Stabilization and Dynamic of Premixed Swirling Flames

Stabilization and Dynamic of Premixed Swirling Flames
Author: Paul Palies
Publsiher: Academic Press
Total Pages: 400
Release: 2020-07-03
ISBN 10: 0128199970
ISBN 13: 9780128199978
Language: EN, FR, DE, ES & NL

Stabilization and Dynamic of Premixed Swirling Flames Book Review:

Stabilization and Dynamic of Premixed Swirling Flames: Prevaporized, Stratified, Partially, and Fully Premixed Regimes focuses on swirling flames in various premixed modes (stratified, partially, fully, prevaporized) for the combustor, and development and design of current and future swirl-stabilized combustion systems. This includes predicting capabilities, modeling of turbulent combustion, liquid fuel modeling, and a complete overview of stabilization of these flames in aeroengines. The book also discusses the effects of the operating envelope on upstream fresh gases and the subsequent impact of flame speed, combustion, and mixing, the theoretical framework for flame stabilization, and fully lean premixed injector design. Specific attention is paid to ground gas turbine applications, and a comprehensive review of stabilization mechanisms for premixed, partially-premixed, and stratified premixed flames. The last chapter covers the design of a fully premixed injector for future jet engine applications. Features a complete view of the challenges at the intersection of swirling flame combustors, their requirements, and the physics of fluids at work Addresses the challenges of turbulent combustion modeling with numerical simulations Includes the presentation of the very latest numerical results and analyses of flashback, lean blowout, and combustion instabilities Covers the design of a fully premixed injector for future jet engine applications

Combustion Dynamics and Fluid Mechanics in Acoustically Perturbed Non premixed Swirl stabilized Flames

Combustion Dynamics and Fluid Mechanics in Acoustically Perturbed Non premixed Swirl stabilized Flames
Author: Uyi O. Idahosa
Publsiher: Unknown
Total Pages: 161
Release: 2010
ISBN 10: 1928374650XXX
ISBN 13: OCLC:665146502
Language: EN, FR, DE, ES & NL

Combustion Dynamics and Fluid Mechanics in Acoustically Perturbed Non premixed Swirl stabilized Flames Book Review:

The prevalence of gas turbines operating in primarily lean premixed modes is predicated on the need for lower emissions and increased efficiency. An enhancement in the mixing process through the introduction of swirl in the combustion reactants is also necessary for flame stabilization. The resulting lean swirling flames are often characterized by a susceptibility to feedback between velocity, pressure and heat release perturbations with a potential for unstable self-amplifying dynamics. The existing literature on combustion dynamics is predominantly dedicated to premixed flame configurations motivated by power generation and propulsive gas turbine applications. In the present research effort, an investigation into the response of atmospheric, non-premixed swirling flames to acoustic perturbations at various frequencies (f[subscript p] = 0-315Hz) and swirl intensities (S=0.09 and S=0.34) is carried out. The primary objective of the research effort is to broaden the scope of fundamental understanding in flame dynamics in the literature to include non-premixed swirling flames. Applications of the research effort include control strategies to mitigate the occurrence of combustion instabilities in future power generation gas turbines. Flame heat release is quantitatively measured using a photomultiplier with a 430nm bandpass filter for observing CH* chemiluminescence which is simultaneously imaged with a phase-locked CCD camera. Acoustic perturbations are generated with a loudspeaker at the base of an atmospheric co-flow burner with resulting velocity oscillation amplitudes, [vertical line]u'/U[subscript avg][vertical line] in the 0.03-0.30 range. The dependence of flame dynamics on the relative richness of the flame is investigated by studying various constant fuel flow rate flame configurations. The effect of varying fuel flow rates on the flame response is also examined using with dynamic time-dependent fuel supply rates over the data acquisition period. The Particle Image Velocimetry (PIV) method is used to study the isothermal flow field associated with acoustic pulsing. The acoustic impedance, wavelet analysis, Rayleigh criteria and phase conditioning methods are used to identify fundamental mechanisms common to highly responsive flame configurations.

Swirling Flows and Flames

Swirling Flows and Flames
Author: Toufik Boushaki
Publsiher: BoD – Books on Demand
Total Pages: 118
Release: 2019-06-26
ISBN 10: 1838807438
ISBN 13: 9781838807436
Language: EN, FR, DE, ES & NL

Swirling Flows and Flames Book Review:

Swirl flows are used in a wide range of industrial applications. In non-reacting cases, examples of applications include vortex amplifiers and reactors, heat exchangers, jet pumps, and cyclone separators. In reacting cases, swirlers are widely used in combustion systems, such as gas turbines, industrial furnaces, boilers, gasoline and diesel engines, and many other practical heating devices. Effects of using swirl on flow and combustion are significant and varied, and concern, for example, aerodynamics, mixing, flame stability, intensity of combustion, and pollutant emissions. The purpose of this book is to present recent research efforts to understand and characterize swirling flows of different types and in different applications. These include gaseous, liquid, and solid fuels in order to enhance combustion systems and their energy efficiency. Swirl flows are very complex and the studies proposed in this project are based on different means, including theoretical calculations, numerical modeling, and experimental measurements.

