Thermoacoustic Combustion Instability Control

Engineering Applications and Computer Codes

1st Edition - February 13, 2023
Imprint: Academic Press
Author: Dan Zhao
Language: English
Paperback ISBN:
9 7 8 - 0 - 3 2 3 - 8 9 9 1 0 - 9
eBook ISBN:
9 7 8 - 0 - 3 2 3 - 8 9 9 1 8 - 5

Thermoacoustic Combustion Instability Control: Engineering Applications and Computer Codes provides a unique opportunity for researchers, students and engineers to access recent de… Read more

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Thermoacoustic Combustion Instability Control: Engineering Applications and Computer Codes provides a unique opportunity for researchers, students and engineers to access recent developments from technical, theoretical and engineering perspectives. The book is a compendium of the most recent advances in theoretical and computational modeling and the thermoacoustic instability phenomena associated with multi-dimensional computing methods and recent developments in signal-processing techniques. These include, but are not restricted to a real-time observer, proper orthogonal decomposition (POD), dynamic mode decomposition, Galerkin expansion, empirical mode decomposition, the Lattice Boltzmann method, and associated numerical and analytical approaches.

The fundamental physics of thermoacoustic instability occurs in both macro- and micro-scale combustors. Practical methods for alleviating common problems are presented in the book with an analytical approach to arm readers with the tools they need to apply in their own industrial or research setting. Readers will benefit from practicing the worked examples and the training provided on computer coding for combustion technology to achieve useful results and simulations that advance their knowledge and research.

