Gotowe bibliografie tematyczne / Flame flashbacks

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Gotowa bibliografia na temat „Flame flashbacks”

Autor: Grafiati

Data publikacji: 5 października 2024

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Flame flashbacks"

Krupa, R. J., T. F. Culbreth, B. W. Smith, and J. D. Winefordner. "A Flashback-Resistant Burner for Combustion Diagnostics and Analytical Spectrometry." Applied Spectroscopy 40, no. 6 (1986): 729–33. http://dx.doi.org/10.1366/0003702864508232.

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A general utility burner for the production of laminar, homogenous diffusion flames, which is immune to flashbacks, is presented. Because the fuel and oxidant mix on the surface of the burner rather than within the spray chamber, the flames cannot flashback. A wide variety of gas mixtures has been investigated, including oxygen, nitrous oxide, and nitric oxide as the oxidants. Any combination of fuel and oxidant can be safely burned to produced a stable, laminar, and audibly quiet flame. Flame temperatures can be varied over a wide range either by changing the fuel-oxidant ratio or by diluting

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Carlos E. Arrieta, Mario Luna-DelRisco, Arley Cardona, et al. "Numerical Investigation of Operating Conditions that Lead to Flat Flames, Flashback, and Blowout in A Surface-Stabilized Combustion Burner." CFD Letters 15, no. 4 (2023): 106–13. http://dx.doi.org/10.37934/cfdl.15.4.106113.

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Surface-stabilized combustion burners or surface-radiant burners use perforated ceramic plates, ceramic foams, or metal fibers to stabilize a premixed flame. These burners are the most straightforward alternative to have both, the benefits of the reactant preheating technique and a great amount of heat transferred by radiation from the burner to the load. However, in its design, one of the greatest difficulties is to predict the flame stability limits; especially under operating conditions that lead to flashbacks and blowouts. This work presents a computational methodology based on the finite

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Klein, Jean-Michel, Aurelien Genot, Axel Vincent-Randonnier, and Arnaud Mura. "Large-eddy simulation analysis of turbulent flame periodic flashbacks in a backward-facing step (BFS) combustor." Combustion and Flame 280 (October 2025): 114335. https://doi.org/10.1016/j.combustflame.2025.114335.

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Eichler, Christian, Georg Baumgartner, and Thomas Sattelmayer. "Experimental Investigation of Turbulent Boundary Layer Flashback Limits for Premixed Hydrogen-Air Flames Confined in Ducts." Mechanical Engineering 134, no. 12 (2012): 52–53. http://dx.doi.org/10.1115/1.2012-dec-7.

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This article discusses the results of experimental investigation of turbulent boundary layer flashback limits for premixed hydrogen-air flames confined in ducts. A tube burner experiment was set-up to double-check the findings of the channel rig. Unconfined flashback experiments were carried out by stabilizing the flame on top of the pilot burner in free atmosphere. A confined flame configuration was achieved by simply fixing a ceramic ring with a diameter higher by 4 mm on top of the pilot burner. Flashback measurements with unconfined flame holding neatly reproduced literature values for ful

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Endres, Aaron, and Thomas Sattelmayer. "Numerical Investigation of Pressure Influence on the Confined Turbulent Boundary Layer Flashback Process." Fluids 4, no. 3 (2019): 146. http://dx.doi.org/10.3390/fluids4030146.

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Boundary layer flashback from the combustion chamber into the premixing section is a threat associated with the premixed combustion of hydrogen-containing fuels in gas turbines. In this study, the effect of pressure on the confined flashback behaviour of hydrogen-air flames was investigated numerically. This was done by means of large eddy simulations with finite rate chemistry as well as detailed chemical kinetics and diffusion models at pressures between 0 . 5 and 3 . It was found that the flashback propensity increases with increasing pressure. The separation zone size and the turbulent fla

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KURDYUMOV, VADIM N., and AMABLE LIÑÁN. "STRUCTURE OF A FLAME FRONT PROPAGATING AGAINST THE FLOW NEAR A COLD WALL." International Journal of Bifurcation and Chaos 12, no. 11 (2002): 2547–55. http://dx.doi.org/10.1142/s0218127402006023.

