Relevant bibliographies by topics / Vitiated air

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Vitiated air'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Vitiated air"

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LANGILLE, J. A., Y. DONG, M. G. ANDAC, F. N. EGOLFOPOULOS∗, and T. T. TSOTSIS. "NON-PREMIXED IGNITION BY VITIATED AIR IN COUNTERFLOW CONFIGURATIONS." Combustion Science and Technology 178, no. 4 (April 2006): 635–53. http://dx.doi.org/10.1080/00102200500241230.

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CABRA, R., J. CHEN, R. DIBBLE, A. KARPETIS, and R. BARLOW. "Lifted methane–air jet flames in a vitiated coflow." Combustion and Flame 143, no. 4 (December 2005): 491–506. http://dx.doi.org/10.1016/j.combustflame.2005.08.019.

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Fu, Wei, Fengyu Li, Haitao Zhang, Bolun Yi, Yanju Liu, and Qizhao Lin. "Liftoff behaviors and flame structure of dimethyl ether jet flame in CH4/air vitiated coflow." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 233, no. 8 (May 1, 2019): 1039–46. http://dx.doi.org/10.1177/0957650919846007.

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The objective of this paper is to investigate the flame structure and liftoff behaviors of a dimethyl ether central jet in CH4/air vitiated coflow in a coflow burner. The liftoff behaviors of dimethyl ether jet flames in the air flow were studied firstly. The flame stability of the burner was analyzed by measuring the flow field temperature with thermocouples. By changing the coflow rate and CH4 equivalence ratio, the liftoff behaviors of dimethyl ether jet flames under different vitiated coflow environments were discussed. The jet flame structure was also analyzed qualitatively by high-speed photography.
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Hashimoto, T. "Combustion stability of a vitiated-air heater using coaxial injectors." Energy Conversion and Management 38, no. 10-13 (July 1997): 1083–92. http://dx.doi.org/10.1016/s0196-8904(96)00138-0.

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Cutler, A. D. "Specification of Model Entrance Conditions for Scramjet Testing in Vitiated Air." AIAA Journal 36, no. 7 (July 1998): 1200–1207. http://dx.doi.org/10.2514/2.500.

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Cutler, A. D. "Specification of model entrance conditions for scramjet testing in vitiated air." AIAA Journal 36 (January 1998): 1200–1207. http://dx.doi.org/10.2514/3.13953.

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Lee, Jungmin, Jaejeoung Na, Yunky Hong, and Jeongwoo Kim. "Performance Test of Vitiated Air Heater with High Temperature and High Pressure." Journal of the Korean Society of Propulsion Engineers 22, no. 4 (August 1, 2018): 68–75. http://dx.doi.org/10.6108/kspe.2018.22.4.068.

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Fleck, Julia M., Peter Griebel, Adam M. Steinberg, Christoph M. Arndt, Clemens Naumann, and Manfred Aigner. "Autoignition of hydrogen/nitrogen jets in vitiated air crossflows at different pressures." Proceedings of the Combustion Institute 34, no. 2 (January 2013): 3185–92. http://dx.doi.org/10.1016/j.proci.2012.05.039.

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Mouangue, Ruben, Marcel Obounou, Laurent Gomet, and Arnaud Mura. "Lagrangian Intermittent Modelling of a Turbulent Lifted Methane-Air Jet Flame Stabilized in a Vitiated Air Coflow." Flow, Turbulence and Combustion 92, no. 3 (September 25, 2013): 731–65. http://dx.doi.org/10.1007/s10494-013-9512-6.

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Mitani, Tohru, Tetsuo Hiraiwa, Shigeru Sato, Sadatake Tomioka, Takeshi Kanda, and Kouichiro Tani. "Comparison of Scramjet Engine Performance in Mach 6 Vitiated and Storage-Heated Air." Journal of Propulsion and Power 13, no. 5 (September 1997): 635–42. http://dx.doi.org/10.2514/2.5228.

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Dissertations / Theses on the topic "Vitiated air"

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Wirth, Douglas A. "Soot formation in vitiated-air diffusion flames." Thesis, This resource online, 1989. http://scholar.lib.vt.edu/theses/available/etd-01122010-020138/.

