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Relevant bibliographies by topics / Wall flame quenching

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Academic literature on the topic 'Wall flame quenching'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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Journal articles on the topic "Wall flame quenching"

1

DuttaRoy, Rahul, SR Chakravarthy, and Ashis Kumar Sen. "Experimental investigation of flame propagation in a meso-combustor." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 234, no. 8 (2019): 1131–46. http://dx.doi.org/10.1177/0957650919897755.

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The present work aims to study the quenching of propagating flames in meso-combustors for which dimensions are of the order of quenching distances of hydrocarbon fuels. Combustion of gaseous fuels and subsequent flame propagation in a meso-scale combustor duct of square cross-section is studied experimentally. Premixed mixtures of methane, propane, and ethylene with air are considered. Two different variants of flame propagation states are found to occur in the meso-combustor, viz., one undergoing flame propagation till the combustor entry and quenching at the step and the other undergoing wal

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Zhao, Peipei, Lipo Wang, and Nilanjan Chakraborty. "Analysis of the flame–wall interaction in premixed turbulent combustion." Journal of Fluid Mechanics 848 (June 1, 2018): 193–218. http://dx.doi.org/10.1017/jfm.2018.356.

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The present work focuses on the flame–wall interaction (FWI) based on direct numerical simulations (DNS) of a head-on premixed flame quenching configuration at the statistically stationary state. The effects of FWI on the turbulent flame temperature, wall heat flux, flame dynamics and flow structures were investigated. In turbulent head-on quenching, particularly for high turbulence intensity, the distorted flames generally consist of the head-on flame part and the entrained flame part. The flame properties are jointly influenced by turbulence, heat generation from chemical reactions and heat

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Tao, Mingyuan, Haiwen Ge, Brad VanDerWege, and Peng Zhao. "Fuel wall film effects on premixed flame propagation, quenching and emission." International Journal of Engine Research 21, no. 6 (2018): 1055–66. http://dx.doi.org/10.1177/1468087418799565.

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The formation of fuel wall film is a primary cause for efficiency loss and emissions of unburnt hydrocarbons and particulate matters in direct injection engines, especially during cold start. When a premixed flame propagates toward a wall film of liquid fuel, flame structure and propagation could be fundamentally affected by the vaporization flux and the induced thermal and concentration stratifications. It is, therefore, of both fundamental and practical significance to investigate the consequent effect of a wall film on flame quenching. In this work, the interaction of a laminar premixed fla

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BRUNEAUX, G., T. POINSOT, and J. H. FERZIGER. "Premixed flame–wall interaction in a turbulent channel flow: budget for the flame surface density evolution equation and modelling." Journal of Fluid Mechanics 349 (October 25, 1997): 191–219. http://dx.doi.org/10.1017/s0022112097006769.

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Turbulent premixed flame propagation in the vicinity of a wall is studied using a three-dimensional constant-density simulation of flames propagating in a channel. The influence of the walls is investigated in terms of the flamelet approach, where flamelet speed and flame surface density transport are used to describe the flame. The walls have constant temperature and lead to flamelet quenching for sufficiently small wall–flame distances. Starting from the exact evolution equation for the surface density of propagating interfaces (Trouvé & Poinsot 1994; Candel & Poinsot 1990; Pope 1988

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Lai, Jiawei, Markus Klein, and Nilanjan Chakraborty. "Direct Numerical Simulation of Head-On Quenching of Statistically Planar Turbulent Premixed Methane-Air Flames Using a Detailed Chemical Mechanism." Flow, Turbulence and Combustion 101, no. 4 (2018): 1073–91. http://dx.doi.org/10.1007/s10494-018-9907-5.

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Abstract A three-dimensional compressible Direct Numerical Simulation (DNS) analysis has been carried out for head-on quenching of a statistically planar stoichiometric methane-air flame by an isothermal inert wall. A multi-step chemical mechanism for methane-air combustion is used for the purpose of detailed chemistry DNS. For head-on quenching of stoichiometric methane-air flames, the mass fractions of major reactant species such as methane and oxygen tend to vanish at the wall during flame quenching. The absence of $\text {OH}$ OH at the wall gives rise to accumulation of carbon monoxide du

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Heinrich, Arne, Guido Kuenne, Sebastian Ganter, Christian Hasse, and Johannes Janicka. "Investigation of the Turbulent Near Wall Flame Behavior for a Sidewall Quenching Burner by Means of a Large Eddy Simulation and Tabulated Chemistry." Fluids 3, no. 3 (2018): 65. http://dx.doi.org/10.3390/fluids3030065.

