Academic literature on the topic 'Capteur de gaz souterrain'
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Journal articles on the topic "Capteur de gaz souterrain":
Nassiet, Thomas, Jérémie Grisolia, Jean-Louis Noullet, Sébastien Lachaize, Cathy Crouzet, Reasmey Tan, François Guérin, Cherif Rouabhi, Frédéric Gessinn, and Marc Respaud. "Un « smart device » à base de capteur de gaz à nanoparticules." J3eA 16 (2017): 1012. http://dx.doi.org/10.1051/j3ea/20171012.
Aneflous, L., J. A. Musso, J.-R. Gavarri, A. Benlhachemi, and H. Benyaich. "Nanopoudres de dioxyde de cérium dopé au néodyme : étude d’un capteur de gaz." Journal de Physique IV (Proceedings) 122 (December 2004): 241–46. http://dx.doi.org/10.1051/jp4:2004122037.
Deslandes, J. "P034: Réanimation cardio-pulmonaire sans période de “no-flow”: un nouveau dispositif." CJEM 18, S1 (May 2016): S89—S90. http://dx.doi.org/10.1017/cem.2016.210.
Salaün, A.-C., R. Rogel, E. Jacques, and L. Pichon. "Fabrication et caractérisation électrique d'un capteur de gaz à base de nanofils de silicium suspendus." J3eA 13 (2014): 0007. http://dx.doi.org/10.1051/j3ea/2014007.
Jouhannaud, Julien, Jérôme Rossignol, and Didier Stuerga. "Développement d'un nouveau capteur de gaz basé sur la détection à large bande micro-onde." Comptes Rendus Physique 8, no. 3-4 (April 2007): 456–61. http://dx.doi.org/10.1016/j.crhy.2007.04.013.
Alayli, Y., and S. Bendamardji. "Sensibilité à la température d'un capteur de pression partielle de gaz carbonique à fibres optiques." European Physical Journal Applied Physics 1, no. 3 (March 1998): 353–60. http://dx.doi.org/10.1051/epjap:1998156.
Gombert, Philippe, Angélique Poulain, Pascal Goderniaux, Philippe Orban, Estanislao Pujades, and Alain Dassargues. "Potentiel de valorisation de sites miniers et carriers en step en France et en Belgique." La Houille Blanche, no. 4 (August 2020): 33–42. http://dx.doi.org/10.1051/lhb/2020035.
Rouahbi, Ch, F. Guerin, R. Tan, Ch Cappello, S. Lachaize, J. Grisolia, J. L. Noullet, et al. "Capteur de gaz à base de nanoparticules : synthèse de nano-objets par voie chimique, intégration et caractérisation de capteurs élaborés en salle blanche." J3eA 16 (2017): 1022. http://dx.doi.org/10.1051/j3ea/20171022.
Rosenkrantz, Eric, Jean-Yves Ferrandis, Gérard Lévêque, and Daniel Baron. "Caractérisation d'un gaz confiné à l'aide d'un capteur acoustique - Application aux crayons combustibles nucléaires." Mesures physiques, January 2010. http://dx.doi.org/10.51257/a-v1-in113.
Adnane, Mohamed, Toufik Sahraoui, Abdelkader Abderrahmane, Saad Hamzaoui, and Denis Chaumont. "Elaboration et caractérisation des matériaux binaires CuxS et Ag2S élaborés par la technique SILAR pour couche tampon de cellule solaire à base de couche absorbante CIS." Journal of Renewable Energies 13, no. 4 (October 25, 2023). http://dx.doi.org/10.54966/jreen.v13i4.228.
Dissertations / Theses on the topic "Capteur de gaz souterrain":
Taher, Mohammad Iktiham Bin. "New HEMT Type Sensors for In-situ Bio‐Geochemical Analysis." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0229.
