Academic literature on the topic 'Combustion gases'

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Journal articles on the topic "Combustion gases"

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Prada, Abelardo, and Caroll E. Cortés. "La descomposición térmica de la cascarilla de arroz: Una alternativa de aprovechamiento integral." Orinoquia 14, no. 2 sup (December 1, 2010): 155–70. http://dx.doi.org/10.22579/20112629.103.

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RESUMEN: El presente trabajo se orientó a capturar los gases de combustión de la cascarilla de arroz para transformarlos en carbonato de calcio (CaCO ), sustancia útil en labores agrícolas. Se demostró que los gases de combustión de la cascarilla pueden ser capturados en soluciones acuosas de KOH y NaOH, de las cuales se obtiene CaCO con la adición de CaCl2 en solución acuosa Se determinaron las características del proceso de combustión (masa de cascarilla, temperatura y masa de ceniza), de la captura de los gases (tiempo de reacción, pH y t, (ºC)), de la precipitación del CaCO (masa de CaCl2 requerida) y la masa de CaCO obtenido.Palabras clave: Combustión, aprovechamiento integral, captura de dióxido de carbono, carbonato de calcio, uso agrícola.SUMMARY: The present work was aimed at capturing the gases of combustion of rice husk to transform them into calcium carbonate (CaCO ), a substance useful in agriculture It was shown that the combustion gases from the rice husk can be captured in aqueous solutions of KOH and NaOH, of which CaCO3 is obtained by adding CaCl2 aqueous. Characteristics were determined from the combustion process (mass scale, temperature and mass of ash) of the capture of gases (reaction time, pH and t ° C), the precipitation of CaCO3 (mass of CaCl2 required) and the mass CaCO obtained.Key words: Combustion, integral use, capture of carbon dioxide, calcium carbonate, land use
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Vitázek, I., J. Klúčik, D. Uhrinová, Z. Mikulová, and M. Mojžiš. "Thermodynamics of combustion gases from biogas." Research in Agricultural Engineering 62, Special Issue (December 28, 2016): S8—S13. http://dx.doi.org/10.17221/34/2016-rae.

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Biogas as a respected source of renewable energy is used in various areas for heating or in power cogeneration units. It is produced by anaerobic fermentation of biodegradable materials. The utilization of biogas is wide – from process of combustion in order to obtain thermal energy, combined heat and power production, gas combustion engines, micro turbines or fuel cells up to trigeneration. Biogas composition depends on the raw material. The aim of this paper was to develop a new methodology; according to this methodology, by means of gas mixture thermodynamics and tabular exact parameters of individual gaseous components, all the necessary thermodynamic and operating values of biogas composition were calculated. The mathematical model of biogas combustion was elaborated. For an accurate realization of calculation, a computing program was designed.
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Howard, J. R. "Deposition from combustion gases." Heat Recovery Systems and CHP 10, no. 3 (January 1990): 297. http://dx.doi.org/10.1016/0890-4332(90)90010-h.

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Ozturk, Suat. "A Numerical Investigation on Emissions of Partially Premixed Shale Gas Combustion." International Journal of Heat and Technology 38, no. 3 (October 15, 2020): 745–51. http://dx.doi.org/10.18280/ijht.380319.

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The adiabatic, turbulent, and partially premixed combustions of several shale gases and air in a co-axial type combustor are computationally examined under the effects of different equivalence ratios, inlet temperatures, flow rates, humidity ratios, pressure, oxid inlet temperatures and flow rates, and swirl velocities in this study. Shale gases are extracted from Barnette, New Albany, Fayetteville, and Haynesville areas of USA. ANSYS software is used for numerical calculations of combustion. Results show that the maximum NO emissions for Barnette, New Albany, Fayetteville, and Haynesville shale gas occur at the equivalence ratio of 1.42, 1.41, 1.4, and 1.39. The rising fuel inlet temperature increase NO and reduces CO emissions after 300 K. The increasing humidity ratio causes NO and CO mass fractions to decrease. The ascending pressure raises NO up to 4 bar and lowers CO emissions. The increasing oxid flow rate abates the mass fractions of both NO and CO. The rising swirl velocity escalates NO up to 15 m/s and decreases CO emissions for all the shale gas combustions.
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Alturaihi, Muna Hameed, Mahmoud Atallah Mashkour, and Sanaa Turki Mousa AL-Musawi. "Effects of Hydrogen and Nitrogen Concentration on Laminar Burning Velocities and NO, CO Formation of Propane-Air Mixtures." Mathematical Modelling of Engineering Problems 9, no. 4 (August 31, 2022): 1131–35. http://dx.doi.org/10.18280/mmep.090432.

