Analysis Of Fuel Vaporization Fuel Air Mixing And Combustion In Integrated Mixer Flame Holders

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Analysis of Fuel Vaporization, Fuel-Air Mixing, and Combustion in Integrated Mixer-Flame Holders

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781720383543
Total Pages : 40 pages
Book Rating : 4.3/5 (835 download)

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Book Synopsis Analysis of Fuel Vaporization, Fuel-Air Mixing, and Combustion in Integrated Mixer-Flame Holders by : National Aeronautics and Space Administration (NASA)

Download or read book Analysis of Fuel Vaporization, Fuel-Air Mixing, and Combustion in Integrated Mixer-Flame Holders written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Requirements to limit pollutant emissions from the gas turbine engines for the future High-Speed Civil Transport (HSCT) have led to consideration of various low-emission combustor concepts. One such concept is the Integrated Mixer-Flame Holder (IMFH). This report describes a series of IMFH analyses performed with KIVA-II, a multi-dimensional CFD code for problems involving sprays, turbulence, and combustion. To meet the needs of this study, KIVA-II's boundary condition and chemistry treatments are modified. The study itself examines the relationships between fuel vaporization, fuel-air mixing, and combustion. Parameters being considered include: mixer tube diameter, mixer tube length, mixer tube geometry (converging-diverging versus straight walls), air inlet velocity, air inlet swirl angle, secondary air injection (dilution holes), fuel injection velocity, fuel injection angle, number of fuel injection ports, fuel spray cone angle, and fuel droplet size. Cases are run with and without combustion to examine the variations in fuel-air mixing and potential for flashback due to the above parameters. The degree of fuel-air mixing is judged by comparing average, minimum, and maximum fuel/air ratios at the exit of the mixer tube, while flame stability is monitored by following the location of the flame front as the solution progresses from ignition to steady state. Results indicate that fuel-air mixing can be enhanced by a variety of means, the best being a combination of air inlet swirl and a converging-diverging mixer tube geometry. With the IMFH configuration utilized in the present study, flashback becomes more common as the mixer tube diameter is increased and is instigated by disturbances associated with the dilution hole flow.Deur, J. M. and Cline, M. C.Glenn Research CenterGAS TURBINE ENGINES; FLAME HOLDERS; VAPORIZING; COMBUSTION; COMPUTATIONAL FLUID DYNAMICS; MIXERS; FUEL INJECTION; CONVERGENT-DIVERGENT NOZZLES; COMBUSTION CHAMBERS; FLAME PROPAGATION; FUEL SPRAY

Calcium and Chemical Looping Technology for Power Generation and Carbon Dioxide (CO2) Capture

Author : Paul Fennell
Publisher : Elsevier
ISBN 13 : 0857097601
Total Pages : 467 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis Calcium and Chemical Looping Technology for Power Generation and Carbon Dioxide (CO2) Capture by : Paul Fennell

Download or read book Calcium and Chemical Looping Technology for Power Generation and Carbon Dioxide (CO2) Capture written by Paul Fennell and published by Elsevier. This book was released on 2015-05-21 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calcium and Chemical Looping Technology for Power Generation and Carbon Dioxide (CO2) Capture reviews the fundamental principles, systems, oxygen carriers, and carbon dioxide carriers relevant to chemical looping and combustion. Chapters review the market development, economics, and deployment of these systems, also providing detailed information on the variety of materials and processes that will help to shape the future of CO2 capture ready power plants. - Reviews the fundamental principles, systems, oxygen carriers, and carbon dioxide carriers relevant to calcium and chemical looping - Provides a lucid explanation of advanced concepts and developments in calcium and chemical looping, high pressure systems, and alternative CO2 carriers - Presents information on the market development, economics, and deployment of these systems

Gas Turbines for Electric Power Generation

Author : S. Can Gülen
Publisher : Cambridge University Press
ISBN 13 : 1108416659
Total Pages : 735 pages
Book Rating : 4.1/5 (84 download)

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Book Synopsis Gas Turbines for Electric Power Generation by : S. Can Gülen

Download or read book Gas Turbines for Electric Power Generation written by S. Can Gülen and published by Cambridge University Press. This book was released on 2019-02-14 with total page 735 pages. Available in PDF, EPUB and Kindle. Book excerpt: Everything you wanted to know about industrial gas turbines for electric power generation in one source with hard-to-find, hands-on technical information.