An innovative gas sensor generation based on AlGaN/GaN High Electron Mobility Transistor (HEMT) has been developed for complex geological environments. It is designed to study the mass transfer of gases (H2, CO2, CH4, O2, H2S, SO2, and He) from the underground to the Earth's atmosphere. It incorporates the key features for subsurface gas sensor development such as miniaturization, robustness, insensitivity to harsh environments, and low cost.Technological steps, design of the sensor layouts, micro-fabrication techniques, and optimization of the electrical performance of the HEMTs have been continuously investigated and improved. Current densities above 400 mA/mm and pinch-off current= (~1×10-5 A), and transconductance (gm)= ~0.03 S/mm have been achieved for certain bias conditions. At the same time, the processed AlGaN/GaN HEMT sensors with different functional layers (Pt, ITO, and IZO) are fabricated and characterized for different gases (H2, CO2, CH4, and He) in the laboratory, and real subsurface conditions (Borehole: 51 m) under different environmental conditions (temperature= 25 to 450°C, humidity= 0 to 100%). The measured adsorption enthalpies of hydrogen onto various sensing materials like Pt, ITO, and IZO are calculated -30.3 kJ mol^(-1), -32.5 kJ 〖mol〗^(-1), and -34 kJ 〖mol〗^(-1), respectively, indicating that ITO and IZO are complementary to Pt for the development of a hydrogen gas sensor.Pt/AlGaN/GaN-based HEMT devices have been studied to evaluate the performance of hydrogen sensors in pure atmospheric air and a fully N2-based atmosphere to simulate subsurface conditions where the O2 concentration changes over the depth of the soil. From the thermodynamic analysis, the affinity of hydrogen for Pt was found nearly 2000 times greater than the affinity of oxygen for platinum. This makes the sensor suitable for detecting hydrogen in the air or various mixtures of O2 and H2 at different underground depths imply.A dedicated gas sensor batch has been fabricated with passivated (i.e., non-active) sensor components as a reference for gas detection (active sensor). The active sensor Pt/AlGaN/GaN provided a change in current indicating a response to the hydrogen exposure, while the non-active (Passivated-Pt/AlGaN/GaN) provides no changes in current. But non-active sensor (reference) tracks and eliminates the changes caused by external environmental parameters.This thesis also presents new measurement techniques using pulse polarization for subsurface gas detection with a Pt-AlGaN/GaN HEMT sensor. Instead of imposing a continuous input bias (which always maintains the ON state) over a long period of the experiment, the sensor is activated several times with pulsed polarization for a short period of time (ON/OFF state). The sensors showed a sufficiently fast response to the target gas by changing the drain current in pulsed bias mode with a linear increase in output current even at very low concentrations such as 25 ppm. All the experiments conducted in the study demonstrated that the sensors could work in various measurement scenarios that may occur in the real situation of subsurface gas detection
Sáinz-García, Álvaro. "Dynamique de stockage souterrain de gaz : aperçu à partir de modèles numériques de dioxyde de carbone et d'hydrogène." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30187/document.
Climate change mitigation is one of the major challenges of our time. The anthropogenic greenhouse gases emissions have continuously increased since industrial revolution leading to global warming. A broad portfolio of mitigation technologies has to be implemented to fulfill international greenhouse gas emissions agreements. Some of them comprises the use of the underground as a storage of various substances. In particular, this thesis addresses the dynamics of carbon dioxide (CO2) and hydrogen (H2) underground storage. Numerical models are a very useful tool to estimate the processes taking place at the subsurface. During this thesis, a solute transport in porous media module and various multiphase flow formulations have been implemented in COMSOL Multiphysics (Comsol, 2016). These numerical tools help to progress in the understanding of the migration and interaction of fluids in porous underground storages. Three models that provide recommendations to improve the efficiency, monitoring and safety of the storages are presented in this manuscript: two in the context of carbon capture and storage (CCS) and one applied to underground hydrogen storage (UHS). Each model focus on a specific research question: Multiphase model on CCS. The efficiency and long-term safety of underground CO2 storage depend on the migration and trapping of the buoyant CO2 plume. The wide range of temporal and spatial scales involved poses challenges in the assessment of the trapping mechanisms and the interaction between them. In this chapter a two-phase dynamic numerical model able to capture the effects of capillarity, dissolution and convective mixing on the plume migration is applied to a syncline-anticline aquifer structure. In anticline aquifers, the slope of the aquifer and the distance of injection to anticline crest determine the gravity current migration and, thus, the trapping mechanisms affecting the CO2. The anticline structure halts the gravity current and promotes free-phase CO2 accumulation beneath the anticline crest, stimulating the onset of convection and, thus, accelerating CO2 dissolution. Variations on the gravity current velocity due to the anticline slope can lead to plume splitting and different free-phase plume depletion time is observed depending on the injection location. Injection at short distances from the anticline crest minimizes the plume extent but retards CO2 immobilization. On the contrary, injection at large distances from anticline crest leads to large plume footprints and the splitting of the free-phase plume. The larger extension yields higher leakage risk than injection close to aquifer tip; however, capillary trapping is greatly enhanced, leading to faster free-phase CO2 immobilization. Reactive transport model on convective mixing in CCS. Dissolution of carbon-dioxide into formation fluids during carbon capture and storage (CCS) can generate an instability with a denser CO2-rich fluid located above the less dense native aquifer fluid. This instability promotes convective mixing, enhancing CO2 dissolution and favouring the storage safety
Barochi, Guillaume. "Développement d'un capteur de gaz à transduction microonde." Phd thesis, Université de Bourgogne, 2013. http://tel.archives-ouvertes.fr/tel-00956823.
