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Academic literature on the topic 'Thermique – Protection'
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Journal articles on the topic "Thermique – Protection"
DAVID, J. C., and J. F. GRONGNET. "Les protéines de stress." INRAE Productions Animales 14, no. 1 (February 16, 2001): 29–40. http://dx.doi.org/10.20870/productions-animales.2001.14.1.3723.
Full textChebbah, Lynda, Lakhdar Djemili, Mohammed Tawfik Bouziane, and Mohamed Chiblak. "Modélisation d'un masque en béton bitumineux (brut et protégé) sous sollicitations thermiques en régime transitoire. cas du masque de barrage Ghrib (Ain Defla, Algérie)." La Houille Blanche, no. 1 (February 2020): 42–49. http://dx.doi.org/10.1051/lhb/2019064.
Full textSuban, Marjan, Simon Bozic, Andrej Zajec, Robert Cvelbar, and Borut Bundara. "Crack analysis in thermite welding of cathodic protection." Nuclear Engineering and Design 246 (May 2012): 123–27. http://dx.doi.org/10.1016/j.nucengdes.2011.08.001.
Full textMonceau, D., A. Boudot-Miquet, K. Bouhanek, R. Peraldi, A. Malie, F. Crabos, and B. Pieraggi. "Oxydation et protection des matériaux pour sous-couches (NiAlPd, NiAlPt, NiCoCrAlYTa, CoNiCrAlY) de barrières thermiques." Le Journal de Physique IV 10, PR4 (March 2000): Pr4–167—Pr4–171. http://dx.doi.org/10.1051/jp4:2000423.
Full textSerratrice, Jean François. "Suivi des déformations du massif rocheux sous la fondation de la pile VII du Pont du Gard." Revue Française de Géotechnique, no. 164 (2020): 2. http://dx.doi.org/10.1051/geotech/2020023.
Full textCorrias, Gianluca, Roberta Licheri, Roberto Orrù, and Giacomo Cao. "Self-Propagating High-Temperature Synthesis Reactions for ISRU and ISFR Applications." Eurasian Chemico-Technological Journal 13, no. 3-4 (May 4, 2010): 137. http://dx.doi.org/10.18321/ectj77.
Full textZhyhuts, Yurii, Vasyl Lazar, and Bohdan Khomiak. "FEATURES OF DETERMINING ECONOMIC EFFECT FROM USE OF PROGRESSIVE TECHNOLOGIES IN FOUNDRY PRODUCTION." Scientific Bulletin of Mukachevo State University. Series “Economics” 1(13) (2020): 80–85. http://dx.doi.org/10.31339/2313-8114-2020-1(13)-80-85.
Full textTer Minassian, Hovig. "La réhabilitation thermique des bâtiments anciens à Paris : comment concilier protection du patrimoine et performance énergétique ?" Cybergeo, May 30, 2011. http://dx.doi.org/10.4000/cybergeo.23737.
Full textDissertations / Theses on the topic "Thermique – Protection"
Toustou, Mathilde. "Stabilisation thermique de protéines par des polymères." Paris 6, 2004. http://www.theses.fr/2004PA066424.
Full textCombaret, Christophe Macovschi Mihail. "Comportement thermique des composants de protection contre les effets indirects de la foudre." Villeurbanne : Doc'INSA, 2001. http://docinsa.insa-lyon.fr/these/pont.php?id=combaret.
Full textCombaret, Christophe. "Comportement thermique des composants de protection contre les effets indirects de la foudre." Lyon, INSA, 2000. http://theses.insa-lyon.fr/publication/2000ISAL0055/these.pdf.
