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A Numerical Study of the Flame Stabilization Mechanism Being Determined by Chemical Reaction Rates Submitted to Heat Transfer Processes

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Published/Copyright: December 16, 2014
Zeitschrift für Physikalische Chemie
From the journal Zeitschrift für Physikalische Chemie Volume 229 Issue 5

Abstract

Large Eddy Simulations of a turbulent lean premixed stratified burner are conducted in order to determine the physical mechanisms that dominate the flame stabilization close to burner walls. The purpose of this work is both to provide insight into the underlying physics as well as to check whether the deficiencies found in previous simulations are related to an inappropriate heat transfer treatment. The simulation utilizes a three-dimensional detailed chemistry database in order to capture the chemical reaction rates based on local mixing and thermal conditions. The study is supplemented by very accurate wall temperature measurements to remove the large uncertainty revealed in the past for this configuration. The results obtained from the simulations are evaluated by means of a qualitative illustration of the different flame stabilizations and comparisons with experimental data.

Keywords: Heat Transfer; Tabulated Chemistry; Stratified Combustion; Flame Stabilization; Phosphor Thermometry

Acknowledgement

We gratefully acknowledge financial support by the German Research Council (DFG) through the projects DR374/13-1 as well as JA544/41-1 and in the framework of the Excellence Initiatives Graduate School of Energy Science and Engineering (GSC 1070) and Graduate School of Computational Engineering (GSC 233) in Darmstadt.

Received: 2014-8-21
Accepted: 2014-11-24
Published Online: 2014-12-16
Published in Print: 2015-5-28

©2014 Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Preface
  3. Congratulations to Henning Bockhorn
  4. On Predicting Char Burnout in Pulverized Coal Combustion
  5. A Numerical Study of the Flame Stabilization Mechanism Being Determined by Chemical Reaction Rates Submitted to Heat Transfer Processes
  6. Experimental and Theoretical Investigation of the Flashback of a Swirling, Bluff-Body Stabilised, Premixed Flame
  7. Ab initio Variational Transition State Theory and Master Equation Study of the Reaction (OH)3SiOCH2 + CH3 ⇌ (OH)3SiOC2H5
  8. Mass Transfer Effects in Stagnation Flows on a Porous Catalyst: Water-Gas-Shift Reaction Over Rh/Al2O3
  9. Kinetic Modelling of the Adsorption and Desorption of NH3 on Fe/BEA Zeolite
  10. An Experimental and Kinetic Modeling Study of Premixed Laminar Flames of Methyl Pentanoate and Methyl Hexanoate
  11. A Standard Burner for High Pressure Laminar Premixed Flames: Detailed Soot Diagnostics
https://doi.org/10.1515/zpch-2014-0589
Keywords for this article
Heat Transfer; Tabulated Chemistry; Stratified Combustion; Flame Stabilization; Phosphor Thermometry

Articles in the same Issue

  1. Frontmatter
  2. Preface
  3. Congratulations to Henning Bockhorn
  4. On Predicting Char Burnout in Pulverized Coal Combustion
  5. A Numerical Study of the Flame Stabilization Mechanism Being Determined by Chemical Reaction Rates Submitted to Heat Transfer Processes
  6. Experimental and Theoretical Investigation of the Flashback of a Swirling, Bluff-Body Stabilised, Premixed Flame
  7. Ab initio Variational Transition State Theory and Master Equation Study of the Reaction (OH)3SiOCH2 + CH3 ⇌ (OH)3SiOC2H5
  8. Mass Transfer Effects in Stagnation Flows on a Porous Catalyst: Water-Gas-Shift Reaction Over Rh/Al2O3
  9. Kinetic Modelling of the Adsorption and Desorption of NH3 on Fe/BEA Zeolite
  10. An Experimental and Kinetic Modeling Study of Premixed Laminar Flames of Methyl Pentanoate and Methyl Hexanoate
  11. A Standard Burner for High Pressure Laminar Premixed Flames: Detailed Soot Diagnostics
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