Erouel, Mohsen. "Etude sur les transistors organiques à vocation capteur de gaz : application à la détection de gaz nitrés." Lyon, INSA, 2008. http://theses.insa-lyon.fr/publication/2008ISAL0040/these.pdf.
Organic field effect transistors (OFETs) are now widely recognized for their potential applications in all fields of so-called "plastic electronics". The high development of those transistors is related to the possibility to use its on nitrous gas sensor elaboration. The development of those systems needs the use of adapted technologies, a low elaboration cost, working at low temperature, to be easy to transport, selective and stable. In this field, the objective of our work consists on developing organic transistors for nitrous derivates detection usually used on classical explosive system. The sensor elaboration needed the good realisation of many tasks. The first one consists on the selection of the dielectric allowing us to have a stable transistor. For this, two insulator materials were used: inorganic oxides with high dielectric value (Ta2O5, HfO2, ZrO2, Al2O3/ZrO2) deposited with a low temperature process and an organic insulating material, the polymethylmethacrylate PMMA deposited by spin-coating. Pentacene transistors using different dielectrics were elaborated in order to compare their electric efficiencies. The results analysis (morphologic and electric) permitted to understand the comportment of those systems under their general aspect in addition to the comportment of the used dielectrics. The study of the stability of the oligothienylenevinylenes derivatives based transistors selected for the detection of dinitrotoluen (DNT) was conduced. The measure of components derivates was realized by studies based on the stress influence following, humidity and temperature. Sensors responses to DNT vapour were followed. Detection is related to donor-acceptor reaction
Erouel, Mohsen Sassi Zina Jaffrezic-Renault Nicole Maaref M'hamed Ali. "Etude sur les transistors organiques à vocation capteur de gaz application à la détection de gaz nitrés /." Villeurbanne : Doc'INSA, 2008. http://docinsa.insa-lyon.fr/these/pont.php?id=erouel.
Rosini, Sébastien. "Capteur potentiométrique tout solide pour le dosage de l'hydrogène dans l'air." Grenoble INPG, 2003. http://www.theses.fr/2003INPG0028.
Gravelle, Alexandre. "Optimisation de l'efficacité et de la durabilité des traitements de puits à base de polymères et de microgels dans un contexte de réduction des venues de sable." Thesis, Vandoeuvre-les-Nancy, INPL, 2011. http://www.theses.fr/2011INPL063N.