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The flashback or propagation of premixed flames against the flow of a reacting mixture, along the low velocity region near a cold wall, is investigated numerically. The analysis, carried out using the constant density approximation for an Arrhenius overall reaction, accounts for the effects of the Lewis number of the limiting reactant. Flame front propagation and flashback are only possible for values of the near wall velocity gradient below a critical value. The flame propagation becomes chaotic for small values of the Lewis number.

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Dias, David M., Pedro R. Resende, and Alexandre M. Afonso. "A Review on Micro-Combustion Flame Dynamics and Micro-Propulsion Systems." Energies 17, no. 6 (2024): 1327. http://dx.doi.org/10.3390/en17061327.

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This work presents a state-of-the-art review of micro-combustion flame dynamics and micro propulsion systems. In the initial section, we focus in on the different challenges of micro-combustion, investigating the typical length and time scales involved in micro-combustion and some critical phenomena such as flammability limits and the quenching diameter.We present an extensive collection of studies on the principal types of micro-flame dynamics, including flashback, blow-off, steady versus non-steady flames, mild combustion, stable flames, flames with repetitive extinction, and ignition and pu

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Jiang, Xudong, Yihao Tang, Zhaohui Liu, and Venkat Raman. "Computational Modeling of Boundary Layer Flashback in a Swirling Stratified Flame Using a LES-Based Non-Adiabatic Tabulated Chemistry Approach." Entropy 23, no. 5 (2021): 567. http://dx.doi.org/10.3390/e23050567.

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When operating under lean fuel–air conditions, flame flashback is an operational safety issue in stationary gas turbines. In particular, with the increased use of hydrogen, the propagation of the flame through the boundary layers into the mixing section becomes feasible. Typically, these mixing regions are not designed to hold a high-temperature flame and can lead to catastrophic failure of the gas turbine. Flame flashback along the boundary layers is a competition between chemical reactions in a turbulent flow, where fuel and air are incompletely mixed, and heat loss to the wall that promotes

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Fooladgar, Ehsan, and C. K. Chan. "Large Eddy Simulation of a Swirl-Stabilized Pilot Combustor from Conventional to Flameless Mode." Journal of Combustion 2016 (2016): 1–16. http://dx.doi.org/10.1155/2016/8261560.

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This paper investigates flame and flow structure of a swirl-stabilized pilot combustor in conventional, high temperature, and flameless modes by means of a partially stirred reactor combustion model to provide a better insight into designing lean premixed combustion devices with preheating system. Finite rate chemistry combustion model with one step tuned mechanism and large eddy simulation is used to numerically simulate six cases in these modes. Results show that moving towards high temperature mode by increasing the preheating level, the combustor is prone to formation of thermalNOxwith hig

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Chang, Liuyong, Boxuan Cui, Chenglin Zhang, Zheng Xu, Guangze Li, and Longfei Chen. "Monitoring and Characterizing the Flame State of a Bluff-Body Stabilized Burner by Electrical Capacitance Tomography." Processes 11, no. 8 (2023): 2403. http://dx.doi.org/10.3390/pr11082403.

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Unstable combustion phenomena such as flame flashback, flame liftoff, extinction and blowout frequently take place during the operation of the bluff-body stabilized burner. Therefore, flame state monitoring is necessary for the safe operation of the bluff-body stabilized burner. In the present study, an electrical capacitance tomography (ECT) system was deployed to detect the permittivity distribution in the premixing channel and further characterize the flame states of stabilization, flashback, liftoff, extinction and blowout. A calderon-based reconstruction method was modified to reconstruct

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Rozprawy doktorskie na temat "Flame flashbacks"

Klein, Jean-Michel. "Étude des instabilités de combustion, mouvements de flamme et flashbacks dans un foyer comprenant un élargissement brusque." Electronic Thesis or Diss., Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2024. http://www.theses.fr/2024ESMA0012.

