Academic literature on the topic 'Carburants alternatifs'
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Journal articles on the topic "Carburants alternatifs"
DABILGOU, Téré, Oumar SANOGO, S. Augustin Zongo, Tizane Daho, Belkacem Zeghmati, Jean KOULIDIATI, and Antoine BERE. "Modélisation thermodynamique de combustion mono-zone de biodiesels dans un moteur diesel et estimation théorique des émissions potentielles." Journal de Physique de la SOAPHYS 2, no. 1a (February 13, 2021): C20A10–1—C20A10–10. http://dx.doi.org/10.46411/jpsoaphys.2020.01.10.
Full textHupalo, M. F., F. G. Martins, D. S. Ramos, and G. Warmling. "Técnicas de carburação em fornos rotativos a óleo de xisto e gás natural para a produção de ferros fundidos." Matéria (Rio de Janeiro) 15, no. 3 (2010): 413–21. http://dx.doi.org/10.1590/s1517-70762010000300004.
Full textVinocunga-Pillajo, Danilo Reni, Fabiola Maribel Jiménez Tamayo, Carlos Alfonso Sánchez Vallejo, and Aida Salomé Romero Vistín. "Obtención de bioetanol carburante a partir del lactosuero en la provincia de Chimborazo utilizando Super Pro designer." Ciencia Latina Revista Científica Multidisciplinar 7, no. 4 (August 10, 2023): 3149–63. http://dx.doi.org/10.37811/cl_rcm.v7i4.7164.
Full textLopes, Maíra Bacha, Andrea Lago da Silva, and Luiz Fernando Paulillo. "Características das transações do etanol carburante entre distribuidoras e revendedores." Gestão & Produção 18, no. 2 (2011): 325–36. http://dx.doi.org/10.1590/s0104-530x2011000200008.
Full textMarulanda López, Tatiana, Luisa Fernanda Zapata Osorno, and María Consuelo Jaramillo Flórez. "Producción de Bioetanol a partir de Elodea sp." Ingenierías USBMed 8, no. 1 (February 27, 2017): 37–42. http://dx.doi.org/10.21500/20275846.2685.
Full textQuintero Bertel, Quelbis Román, Celso Libardo Mateus Pineda, Luis Guillermo Muñoz angulo, and Jhoan Manuel Torres pérez. "Obtención de bioetanol carburante a partir de la remolacha forrajera (beta vulgaris l.) Como alternativa para biomas premontano - montano bajo." Revista Clepsidra 4, no. 7 (December 23, 2008): 47–54. http://dx.doi.org/10.26564/19001355.284.
Full textSampaio, Mateus. "Afinal, alternativo a que? Agente motriz, álcool-motor, carburante nacional, álcool anidro, álcool hidratado ou etanol: o combustível “verde” (-”amarelo”)." Cadernos CERU 25, no. 2 (June 4, 2015): 39–66. http://dx.doi.org/10.11606/issn.2595-2536.v25i2p39-66.
Full textCeron, Jean-Paul, Paul Peeters, and Ghislain Dubois. "L’aviation, le tourisme et la décarbonation dans les décennies à venir : impasses, solutions et incertitudes." Natures Sciences Sociétés 31, no. 3 (July 2023): 312–24. http://dx.doi.org/10.1051/nss/2024007.
Full textRosero, Viviana Jazmín Rea, Jonathan Alexander Carrera, Jonny Enrique Chimbo, Carlos Jácome Pilco, and Deisy Mrgoth Guana. "Obtencion de Etanol a partir residuos agricolas obtaining of bioethanol from lignocellulosic agricultural waste." STUDIES IN ENVIRONMENTAL AND ANIMAL SCIENCES 3, no. 3 (September 2, 2022): 1612–31. http://dx.doi.org/10.54020/seasv3n3-023.
Full textMenia, Sabah, Ilyés Nouicer, Yasmina Bakouri, Abdelhamid M’raoui, Hammou Tebibel, and Abdallah Khellaf. "Production d’hydrogène par procédés biologiques." Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 74 (2019): 34. http://dx.doi.org/10.2516/ogst/2018099.
Full textDissertations / Theses on the topic "Carburants alternatifs"
Parant, Gaël. "Effet des carburants alternatifs sur les instabilités de combustion dans un moteur aéronautique." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST186.