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With the development of the uses of hydrocarbon compounds in many industrial fields, especially in the field of energy liberation through oxidation of gases, as previous research specialized in improving the combustion processes of gases by adding particles of other gases that contribute to improving the combustion of these compounds in terms of temperatures and speed of flame combustion. The previous study aimed to improve the flame speed by adding different gases to several compounds. In this research paper, propane gas C3H8 is used as the main gas to improve its combustion properties. N2 and H2 gas were added in different proportions, through which a clear effect on the combustion properties can be seen in terms of combustion speed. Flames and exhaust as CO and NOx. As the auxiliary gases were added in this improvement at rates of 20%, 30% and 40%, and then these tests were analyzed, where it was concluded that H2 gas clearly contributed to improving the combustion speed of the flame, as the flame combustion velocity reached 58.3 cm/s by 40%.
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Isvoranu, Dragos D., and Paul G. A. Cizmas. "Numerical Simulation of Combustion and Rotor-Stator Interaction in a Turbine Combustor." International Journal of Rotating Machinery 9, no. 5 (2003): 363–74. http://dx.doi.org/10.1155/s1023621x03000344.

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This article presents the development of a numerical algorithm for the computation of flow and combustion in a turbine combustor. The flow and combustion are modeled by the Reynolds-averaged Navier-Stokes equations coupled with the species-conservation equations. The chemistry model used herein is a two-step, global, finite-rate combustion model for methane and combustion gases. The governing equations are written in the strong conservation form and solved using a fully implicit, finite-difference approximation. The gas dynamics and chemistry equations are fully decoupled. A correction technique has been developed to enforce the conservation of mass fractions. The numerical algorithm developed herein has been used to investigate the flow and combustion in a one-stage turbine combustor.
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Variny, Miroslav, Augustín Varga, Miroslav Rimár, Ján Janošovský, Ján Kizek, Ladislav Lukáč, Gustáv Jablonský, and Otto Mierka. "Advances in Biomass Co-Combustion with Fossil Fuels in the European Context: A Review." Processes 9, no. 1 (January 5, 2021): 100. http://dx.doi.org/10.3390/pr9010100.

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Co-combustion of biomass-based fuels and fossil fuels in power plant boilers, utility boilers, and process furnaces is a widely acknowledged means of efficient heat and power production, offering higher power production than comparable systems with sole biomass combustion. This, in combination with CO2 and other greenhouse gases abatement and low specific cost of system retrofit to co-combustion, counts among the tangible advantages of co-combustion application. Technical and operational issues regarding the accelerated fouling, slagging, and corrosion risk, as well as optimal combustion air distribution impact on produced greenhouse gases emissions and ash properties, belong to intensely researched topics nowadays in parallel with the combustion aggregates design optimization, the advanced feed pretreatment techniques, and the co-combustion life cycle assessment. This review addresses the said topics in a systematic manner, starting with feed availability, its pretreatment, fuel properties and combustor types, followed by operational issues, greenhouse gases, and other harmful emissions trends, as well as ash properties and utilization. The body of relevant literature sources is table-wise classified according to numerous criteria pertaining to individual paper sections, providing a concise and complex insight into the research methods, analyzed systems, and obtained results. Recent advances achieved in individual studies and the discovered synergies between co-combusted fuels types and their shares in blended fuel are summed up and discussed. Actual research challenges and prospects are briefly touched on as well.
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R. Bungay, Henry. "Waste Combustion Gases and Algae." Current Biotechnology 2, no. 1 (February 12, 2013): 59–63. http://dx.doi.org/10.2174/2211550111302010010.

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Takeno, Tadao. "Physics of Combustion of Gases." Combustion and Flame 64, no. 1 (April 1986): 125. http://dx.doi.org/10.1016/0010-2180(86)90103-3.

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Levytska, Olena Hryhoriivna, Yulia Vladimirovna Voytenko, and Anastasiia Oleksiivna Orishechok. "COMPARATIVE ASSESSMENT OF GASEOUS FUEL EMISSION." Bulletin of the National Technical University "KhPI". Series: Chemistry, Chemical Technology and Ecology, no. 1(5) (May 15, 2021): 83–91. http://dx.doi.org/10.20998/2079-0821.2021.01.13.

