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The Resource Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames

Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames

Label
Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames
Title
Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames
Creator
Subject
Language
eng
Member of
Cataloging source
MiAaPQ
Literary form
non fiction
Nature of contents
dictionaries
Series statement
Springer Theses Ser
Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames
Label
Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames
Link
http://libproxy.rpi.edu/login?url=https://ebookcentral.proquest.com/lib/rpi/detail.action?docID=4921177
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Copyright
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Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier
Color
multicolored
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Contents
  • Supervisoŕs Foreword -- Preface -- Acknowledgements -- Parts of This Thesis Have Been Published in the Following Articles -- Contents -- Nomenclature -- Latin -- Greek -- Subscripts -- Chapter 1: Introduction -- 1.1 Background -- 1.2 The Composition and Characteristics of Syngas -- 1.2.1 Composition of Syngas -- 1.2.2 Characteristics of Syngas -- 1.2.2.1 Multi-species and Various Composition -- 1.2.2.2 H2 Rich Mixture -- 1.2.2.3 Low Specific Energy -- 1.3 The Laminar Flame Speed of Syngas Flames: A Review -- 1.3.1 The Experimental Determination of Laminar Flame Speed -- 1.3.1.1 Bunsen Flame Method -- 1.3.1.2 Heat Flux Method -- 1.3.1.3 Counterflow Flame Method -- 1.3.1.4 Outwardly-Propagating Spherical Flame Method -- 1.3.2 A Review of the Experimental Studies of the Laminar Flame Speed of H2/CO/Air Flames in the Literature -- 1.3.3 A Review of the Studies on the Mixing Model of the Laminar Flame Speed of Binary Fuel Mixture in the Literature -- 1.4 The Extinction Limit of Laminar Premixed Syngas Flames: A Review -- 1.4.1 The Experimental Determination of the Extinction Limit -- 1.4.2 A Review of the Studies on the Extinction Limit of Laminar Premixed H2/CO/Air Flames -- 1.5 The Flammability Limit of Syngas: A Review -- 1.5.1 The Measurements of the Flammability Limit -- 1.5.1.1 Industrial Standard Methods -- 1.5.1.2 Outwardly-Propagating Spherical Flame Method -- 1.5.1.3 Counterflow Flame Method -- 1.5.2 A Review of the Studies on the Flammability Limit -- 1.5.3 The L̀̀-Ć ́Rule for the Flammability Limit of Multi Component Fuels -- 1.6 A Review of the Studies on the Chemical Kinetic Mechanism of H2/CO/O2 Mixtures -- 1.7 Organization of This Dissertation -- 1.7.1 The Research Problems -- 1.7.2 A Brief Introduction of the Technical Route -- 1.7.3 The Structure of this Dissertation -- References -- Chapter 2: Experimental Approach
  • 2.1 Chapter Introduction -- 2.2 Normal Gravity Counterflow Flame Experimental System -- 2.2.1 The Counterflow Burner -- 2.2.2 Gas Supply and Distribution System -- 2.2.3 PIV System -- 2.3 Measurements of the Laminar Flame Speed -- 2.3.1 The Experimental Determination of the Laminar Flame Speed -- 2.3.2 Uncertainty Analysis -- 2.3.2.1 Uncertainty Analysis of the Laminar Flame Speed Measurements -- 2.3.2.2 The Uncertainty of the Equivalence Ratio -- 2.4 Extinction Limit Measurements under Normal Gravity Condition -- 2.4.1 The Experimental Determination of the Extinction Limit -- 2.4.2 Uncertainty Analysis of the Extinction Measurements -- 2.5 Extinction Limit Measurements under Micro-Gravity Condition -- 2.5.1 Micro-Gravity Counterflow Flame Experimental System -- 2.5.1.1 Validation of the Quasi-Steady-State Condition -- 2.5.2 Determination of the Delay Time of the Flame Response -- 2.6 Measurements of the Flammability Limit -- 2.6.1 Flammability Limit Measuring Method -- 2.6.2 Uncertainty Analysis of the Flammability Limit Measurement -- 2.7 Chapter Summary -- References -- Chapter 3: Numerical Approach -- 3.1 Chapter Introduction -- 3.2 Reactor Model -- 3.2.1 1D Laminar Premixed Free-Propagation Flame Model -- 3.2.1.1 Controlling Equations -- 3.2.1.2 Boundary Conditions -- 3.2.2 Opposed-Jet Flame Model -- 3.2.2.1 Controlling Equation -- 3.2.2.2 Two Point Boundary Condition -- 3.2.2.3 One-Point Continuation Temperature-Controlling Approach -- 3.3 Radiative Heat Loss Model -- 3.4 Mass Diffusion Model -- 3.4.1 Mixture-Averaged Model -- 3.4.2 Multi-Component Model -- 3.4.3 Comparison Between the Two Mass Diffusion Models -- 3.5 Chemical Kinetic Mechanisms -- 3.6 Chapter Summary -- References -- Chapter 4: Laminar Flame Speed of Lean Premixed H2/CO/Air Flames -- 4.1 Chapter Introduction