Full textAviation fuels will inevitably evolve due to dwindling oil resources and new environmental requirements. In the short term, these new fuels (called drop-in) will have to meet the same standards as conventional kerosene, since they will be used by the existing fleet of aircraft. The composition of drop-in fuels is a mixture of various sources (conventional fuel, animal resources, plant resources, etc.). The first stage of the thesis work was to establish a link between the composition of the fuels and their properties, in order to limit the combinations to be studied. The two properties selected were: the aromatic content and the shape of the distillation curve. Thirteen fuels were then formulated to study the effect of the physical properties of alternative fuels on flame stability. These fuels are injected as sprays into aeronautical chambers and evaporate before burning. The INCOPLADIS experimental setup, combined with ILIDS measurements, has been used to study the evaporation dynamics of fuel droplets in the vicinity of a hot front. In conjunction with these measurements, a new algorithm for post-processing ILIDS has been developed to quantify the distance and evaporation delay. These measurements revealed that under certain conditions, it is necessary to take into account the inertia of the droplets when estimating the evaporation delay. In order to minimize the influence of spray characteristics, a monodisperse injection bench, called MOCA, was developed to compare the thirteen fuels formulated with iso-spray. This comparison is based mainly on LIF measurements, which have enabled six types of flame structures to be identified. These measurements indicate that flame stability is particularly influenced by the content of aromatic compounds in the fuel, even at low concentrations
Saldana, Miranda Diego. "Méthodes d'apprentissage automatique pour l'aide à la formulation : Carburants Alternatifs pour l'Aéronautique." Paris 6, 2013. http://www.theses.fr/2013PA066346.
Full textAlternative fuels and biofuels are a viable and attractive answer to problems associated to the current widespread use of conventional fuels in vehicles. One interesting aspect of alternative fuels is that the range of possible chemical compounds is large due to their diverse biological origins. This aspect opens up the possibility of creating “designer fuels”, whose chemical compositions are tailored to the specifications of the fuel being replaced. In this regard, it would be interesting to develop accurate predictive methods capable of instantaneously estimating a fuel’s physico-chemical properties based solely on its chemical composition and structures of its components. In this PhD work, we have investigated the application of machine learning methods to estimate properties such as flash point, enthalpy of combustion, melting point, cetane number, density and viscosity for families of compounds and mixtures similar to those found in biofuels: hydrocarbons and oxygenated compounds. During the first part of this work, machine learning models of pure compound properties were developed. During the second part mixtures have been examinated, two types of approaches were investigated: (1) the direct application of machine learning methods to mixture property data; (2) the use of the previously developed pure compound property models in combination with theoretically based mixing rules. It was found that machine learning methods, especially support vector machine methods, were an effective way of creating accurate and robust models. It was further found that, in the absence of sufficiently large or representative datasets, the use of mixing rules in combination with machine learning is a viable option. Overall, a number of accurate, robust and fast property estimation methods have been developed as a means to guide the formulation of alternative fuels
Bougrine, Sabre. "Modélisation 0D de la combustion des carburants alternatifs dans les moteurs à allumage commandé." Phd thesis, Ecole Centrale Paris, 2012. http://tel.archives-ouvertes.fr/tel-00740654.
Full textNaudin, Thomas. "Etude des effets de la micro-gravité sur l'atomisation de gouttes de carburants alternatifs émulsionnés." Electronic Thesis or Diss., Nantes Université, 2024. http://www.theses.fr/2024NANU4007.
Full textThe interest in fuel emulsification using water lies in improving combustion quality (and reducing pollutant emissions) through secondary atomization of the droplet, known as micro-explosion. As this phenomenon's likelihood depends on several parameters, studying the impact of each of these factors on micro-explosion occurrence is crucial. The aim of the work presented in this manuscript is to enhance understanding of the micro-explosion phenomenon. To achieve this, the study examines the behavior of the dispersed aqueous phase in the form of fine droplets during the heating period of the so-called "mother" droplet. It appears that the coalescence of the dispersed phase seems to be a factor improving the quality and likelihood of micro-explosion occurrence. Additionally, the behavior of the dispersed phase seems to depend on internal liquid stirring induced by natural convection mechanisms. With this perspective, optical diagnostics based on Laser-Induced Fluorescence have been implemented to visualize the temperature field inside a droplet and detect any temperature gradients. Finally, an automated experimental setup intended for use in microgravity conditions has been developed. The experiments provided evidence confirming the predominance of surface tension effects on the flow inside the droplet
Hassan, Mohamad. "Conversion en diesel-gaz d'un moteur diesel à injection directe de faible puissance." Valenciennes, 1992. https://ged.uphf.fr/nuxeo/site/esupversions/be2998f3-db38-4ee2-a7bd-e9ed853663aa.