Oxyfuel Combustion for Clean Energy Applications

Oxyfuel Combustion for Clean Energy Applications
Author: Medhat A. Nemitallah,Mohamed A. Habib,Hassan M. Badr
Publsiher: Springer
Total Pages: 368
Release: 2019-02-11
ISBN 10: 3030105881
ISBN 13: 9783030105884
Language: EN, FR, DE, ES & NL

Oxyfuel Combustion for Clean Energy Applications Book Review:

This book aims to be the reference book in the area of oxyfuel combustion, covering the fundamentals, design considerations and current challenges in the field. Its first part provides an overview of the greenhouse gas emission problem and the current carbon capture and sequestration technologies. The second part introduces oxy-fuel combustion technologies with emphasis on system efficiency, combustion and emission characteristics, applications and related challenges. The third part focuses on the recent developments in ion transport membranes and their performance in both oxygen separation units and oxygen transport reactors (OTRs). The fourth part presents novel approaches for clean combustion in gas turbines and boilers. Computational modelling and optimization of combustion in gas turbine combustors and boiler furnaces are presented in the fifth part with some numerical results and detailed analyses.

Unsteady Combustor Physics

Unsteady Combustor Physics
Author: Tim C. Lieuwen
Publsiher: Cambridge University Press
Total Pages: 520
Release: 2021-09-30
ISBN 10: 1108841317
ISBN 13: 9781108841313
Language: EN, FR, DE, ES & NL

Unsteady Combustor Physics Book Review:

Explore a unified treatment of the dynamics of combustor systems, including acoustics, fluid mechanics, and combustion in a single rigorous text. This updated new edition features an expansion of data and experimental material, updates the coverage of flow stability, and enhanced treatment of flame dynamics. Addresses system dynamics of clean energy and propulsion systems used in low emissions systems. Synthesizing the fields of fluid mechanics and combustion into a coherent understanding of the intrinsically unsteady processes in combustors. This is a perfect reference for engineers and researchers in fluid mechanics, combustion, and clean energy.

Swirl stabilized Lean premixed Flame Combustion Dynamics An Experimental Investigation of Flame Stabilization Flame Dynamics and Combustion Instability Control Strategies

Swirl stabilized Lean premixed Flame Combustion Dynamics  An Experimental Investigation of Flame Stabilization  Flame Dynamics and Combustion Instability Control Strategies
Author: Rajavasanth Rajasegar
Publsiher: Unknown
Total Pages: 135
Release: 2018
ISBN 10: 1928374650XXX
ISBN 13: OCLC:1084742595
Language: EN, FR, DE, ES & NL

Swirl stabilized Lean premixed Flame Combustion Dynamics An Experimental Investigation of Flame Stabilization Flame Dynamics and Combustion Instability Control Strategies Book Review:

Turbulence and Interactions

Turbulence and Interactions
Author: Michel O. Deville,Vincent Couaillier,Jean-Luc Estivalezes,Vincent Gleize,Thiên HiêpLê,Marc Terracol,Stéphane Vincent
Publsiher: Springer
Total Pages: 280
Release: 2017-09-11
ISBN 10: 3319603876
ISBN 13: 9783319603872
Language: EN, FR, DE, ES & NL

Turbulence and Interactions Book Review:

This book presents a snapshot of the state-of-art in the field of turbulence modeling, with an emphasis on numerical methods. Topics include direct numerical simulations, large eddy simulations, compressible turbulence, coherent structures, two-phase flow simulation and many more. It includes both theoretical contributions and experimental works, as well as chapters derived from keynote lectures, presented at the fourth Turbulence and Interactions Conference (TI 2015), which was held on June 11-14 in Cargèse, Corsica, France. This multifaceted collection, which reflects the conference ́s emphasis on the interplay of theory, experiments and computing in the process of understanding and predicting the physics of complex flows and solving related engineering problems, offers a timely guide for students, researchers and professionals in the field of applied computational fluid dynamics, turbulence modeling and related areas.