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The work presents estimated comparative assessment of emissions release in combustion products during work of high–power steam boilers with the use of traditional fuel – natural gas and alternative fuels – blast–furnace and coke–oven gases generated in the process of technological cycle at iron and steel and coke–chemical enterprises. Calculation algorithm is shown and formulas for assessment of carbon content in exhaust gases are defined, conclusions on ecological efficiency of gaseous fuels are given. The purpose of the work was to evaluate the emissions of harmful substances generated during the combustion of natural, blast furnace and coke oven gases, justification of the calculation of carbon content of a given chemical composition and determine the optimal environmental impact of analogues of natural gas. The comparative estimation of pollutant emissions into atmospheric air during combustion of natural, coke oven and blast furnace gases revealed: – high sulfur dioxide emissions from combustion of blast furnace and coke oven gases due to the presence of sulfur compounds in the composition of these gases; – relatively high emissions of nitrogen compounds for natural and coke oven gases and relatively low emissions for blast furnace gas; – сarbon emissions are high for all types of fuels which have been considered, most carbon dioxide gets into the air when burning natural gas, least – when burning blast furnace gas; – significantly higher methane emissions are observed during the combustion of natural and coke oven gases, respectively, smaller – for blast–furnace gas combustion; – coke oven and natural gases are characterized by low mercury emissions. Comparative assessment of the calculated values of hazardous substances emissions in the combustion products in the process of combustion of natural, coke–oven and blast–furnace gases shows that even at lower working heat of combustion values the coke–oven and blast–furnace gases can compete with natural gas. For the first time, a comparative characterization of the emissions of harmful substances in the combustion of natural, coke oven and blast furnace gases is presented, and it is shown that the gases used in coke and metallurgical industries, which are used as analogues of natural, are logical to use, but require the installation of treatment systems. The paper defines a formula for calculating the carbon content in natural gas from the Urengoy–Uzhhorod gas pipeline. The provided calculations and the introduction of simplified formulas serve as an example for the calculation of emission factors and emissions in assessing the level of safety of existing equipment and can be used in the development of permit documents of enterprises that carry out emissions of harmful substances to the environment.
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Dissertations / Theses on the topic "Combustion gases"

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Pugh, Daniel. "Combustion characterisation of compositionally dynamic steelworks gases." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/58006/.

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This thesis investigates the combustion of fuel compositions representative of those produced by the integrated steelmaking process. As organisations strive for improvements in utilisation efficiency with increasingly complex technologies, more detailed understanding is required to accurately simulate combustion of the potentially weak and dilute fuels, and thereby aid design processes. Dynamic fuel properties have been characterised through experimentation, in addition to a comparison of numerically simulated results obtained from chemical kinetics. The parameters identified to investigate fuel behaviour were laminar burning velocity and Markstein Length, and characterised with regard to operational instability in practical combustion systems. The design and construction of a suitable experimental rig is detailed, as required to facilitate the accurate determination of burning velocities by quantifying the outward propagation of spherical flames. A regressive analytical technique was developed based on previous studies, nonlinearly relating propagation to change in stretch rate. The developed solution was benchmarked against analogous studies in literature, and ensured experimental performance was accurate and repeatable for the well documented combustion of methane. Steelworks gases were tested to attain representative burning velocities, with significant attention paid to the change resulting from fluctuation in blast furnace gas H2 fraction. The study characterised the observed sensitivity to change in flame speed and discussed the implications with regard to practical combustion systems. Several methods of reducing the measured fluctuation are subsequently quantified, including change in ambient condition, and relative humidity. Non-monotonic behaviour was observed for the latter effect, with a suggested trade-off between a chemically catalytic influence on intermediate species, and lowering of flame temperature. Consequently this suggested water addition could be an effective mechanism for the reduction of H2 induced flame speed variation for blast furnace gas, and influence other synthesised fuels comprising large quantities of CO, including BOS gas. Additional steelworks gases were blended in different ratios to assess dynamic combustive properties relating to fuel flexibility, and the effectiveness of minimising fluctuation in combustion behaviour.
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Chen, Nini. "Premixed combustion of high calorific value gases." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/13385/.

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Gal-Ed, Reuven. "Pulsating catalytic combustion of gaseous fuels." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/15649.

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Parker, S. J. "Electric spark ignition of gases and dusts." Thesis, City University London, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355585.

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Phuoc, Tran Xuan. "Ignition of polymeric material under radiative and convective exposure." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/18399.