Full textKerihuel, Anthony. "Étude de la formulation et de la combustion de carburants alternatifs à base de graisses animales pour moteur à allumage spontané." Nantes, 2007. http://www.theses.fr/2007NANT2072.
Full textThe energy valorization of animal greases in an engine with spontaneous lighting seems one of the possible alternatives in order to secure reduction in the reserves in fossil energies and to reduce the gas emissions for purpose of greenhouse. Animal greases present properties of combustion close to the gas oil (LHV and index cetane) but some their physical properties, such viscosity and the temperature of solidification, makes them not easily usable directly in a diesel engine. The characterization of greases of various origins showed that those are different only by their composition in fatty acids. In addition, the acid content fatty saturated is the principal cause of a viscosity and a temperature of solidification high. However, the transformation of this biomass into a stable emulsion containing an alcohol (methanol or ethanol) of water and surfactant makes it possible to obtain one biocarburant liquid at ambient temperature. Emulsions optimum of animal greases are then carried out. Tests out of diesel engine are carried out in order to measure the performances and the pollutant emissions resulting from the use of the formed emulsions. The results are convincing because the emissions of gaseous pollutants and particles are considerably reduced compared to the use of pure grease or gas oil. The modeling of the injection of a drop of emulsion in the combustion chamber shows that the phenomenon of the “microexplosion”, due to the abrupt evaporation of the water dispersed under the effect of heat, explains the reductions noted on the level of the pollutant emissions
Rojo, Carolina. "Impact environnemental des aérosols formés dans les panaches d'avions : modélisation et application à l'utilisation de carburants alternatifs." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00829919.
Full textRojo, Escude-Cofiner Carolina. "Impact environnemental des aérosols formés dans les panaches d'avions : modélisation et application à l'utilisation de carburants alternatifs." Thesis, Strasbourg, 2012. http://www.theses.fr/2012STRAF047/document.
Full textAircraft emit important amounts of particulate and gaseous matter in the atmosphere contributing on the one hand to local air pollution and on the other hand to the atmospheric radiative forcing and to climate change. Introducing alternative fuels in aviation can be considered as a viable option to reducing the impact of aviation, being economically and environmentally sustainable. These selected biofuels tend to have lower aromatic and sulphur contents inducing a simultaneous reduction in sulphuric acid and soot emissions. However modifying the nature and composition of the fuel used can entail unexpected consequences. It is therefore essential to study and determine the evolution of aerosols in the aircraft plume. To manage this task, a microphysical trajectory box, previously tested with standard kerosene, has been developed. After an assessment concerning the typical emissions from the combustion of biofuels in aviation, simulations have been undertaken in order to predict aerosol evolution. Several microphysical processes have been revised such as droplet homogeneous freezing or the behaviour of organic compounds
Gaillot, Tiphaine. "Évaluation de l’impact des émissions aériennes sur le changement climatique : développement de la méthode d’Analyse du Cycle de Vie et recommandations pour la sélection de carburants alternatifs." Electronic Thesis or Diss., Sorbonne université, 2023. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2023SORUS538.pdf.