Gas Turbine Combustion

Author : Arthur H. Lefebvre
Publisher : CRC Press
ISBN 13 : 1420086057
Total Pages : 560 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Gas Turbine Combustion by : Arthur H. Lefebvre

Download or read book Gas Turbine Combustion written by Arthur H. Lefebvre and published by CRC Press. This book was released on 2010-04-26 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the developments in gas turbine combustion technology that have occurred in the last decade, Gas Turbine Combustion: Alternative Fuels and Emissions, Third Edition provides an up-to-date design manual and research reference on the design, manufacture, and operation of gas turbine combustors in applications ranging from aeronautical to po

Flames and Flame Properties

Author : Defense Documentation Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.X/5 (2 download)

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Book Synopsis Flames and Flame Properties by : Defense Documentation Center (U.S.)

Download or read book Flames and Flame Properties written by Defense Documentation Center (U.S.) and published by . This book was released on 1964 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Memorandum

Author :
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Technical Memorandum by :

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1979 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ramjet Engines

Author : Mikhail Makarovich Bondari͡u︡k
Publisher :
ISBN 13 :
Total Pages : 466 pages
Book Rating : 4.X/5 (1 download)

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Book Synopsis Ramjet Engines by : Mikhail Makarovich Bondari͡u︡k

Download or read book Ramjet Engines written by Mikhail Makarovich Bondari͡u︡k and published by . This book was released on 1969 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advanced Thermodynamics for Engineers

Author : D. Winterbone
Publisher : Butterworth-Heinemann
ISBN 13 : 0080523366
Total Pages : 399 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Advanced Thermodynamics for Engineers by : D. Winterbone

Download or read book Advanced Thermodynamics for Engineers written by D. Winterbone and published by Butterworth-Heinemann. This book was released on 1996-11-01 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the basic theories of thermodynamics are adequately covered by a number of existing texts, there is little literature that addresses more advanced topics. In this comprehensive work the author redresses this balance, drawing on his twenty-five years of experience of teaching thermodynamics at undergraduate and postgraduate level, to produce a definitive text to cover thoroughly, advanced syllabuses. The book introduces the basic concepts which apply over the whole range of new technologies, considering: a new approach to cycles, enabling their irreversibility to be taken into account; a detailed study of combustion to show how the chemical energy in a fuel is converted into thermal energy and emissions; an analysis of fuel cells to give an understanding of the direct conversion of chemical energy to electrical power; a detailed study of property relationships to enable more sophisticated analyses to be made of both high and low temperature plant and irreversible thermodynamics, whose principles might hold a key to new ways of efficiently covering energy to power (e.g. solar energy, fuel cells). Worked examples are included in most of the chapters, followed by exercises with solutions. By developing thermodynamics from an explicitly equilibrium perspective, showing how all systems attempt to reach a state of equilibrium, and the effects of these systems when they cannot, the result is an unparalleled insight into the more advanced considerations when converting any form of energy into power, that will prove invaluable to students and professional engineers of all disciplines.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1282 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Modeling and Simulation of Reactive Flows

Author : A.L. De Bortoli
Publisher : Elsevier
ISBN 13 : 0128029919
Total Pages : 212 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Modeling and Simulation of Reactive Flows by : A.L. De Bortoli

Download or read book Modeling and Simulation of Reactive Flows written by A.L. De Bortoli and published by Elsevier. This book was released on 2015-07-10 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling and Simulation of Reactive Flows presents information on modeling and how to numerically solve reactive flows. The book offers a distinctive approach that combines diffusion flames and geochemical flow problems, providing users with a comprehensive resource that bridges the gap for scientists, engineers, and the industry. Specifically, the book looks at the basic concepts related to reaction rates, chemical kinetics, and the development of reduced kinetic mechanisms. It considers the most common methods used in practical situations, along with equations for reactive flows, and various techniques—including flamelet, ILDM, and Redim—for jet flames and plumes, with solutions for both. In addition, the book includes techniques to accelerate the convergence of numerical simulation, and a discussion on the analysis of uncertainties with numerical results, making this a useful reference for anyone who is interested in both combustion in free flow and in porous media. - Helps readers learn how to apply applications of numerical methods to simulate geochemical kinetics - Presents methods on how to transform the transport equations in several coordinate systems - Includes discussions of the basic concepts related to reaction rates, chemical kinetics, and the development of reduced kinetic mechanisms, including the most common methods used in practical situations - Offers a distinctive approach that combines diffusion flames and geochemical flow problems