  • 4.2 Experimental and Numerical Laminar Flame Speed of Lean Premixed H2/CO/Air Flames -- 4.2.1 Experimental Conditions of the Laminar Flame Speed Experiments -- 4.2.2 Linear and Non-linear Extrapolation -- 4.2.3 Comparison Between the Experimental and Numerical Laminar Flame Speed of Lean H2/CO/Air Mixtures -- 4.2.4 Thermal Effect Induced by the Composition Variation -- 4.2.5 Chemical Kinetic Studies of Lean Premixed H2/CO/Air Flames -- 4.2.5.1 Sensitivity Analysis of the Mass Burning Rate to the Elementary Reaction Rate -- 4.2.5.2 Effect of the Fuel Composition Variation on the Overall Reaction Activation Energy -- 4.2.5.3 Effect of the Fuel Composition Variation on the Radical Mole Fraction -- 4.3 Validation of the Previous Laminar Flame Speed Mixing Models -- 4.4 A Semi-empirical Correlation for Laminar Flame Speed Calculation of Lean H2/CO/Air Mixtures Based on Asymptotic Analysis -- 4.4.1 A Reduced Chemistry Mechanism for H2/CO/O2 Reaction -- 4.4.2 Development of the Semi-empirical Correlation for Calculation of H2/CO/Air Flames -- 4.4.3 Validation of the Newly-Proposed Semi-Empirical Correlation -- 4.4.3.1 Validation Under Ambient Pressure and Ambient Unburned Mixture Temperature Condition -- 4.4.3.2 Validation Under Elevated Temperature Condition -- 4.4.3.3 Validation Under Elevated Pressure Condition -- 4.5 Chapter Summary -- References -- Chapter 5: Extinction Limit of Lean Premixed H2/CO/Air Flames -- 5.1 Chapter Introduction -- 5.2 Effect of Fuel Composition Variation on the Extinction Limit of Lean Premixed H2/CO/Air Flames -- 5.2.1 Experimental Conditions in the Normal-Gravity Extinction Experiments -- 5.2.2 Experimental and Numerical Results of the Extinction Limit of Lean Premixed H2/CO/Air Flames -- 5.2.3 Flame Speed and Temperature Under the Near-Limit Condition
  • 5.2.4 Flame Structure and Chemical Kinetics Under the Near-Limit Condition -- 5.3 Extinction Exponent and the Critical Extinction Condition -- 5.4 Extinction Limit of Weakly-Stretched Lean Premixed H2/CO/Air Flames -- 5.4.1 Experimental Conditions in the Micro-Gravity Extinction Experiments -- 5.4.2 Experimental and Numerical Results of the Extinction Equivalence Ratio of Weakly-Stretched Lean Premixed H2/CO/Air Flames -- 5.4.3 Sensitivity Analyses -- 5.4.4 Preferential Diffusion Effect on the Extinction Limit of Weakly-Stretched Lean Premixed H2/CO/Air Flames -- 5.5 Chapter Summary -- References -- Chapter 6: Lower Flammability Limit of H2/CO Mixtures -- 6.1 Chapter Introduction -- 6.2 Experimental Results of the Lower Flammability Limit of Syngas -- 6.2.1 Syngas Composition Tested in this Dissertation -- 6.2.2 Experimental Results of the Flammability Limit Results -- 6.3 Variation of the Lower Flammability Limit of Syngas -- 6.3.1 Temperature Effect on the Lower Flammability Limit of Syngas -- 6.3.2 Dilution Effect on the Lower Flammability Limit of Syngas -- 6.4 Validation of the L-C Rule -- 6.5 Chapter Summary -- Chapter 7: Dilution Effect on the Propagation and Extinction of Lean Premixed Syngas/Air Flames -- 7.1 Chapter Introduction -- 7.2 Experimental and Numerical Cases for the Dilution Studies -- 7.3 Dilution Effect on the Laminar Flame Speeds of Syngas/Air Flames -- 7.4 Dilution Effect on the Extinction Limits of Premixed Syngas/Air Flames -- 7.5 Chapter Summary -- References -- Chapter 8: Conclusion and Recommendation -- 8.1 Conclusion -- 8.2 Outcomes and Innovative Contribution -- 8.3 Recommendation
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1 online resource (142 pages)
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online
Isbn
9789811046155
Media category
computer
Media MARC source
rdamedia
Media type code
c
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remote

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