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Anderson, Desmond Carl. "Chemical reactions involved in the desulphurisation of flue gases." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286829.

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Jimenez, Erick G. "Experimental apparatus for characterizing the methane-air combustion process." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/16775.

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Kan, Tie. "Combustion of solid waste in a pulse incinerator." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/12975.

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Pereira, Luís Manuel Cravo. "Capture of pollutants from post-combustion streams with ionic liquids." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/9533.

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Mestrado em Engenharia Química
O aumento da emissão de poluentes nitrogenados, bem como as limitações presentes nos atuais métodos de controlo e o aparecimento de novas legislações e limites máximos de emissão, requerem o desenvolvimento de novos métodos para a redução destes poluentes. Os Líquidos Iónicos (LIs), pelas suas características únicas e baixa pressão de vapor, têm despertado uma grande atenção durante a última década e estão a tornar-se numa nova classe de solventes muito promissores para a captura de poluentes e separação de gases, quer como fase estacionária num processo de membranas quer como absorvente num processo de extração. Não obstante, o desenvolvimento de novos processos de controlo, ou melhoria dos já existentes, requerem o conhecimento do equilíbrio gás-líquido (EGL) que é, até ao momento, ainda insuficiente. Neste trabalho, a solubilidade de gases presentes em processos de combustão como o azoto (N2), o metano (CH4), óxido nitroso (N2O) e dióxido de carbono (CO2) num líquido iónico muito polar foram estudados através de medições do EGL. Os resultados demostram a já reconhecida elevada solubilidade de N2O e CO2 em LIs bem como a elevada seletividade em relação ao ar devido à baixa solubilidade do N2 nos LIs. Foi ainda observado que, contrariamente aos outros gases, para os sistemas N2 + LIs o aumento da temperatura provoca uma aumento da solubilidade do gás. A descrição dos sistemas anteriores por modelos teóricos é fundamental para o projeto de potenciais técnicas de redução de poluentes. Neste sentido, a soft-SAFT EoS, que tem demonstrado ser capaz de descrever sistemas com LIs com enorme sucesso, foi usada para descrever os diferentes sistemas publicados na literatura e medidos aqui em função da temperatura, composição e pressão, permitindo deste modo estender a aplicabilidade do modelo a novos sistemas. Novos parâmetros moleculares, necessários para a descrição de cada componente, são propostos neste trabalho para o N2O e para três dos cinco LIs estudados. Os resultados demonstraram uma boa descrição dos dados experimentais, tanto no que diz respeito ao comportamento inverso observado para o N2 como a baixa dependência do CH4 com a temperatura. Finalmente, a capacidade de extração dos LIs bem como a sua seletividade é comparada com a dos solventes utilizados nos métodos de controlo atuais, como monoetanolamina (MEA) e éter monometílico de trietilenoglicol (TEGMME). Os resultados demonstram uma capacidade de extração dos LIs igual ou superior à dos solventes convencionais, aliada a uma elevada seletividade em relação ao N2O e CO2. Com base neste trabalho, pode-se afirmar que os LIs, devido às suas características únicas e elevada seletividade, apresentam um grande potencial para serem utilizados na captura de poluentes.
The increase in nitrogenated pollutants emissions, along with the limitations of the existing control methods and future stricter legislation, demands the development of new methods to reduce such pollutants. Ionic liquids (ILs), due to their unique characteristics and low vapour pressure, have attracted a large attention during the last decade and are becoming a promising class of solvents to capture pollutants and for gas separation, either as a stationary phase in a membrane process or as an absorption solvent in an extraction process. Nonetheless, the development and/or improvement of new/existing control processes requires the knowledge of gas-liquid equilibrium (GLE) data for ILs + gas systems that are, at the moment, still scarce. The solubilities of some common gases present in combustion processes, such as nitrogen (N2), methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2), were studied through the experimental measurement of the GLE. The results showed a high solubility of N2O and CO2 compared to N2. Furthermore, a surprisingly increase of the solubility of N2 with temperature was observed. The description of previous systems by theoretical models stands also as a vital task for the development of techniques to reduce pollutants. In this sense, the soft-SAFT EoS has proven to be able to describe systems with ILs with a huge success and in a predictive manner. Thus, this model was used to describe the GLE data available in the literature and measured here, for different temperatures and for all concentrations and pressures ranges studied, in order to extend the applicability of the soft-SAFT EoS to describe/predict the gas + ILs systems. The molecular parameters necessary for the description of each compound were determined for the first time in this work for N2O and three of the five ILs involved. The results showed a good description of the experimental data. In addition to that, soft-SAFT EoS successfully predicts the peculiar behaviour observed for N2 as well as the low temperature dependence observed for the CH4 systems. Finally, the extraction capacity and gases selectivity in the ILs was compared with other solvents used in the reduction of pollutants, such as monoethanolamine (MEA) and triethylene glycol monomethyl ether (TEGMME). The results showed a similar or higher extraction capacity of the ILs compared to conventional solvents, combined with a high selectivity towards N2O and CO2. Based on the results showed on this work, it is suggested that ILs due to their unique characteristics and high selectivity are promising agents to capture pollutants.
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Gopalakrishnan, Priya. "Effects of the reacting flowfield on combustion processes in a stagnation point reverse flow combustor." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22682.

