biomass and must be solubilised by a pH-dependent process (pKa = 8) before their biological assimilation. The degradation kinetics is controlled by the sorbed grease solubilisation. The reaction order is 0 (k = 0. 5 day-1, T = 25ʿC). Two foaming mechanisms are identified. The inhibition conditions are determined (pH < 7,5 ; S/X < 0. 3 g VS/g HEM ; Ssoluble < CMC). Different optimal operation modes, based on modelling, are proposed. A partial parameters sensitivity analysis (degradation and biomass yield) is performed
Thomas, Anthony. "Transferts d'eau et de chaleur dans une pile à combustible à membrane : mise en évidence expérimentale du couplage et analyse des mécanismes." Phd thesis, Université de Lorraine, 2012. http://tel.archives-ouvertes.fr/tel-00820468.
Full textBooks on the topic "Mécanismes de transfert de chaleur"
Giot, M. Phénomènes de transfert: Fluides, chaleur, masse. 2nd ed. Louvain-la-Neuve: CIACO, 1989.
Find full textBoutat, Alain. Relations technologiques internationales: Mécanismes et enjeux. Lausanne: Méta-Éditions, 1991.
Find full textDunn, P. D. Heat pipes. 4th ed. Oxford, England: Pergamon, 1994.
Find full textIncropera, Frank P. Fundamentals of heat and mass transfer. 3rd ed. Chichester: Wiley, 1990.
Find full textIncropera, Frank P. Fundamentals of heat and mass transfer. 4th ed. New York: Wiley, 1996.
Find full textP, Cheremisinoff Nicholas, ed. Handbook of heat and mass transfer. Houston: Gulf Pub. Co., 1986.
Find full textP, Incropera Frank, and Incropera Frank P, eds. Fundamentals of heat and mass transfer. 6th ed. Hoboken, NJ: John Wiley, 2007.
Find full text1934-, DeWitt David P., ed. Fundamentals of heat and mass transfer. 2nd ed. Chichester: Wiley, 1985.
Find full text1934-, DeWitt David P., ed. Fundamentals of heat and mass transfer. 3rd ed. New York: Wiley, 1990.
Find full text1934-, DeWitt David P., ed. Fundamentals of heat and mass transfer. 5th ed. New York: J. Wiley, 2002.
Find full textBook chapters on the topic "Mécanismes de transfert de chaleur"
FEIDT, Michel. "De la thermodynamique de l’équilibre à la thermodynamique irréversible." In Avancées en thermodynamique et thermoéconomie circulaire, 15–49. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9126.ch1.
Full textFEIDT, Michel. "De la thermodynamique à la TODF, thermodynamique en dimensions physiques finies." In Avancées en thermodynamique et thermoéconomie circulaire, 137–60. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9126.ch4.
Full textBALANZAT, Emmanuel, and Muriel FERRY. "Les matériaux organiques." In Les matériaux du nucléaire sous irradiation, 219–54. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9148.ch8.
Full textOLIVÈS, Régis. "Centrales solaires thermodynamiques et stockage." In Stockage de la chaleur et du froid 1, 217–87. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9133.ch8.
Full textDassargues, Alain. "11. Transfert de chaleur dans les aquifères et géothermie peu profonde." In Hydrogéologie appliquée, 341–64. Dunod, 2020. http://dx.doi.org/10.3917/dunod.dassa.2020.01.0341.
Full textSAMBOU, Aly. "La théorie interprétative à l’heure de la traduction communautaire en Afrique." In La traduction et l’interprétation en Afrique subsaharienne : les nouveaux défis d’un espace multilingue, 215–26. Editions des archives contemporaines, 2021. http://dx.doi.org/10.17184/eac.3537.
Full textSaguin, Emeric, and Bertrand Lahutte. "Le rêve." In Le rêve, 199–213. In Press, 2023. http://dx.doi.org/10.3917/pres.misso.2023.01.0200.
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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