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Bouaniche, Alexandre. "A hybrid stochastic-sectional method for the simulation of soot particle size distributions Vitiated high karlovitz n-decane/air turbulent flames: scaling laws and micro-mixing modeling analysis A hybrid stochastic/fixed-sectional method for solving the population balance equation." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMIR23.

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Les particules de suie (qui sont un type de particules ultrafines) peuvent être produites et émises dans des conditions de combustion riche. Les secteurs comme les transports (routier et aérien), où l'industrie sont des contributeurs significatifs aux émissions de particules. Celles-ci sont habituellement considérées comme des polluants dans la mesure où leur impact négatif sur la santé a été mesuré. Dans certains cas spécifiques comme la production de nanomatériaux, elles peuvent être synthétisées de manière volontaire. Dans les deux cas, une compréhension précise et une capabilité de prédiction de la distribution de tailles de particules (PSD en anglais) sont nécessaires, pour une meilleure conception des chambres de combustion. Dans cette thèse, une méthode innovante est proposée pour la prédiction de l'évolution de la distribution de tailles de particules (PSD). Elle consiste en une approche hybride composée de particules stochastiques représentant une fonction de densité de probabilité (PDF en anglais) et de sections fixes. L'objectif est de résoudre de manière précise le terme source de croissance/oxydation, en traitant le problème de diffusion numérique rencontré par des méthodes sectionnelles classiques. D'autre part, la méthode proposée est moins coûteuse qu'une méthode de Monte Carlo complète. D'abord, le contexte et les motivations de cette thèse sont expliqués. Les concepts et modèles pour les termes sources physiques de suie sont brièvement résumés. Ensuite, l'équation de bilan de population (PBE en anglais) qui pilote l'évolution de la distribution de tailles de particules (PSD), est présentée, ainsi que les différentes classes de méthodes utilisées pour sa résolution. La nouvelle méthode hybride est introduite. Sa précision et son efficacité sont démontrées sur des cas tests analytiques. Enfin, la méthode est appliquée sur une flamme prémélangée d'éthylène
Soot particles (which are one kind of ultra-fine particles) can be produced and emitted in fuel rich combustion conditions. Sectors like road and air transportation, or industry are significant contributors to soot particles emissions. Soot particles are usually considered as a pollutant as their negative impact on health has been assessed. In some specific cases like nanomaterials production, they can be synthesized on purpose. In both cases, accurate understanding and prediction capability of the Particle Size Distribution (PSD) is needed, for a better combustors design. In this thesis, a novel numerical method is proposed to predict the Particle Size Distribution (PSD) evolution. It consists in a hybrid approach featuring stochastic particles representing a Probability Density Function (PDF), and fixed sections. The objective is to solve accurately for the surface growth/oxidation term, mitigating the problem of numerical diffusion encountered in some classical sectional methods. On the other hand, the proposed method is less expensive than a full Monte Carlo method. First, the context and motivation of the thesis are explained. Concepts and models for soot physical source terms are shortly reviewed. Then, the Population Balance Equation (PBE), which drives the evolution of the Particle Size Distribution (PSD), is presented as well as the different classes of numerical methods used for its resolution. Subsequently, the novel hybrid method is introduced. Its accuracy and efficiency are demonstrated on analytical test cases. Finally, the method is applied on a premixed ethylene sooting flame
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Sarisin, Mustafa Nevzat. "Design Of A Connected Pipe Test Facility For Ramjet Applications." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606078/index.pdf.