Combustion for Power Generation and Transportation

Combustion for Power Generation and Transportation
Author: Avinash Kumar Agarwal,Santanu De,Ashok Pandey,Akhilendra Pratap Singh
Publsiher: Springer
Total Pages: 451
Release: 2017-01-20
ISBN 10: 981103785X
ISBN 13: 9789811037856
Language: EN, FR, DE, ES & NL

Combustion for Power Generation and Transportation Book Review:

This research monograph presents both fundamental science and applied innovations on several key and emerging technologies involving fossil and alternate fuel utilization in power and transport sectors from renowned experts in the field. Some of the topics covered include: autoignition in laminar and turbulent nonpremixed flames; Langevin simulation of turbulent combustion; lean blowout (LBO) prediction through symbolic time series analysis; lasers and optical diagnostics for next generation IC engine development; exergy destruction study on small DI diesel engine; and gasoline direct injection. The book includes a chapter on carbon sequestration and optimization of enhanced oil and gas recovery. The contents of this book will be useful to researchers and professionals working on all aspects on combustion.

Coarse Grained Simulation and Turbulent Mixing

Coarse Grained Simulation and Turbulent Mixing
Author: Fernando F. Grinstein
Publsiher: Cambridge University Press
Total Pages: 516
Release: 2016-05-31
ISBN 10: 1107137047
ISBN 13: 9781107137042
Language: EN, FR, DE, ES & NL

Coarse Grained Simulation and Turbulent Mixing Book Review:

Reviews our current understanding of the subject. For graduate students and researchers in computational fluid dynamics and turbulence.

Advances in Energy and Combustion

Advances in Energy and Combustion
Author: Ashwani K. Gupta
Publsiher: Springer Nature
Total Pages: 135
Release: 2021
ISBN 10: 9811626480
ISBN 13: 9789811626487
Language: EN, FR, DE, ES & NL

Advances in Energy and Combustion Book Review:

A Gallery of Combustion and Fire

A Gallery of Combustion and Fire
Author: Charles E. Baukal, Jr.
Publsiher: Cambridge University Press
Total Pages: 170
Release: 2020-09-03
ISBN 10: 1107154979
ISBN 13: 9781107154971
Language: EN, FR, DE, ES & NL

A Gallery of Combustion and Fire Book Review:

The first book to present a full-color visual panorama of combustion images along with explanatory and tutorial overviews.

Unsteady Supersonic Combustion

Unsteady Supersonic Combustion
Author: Mingbo Sun,Hongbo Wang,Zun Cai,Jiajian Zhu
Publsiher: Springer Nature
Total Pages: 345
Release: 2020-04-14
ISBN 10: 9811535957
ISBN 13: 9789811535956
Language: EN, FR, DE, ES & NL

Unsteady Supersonic Combustion Book Review:

This book describes the unsteady phenomena needed to understand supersonic combustion. Following an initial chapter that introduces readers to the basic concepts in and classical studies on unsteady supersonic combustion, the book highlights recent studies on unsteady phenomena, which offer insights on e.g. interactions between acoustic waves and flames, flow dominating instability, ignition instability, flame flashback, and near-blowout-limit combustion. In turn, the book discusses in detail the fundamental mechanisms of these phenomena, and puts forward practical suggestions for future scramjet design.

High Performance Computing in Science and Engineering 11

High Performance Computing in Science and Engineering  11
Author: Wolfgang E. Nagel,Dietmar B. Kröner,Michael M. Resch
Publsiher: Springer Science & Business Media
Total Pages: 649
Release: 2012-01-05
ISBN 10: 3642238696
ISBN 13: 9783642238697
Language: EN, FR, DE, ES & NL

High Performance Computing in Science and Engineering 11 Book Review:

This book presents the state-of-the-art in simulation on supercomputers. Leading researchers present results achieved on systems of the High Performance Computing Center Stuttgart (HLRS) for the year 2011. The reports cover all fields of computational science and engineering, ranging from CFD to computational physics and chemistry, to computer science, with a special emphasis on industrially relevant applications. Presenting results for both vector systems and microprocessor-based systems, the book allows readers to compare the performance levels and usability of various architectures. As HLRS operates not only a large cluster system but also one of the largest NEC vector systems in the world, this book also offers excellent insights into the potential of vector systems. The book covers the main methods used in high-performance computing. Its outstanding results in achieving highest performance for production codes are of particular interest for scientists and engineers alike. The book comes with a wealth of color illustrations and tables of results.

Combustion Dynamics of Swirl stabilized Lean Premixed Flames in an Acoustically driven Environment

Combustion Dynamics of Swirl stabilized Lean Premixed Flames in an Acoustically driven Environment
Author: Yun Huang
Publsiher: Unknown
Total Pages: 252
Release: 2008
ISBN 10: 1928374650XXX
ISBN 13: OCLC:438853857
Language: EN, FR, DE, ES & NL

Combustion Dynamics of Swirl stabilized Lean Premixed Flames in an Acoustically driven Environment Book Review:

In a similar fashion, increasing the pressure was found to alter the flame shape and flame extent, but the thermo-acoustic coupling and induced large scale structure persisted to 0.34MPa, the highest pressure tested.