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Combustion will play a major part in fulfilling the world’s energy demand in the next 20 years. Therefore, it is necessary to understand the fundamentals of the flame–wall interaction (FWI), which takes place in internal combustion engines or gas turbines. The FWI can increase heat losses, increase pollutant formations and lowers efficiencies. In this work, a Large Eddy Simulation combined with a tabulated chemistry approach is used to investigate the transient near wall behavior of a turbulent premixed stoichiometric methane flame. This sidewall quenching configuration is based on an experime

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Pfeiffelmann, Björn, and Ali Cemal Benim. "Numerical study of the quenching of a laminar premixed hydrogen flame." MATEC Web of Conferences 240 (2018): 01031. http://dx.doi.org/10.1051/matecconf/201824001031.

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A numerical analysis of the quenching of a laminar, premixed hydrogen-air flame is presented. A global and a detailed reaction mechanism are considered. First, one-dimensional flame propagation is analyzed and the models are validated based on the predicted flame speed. Subsequently, the quenching near a solid wall of a duct is analyzed, within a two-dimensional, steady-state formulation. Finally, propagation of a flame front through a quenching mesh, within an unsteady, two-dimensional analysis is considered. It is observed that the global mechanism does not predict a quenching of the flame b

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Vendra, C. Madhav Rao, J. X. Wen, and V. H. Y. Tam. "Numerical simulation of turbulent flame–wall quenching using a coherent flame model." Journal of Loss Prevention in the Process Industries 26, no. 2 (2013): 363–68. http://dx.doi.org/10.1016/j.jlp.2012.04.001.

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Bioche, K., L. Vervisch, and G. Ribert. "Premixed flame–wall interaction in a narrow channel: impact of wall thermal conductivity and heat losses." Journal of Fluid Mechanics 856 (September 28, 2018): 5–35. http://dx.doi.org/10.1017/jfm.2018.681.

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The flow physics controlling the stabilisation of a methane/air laminar premixed flame in a narrow channel (internal width $\ell _{i}=5~\text{mm}$) is revisited from numerical simulations. Combustion is described with complex chemistry and transport properties, along with a coupled simulation of heat transfer at and within the wall. To conduct a thorough analysis of the flame–wall interaction, the steady flame is obtained after applying a procedure to find the inlet mass flow rate that exactly matches the flame mass burning rate. The response of the premixed flame shape to various operating co

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Hery Soegiharto, Achmad Fauzan, I. N. G. Wardana, Lilis Yuliati, and Mega Nursasongko. "The Role of Liquid Fuels Channel Configuration on the Combustion inside Cylindrical Mesoscale Combustor." Journal of Combustion 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/3679679.

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This research intended to investigate combustion of liquid fuel in 3.5 mm inner diameter quartz glass tube mesocombustor, based on liquid film evaporation by using heat recirculation. The mesocombustor has a copper section for heating and evaporating the liquid fuel. In mesocombustor type A, the fuel was glided through the narrow canal in the copper wall while the air was glided through the axial of combustor. The flame could only be successfully stabilized in high-ratio equivalent ranging from ɸ =1.1 to ɸ=1.6, due to the gap without combustion reaction caused by high air-fuel mixture over the

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Dissertations / Theses on the topic "Wall flame quenching"

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Andrae, Johan. "Wall Related Lean Premixed Combustion Modeled with Complex Chemistry." Doctoral thesis, KTH, Kemiteknik, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3455.

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Increased knowledge into the physics and chemistrycontrolling emissions from flame-surface interactions shouldhelp in the design of combustion engines featuring improvedfuel economy and reduced emissions. The overall aim of this work has been to obtain afundamental understanding of wall-related, premixed combustionusing numerical modeling with detailed chemical kinetics. Thiswork has utilized CHEMKIN®, one of the leading softwarepackages for modeling combustion kinetics. The simple fuels hydrogen and methane as well as the morecomplex fuels propane and gasified biomass have been used inthe mod

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Ranasinghe, Chathura P. "Development of combustion models for RANS and LES applications in SI engines." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12507.

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Prediction of flow and combustion in IC engines remains a challenging task. Traditional Reynolds Averaged Navier Stokes (RANS) methods and emerging Large Eddy Simulation (LES) techniques are being used as reliable mathematical tools for such predictions. However, RANS models have to be further refined to make them more predictive by eliminating or reducing the requirement for application based fine tuning. LES holds a great potential for more accurate predictions in engine related unsteady combustion and associated cycle-tocycle variations. Accordingly, in the present work, new advanced CFD ba

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Hu, Yao-Jen, and 胡耀仁. "The Quenching Effect of Cold Walls on Steady Laminar Premixed H2/O2 Flame." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/86570099330314332652.

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Book chapters on the topic "Wall flame quenching"

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Sano, T. "Wall Quenching of Methane-Air Flame." In Laser Diagnostics and Modeling of Combustion. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-45635-0_40.