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La conception des futurs statoréacteurs bénéficierait d'une meilleure compréhension des instabilités de combustion apparaissant dans les écoulements rapides présentant des recirculations : une problématique étudiée à l'ONERA avec le banc MICAEDI au LAboratoire des Ecoulements Réactifs et de leurs Techniques d'Etude (LAERTE) de l'ONERA. Dans ce dispositif, une flamme de prémélange méthane-air s’établit au voisinage d’une marche descendante, dans un environnement présentant des similitudes avec les foyers de statoréacteurs. Pour certains points de fonctionnement, d’importantes oscillations de pr

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Baumgartner, Georg [Verfasser]. "Flame Flashback in Premixed Hydrogen-Air Combustion Systems / Georg Baumgartner." München : Verlag Dr. Hut, 2015. http://d-nb.info/107080018X/34.

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Dam, Bidhan Kumar. "Flashback propensity of gas mixtures." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Eichler, Christian Thomas [Verfasser]. "Flame Flashback in Wall Boundary Layers of Premixed Combustion Systems / Christian Eichler." München : Verlag Dr. Hut, 2011. http://d-nb.info/1018982884/34.

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Lapeyre, Corentin. "Numerical study of flame stability, stabilization and noise in a swirl-stabilized combustor under choked conditions." Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/14493/1/Lapeyre.pdf.

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Air transportation is an essential part of modern business and leisure needs, and the number of passengers carried per year is rapidly increasing worldwide. The International Civil Aviation Organization estimates that this number went from 2.2 billion in 2009 to 3.0 billion in 2013, due in part to rapid growth in emerging countries such as China. Many challenges for aircraft designers arise from this increase in air traffic, such as meeting pollutant and noise emission regulations. The engines play a major part in these emissions, and combustor technology has evolved towards high-pressure Lean

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Pers, Hugo. "Flashback, auto-allumage et quenching des flammes d’hydrogène prémélangées : relever les défis de la décarbonation de la production de chaleur." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2025. http://www.theses.fr/2025TLSES001.

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L'explosion des émissions anthropiques de CO2 depuis la révolution industrielle est aujourd'hui reconnue comme la cause du réchauffement climatique, dont les conséquences dramatiques sont d'ores et déjà visibles. La combustion de carburants fossiles, qui représente près de 90% de la production d'énergie primaire, en est le principal moteur. Bien que l'interrogation des besoins soit cruciale, le développement de méthodes de production d'énergie décarbonées semble inévitable. Dans ce contexte, l'hydrogène vert peut s'avérer un vecteur énergétique prometteur, permettant de stocker l'énergie issue

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Hassanaly, Malik. "Large eddy simulations (LES) of boundary layer flashback in wall-bounded flows." Thesis, 2014. http://hdl.handle.net/2152/28248.

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In the design of high-hydrogen content gas turbines for power generation, flashback of the turbulent flame by propagation through the low velocity boundary layers in the premixing region is an operationally dangerous event. The high reactivity of hydrogen combined with enhanced flammability lim- its (compared to natural gas) promotes flame propagation along low-speed boundary layers adjoining the combustion walls. This work focuses on the simulation of boundary layer flashback using large-eddy simulations (LES). A canonical channel configuration is studied to assess the capabilities of LES and

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Części książek na temat "Flame flashbacks"

Sun, Mingbo, Hongbo Wang, Zun Cai, and Jiajian Zhu. "Flame Flashback in Supersonic Flows." In Unsteady Supersonic Combustion. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3595-6_5.

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Zhang, Jingyu, Shaohua Zhu, Xianggeng Wei, and Guoqiang He. "Combustion Characteristic in Strut-Cavity Scramjet with a Plasma-Assisted Rocket at Mach 2 Flight Condition." In Advances in Transdisciplinary Engineering. IOS Press, 2025. https://doi.org/10.3233/atde250324.

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This study investigates ignition enhancement strategies for a dual strut/cavity scramjet combustor under simulated Mach 2 flight conditions. To address the low-Mach-number combustion instability challenge, we employ a methane/oxygen rocket’s tail flame as a pilot flame combined with plasma jet activation. Experimental results reveal two critical findings: (1) Engine ignition failed without rocket assistance, confirming the necessity of external ignition support at low Mach numbers; (2) Flame flashback occurred in the secondary cavity when local equivalence ratios reached 0.5, correlating with

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"Flame Stabilization, Flashback, Flameholding, and Blowoff." In Unsteady Combustor Physics, 2nd ed. Cambridge University Press, 2021. http://dx.doi.org/10.1017/9781108889001.011.