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ABSTRACT DESIGN OF A CONNECTED PIPE TEST FACILITY FOR RAMJET APPLICATIONS SARISIN, Mustafa Nevzat M.S., Department of Mechanical Engineering Supervisor: Asst. Prof. Dr. Abdullah ULAS Co-Supervisor: Prof. Dr. Kahraman ALBAYRAK April 2005, 164 pages Development of the combustor of a ramjet can be achieved by connected pipe testing. Connected pipe testing is selected for combustor testing because pressure, temperature, Mach number, air mass flow rate can be simulated by this type of testing. Real time trajectory conditions and transition from rocket motor (booster) to ramjet operation can also be tested. The biggest advantage of connected pipe testing is the low operation cost and simplicity. Air mass flow rate requirement is less than the others which requires less air storage space and some components like supersonic nozzle and ejector system is not necessary. In this thesis, design of a connected pipe test facility is implemented. Three main systems are analyzed
air storage system, air heater system and test stand. Design of air storage system includes the design of pressure vessel and pressure &
flow regulation system. Pressure and flow regulation system is needed to obtain the actual flow properties that the combustor is exposed to during missile flight. Alternatives for pressure and air mass flow rate regulation are considered in this study. Air storage system designed in this thesis is 27.8 m3 at 50 bar which allows a test duration of 200 seconds at an average mass flow rate of 3 kg/s. Air heater system is utilized to heat the air to simulate the aerodynamic heating of the inlet. Several different combustion chamber configurations with different flame holding mechanisms are studied. The most efficient configuration is selected for this study. Combustion analysis of the air heater is performed by FLUENT CFD Code. Combustion process and air heater designs are validated using experimental data. Designed air heater system is capable of supplying air at a temperature range of 400-1000 K and mass flow rate range of 1.5-8 kg/s at Mach numbers between 0.1-0.5 and pressure between 2-8 bar. Finally the design of the test stand and ramjet combustor analysis are completed. 3D CAD models of the test stand are generated. Ramjet combustor that will be tested in the test setup is modeled and combustion analysis is performed by FLUENT CFD Code. The ramjet engine cruise altitude is 16 km and cruise Mach number is 3.5. Key-words: Air Breathing Engines, Ramjet, Connected Pipe, Direct Connect, Vitiator.
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Books on the topic "Vitiated air"

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Description of a diving machine suitable for use in rivers (1797): And, A brief supplement to the history and description of a diving machine : together with the explanation of a lantern or lamp which burns in any vitiated air, and in water (1822). London: Historical Diving Society, 2002.

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A, Brabbs Theodore, and United States. National Aeronautics and Space Administration., eds. Hydrogen oxidation mechanisms with applications to (1) the chaperon efficiency of carbon dioxide and (2) vitiated air testing. [Washington, D.C.]: National Aeronautics and Space Administration, 1987.

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Book chapters on the topic "Vitiated air"

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"CHAPTER THREE. "Vitiated Air": The Polluted City and Female Sexuality in Dombey and Son and Bleak House." In Walking the Victorian Streets, 81–112. Ithaca, NY: Cornell University Press, 2019. http://dx.doi.org/10.7591/9781501729232-006.

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Conference papers on the topic "Vitiated air"

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Giusti, Andrea, Jennifer Sidey, Giulio Borghesi, and Epaminondas Mastorakos. "Simulations of kerosene droplet combustion in vitiated air." In 54th AIAA Aerospace Sciences Meeting. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-1681.

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Giacomazzi, Eugenio, Alessio Del Rossi, Antonella Ingenito, Claudio Bruno, and Valerio Parisi. "LES of Supersonic Combustion of H2 / Vitiated Air." In 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-3877.

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Mitani, Tohru, Tetsuo Hiraiwa, Shigeru Sato, Sadatake Tomioka, Takeshi Kanda, Toshihito Saito, Tetsuji Sunami, and Kouichiro Tani. "Scramjet engine testing in Mach 6 vitiated air." In Space Plane and Hypersonic Systems and Technology Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-4555.

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Briones, Alejandro, Balu Sekar, Krishna Kundu, Scott Stouffer, and Joseph Zelina. "Reduced Propane-air and Vitiated-air Chemical Schemes for Gas Turbine Combustion Applications." In 47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2009. http://dx.doi.org/10.2514/6.2009-256.

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HASHIMOTO, T., and M. YOSHIDA. "Development of a vitiated air heater for engine test facilities." In 27th Joint Propulsion Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-2501.

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Galeazzo, Flavio Cesar Cunha, Chockalingam Prathap, Matthias Kern, Peter Habisreuther, Nikolaos Zarzalis, Christian Beck, Werner Krebs, and Bernhard Wegner. "Investigation of a Flame Anchored in Crossflow Stream of Vitiated Air at Elevated Pressures." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69632.