Lean Combustion

Lean Combustion
Author: Derek Dunn-Rankin,Peter Therkelsen
Publsiher: Academic Press
Total Pages: 280
Release: 2016-07-01
ISBN 10: 0128005777
ISBN 13: 9780128005774
Language: EN, FR, DE, ES & NL

Lean Combustion Book Review:

Lean Combustion: Technology and Control, Second Edition outlines and explains the latest advances in lean combustion technology and systems. Combustion under sufficiently fuel-lean conditions can have the desirable attributes of high efficiency and low emissions. The book offers readers both the fundamentals and latest developments in how lean burn (broadly defined) can increase fuel economy and decrease emissions, while still achieving desired power output and performance. This volume brings together research and design of lean combustion systems across the technology spectrum in order to explore the state-of-the-art in lean combustion. Readers will learn about advances in the understanding of ultra-lean fuel mixtures and how new types of burners and approaches to managing heat flow can reduce problems often found with lean combustion (such as slow, difficult ignition and frequent flame extinction). This book offers abundant references and examples of real-world applications. New to this edition are significantly revised chapters on IC engines and stability/oscillations, and new case studies and examples. Written by a team of experts, this contributed reference book aims to teach its reader to maximize efficiency and minimize both economic and environmental costs. Presents a comprehensive collection of lean burn technology across potential applications, allowing readers to compare and contrast similarities and differences Provides an extensive update on IC engines including compression ignition (diesel), spark ignition, and homogeneous charge compression ignition (HCCI) Includes an extensive revision to the Stability/Oscillations chapter Includes use of alternative fuels such as biogas and hydrogen for relevant technologies Covers new developments in lean combustion using high levels of pre-heat and heat recirculating burners, as well as the active control of lean combustion instabilities

Advances in Fluid and Thermal Engineering

Advances in Fluid and Thermal Engineering
Author: Basant Singh Sikarwar
Publsiher: Springer Nature
Total Pages: 135
Release: 2021
ISBN 10: 9811601593
ISBN 13: 9789811601590
Language: EN, FR, DE, ES & NL

Advances in Fluid and Thermal Engineering Book Review:

Energy Research Abstracts

Energy Research Abstracts
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 1993
ISBN 10: 1928374650XXX
ISBN 13: MSU:31293010869521
Language: EN, FR, DE, ES & NL

Energy Research Abstracts Book Review:

Flame Structure and Stabilization in Premixed Swirl stabilized Combustion

Flame Structure and Stabilization in Premixed Swirl stabilized Combustion
Author: Craig L. Beyler
Publsiher: Unknown
Total Pages: 138
Release: 1981
ISBN 10: 1928374650XXX
ISBN 13: CORNELL:31924004825315
Language: EN, FR, DE, ES & NL

Flame Structure and Stabilization in Premixed Swirl stabilized Combustion Book Review:

Approaches for Clean Combustion in Gas Turbines

Approaches for Clean Combustion in Gas Turbines
Author: Medhat A. Nemitallah,Ahmed A. Abdelhafez,Mohamed A. Habib
Publsiher: Springer Nature
Total Pages: 417
Release: 2020-03-24
ISBN 10: 303044077X
ISBN 13: 9783030440770
Language: EN, FR, DE, ES & NL

Approaches for Clean Combustion in Gas Turbines Book Review:

This book focuses on the development of novel combustion approaches and burner designs for clean power generation in gas turbines. It shows the reader how to control the release of pollutants to the environment in an effort to reduce global warming. After an introduction to global warming issues and clean power production for gas turbine applications, subsequent chapters address premixed combustion, burner designs for clean power generation, gas turbine performance, and insights on gas turbine operability. Given its scope, the book can be used as a textbook for graduate-level courses on clean combustion, or as a reference book to accompany compact courses for mechanical engineers and young researchers around the world.

Flame Spray Drying

Flame Spray Drying
Author: Mariia Sobulska,Ireneusz Zbicinski
Publsiher: CRC Press
Total Pages: 158
Release: 2021-09-23
ISBN 10: 1000454916
ISBN 13: 9781000454918
Language: EN, FR, DE, ES & NL

Flame Spray Drying Book Review:

Drying processes are among the most energy-consuming operations in industry. Flame spray drying (FSD) is a novel approach to reduce the energy supply needed for the spray drying process. Flame Spray Drying: Equipment, Mechanism, and Perspectives describes FSD technology and current developments in flame techniques and evaluates potential industrial implementation. Details advantages of FSD in terms of energy consumption and reduced drying time Promotes applications of biofuels for the drying process Analyzes the FSD method from CFD modelling to product quality Evaluates potential safety and product degradation risks Provides examples of potential applications of the FSD technique in drying of different materials This book describes an important new technique that is useful to chemical and process engineering researchers, professionals, and students working with drying technologies.