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Thesis (Ph. D.)--Aerospace Engineering, Georgia Institute of Technology, 2008.
Committee Chair: Seitzman, Jerry; Committee Member: Gaeta, Richard; Committee Member: Jagoda, Jeff; Committee Member: Neumeier, Yedidia; Committee Member: Yoda, Minami; Committee Member: Zinn, Ben.
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Books on the topic "Combustion gases"

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1903-, Von Elbe Guenther, ed. Combustion, flames, and explosions of gases. 3rd ed. Orlando: Academic Press, 1987.

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E, Baukal Charles, ed. Oxygen-enhanced combustion. Boca Raton, Fla: CRC Press, 1998.

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GjerneshErik. Thermodynamical and transport properties of gases. Roskilde: Risø NationalLaboratory, 1994.

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Żukowski, Witold. Badania procesu spalania paliw gazowych w reaktorze z inertnym złożem fluidalnym. Kraków: Politechnika Krakowska, 2004.

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United States. National Aeronautics and Space Administration., ed. Development of comprehensive numerical schemes for predicting evaporating gas-droplets flow processes of a liquid-fueled combustor: Semi-annual report, June 15, 1988-November 30, 1988. [Washington, DC]: National Aeronautics and Space Administration, 1990.

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Ksandopulo, G. I. Khimii͡a︡ gazofaznogo gorenii͡a︡. Moskva: "Khimii͡a︡", 1987.

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United States. National Aeronautics and Space Administration., ed. Component testing of a ground based gas turbine steam cooled rich-burn primary zone combustor for emissions control of nitrogenous fuels. [Washington, D.C.]: National Aeronautics and Space Administration, 1986.

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R, Smith K., and United States. Environmental Protection Agency. Office of Research and Development, eds. Greenhouse gases from small-scale combustion in developing countries: A pilot study in Manila. Washington, D.C: U.S. Environmental Protection Agency, Office of Research and Development, 1992.

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International Conference on Combustion & Emissions Control (2nd 1995 London, England). The Institute of Energy's Second International Conference on Combustion & Emissions Control: Proceedings of the Institute of Energy conference held in London, UK, on 4-5 December 1995 ; organized by the Institute of Energy ; co-sponsored by Associazione Termotecnica Italiana ... [et al.]. London: The Institute of Energy, 1995.

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D, Roy G., Frolov S. M, Starik A. M, and International Symposium on Combustion and Atmospheric Pollution (2003 : Saint Petersburg, Russia), eds. Combustion and atmospheric pollution. Moscow: Torus Press, 2003.

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Book chapters on the topic "Combustion gases"

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Zeldovich, Ya B., G. I. Barenblatt, V. B. Librovich, and G. M. Makhviladze. "Diffusional Combustion of Gases." In The Mathematical Theory of Combustion and Explosions, 555–83. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2349-5_7.

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Ma, Tingguang. "Combustion Fundamentals." In Ignitability and Explosibility of Gases and Vapors, 37–72. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2665-7_3.

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Clarke, J. F. "Combustion and Compressibility in Gases." In Mathematical Modeling in Combustion and Related Topics, 43–63. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2770-4_4.

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Bebernes, Jerrold, and David Eberly. "Conservation Systems for Reactive Gases." In Mathematical Problems from Combustion Theory, 129–61. New York, NY: Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4612-4546-9_6.

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Kaplan, Harold L., and Gordon E. Hartzell. "Modeling of Toxicological Effects of Fire Gases: I. Incapacitating Effects of Narcotic Fire Gases." In Advances in Combustion Toxicology,Volume I, 182–201. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003418948-12.