Full textHigh power avalanche diodes, often sold as "transil" diodes, represent an attractive solution for the protection of electronic systems against lightning induced effects. These effects are generated (resistive, capacitive or inductive coupling) when an electric conductor is very close to metallic mass directly hit by a lightning stroke). Reliable and rational implementation of a transil diode needs a thermo-electrical fitting as sharp as possible. The proposed model is based both on the diode mechanical structure for its thermal side and on a SPICE-like system for its electrical side. The model numerical parameters computation and use have been validated with experimental data. On the other hand, long-term behavior of a transil diode hit by lightning induced effects is not well known. So, the second part of this work concerns degradation and weakening effects appearing in normal work conditions of the component. Experimental equipments (high energy pulses generator and measurement setup) have been developped. Preliminary observations have showed differences in the diode behavior under, in one hand, high energy and low current pulses and, in the other hand, high current and low energy pulses. Then, a systematic study showed differences between these two behavior. In the first case, two phenomena leading to a typical increasing of reverse leakage current have been studied and analysed. They appear to be linked to localized breakdown and setting up of deep levels in the junction
Wang, Yan. "Réalisation par projection thermique de dépôts pour la protection contre l'érosion par cavitation." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCA004/document.
Full textIn order to protect the hydraulic components from cavitation erosion phenomena, the parts are often coated by thermal spraying. Buck YSZ shows an excellent performance against cavitation erosion. However, the cavitation erosion resistance of YSZ coatings have vaguely been studied. Therefore, in this study, YSZ were manufactured with different thermal spraying processes and post-treated by laser remelting, then they were subjected to cavitation tests according to ASTM G32.The YSZ coating was first manufactured by atmospheric plasma spraying (APS). Various sizes of YSZ powder and different preheating temperatures of the substrate were studied to observe their effect on the cavitation behavior of the samples. The acoustic cavitation simulation of the Caflisch type has been used to estimate the speed of the water jet and the stresses exerted by the collapse of the bubbles on the surface of the samples. The cavitation results of the two YSZ and 304SS coatings were aslo studied to discuss cavitation damage of a thermally sprayed coating.Then in order to densify these samples, YSZ-NiCrBSi composite coatings containing from 5 to 25 wt% NiCrBSi in the mixture were manufactured with the APS process. The results of cavitation erosion show that low adhesion of NiCrBSi particles counterbalances the positive effect of decreasing porosity in these coatings. The YSZ coating was then post-treated by laser remelting and various laser parameters were tested to optimize their densification. It turns out that laser remelting produces a dense surface layer but also cracks inside the coatings. Exposed to the cavitation erosion test, it was observed significant removal of the remelted parts of the coating and, resulting in rapid mass loss. This is why epoxy has been used to infiltrate these cracks. The laser remelted and epoxy infiltrated coating exhibits a significant improvement in cavitation resistance. Finally, the vacuum plasma spraying method (VPS), which provides very dense coatings, was used to make the YSZ coating. A porosity coating of less than 1% was obtained. Due to the high temperature of the substrate during VPS projection, the interlamellar bonds are improved, contributing to a significant increase of cavitation resistance
Lechêne, Sullivan. "Etude expérimentale et numérique des rideaux d'eau pour la protection contre le rayonnement thermique." Phd thesis, Université Henri Poincaré - Nancy I, 2010. http://tel.archives-ouvertes.fr/tel-00539894.
Full textVerdier-Gorcias, David. "Stockage thermique de protection à chaleur latente intégré à un récepteur solaire à air pressurisé." Thesis, Perpignan, 2016. http://www.theses.fr/2016PERP0003/document.
Full textThe thesis deals with the problem of thermal inertia and life time of the solar receiver of a Concentrated Solar Power tower plant. A specific attention is paid to the situation of HSGT (Hybridized Solar Gas Turbine) systems using pressurized air as HTF (Heat Transfer Fluid). The intermittence of solar radiation, mainly resulting from cloudy events, causes important temperature fluctuations that contribute to the premature aging. Therefore, a Thermal Energy Storage (TES) is developed for the protection of the receiver. The design focuses on the high temperature section of the receiver. As a consequence of the elevation of temperature in this stage, the expected temperature of the receiver ranges between 600°C and 800°C. Once the receiver is no longer irradiated, the temperature of the outlet air of the receiver, which is 750°C at designed point, decreases below 400°C in less than 15 minutes. The objective is to integrate the TES into the solar receiver to maintain this air temperature higher than 600°C after 15 minutes of discharge. A low capacity TES is targeted. Besides, the storage should enhance the lifetime of the receiver during the operation, by avoiding temperature drops. A test bench is designed based on a technology using both Phase Change Material (PCM) and metallic fins in order to enhance charge and discharge power of the storage unit. The selected metal is copper, because of its great thermal conductivity. The thermal storage medium must operate in the range 600°C – 800°C. The lithium carbonate has been selected mainly because of its phase change temperature, 723°C. A numerical model is developed in order to help the design of the test bench and compare experimental results. The conclusions lead to one-scale design of the thermal storage integrated to the solar receiver
Gidik, Hayriye. "Réalisation d’un fluxmètre thermique à gradient tangentiel de température à paroi auxiliaire textile intégrant des fils thermoélectriques : application à la mesure des transferts thermiques et hydriques." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10139/document.