Full textGiven the increase in demand from the aviation sector and its emissions, we need to assess the impact of aviation on the environment. This thesis focuses on the impact of aviation emissions on climate change. This category is the most impacted by subsonic aircraft. Various levers have been deployed to mitigate this impact, including the incorporation of alternative fuels. The Life Cycle Assessment method is the one used in this work. The aim is to assess all emissions having a direct and indirect impact on climate change during a long-haul or short-haul, for the fossil fuel Jet A-1, and alternative jet fuels such as FT-SPK (paraffinic kerosene from Fischer-Tropsch synthesis) and hydrogen. As most of the fuel is burnt at high altitude during the cruise phase and the majority of emissions have a greater impact at cruising altitudes, we first look at the nature of emissions at high altitude and their impact on climate change, based on GWP (global warming potential) at different time horizons. The assessment of high-altitude emissions for different types of jet fuel over 20 and 100-year time horizons illustrated the crucial role of short-lived climate forcers, especially nitrogen oxides and contrails-cirrus. In a second stage, the scope of the air transport assessment has been extended to include the airport, the aircraft, and the production and use of the fuel. These results demonstrate the importance of high-altitude emissions and the production phase in the complete assessment. The thesis concludes with an assessment of the impact of emissions during the use and production phase of fuel mix in 2050, based on the different energy demands specific to the of the International Energy Agency (IEA) report published in 2022. The development of low-emission processes, as well as changes in behavior and the implementation of specific sobriety policies, are essential to reducing the environmental impact of the aviation sector
Karsenty, Florent. "Etude expérimentale et modélisation de la cinétique de combustion de carburants aéronautiques alternatifs synthétiques et de mélanges-modèles." Thesis, Orléans, 2014. http://www.theses.fr/2014ORLE2030/document.
Full textCurrent liquid fuels are mainly from petroleum refining. However, replacing them with new-generation alternatives fuels, renewable, from biomass and cleaner appear to be an economic and environmental necessity. Goals are to reduce petroleum dependency whose price increases and supplies decreases, and limit emissions of carbon dioxide (greenhouse gas emissions). The adaptation of existing engines to these new fuels requires a thorough knowledge of their kinetic of combustion and the nature and concentrations of pollutants formed during their use. Research activities on alternative fuels for the aviation industry have considerably increased in recent years. In this study we are interested in the "synthetic fuels" solution that offers encouraging prospects for the future. Studies on the kinetic of oxidation were carried out in a Jet Stirred Reactor (JSR) over a wide range of experimental conditions at the Institute of Combustion Aerothermal Reactivity and Environment on the campus of the CNRS of Orléans. These studies were initially conducted on pure hydrocarbons which could be good candidates as models molecules to represent the isoparaffins cut in a synthetic kerosene. These molecules are isomers of iso-octane used as such until now. In a second step, studies were conducted on three synthetic kerosene, a SPK provided by IFP, a CtL (Sasol) and GTL (Shell). Analyses by Fourier transform infrared spectrometry (FTIR) and by gas chromatography (GC-FID-TCD-MS) allowed us to measure the concentration profiles of reactants, stable intermediates and finals products as a function of temperature. Detailed kinetic mechanisms adapted to the studied compounds have been developed and validated by comparison with experimental results
Books on the topic "Carburants alternatifs"
Ontario. Legislative Assembly. Select Committee on Alternative Fuel Sources. Select Committee on Alternative Fuel Sources final report =: Comité spécial des sources de carburants de remplacement : rapport final. Toronto, Ont: Legislative Assembly of Ontario = Assemblée législative de l'Ontario, 2002.
Find full textResearch and Technology Organization. Applied Vehicle Technology Panel. Symposium. Gas turbine engine combustion, emissions and alternative fuels =: La combustion dans les turbomoteurs, les emissions et les carburants de remplacement : papers presented at the Applied Vehicle Technology Panel Symposium organised by the former AGARD Propulsion and Energetics Panel held in Lisbon, Portugal, 12-16 October 1998. Neuilly-sur-Seine: Research and Technology Organization, 1999.
Find full textNatural gas, an alternative transportation fuel =: Le Gaz naturel, un carburant de rechange. [Ottawa] Energy, Mines and Resources Canada, 1985.
Find full textGregg, Forest. Svo: Powering Your Vehicle with Straight Vegetable Oil. New Society Publishers, Limited, 2008.
Find full textGoodwin, Christopher, and Forest Gregg. Svo: Powering Your Vehicle with Straight Vegetable Oil. New Society Publishers, Limited, 2008.
Find full textEstill, Lyle. Biodiesel Power: The Passion, the People, and the Politics of the Next Renewable Fuel. New Society Publishers, Limited, 2009.
Find full textReports on the topic "Carburants alternatifs"
FONTECAVE, Marc, Sébastien CANDEL, and Thierry POINSOT. L'hydrogène aujourd'hui et demain. Académie des sciences, April 2024. http://dx.doi.org/10.62686/5.
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