Academic literature on the topic 'Biomasse – Combustion – Modèles mathématiques'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Biomasse – Combustion – Modèles mathématiques.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Biomasse – Combustion – Modèles mathématiques":
Mavouroulou Quentin, Moundounga, Ngomanda Alfred, and Lepengue Nicaise Alexis. "Etat des Lieux des Incertitudes Liées à l’Estimation de la Biomasse des Arbres (Revue Bibliographique)." European Scientific Journal, ESJ 19, no. 6 (February 28, 2023): 60. http://dx.doi.org/10.19044/esj.2023.v19n6p60.
Quentin, Moundounga Mavouroulou, Ngomanada Alfred, and Lepengue Nicaise Alexis. "Estimation de la Biomasse des Arbres et Incertitudes Associées (Revue Bibliographique)." European Scientific Journal ESJ 11 (November 28, 2022). http://dx.doi.org/10.19044/esipreprint.11.2022.p656.
Rostand-Mathieu, Amélie, Paul-Henry Cournède, and Philippe Reffye. "A dynamical model of plant growth with full retroaction between organogenesis and photosynthesis." Revue Africaine de la Recherche en Informatique et Mathématiques Appliquées Volume 4, 2006 (August 22, 2006). http://dx.doi.org/10.46298/arima.1844.
Dissertations / Theses on the topic "Biomasse – Combustion – Modèles mathématiques":
Goussougli, Matieyendou. "Modélisation cinétique détaillée de la pyrolyse de la biomasse : application à des structures de type hémicellulose." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0327.
StructuresThis thesis focused on a detailed kinetic modeling study of biomass pyrolysis and its application to hemicellulose-type structures. In a first part of the work, we considered the thermal degradation of β-1,4-xylan from concerted unimolecular processes. β-1,4-xylan represents the backbone of a large number of hemicelluloses and a detailed and exhaustive study of the reaction pathways involved in its pyrolysis has been carried out from electronic structures calculations, at the CBS-QB3 level of theory. These calculations were coupled with statistical thermodynamics and transition state theory to determine the associated rate constants. In this work, we highlighted low energy reaction pathways capable of explaining the formation of compounds observed experimentally. Furthermore, we showed that the easiest route goes through a ring-opening of the terminal reducing end-chain followed by successive decompositions from unimolecular concerted reactions, including retro-ene, retro Diels-Alder, retro-aldol reactions, or specific reactions such as keto-enolic isomerizations or CO eliminations. The exhaustive and comparative construction of the mechanism permitted to highlight an iterative polymer consumption mechanism, in which two fragments are reformed with the same molecular structure, but with one less xylose ring at each iteration. In a second part, we added an acetyl function to β-1,4-xylan, a chemical function frequently involved in hemicelluloses. During pyrolysis, the acetyl group can easily react to form acetic acid and an unsaturated fragment. A detailed analysis of the decomposition mechanism of this fragment has permitted to show low energy pathways involved in the formation of formic acid as well as light compounds. A specific route forming CO2 was also found with low energy barriers. Again, it was possible to highlight an iterative mechanism involving fragments whose chemical structure were conserved but whose degree of polymerization decreases with each iteration
Hadj, Ali Kamal. "Étude cinétique de l'oxydation et de l'auto-inflammation en milieux gazeux homogène pauvre et ultra pauvre de carburants de substitution issus de la biomasse." Lille 1, 2007. http://www.theses.fr/2007LIL10004.
Dhahak, Amal. "Modélisation chimique détaillée de la combustion de la biomasse dans les appareils de chauffage domestique en vue de réduire leurs émissions polluantes." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0017.
This thesis aims to understand and model the chemical mechanisms of biomass combustion in domestic heating appliances to reduce polluting emissions. For this purpose, a global model of combustion has been developed. This model considers both detailed chemical kinetics and heat transfer. The first part of this work consisted of developing a kinetic model to represent the devolatilization of biomass as well as the secondary gas phase combustion reactions of the species emitted during primary pyrolysis. According to the used kinetic model of pyrolysis, the biomass is characterized as a mixture of three so-called reference constituents: cellulose, hemicellulose and lignin. To know the limitations of the studied model, it has been tested on several cases of primary pyrolysis. A model of secondary pyrolysis and combustion was added to the model representing primary pyrolysis. This secondary model is composed of oxidation mechanisms for products formed by pyrolysis, such as hydroxyacetaldehyde, furan and its derivatives, furfural, anisole, guaiacol ... This secondary model, as well as the new global model developed BioPOx (Biomass Pyrolysis and Oxidation) have been tested on a large number of experimental results. In a second part, the kinetic model considering both the primary pyrolysis and the thermal cracking of the emitted gaseous species, is coupled to a simplified model of heat transfer to model the combustion of a log of wood in a stove represented by a network of ideal chemical reactors. The global model, coupling the kinetic and thermal parts, reproduces experimental results on gaseous emissions (CO, CO2, NO) obtained in a wood stove
Dhahak, Amal. "Modélisation chimique détaillée de la combustion de la biomasse dans les appareils de chauffage domestique en vue de réduire leurs émissions polluantes." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0017.