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Hanabusa, M., T. Nomura, S. Iguchi, S. Furuno, and T. Inoue. "CARS Thermometry For High Pressure Gases." In Laser Diagnostics and Modeling of Combustion, 111–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-45635-0_14.

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Banaszak, Teresa, Ryszard Miller, and Anita Zieba. "Thermal-Catalytic Incineration of Waste Gases." In Combustion Technologies for a Clean Environment, 633–42. London: CRC Press, 2022. http://dx.doi.org/10.1201/9780367810597-48.

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Chiriac, Rareş Lucian, Anghel Chiru, and Ovidiu Andrei Condrea. "Technical Solutions for the Use of Internal Combustion Engine Combustion Gases." In The 30th SIAR International Congress of Automotive and Transport Engineering, 131–37. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-32564-0_16.

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Liberman, Michael A. "Energy Dissipation in Gases and Liquids." In Introduction to Physics and Chemistry of Combustion, 157–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-78759-4_7.

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Rosier, B., P. Gicquel, D. Henry, and D. Coppale. "Carbon Monoxide Concentrations and Temperature Measurements in Combustion Gases." In Monitoring of Gaseous Pollutants by Tunable Diode Lasers, 246–60. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0989-2_24.

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Conference papers on the topic "Combustion gases"

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Andresen, Peter. "Improving Combustion with Laser Diagnostics." In Modern Spectroscopy of Solids, Liquids, and Gases. Washington, D.C.: Optica Publishing Group, 1995. http://dx.doi.org/10.1364/msslg.1995.ssab1.

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Modern laser spectroscopic methods allow the simultaneous measurement of multiple species concentrations as well as temperature, pressure, and flow velocities. Such methods are applied to technically applied combustion systems like furnaces, internal combustion engines, jet engines, or wind tunnels.
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Tort Oropeza, Alejandro, Rogelio Gonza´lez Oropeza, and Fe´lix Nu´n˜ez Orozco. "A Different Combustion Engine." In ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ices2005-1007.

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This paper investigates the possibilities of an EXTERNAL COMBUSTION ENGINE (ECE) capable of attaining high thermodynamic efficiency and low emission of noxious gases. This ECE consists principally of an air compressor, a combustion chamber or combustor and an expansion or power cylinder. The compressed air is introduced into the combustor; the fuel is injected into the combustor, and a spark plug initiates the combustion. By performing the combustion in a combustor specially designed for that purpose, the combustion can be controlled and the generation of noxious gases can be reduced. The water that cools the jackets of the system is also injected into the combustor; by doing so, the temperature of the combustion products can be maintained at a value sufficiently low so as to minimize the formation of NOx, and at the same time, a significant part of the heat transmitted to the cooling water can be recuperated instead of being dissipated in a radiator. The water, already hot or evaporated, mixes with the combustion gases and expands in the power cylinder, participating in the generation of mechanical power. The efficiency of the cycle is increased.
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Jialu, Yan, Liu Ming, and Yang Yushun. "On the Thermodynamic Properties of Combustion Gases." In ASME 1985 Beijing International Gas Turbine Symposium and Exposition. American Society of Mechanical Engineers, 1985. http://dx.doi.org/10.1115/85-igt-26.

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In this paper, a linear correction method of deviation function and an interpolation method have been proposed to consider the real gas effect of combustion gases and the variety of hydrocarbon fuel. And, the thermodynamic properties of combustion gases in dissociated states are calculated to 4000K on the basis of chemical equilibrium theory. The whole work has resulted in compiling a new combustion gas table.
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Zhang, Kunpeng, Fei Xue, and Weiming Pan. "Theoretical Investigation and Numerical Simulation of Turbulent Combustion in an Industrial Combustor With Combustion Gases Recirculation." In ASME 2004 Power Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/power2004-52025.

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Thermodynamic investigation was conducted to study the role of ejector system in a CGR (Combustion Gases Recirculation) combustor. Physical model was established to evaluate the intensity of CGR and the confirmed relationship between CGR and gas ejection was found. In order to validate the theory analyses, an industry combustor with CGR was modeled. The calculation results accord with the theory analyses. All the results implied that Active Control Combustion (ACC) might be implemented with control of gas ejection.
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Arnau, Francisco, Ricardo Novella, Luis Miguel García-Cuevas, and Fabio Gutiérrez. "Adapting an Internal Combustion Engine to Oxy-Fuel Combustion With In-Situ Oxygen Production." In ASME 2021 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icef2021-67707.