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"Flame Flashback for Low Reynolds Number Flows." In Dynamics of Reactive Systems Part I: Flames; Part II: Heterogeneous Combustion and Applications. American Institute of Aeronautics and Astronautics, 1988. http://dx.doi.org/10.2514/5.9781600865879.0367.0383.

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Benim, Ali Cemal, and Khawar J. Syed. "Flashback Due to Flame Propagation in Boundary Layers." In Flashback Mechanisms in Lean Premixed Gas Turbine Combustion. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-12-800755-6.00008-8.

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Benim, Ali Cemal, and Khawar J. Syed. "Flashback Due to Turbulent Flame Propagation in the Core Flow." In Flashback Mechanisms in Lean Premixed Gas Turbine Combustion. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-12-800755-6.00007-6.

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Streszczenia konferencji na temat "Flame flashbacks"

Eichler, Christian, and Thomas Sattelmayer. "Experiments on Flame Flashback in a Quasi-2D Turbulent Wall Boundary Layer for Premixed Methane-Hydrogen-Air Mixtures." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-23401.

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Premixed combustion of hydrogen-rich mixtures involves the risk of flame flashback through wall boundary layers. For laminar flow conditions, the flashback mechanism is well understood and is usually correlated by a critical velocity gradient at the wall. Turbulent transport inside the boundary layer considerably increases the flashback propensity. Only tube burner setups have been investigated in the past and thus turbulent flashback limits were only derived for a fully-developed Blasius wall friction profile. For turbulent flows, details of the flame propagation in proximity to the wall rema

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Verma, Ishan, Rakesh Yadav, Naseem Ansari, Stefano Orsino, Shaoping Li, and Pravin Nakod. "Modeling of Flashback With Different Blends of CH4 and H2 by Using Finite Rate Chemistry With Large Eddy Simulation." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-82601.

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Abstract Due to its clean combustion characteristics, hydrogen fuel is gaining attention in power generation. New designs of engine systems and components are being explored to allow blending with the increasing amount of hydrogen in natural gas. Adding H2 increases the probability of flashback and often is one of the main constraints in using high H2 blends in premixed combustors. There are several mechanisms of flashback like boundary layer flashback, combustion induced vortex break down, turbulence in the flow, fluctuations in equivalence ratio, etc. Semi-empirical models, based on non-dime

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Sattelmayer, Thomas, Christoph Mayer, and Janine Sangl. "Interaction of Flame Flashback Mechanisms in Premixed Hydrogen-Air Swirl Flames." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25553.

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An experimental study is presented on the interaction of flashback originating from flame propagation in the boundary layer (1), from combustion driven vortex breakdown (2) and from low bulk flow velocity (3). In the investigations, an aerodynamically stabilized swirl burner operated with hydrogen-air mixtures at ambient pressure and with air preheat was employed, which previously had been optimized regarding its aerodynamics and its flashback limit. The focus of the present paper is the detailed characterization of the observed flashback phenomena with simultaneous high speed PIV/Mie imaging,

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Hoferichter, Vera, Christoph Hirsch, and Thomas Sattelmayer. "Prediction of Boundary Layer Flashback Limits of Laminar Premixed Jet Flames." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75546.

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Preventing flame flashback into the premixing section is one of the major challenges in premixed combustion systems. For jet flames, the flame typically propagates upstream inside the low velocity region close to the burner wall, referred to as boundary layer flashback. The physical mechanism of boundary layer flashback of laminar flames is mainly influenced by flame-wall interaction and flame quenching. Flashback is initiated if the burning velocity at some wall distance is higher than the local flow velocity. Since the burning velocity drops towards the wall due to heat losses, the wall dist

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Ebi, Dominik, and Noel T. Clemens. "Flow-flame interaction in turbulent boundary layer flashback of swirl flames." In Ninth International Symposium on Turbulence and Shear Flow Phenomena. Begellhouse, 2015. http://dx.doi.org/10.1615/tsfp9.360.

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Hoferichter, Vera, and Thomas Sattelmayer. "Boundary Layer Flashback in Premixed Hydrogen-Air Flames With Acoustic Excitation." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63080.