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Conference papers on the topic "Wall flame quenching"

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Cleary, David J., and Patrick V. Farrell. "The Effects of Wall Temperature on Flame Structure During Flame Quenching." In International Congress & Exposition. SAE International, 1994. http://dx.doi.org/10.4271/940683.

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Xia, Huang, and Liu Weijie. "A Semi-Analytical Model for Prediction of Wall Quenching Distances of Premixed Flames." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-59809.

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Abstract In order to predict the variation of the wall quenching distance of a premixed flame under different equivalence ratios and incoming flow velocities, a semi-analytical model applied to both lean single-layer flame and rich double-layer flame has been derived based on the conservation of energy in the quenching zone. In this model the flame surface radiation plays an important role. Factors influencing the radiation have been analyzed, respectively. The model indicates that the factors affecting the quenching distance in premixed flame are more complicated than that in single-wall flam

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Cleary, David J., and Patrick V. Farrell. "Single-Surface Flame Quenching Distance Dependence on Wall Temperature, Quenching Geometry, and Turbulence." In International Congress & Exposition. SAE International, 1995. http://dx.doi.org/10.4271/950162.

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Ju, Yiguang. "Theoretical Analysis of Flame Propagation in Meso and Microscale Channels." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47516.

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Extinction and flame propagation in a meso and microscale channels are investigated analytically. Emphasis was paid to the coupling of wall heat loss, wall preheating, external heat loss and chemical reaction. The results showed that, wall thermal properties, channel width and flow velocity have dramatic effects on the flame propagation and lead to multiple flame regimes and extinction limits. With the decrease of channel width, flame reaches its first quenching limit, the so called critical quenching distance. However, with a further decrease of channel width, the results show that there exis

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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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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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Bedick, Clinton R., Nathan T. Weiland, and Peter A. Strakey. "Reaction Zone Characterization in a Gas Turbine Model Validation Combustor." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95991.

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The Enclosed Sydney Swirl Burner (ESSB), a half-scale version of the Sydney Swirl Burner coupled to an optically accessible combustion chamber, was recently constructed at the National Energy Technology Laboratory for the purpose of generating global emissions and model validation data in a configuration relevant to industrial and gas turbine combustion. The ESSB is capable of diffusion flame combustion of CH4/H2/inert fuel mixtures in highly swirling air flow over a bluff body, and can produce a wide variety of flame types and structures for study. Based on stability characteristics and globa

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Huang, Xia, Yong Huang, Fang Wang, and Bin Hu. "Bunsen Flame Blow-Off: Velocity-Matching Method." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45664.

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The effect of the incoming velocity on the anchoring point of a Bunsen flame is studied by theoretical analysis and experiments, since the anchoring point is essential to the flame holding. In order to predict the locations of the anchoring point, the velocity-matching (VM) method, which compares the profile of the flow velocity of the cold flow with that of the flame speed near the exit of a Bunsen burner, is employed together with the consideration of the cold wall quenching. The anchoring point is predicted to be located at x=Cx1u0+Cqdq0u01/2+Cx2dq0y=−Cy1SL01/2u0−1+Cy2SL0u0−2+Cy3SL01/2u0−2+

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Schäfer, Olaf, R. Koch, and S. Wittig. "Flashback in Lean Prevaporized Premixed Combustion: Non-Swirling Turbulent Pipe Flow Study." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0053.

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A fundamental study has been performed on the upstream flame propagation of a turbulent kerosene flame, stabilized in a confined stagnation flow at atmospheric pressure. Besides temperature and equivalence ratio, mixture properties and fluid dynamic parameters have been varied. The flashback phenomenon is discussed in terms of critical mean velocities and additionally based on detailed LDV data at the outlet of the premixing duct. The largest critical velocities uc for flashback are found for the “perfectly” premixed case and equivalence ratios close to stoichiometric, which is in accordance w

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Hoferichter, Vera, Payam Mohammadzadeh Keleshtery, Christoph Hirsch, Thomas Sattelmayer, and Yoshikazu Matsumura. "Influence of Boundary Layer Air Injection on Flashback of Premixed Hydrogen-Air Flames." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56156.

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Alternative fuels like hydrogen are presently discussed as one possibility to reduce carbon dioxide emissions from gas turbines. Premixed lean combustion is a current standard to minimize nitrogen oxide emissions. However, the early mixing of fuel and oxidizer upstream of the combustion chamber opens up the possibility of upstream flame propagation, referred to as flame flashback. Flame flashback in gas turbines has to be prevented as it leads to immediate engine shut down or even structural damage. Due to high burning velocities and low quenching distances, flashback is especially critical in

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