This thesis aims to understand and model the chemical mechanisms of biomass combustion in domestic heating appliances to reduce polluting emissions. For this purpose, a global model of combustion has been developed. This model considers both detailed chemical kinetics and heat transfer. The first part of this work consisted of developing a kinetic model to represent the devolatilization of biomass as well as the secondary gas phase combustion reactions of the species emitted during primary pyrolysis. According to the used kinetic model of pyrolysis, the biomass is characterized as a mixture of three so-called reference constituents: cellulose, hemicellulose and lignin. To know the limitations of the studied model, it has been tested on several cases of primary pyrolysis. A model of secondary pyrolysis and combustion was added to the model representing primary pyrolysis. This secondary model is composed of oxidation mechanisms for products formed by pyrolysis, such as hydroxyacetaldehyde, furan and its derivatives, furfural, anisole, guaiacol ... This secondary model, as well as the new global model developed BioPOx (Biomass Pyrolysis and Oxidation) have been tested on a large number of experimental results. In a second part, the kinetic model considering both the primary pyrolysis and the thermal cracking of the emitted gaseous species, is coupled to a simplified model of heat transfer to model the combustion of a log of wood in a stove represented by a network of ideal chemical reactors. The global model, coupling the kinetic and thermal parts, reproduces experimental results on gaseous emissions (CO, CO2, NO) obtained in a wood stove
Creyx, Marie. "Étude théorique et expérimentale d’une unité de micro-cogénération biomasse avec moteur Ericsson." Thesis, Valenciennes, 2014. http://www.theses.fr/2014VALE0026/document.
Nowadays, the micro combined heat and electrical power (micro-CHP) systems are developing in Europe, in particular because of their interest in terms of primary energy savings. The use of biomass fuel in micro-CHP systems enhances the share of renewable energy in the energy mix. The objective of this work is to develop a test bench for a biomass-fuelled micro-CHP unit composed of a pellet boiler, an Ericsson type hot air engine (decomposed into a compression and an expansion part) and a burned gas-pressurized air heat exchanger inserted in the boiler. Models of every component have been established to characterize their working conditions depending on influent parameter settings and to size the micro-CHP unit. Two models of Ericsson engine, with established and dynamic regimes, were implemented. The preponderant influence of the temperature and pressure conditions at the inlet of the expansion cylinder and of the timing of valve closing on the engine performances are shown. The dynamic model shows the effect of considering the dynamic losses (pressure loss, heat transfer at the cylinder wall, mechanical friction) on the estimation of engine performances. Two models of the heat exchanger allow the characterization of the heat transfers crossing it, taking into account the radiation and the fouling by soot particles on the side of combustion gases. Experimental measurements obtained from the test bench of the micro-CHP unit set up were used in the developed models
Suard, Sylvain. "Propagation pulsatoire des flammes de brouillard." Laboratoire de modélisation et simulation numérique en mécanique et génie des procédés (Marseille), 2004. http://www.theses.fr/2004AIX22100.
Bourlouka, Alexey. "Améliorations des modèles de combustion turbulente en milieu homogène." Rouen, 1996. http://www.theses.fr/1996ROUES031.
Xexo, Gjergj. "Flamme de diffusion turbulente dans un écoulement transversal : comportement dynamique et rayonnement." Toulouse, INPT, 1994. http://www.theses.fr/1995INPT082H.
Ben, Taib Ahmed. "Etude mathématique et numérique d'un modèle de combustion turbulente." Lyon 1, 1993. http://www.theses.fr/1993LYO10245.
El, Hamidi Abdallah. "Analyse asymptotique et simulation numérique de problèmes de combustion." Lyon 1, 1996. http://www.theses.fr/1996LYO10022.
Books on the topic "Biomasse – Combustion – Modèles mathématiques":
Colannino, Joseph. Modeling of combustion systems: A practical approach. Boca Raton, FL: CRC Press, 2006.
Heng, Yeoh Guan, and Yuen Kwok Kit, eds. Computational fluid dynamics in fire engineering: Theory, modelling and practice. Amsterdam: Elsevier, 2009.
Janssens, Marc L. Introduction to Mathematical Fire Modeling. Taylor & Francis Group, 2000.
Janssens, Marc L. Introduction to Mathematical Fire Modeling. Taylor & Francis Group, 2000.
Stiesch, Gunnar. Modeling Engine Spray and Combustion Processes (Heat and Mass Transfer). Springer, 2003.
Reducing CO2 Emissions. Springer Verlag, 1992.