Full textAfter a state of the art on existing heat fluxmeters, it has been demonstrated that they aren’t able to measure the coupling between heat and mass transfers because of their impermeability. Moreover, they can be used just for flat and static surfaces because of their semi rigidity. Thus, the objective of this study is to develop a heat flow meter tangential temperature gradient with a textile auxiliary wall (textile heat fluxmeter). It is able to measure the coupling between heat and mass transfers with a minimum perturbation and it can be used for complex surfaces due to its porosity and flexibility. Three different processes were used to develop textile heat fluxmeters: a thermopile was realized with electroplating technology with two different methods, i.e. additive or subtractive, and it was inserted into the textile auxiliary wall during the weaving process with two different orientations, i.e. weft and warp. Moreover, the influence of the textile auxiliary wall on the textile heat fluxmeters’ performance was studied. Two different materials, i.e. a hydrophilic and a hydrophobic, and two different weaving structures, i.e. with a rough surface and with a flat surface, were compared. Among all the textile and reference heat fluxmeters, the textile heat fluxmeter with hydrophilic material and flat surface gives the highest sensitivity. This can be explained by its higher thermal resistance and optimized contact with the measuring unite. It was observed that the textile heat fluxmeter with hydrophobic material is less influenced by the measurement of the coupling between heat and mass transfers: its behavior is less modified by humidity
Martias, Céline. "Synthèse et caractérisation de matériaux composites à base de sulfate de calcium destinés à la protection incendie." Phd thesis, Toulon, 2011. http://tel.archives-ouvertes.fr/tel-00769952.
Full textDHIMA, DHIONIS. "Contribution a la caracterisation thermique de materiaux de protection de profiles metalliques soumis a un incendie." Paris 6, 1993. http://www.theses.fr/1993PA066352.
Full textBen, Hassine Mouna. "Modélisation du vieillissement thermique et mécanique d’une protection externe en EPDM de jonctions rétractables à froid." Thesis, Paris, ENSAM, 2013. http://www.theses.fr/2013ENAM0048/document.
Full textThe aim of this work is to study the consequences of the thermal oxidation on the chemical structure and mechanical behavior of an Ethylene-Propylene-Diene Monomer (EPDM). In order to determine the structural changes at different scales, four model formulations have been considered: free additive gum, stabilized and unstabilized vulcanized matrix and industrial rubber. All samples were aged between 70 and 170°C in air or vacuum and characterized by several analytical tools. Thermogravimetry gives access to weight variations due to oxygen grafting and volatile compounds release. Infrared analysis is used to follow chemical species evolutions. Swelling tests, chromatographic and mechanical spectrometry tests allow calculating the number of chain scission and cross-linking events at any time. Based on these results, a general kinetic model is proposed and partially validated for EPDM matrix thermal oxidation. The consequences of thermal ageing on the mechanical behavior of the industrial rubber are pointed out by monotonic tensile and stress relaxation tests at room temperature and a 10-3 s-1- initial strain rate. The impact of thermal ageing on ultimate properties and equilibrium and non-equilibrium response are examined. Finally, the coupling between thermal ageing and mechanical stress is studied by continuous stress relaxation tests between 130 et 170°C in air. The microstructural modifications during thermal ageing are introduced into the constitutive equations of the macroscopic mechanical model in order to propose a predictif tool of the long time behavior of the industrial rubber. The numerical simulation is in good agreement with experimental results