Gas production from underground geological reservoirs in aquifers is sometimes associated with the erosion of solid particles from the rock matrix. These solids venues generated by the gas flow can cause damages to the equipment on site leading the operator to limit or stop the production of wells. The injection of hydro-soluble polymers (linear polyacrylamide or microgels) is one of the promising techniques employed today to reduce and, in some cases, stop the production of solids as demonstrated by the results of tests conducted in France on reservoirs of Storengy - GDF Suez.An experimental study was conducted to better understand the mechanisms underlying the performance of polymer treatments and to increase their efficiency. Two main aspects have been experimentally evidenced: sand grains consolidation and polymer coating of the pore surface. Tests were carried out to accurately assess the impact of the adsorption of polymer on the mobilization of particles (called fines) and a comprehensive study was conducted showing the properties of treatments to (re)consolidate the rock matrix. In the first case, the polymer acts as a physicochemical barrier preventing the detachment of fines that can form the inter-granular cement and the effectiveness of treatments is based on the proportion of pores surface covered by the polymer. In the second case, the polymer takes the place of cleaved cement; the effectiveness and durability of treatments thus depend on mechanical properties of the inter-granular solids bounds formed after drying of capillary bridges
Buissart, Hubert. "Le Wealdien du Bassin de Paris : approches sédimentologique et paléogéographiqueApplications au stockage souterrain de gaz naturel." Lille 1, 1989. http://www.theses.fr/1989LIL10173.
Hallil, Hamida. "Conception et réalisation d'un nouveau capteur de gaz passif communicant à transduction RF." Toulouse 3, 2010. http://thesesups.ups-tlse.fr/1028/1/Hallil_Hamida.pdf.
In this work, feasibility of gas sensors based on Titanium Dioxide (TiO2) dielectric resonator, operating with whispering-gallery modes, is presented. The gas or humidity adsorption modifies the TiO2 dielectric permittivity and such modification induces variation in the resonant frequencies of high-Q whispering-gallery modes in the millimeter-wave frequency range. Full-wave electromagnetic simulation demonstrates that the measurement of this variation allows the derivation of few parts-per-million (ppm) fluctuations in gas or humidity concentration. For validation purposes very first prototypes of resonator operating with whispering-gallery modes in the millimeter-wave frequency range are micro-machined. The measured performances confirm that such high-Q resonant modes are very sensitive to small variations in dielectric resonator permittivity. Moreover we validate experimentally that these small variations can be remotely detected from the RADAR interrogation of an antenna loaded by the whispering-gallery modes resonator
Saikaly, Khalil. "Contrôle-commande préventif d'un moteur de cogénération alimenté en gaz naturel par intégration d'un capteur de qualité du gaz." Nantes, 2009. http://www.theses.fr/2009NANT2041.
The goal of this thesis is to conceive a preventive protection technique for the cogeneration engines under the knock problem. The work relies an on-line monitoring of the gas methane number. In a first stage, a combustion simulator is developed based on a two-zone thermodynamic model which allows the evaluation of a knock estimator. This estimator is based on the evaluation of the energy of the unburned gases. The main scientific contribution brought by this study can be resumed by the following postulate : if two gases have the same tendency to knock, i. E. The same methane number, then they have the same ignition delay and speed of flame under the same motor setting. In a second stage, a test bench which uses a single-cylinder Sl engine is set up for 3 purposes : (1)to automatically control the different engine settings (i. E. Spark advance, load, and air-fuel ratio) : to vary the composition of gas and throughout its methane number and (3) to detect the knock by evaluating the IMPO. Finally, experiences showed the effect ot the methane number and engine settings on knock tendency. Experimental results were also compared with the results of simulations, which were then used to calibrate the numerical model. Subsequent to numerical results, a control map that gives the optimal engine setting with respect to a given methane number was created. The map was then successfully applied to the single-cylinder SI
Books on the topic "Capteur de gaz souterrain":
J, Baines Shelagh, and Worden Richard H, eds. Geological storage of carbon dioxide. London: Geological Society, 2004.
Projet Soligaz: Approvisionnement et entreposage souterrain de liquides de gaz naturel à Varennes. Québec: Bureau d'audiences publiques sur l'environnement, 1991.
Xie, Heping, Michael Z. Hou, and Jeoungseok Yoon. Underground Storage of CO2 and Energy. Taylor & Francis Group, 2010.
Xie, Heping, Michael Z. Hou, and Jeoungseok Yoon. Underground Storage of CO2 and Energy. Taylor & Francis Group, 2010.
Xie, Heping, Michael Z. Hou, and Jeoungseok Yoon. Underground Storage of CO2 and Energy. Taylor & Francis Group, 2010.
Division, NATO Public Diplomacy. Advances in the Geological Storage of Carbon Dioxide: International Approaches to Reduce Anthropogenic Greenhouse Gas Emissions (NATO Science). Springer, 2006.