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Abstract In transport applications, reciprocating internal combustion engines still have important advantages in terms of endurance and refueling time and available infrastructure when compared against fuel cell or battery-based powertrains. Although conventional internal combustion engine configurations produce important amounts of greenhouse gases and pollutant emissions, oxyfuel combustion can be used to mitigate to a great extent such emissions, mainly producing NOx-free, CO2 and H2O exhaust gases. However, the oxygen needed for the combustion, which is mixed with flue gases before entering the cylinder, has to be stored in an additional tank, which hinders the adoption of this technology. Fortunately, the latest developments in gas separation membranes are starting to produce extremely-high selectivity and high permeability oxygen-separation membranes. Using the waste heat of the exhaust gases to heat up a mixed ionic-electronic conducting membrane, and feeding it with pressurized air, it is possible to produce all the oxygen needed by the combustion process while keeping the whole system compact. This works presents a design of an oxy-fuel combustion engine with in-situ oxygen production. The numerical simulations show also that this concept keeps a competitive brake specific fuel consumption, while the high concentration of CO2 in the exhaust gases facilitates the introduction of carbon sequestration technologies, leading to potentially carbon-neutral internal combustion engines.
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Green, S. F. "ACOUSTIC TEMPERATURE & VELOCITY MEASUREMENT IN COMBUSTION GASES." In International Heat Transfer Conference 8. Connecticut: Begellhouse, 1986. http://dx.doi.org/10.1615/ihtc8.2670.

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Trabelsi, S., W. Lakhal, E. Sediki, A. Soufiani, Mourad Telmini, Najeh Thabet Mliki, and Ezeddine Sediki. "Infrared Radiative Properties Model for Flowing Combustion Gases." In FUNDAMENTAL AND APPLIED SPECTROSCOPY: Second International Spectroscopy Conference, ISC 2007. AIP, 2007. http://dx.doi.org/10.1063/1.2795422.

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FARROW, R., R. LUCHT, and R. PALMER. "Spectral modeling for CARS diagnostics of combustion gases." In 19th AIAA, Fluid Dynamics, Plasma Dynamics, and Lasers Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-1304.

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Narayanan, G., and S. O. Bade Shrestha. "Landfill Gas: A Fuel for IC Engine Applications." In ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1623.

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Landfill gases and biogases are low Btu gases which were, until recently, underutilized. However interest on the utilization of these gases for energy production has been increasing due to environment concerns and global warming caused by burning fossil fuels, energy security concerns and renewable nature of these gases. The main portion of landfill gas or biogas is comprised of methane and carbon dioxide with some other gases in small proportions. Release of methane directly to the atmosphere causes about 21 times global warming effects than carbon dioxide. Thus landfill gas is flared often, where the energy recovery is not economically viable in practice. Using landfill gas to generate energy encourages more efficient collection reducing emissions into the atmosphere and generates revenues for the operators. However the use of landfill gases for electricity generation is not perceived as an attractive option because of some disadvantages. Thus it becomes necessary to address disadvantages involved by studying the landfill gases in a technological perspective and motivate the utilization of the landfill gas for the future energy needs. This paper discussed landfill gas as a fuel for a spark ignition engine to produce power in an effective way and effects of additions of a small quantity of hydrogen in the fuel mixtures. The effect of the composition changes in landfill gases on the performance of the engine is also presented.
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Sonnenfroh, David M., and Mark G. Allen. "Diode Laser Absorption Spectroscopy of Combustion Gases Near 1.57 Microns." In Laser Applications to Chemical and Environmental Analysis. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/lacea.1996.lwa.5.

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Sensors for rapid, in-situ measurements of hydrocarbon combustion intermediates and products are required for applications ranging from advanced combustor testing to aeropropulsion engine health monitoring. Recent developments in room temperature diode laser technology and sensitive detection strategies now permit development of a new class of combustion sensors for simultaneous measurements of the speciation of the combustion gases as well as gasdynamic performance parameters of interest, including temperature, velocity, and mass flux.1,2 This work focusses on absorption measurements of CO, CO2, H2O, and OH in combustion gases near 1.57 µm. Experiments are conducted in low-pressure, room-temperature absorption cells and combustion gases of a flat-flame burner with hydrogen and methane fuels. The laser source is a New Focus Model 6262 external cavity diode laser, generating over 1 mW of output power across an 80 nm tuning range centered at 1.55 µm. High sensitivity detection is achieved using a dual-beam, Balanced Ratiometric Detector (BRD)1 which cancels common-mode laser amplitude noise in the signal channel (passing through the absorbing medium) and reference channel (passing through a non-absorbing gas or fiber).
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Reports on the topic "Combustion gases"

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Hanson, Ronald, and Craig Bowman. Spectroscopy and Kinetics of Combustion Gases at High Temperatures. Office of Scientific and Technical Information (OSTI), February 2016. http://dx.doi.org/10.2172/1236969.