Cover Image
Title page
Table of Contents
Copyright
Preface
Acknowledgments
Chapter 1. Introduction of self-sustained thermoacoustic instability
Abstract
1.1 Introduction of thermoacoustic instability phenomena
1.2 Basic physics of combustion instabilities and review of Rayleigh criterion
1.3 Generation mechanisms of combustion instability
1.4 Stability prediction of longitudinal and circumferential eigenmodes in choked thermoacoustic combustor
1.5 Mean flow effect on entropy generation in a thermoacoustic combustor
1.6 Thermodynamics-acoustics coupling studies on self-excited combustion oscillations maximum growth rate
1.7 Heat flux and acoustic power in a convection-driven T-shaped thermoacoustic combustor
1.8 Effects of time delay, acoustic losses, combustion-flow interaction index on stability behaviors of a Rijke-type combustor
1.9 Identifying chemical kinetics contribution to stability behaviors
1.10 Concluding remarks and future work
References
Chapter 2. Nonlinear dynamics of thermoacoustic combustors
Abstract
2.1 Introduction
2.2 Bifurcation study of a Rijke-type thermoacoustic combustor
2.3 Effects of background noises on nonlinear dynamics of a modeled Rijke-type combustor
2.4 Coherence resonance and stochastic bifurcation behaviors of Rijke-type combustor
2.5 Stochastic properties of a thermoacoustic combustor driven by colored noise
2.6 Characterizing nonlinear dynamics features in swirling thermoacoustic combustor
2.7 Concluding remarks and future work
Nomenclature
References
Chapter 3. Transient growth and non-orthogonality of thermoacoustic eigenmodes
Abstract
3.1 Introduction
3.2 Transient growth of flow disturbances in triggering Rijke-type thermoacoustic combustor
3.3 Effect of choked outlet on transient energy growth analysis
3.4 Effect of entropy waves on transient energy growth in a choked thermoacoustic system
3.5 Transient energy growth analysis of a combustor with distributed mean heat input
3.6 Concluding remarks and future work
Nomenclature
References
Chapter 4. Intrinsic thermoacoustic instability
Abstract
4.1 Introduction
4.2 Entropy-involved energy measure study of intrinsic combustion instability
4.3 Intrinsic thermoacoustic instability of a premixed combustor with a moving flame front
4.4 Acoustics-vorticity-entropy interaction contribution to intrinsic axisymmetric thermoacoustic instability
4.5 Concluding remarks and future work
Appendix A Governing equations of the vorticity-entropy-acoustics coupling
Appendix B Matrix formulation
Nomenclature
References
Chapter 5. Premixed and nonpremixed flame-acoustics dynamic interaction
Abstract
5.1 Introduction
5.2 Hydrogen-fueled diffusion flame in a longitudinal combustor
5.3 Acoustically-excited turbulent premixed flames
5.4 Blow-off characteristics of premixed methane/air flame under acoustic excitation
5.5 Soot suppression from acoustically forcing acetylene diffusion flames
5.6 Concluding remarks and future work
References
Chapter 6. Active control of thermoacoustic instability
Abstract
6.1 Introduction
6.2 Control approaches
6.3 Open-loop control strategies
6.4 Closed-loop control strategies
6.5 Development of transient growth controller
6.6 Practical application and challenges
6.7 Effects on combustion efficiency and emissions
6.8 Case study of feedback control of Rijke-type combustion instability
6.9 Controller performances
6.10 Sliding mode control of thermoacoustic instability
6.11 Concluding remarks and future works
Appendix: x, Ψ and Φ and M involved in the Rijke tube model
References
Chapter 7. Passive control of combustion instabilities
Abstract
7.1 Introduction
7.2 Description of combustion-excited oscillations and acoustic dampers
7.3 “Tunable” acoustic dampers
7.4 Case study 1: Perforated liners
7.5 Case study 2: Electrical heater as a damper
7.6 Discussion and conclusions
Acknowledgments
Appendix A Energy balance analysis
Appendix B Correlation between pump voltage and the cooling flow velocity
Appendix C Acoustic signature of nonreacting combustor with cooling flow implemented
References
Chapter 8. CFD studies on thermoacoustic instabilities
Abstract
8.1 Introduction
8.2 URANS simulations of H2-fueled pulsating combustion oscillations
8.3 NOx emission reduction reaction of NH3–H2 with self-excited combustion oscillations
8.4 RANS studies on premixed CH4/air swirling combustion instability
8.5 LES studies on swirling combustion instabilities
8.6 Concluding remarks
Appendix A Chemical reaction mechanism
Appendix B Experimental setup
Appendix C  
References
Chapter 9. Real-time mode decomposition and proper orthogonal/dynamic mode decomposition analyses of aeroacoustics and ramjet thermoacoustic instability
Abstract
9.1 Introduction
9.2 A Real-time decomposition algorithm for monitoring and controlling combustion system
9.3 Proper orthogonal decomposition studies on Rijke-type thermoacoustic instability
9.4 Dynamic mode decomposition and proper orthogonal decomposition analyses of combustion instability in a solid-fueled Ramjet combustor
9.5 Conclusions and future work
References
Chapter 10. Meso- and micro-scale combustion instability and flame characteristics
Abstract
10.1 Introduction
10.2 Swirling tubular flame–acoustic interaction in a meso-scale premixed combustor
10.3 Combustion instability in an oxy-methane meso-combustor with a swirl tubular flame
10.4 Flame stability and combustion characteristics in a meso-scale combustor
10.5 Micro-scale planar combustor: flame structure, blowout limit and radiant efficiency
10.6 Thermal performances and NOx emission in a modeled premixed CH4/NH3 micro-planar combustor
10.7 Concluding remarks and future works
References
Chapter 11. Ramjet combustion instability and thermodynamic performances
Abstract
11.1 Introduction
11.2 Solid-fueled ramjet combustion instability
11.3 Guide vane effect on reacting flow characteristics in a ramjet combustor
11.4 Swirling effect on thermodynamic performances of a solid-fuel ramjet with paraffin-polyethylene
11.5 Concluding remarks
References
Chapter 12. Swirling combustion: nonlinear dynamics and emissions
Abstract
12.1 Introduction
12.2 Equivalence ratio ϕ effect on nonlinear dynamics
12.3 Effect of excited combustor natural resonance modes on nonlinear dynamics
12.4 Characterizing emissions and thermodynamic properties of a swirling thermoacoustic combustor
12.5 Concluding remarks and future work
References
Chapter 13. Waste thermal energy harvesting from a thermoacoustic system
Abstract
13.1 Introduction
13.2 Energy harvesting from a bifurcating thermoacoustic–piezoelectric system
13.3 Standing-wave thermoacoustic–piezoelectric energy harvester
13.4 Theoretical and experimental studies on a thermoacoustic piezoelectric energy harvester
13.5 Concluding remarks and future work
References
Chapter 14. Standing-wave thermoacoustic engines
Abstract
14.1 Introduction
14.2 RANS/DES/SBES simulations on standing-wave thermoacoustic heat engine
14.3 LES simulations of standing-wave thermoacoustic engine
14.4 Energy conversion in a high-frequency standing-wave thermoacoustic engine
14.5 Concluding remarks and future work
References
Appendix
Index

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Thermoacoustic Combustion Instability Control

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