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Lean premixed combustion is prevailing in gas turbines to minimize nitrogen oxide emissions. However, this technology bears the risk of flame flashback and thermoacoustic instabilities. Thermoacoustic instabilities induce velocity oscillations at the burner exit which, in turn, can trigger flame flashback. This article presents an experimental study at ambient conditions on the effect of longitudinal acoustic excitation on flashback in the boundary layer of a channel burner. The acoustic excitation simulates the effect of thermoacoustic instabilities. Flashback limits are determined for differ

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Eichler, Christian, Georg Baumgartner, and Thomas Sattelmayer. "Experimental Investigation of Turbulent Boundary Layer Flashback Limits for Premixed Hydrogen-Air Flames Confined in Ducts." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45362.

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The design of flashback-resistant premixed burners for hydrogen-rich fuels is strongly dependent on reliable turbulent boundary layer flashback limits, since this process can be the dominant failure type for mixtures with high burning velocities. So far, the flashback data published in literature is based on tube burner experiments with unconfined flames. However, this flame configuration may not be representative for the most critical design case, which is a flame being already present inside the duct geometry. In order to shed light on this potential misconception, boundary layer flashback l

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Hoferichter, Vera, Christoph Hirsch, and Thomas Sattelmayer. "Prediction of Confined Flame Flashback Limits Using Boundary Layer Separation Theory." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56155.

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Premixed combustion is a common technology applied in modern gas turbine combustors to minimize nitrogen oxide emissions. However, early mixing of fuel and oxidizer opens up the possibility of flame flashback into the premixing section upstream of the combustion chamber. Especially for highly reactive fuels boundary layer flashback is a serious challenge. For high preheating and burner surface temperatures, boundary layer flashback limits for burner stabilized flames converge to those of so-called confined flames, where the flame is stabilized inside the burner duct. Hence, the prediction of c

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Choi, Minjun, Inyeong Gu, Youngjun Shin, et al. "Development of Near-Wall Treatment to Improve Flame Flashback Prediction for Hydrogen Flames." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-101199.

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Abstract Numerical investigations on prediction of flashback of a lean premixed hydrogen flame in an industrial gas turbine combustor were conducted. Three combustion models were tested for prediction capabilities: (i) the flamelet-generated manifold-finite rate (FGM-FR) model, (ii) the flamelet-generated manifold-turbulent flame speed (FGM-ST) model, and (iii) the eddy dissipation concept (EDC) model. Without an additional wall damping model, the three models are unable to predict the flame flashback limit correctly. A wall damping model was applied to modify the reaction rate near the wall.

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Noble, David R., Qingguo Zhang, Akbar Shareef, Jeremiah Tootle, Andrew Meyers, and Tim Lieuwen. "Syngas Mixture Composition Effects Upon Flashback and Blowout." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90470.

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This paper reports experimental data on flashback and lean blowout characteristics of H2/CO/CH4 mixtures. Data were obtained over a range of fuel compositions at fixed approach or burned flow velocity, reactant temperature, and combustor pressure at several conditions up to 4.4 atm and 470 K inlet reactants temperature. Consistent with prior studies, these results indicate that the percentage of H2 in the fuel dominates the mixture blowout characteristics. These blowout characteristics can be captured with classical Damko¨hler number scalings to predict blowoff equivalence ratios to within 10%

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Raporty organizacyjne na temat "Flame flashbacks"

Clemens, Noel. Large Eddy Simulation Modeling of Flashback and Flame Stabilization in Hydrogen-Rich Gas Turbines Using a Hierarchical Validation Approach. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1253136.

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Clemens, Noel, and Venkat Raman. Predictive LES Modeling and Validation of High-Pressure Turbulent Flames and Flashback in Hydrogen-enriched Gas Turbines. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1506058.

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Kalantari, Alireza, Elliot Sullivan-Lewis, and Vincent McDonell. Development of Criteria for Flashback Propensity in Jet Flames for High Hydrogen Content and Natural Gas Type Fuels. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1357931.

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Ihme, Matthias, and James Driscoll. Development and Experimental Validation of Large Eddy Simulation Techniques for the Prediction of Combustion-Dynamic Process in Syngas Combustion: Characterization of Autoignition, Flashback, and Flame-Liftoff at Gas-Turbine Relevant Operating Conditions. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1337558.

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