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Hanson, R. K., and C. T. Bowman. Spectroscopy and kinetics of combustion gases at high temperatures. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/5758465.

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Hanson, R. K., and C. T. Bowman. Spectroscopy and kinetics of combustion gases at high temperatures. Office of Scientific and Technical Information (OSTI), November 1992. http://dx.doi.org/10.2172/7000934.

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Dennis Laudal. JV Task 125-Mercury Measurement in Combustion Flue Gases Short Course. Office of Scientific and Technical Information (OSTI), September 2008. http://dx.doi.org/10.2172/989405.

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Tanoue, Kimitoshi, Shuho Mori, Fumio Shimada, Hiroyuki Hirota, and Keita Kawano. The Effects of Inert Gases on Combustion Properties of Outwardly Propagating DME Flames. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0190.

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Hanson, R. K., and C. T. Bowman. Spectroscopy and kinetics of combustion gases at high temperatures. Annual progress report 1991. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/10133329.

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Morris D. Argyle. Supported, Alkali-Promoted Cobalt Oxide Catalysts for NOx Removal from Coal Combustion Flue Gases. Office of Scientific and Technical Information (OSTI), December 2005. http://dx.doi.org/10.2172/913563.

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Nichols, B. D., C. Mueller, G. A. Necker, J. R. Travis, J. W. Spore, K. L. Lam, P. Royl, and T. L. Wilson. GASFLOW: A Computational Fluid Dynamics Code for Gases, Aerosols, and Combustion, Volume 2: User's Manual. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/1222.

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Müller, C., E. D. Hughes, G. F. Niederauer, H. Wilkening, J. R. Travis, J. W. Spore, P. Royl, and W. Baumann. GASFLOW: A Computational Fluid Dynamics Code for Gases, Aerosols, and Combustion, Volume 3: Assessment Manual. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/1223.

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Bajwa, Abdullah, and Timothy Jacobs. PR-457-17201-R02 Residual Gas Fraction Estimation Based on Measured Engine Parameters. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), February 2019. http://dx.doi.org/10.55274/r0011558.

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Gas exchange processes in two-stroke internal combustion engines, commonly referred to as scavenging, are responsible for removing the exhaust gases in the combustion chamber and preparing the combustible fuel-oxidizer mixture that undergoes combustion and converts the chemical energy of the fuel into mechanical work. Scavenging is a complicated phenomenon because of the simultaneous introduction of fresh gases into the engine cylinder through the intake ports, and the expulsion of combustion products from the previous cycles through the exhaust ports. A non-negligible fraction of the gaseous mixture that is trapped in the cylinder at the conclusion of scavenging is composed of residual gases from the previous cycle. This can cause significant changes to the combustion characteristics of the mixture by changing its composition and temperature, i.e. its thermodynamic state. Thus, it is vital to have accurate knowledge of the thermodynamic state of the post-scavenging mixture to be able to reliably predict and control engine performance, efficiency and emissions. Two tools for estimating the trapped mixture state - a simple scavenging model and empirical correlations - were developed in this study. Unfortunately, it is not practical to directly measure the trapped residual fraction for engines operating in the field. To overcome this handicap, simple scavenging models or correlations, which estimate this fraction based on some economically measurable engine parameters, can be developed. This report summarizes the results of event-II of a multi-event project that aims to develop such mathematical formulations for stationary two-stroke natural gas engines using data from more advanced models and experimentation. In this event, results from a GT-Power based model for an Ajax E-565 single-cylinder engine are used to develop a three-event single zone scavenging model and empirical correlations. Both of these mathematical devices produce accurate estimates of the trapped mixture state. The estimates are compared to GT-Power results. In the next event of the project, these results will be validated using experimental data. Various steps followed in the development of the model have been discussed in this report, and at the end some results and recommendations for the next event of the project have been presented.
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