Добірка наукової літератури з теми "Oxygène et méthane liquides"
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Статті в журналах з теми "Oxygène et méthane liquides":
Richard, S., A. Grégoire, and P. Gosse. "Efficacité d'un seuil artificiel sur l'oxygénation de l'eau et l'élimination de CH4 contenu dans l'eau évacuée par la barrage hydroélectrique de Petit Saut (Guyane française)." Revue des sciences de l'eau 18 (April 12, 2005): 127–41. http://dx.doi.org/10.7202/705580ar.
Wijnen, J., and A. van Tiggelen. "L'échange hydrogène-deutérium dans les mélanges de méthane, hydrogène et oxygène." Bulletin des Sociétés Chimiques Belges 57, no. 10-12 (September 1, 2010): 446–66. http://dx.doi.org/10.1002/bscb.19480571004.
Hanafi, Fatiha, Nadia Sadif, Omar Assobhei, and Mohammed Mountadar. "Traitement des margines par électrocoagulation avec des électrodes plates en aluminium." Revue des sciences de l'eau 22, no. 4 (October 22, 2009): 473–85. http://dx.doi.org/10.7202/038326ar.
Khamar, Mohamed, Driss Bouya, and Claude Ronneau. "Pollution métallique et organique des eaux et des sédiments d’un cours d’eau marocain par les rejets liquides urbains." Water Quality Research Journal 35, no. 1 (February 1, 2000): 147–61. http://dx.doi.org/10.2166/wqrj.2000.009.
SAUVANT, D., and P. NOZIÈRE. "La quantification des principaux phénomènes digestifs chez les ruminants : les relations utilisées pour rénover les systèmes d’unités d’alimentation énergétique et protéique." INRAE Productions Animales 26, no. 4 (August 18, 2013): 327–46. http://dx.doi.org/10.20870/productions-animales.2013.26.4.3162.
Bories, André. "Mise au point sur la dépollution et la valorisation énergétique des déchets et sous-produits de distilleries par fermentation méthanique." OENO One 19, no. 2 (June 30, 1985): 117. http://dx.doi.org/10.20870/oeno-one.1985.19.2.1317.
Iddou, Abdelkader, and Mohand Said Ouali. "Étude de l'élimination de Cr(VI) par une boue biologique après épandage." Water Quality Research Journal 40, no. 2 (May 1, 2005): 184–90. http://dx.doi.org/10.2166/wqrj.2005.021.
Дисертації з теми "Oxygène et méthane liquides":
Lechner, Valentin. "Experimental study of LOX/CH4 flames in rocket engines." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST040.
Using methane as a fuel in rocket engines would have many advantages but the combustion with pure oxygen at high pressure remains poorly understood. From a thermodynamic point of view, methane and oxygen share very similar critical point values, making it challenging to predict propellant mixing, flame anchoring, stability and structure. Moreover, when methane is injected in excess, aerosols can be produced, which can clog the lines, damage the turbine, and reduce the efficiency.Therefore, a thorough update of the knowledge of LOX/CH4 combustion is necessary. These challenges are tackled within the consortium composed of EM2C laboratory, ONERA, CNES, and ArianeGroup. Two test campaigns are carried out at the MASCOTTE facility from ONERA, aiming to study three central topics: the flame structure, wall heat transfers, and aerosol production. To this end, various experimental diagnostics are implemented simultaneously during high-pressure hot-fire tests.Various imaging diagnostics are implemented to analyze the flame structure and the dense liquid jets. Despite the acquisition difficulties encountered in these extreme conditions, the analyses reveal a complex flame structure. In the subcritical regime, atomization and evaporation mechanisms dominate. The flame is much more opened and longer than at higher pressures, where diffusive mixing mechanisms prevail. Characterizing flame anchoring remains a challenge. A water ice ring surrounding, and masking, the flame foot has been identified. Formation mechanisms are proposed, and a growth/destruction temporal cycle is highlighted. Its presence strongly affects flame visualizations, and may lead to misinterpretations of its topology.Laser-induced phosphorescence (LIP) is implemented for the first time at MASCOTTE. Various LIP methods exist, but they are not well suited to the MASCOTTE conditions: wide temperature range, thermal transients, and two-phase flow environment favoring laser absorption/diffusion. Therefore, a specific method, the Full Spectrum Fitting method (FSF method), has been developed. It exploits the spectral dependence on temperature, enabling instantaneous measurements from 100 to 900 K with a precision of 17 K, with no dependence on the laser excitation energy. A detailed data analysis highlights the predominant wall heat transfer modes, studies the influence of the operating points, and compares the experimental data with a wall heat transfer model, which is particularly well suited for deducing the convective properties of the flow.Three diagnostics are used to characterize aerosols. An intrusive probe samples particles and burnt gases downstream of the flame. The particles are sampled on TEM grids and analyzed by Transmission Electron Microscopy. Detailed images of the aerosol morphology reveal that the particles are soot. Combustion products are analyzed by gas chromatography. This makes it possible to identify soot precursor molecules such as benzene and acetylene. Soot are quantified temporally by laser extinction. A dedicated post-processing method is developed and various hypotheses are discussed to explain the spatial variations of the soot production downstream of the flame
De, Stefani Vania. "Etude de la solubilité de solides à pression modérée, liée au domaine de la cryogénie : mesures et modélisation." Paris, ENMP, 2003. http://www.theses.fr/2003ENMP1125.