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The objective was to study the effect of equivalence ratio of secondary stage combustible mixture injected into the cross flow stream of vitiated air in a two staged combustion system on the characteristics of the secondary stage combustion zone. The primary cylindrical combustor equipped with low swirl air blast nozzle operating with kerosene generates vitiated air. A methane injector was flush mounted to the inner surface of the secondary combustor. It was used to inject the premixed methane-air mixtures perpendicular into the crossflow of vitiated air. An optical, double shell, secondary combustor with three optical windows on its outer shell was used to image the secondary stage flames. The inner shell was a quadratic fused quartz tube which acts as a thermal barrier and the outer thick quartz windows mounted in the quadratic stainless steel chamber withholds the pressure. Chemiluminescence imaging technique equipped with ICCD camera was used to image the OH* emissions of the secondary stage flame. The vitiated air was generated at 2 bar and 1700 K. The velocity of the vitiated air in the secondary combustor was 57 m/s. A premixed methane air mixture was injected into the cross flow stream of vitiated air. The momentum flux ratio between the jet and the vitiated air was maintained at 1.4. The equivalence ratio of the premixed methane-air mixture was varied from 0.5 to 1.0. As the equivalence ratio of the secondary stage combustible mixture moves towards stoichiometric condition, the secondary stage combustion zone becomes compact and also the distance between the burner and the combustion zone decreases. The turbulent flame stabilized in the secondary combustor exhibited large scale structures and other unsteady phenomena that require time-resolved computational methods. Large eddy simulations (LES) are well suited to the calculation of such complex flows. The flame was embedded in a strong turbulent flow where auto-ignition and quenching are important, which poses a significant challenge for the reaction modeling. The presumed JPDF turbulent reaction model, which has been proven to be a reliable model for these challenging conditions, was successfully coupled with the LES simulation. The qualitative agreement between the results of simulations and measurements was quite satisfactory.
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Cheng, Di, and Jian Gong. "Conceptual Study of Compensation of Vitiated Air Heater by Argon Enrichment." In 21st AIAA International Space Planes and Hypersonics Technologies Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-2366.

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Szasz, Robert Z., Christophe Duwig, and Laszlo Fuchs. "Noise Generated by a Lifted Flame in a Vitiated Co-Flow." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-51186.

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The acoustic field generated by a lifted flame is studied by a hybrid approach. First, Large Eddy Simulations (LES) are used to compute the flow and the acoustic sources. Next, an inhomogeneous wave equation is solved to obtain the resulting acoustic field. The flow computations show good agreement with experimental data. The dominant acoustic sources are found to be located in the ignition region and at the tip of the flame. The acoustic computations revealed the presence of low-frequency waves radiated in the far-field. The shape of the most energetic acoustic modes are identified by POD analysis to be axial modes.
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Singh, Bhupinder, and William E. Lear. "Modeling of Flame Blowout and Emissions in Vitiated Combustion of Biofuels." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-60272.

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The widening gap between the demand and supply of fossil fuels has catalyzed the exploration of alternative sources of energy. Interest in the Power, Water Extraction and Refrigeration (PoWER) cycle, proposed by the University of Florida, as well as the desirability of using biofuels in distributed generation systems, has motivated the exploration of biofuel vitiated combustion. In earlier research efforts on the PoWER engine, lower emissions have been demonstrated by using conventional diesel fuels, achieved through high levels of exhaust gas recirculation (EGR) in semiclosed (SC) mode of operation, inherent in the PoWER cycle. In this work, combustion performance of biofuels has been investigated through modeling of chemical kinetics of ethanol, dimethyl ether (DME) and biodiesel surrogate methyl butanoate (MB), and comparison was made against conventional diesel fuel that was modeled using surrogate fuel n-heptane. The combustion performance was compared over a range of equivalence ratios and EGR levels. The simulations were performed using a constant-pressure continuously stirred tank reactor (CSTR) model developed using the Camera combustion code, implemented in C++. Results have been presented showing comparative trends in emissions, stability and combustion efficiency.
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Taha, A., S. Tiwari, and T. Mohieldin. "Study of supersonic vitiated/clean air ignition/combustion characteristics of hydrogen fuel." In 9th International Space Planes and Hypersonic Systems and Technologies Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1999. http://dx.doi.org/10.2514/6.1999-4919.

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