Jacquemin, Johan. "Etude thermodynamique de liquides ioniques non aqueux." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2006. http://tel.archives-ouvertes.fr/tel-00693921.
Gispert, Camille. "Conception et développement d’un microcapteur stérilisable pour la mesure de traces et d’ultratraces d’oxygène dissous." Toulouse 3, 2010. http://www.theses.fr/2010TOU30179.
The intensification of industrial processes and the development of new compounds in biotechnologies and pharmacy need to use new parameters and increase the performance of current sensors. The on line dissolved oxygen monitoring is essential in many industrial processes. Sensors are placed in harsh environments. The design of a sterilizable dissolved oxygen micro sensor requires news electrolytes materials and a new MEMS design. This multidisciplinary approach has permit to get prototypes running on a temperature wide range
Xia, Meng. "Etudes expérimentales et numériques de la pyrolyse et l’oxydation du charbon pulvérisé dans les flammes étirées de méthane/oxygène/azote." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLC060/document.
In the present work, a laboratory-scale laminar strained configuration is used to investigate the characteristics of pulverized coal devolatilization and oxidation in a mixture of CH4/O2/N2 reactive flow both in conventional air conditions and in oxygen-enriched combustion conditions. Two optical diagnostics, Flame Emission Spectroscopy and measurement of spontaneous emission, are employed for the characterization of flame structure. The spatial concentration evolution of three excited radicals, OH*, CH*and C*2 , are measured and analyzed.1-D simulations using detailed gas-phase kinetics including OH*, CH*, and C*2 sub-mechanisms and coal combustion submodels are performed and compared with experimental data. Qualitative comparison with experiments showed that the current numerical configuration was suitable for the prediction of OH*, CH* and C*2 emission. The predicted results differed with changes to the coal sub-models and kinetic parameters. The devolatilization model and volatile matters seem to play more important roles
APPORA, GNEKINDY IRMA. "Etude experimentale du fractionnement isotopique du carbone et de l'oxygene dans les systemes co 2-carbonates liquides : application au contexte carbonatitique." Paris 7, 1998. http://www.theses.fr/1998PA077170.
De, Sant'ana Hosibero Batista. "Mesure et modélisation des propriétés volumétriques et de la viscosité d'hydrocarbures liquides et de gaz à haute pression." Clermont-Ferrand 2, 2000. http://www.theses.fr/2000CLF2A002.
Humbert, Franck. "Solubilité de l'azote dans les silicates liquides influence de la fugacité d'oxygène et de la composition." Nancy 1, 1998. http://www.theses.fr/1998NAN10250.
Jorat, Luc. "Propriétés électriques et diélectriques des liquides organiques refroidis jusqu'à leur température de transition vitreuse." Saint-Etienne, 1987. http://www.theses.fr/1987STET4015.
Gontharet, Swanne. "Les suintements hydrothermaux froids et leur impact sur l'écosystème benthique." Paris 6, 2006. http://www.theses.fr/2006PA066364.