Combustion Engineering

Author : Kenneth W. Ragland
Publisher : CRC Press
ISBN 13 : 1466500018
Total Pages : 538 pages
Book Rating : 4.4/5 (665 download)

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Book Synopsis Combustion Engineering by : Kenneth W. Ragland

Download or read book Combustion Engineering written by Kenneth W. Ragland and published by CRC Press. This book was released on 2011-05-06 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion Engineering, Second Edition maintains the same goal as the original: to present the fundamentals of combustion science with application to today's energy challenges. Using combustion applications to reinforce the fundamentals of combustion science, this text provides a uniquely accessible introduction to combustion for undergraduate stud

Handbook of Biomass Downdraft Gasifier Engine Systems

Author : Thomas B. Reed
Publisher : Biomass Energy Foundation
ISBN 13 : 9781890607005
Total Pages : 160 pages
Book Rating : 4.6/5 (7 download)

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Book Synopsis Handbook of Biomass Downdraft Gasifier Engine Systems by : Thomas B. Reed

Download or read book Handbook of Biomass Downdraft Gasifier Engine Systems written by Thomas B. Reed and published by Biomass Energy Foundation. This book was released on 1988 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Renewable Hydrogen Technologies

Author : Luis M Gandia
Publisher : Newnes
ISBN 13 : 044456361X
Total Pages : 471 pages
Book Rating : 4.4/5 (445 download)

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Book Synopsis Renewable Hydrogen Technologies by : Luis M Gandia

Download or read book Renewable Hydrogen Technologies written by Luis M Gandia and published by Newnes. This book was released on 2013-05-03 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fields covered by the hydrogen energy topic have grown rapidly, and now it has become clearly multidisciplinary. In addition to production, hydrogen purification and especially storage are key challenges that could limit the use of hydrogen fuel. In this book, the purification of hydrogen with membrane technology and its storage in "solid" form using new hydrides and carbon materials are addressed. Other novelties of this volume include the power conditioning of water electrolyzers, the integration in the electric grid of renewable hydrogen systems and the future role of microreactors and micro-process engineering in hydrogen technology as well as the potential of computational fluid dynamics to hydrogen equipment design and the assessment of safety issues. Finally, and being aware that transportation will likely constitute the first commercial application of hydrogen fuel, two chapters are devoted to the recent advances in hydrogen fuel cells and hydrogen-fueled internal combustion engines for transport vehicles. - Hydrogen from water and biomass considered - Holistic approach to the topic of renewable hydrogen production - Power conditioning of water electrolyzers and integration of renewable hydrogen energy systems considered - Subjects not included in previous books on hydrogen energy - Micro process technology considered - Subject not included in previous books on hydrogen energy - Applications of CFD considered - Subject not included in previous books on hydrogen energy - Fundamental aspects will not be discussed in detail consciously as they are suitably addressed in previous books - Emphasis on technological advancements - Chapters written by recognized experts - Up-to date approach to the subjects and relevant bibliographic references

Gas Turbine Emissions

Author : Timothy C. Lieuwen
Publisher : Cambridge University Press
ISBN 13 : 052176405X
Total Pages : 385 pages
Book Rating : 4.5/5 (217 download)

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Book Synopsis Gas Turbine Emissions by : Timothy C. Lieuwen

Download or read book Gas Turbine Emissions written by Timothy C. Lieuwen and published by Cambridge University Press. This book was released on 2013-07-08 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of clean, sustainable energy systems is a preeminent issue in our time. Gas turbines will continue to be important combustion-based energy conversion devices for many decades to come, used for aircraft propulsion, ground-based power generation, and mechanical-drive applications. This book compiles the key scientific and technological knowledge associated with gas turbine emissions into a single authoritative source.

The Electrical Journal

Author :
Publisher :
ISBN 13 :
Total Pages : 938 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Electrical Journal by :

Download or read book The Electrical Journal written by and published by . This book was released on 1919 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Electrician

Author :
Publisher :
ISBN 13 :
Total Pages : 890 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis The Electrician by :

Download or read book The Electrician written by and published by . This book was released on 1919 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Stabilization and Dynamic of Premixed Swirling Flames

Author : Paul Palies
Publisher : Academic Press
ISBN 13 : 0128199970
Total Pages : 402 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Stabilization and Dynamic of Premixed Swirling Flames by : Paul Palies

Download or read book Stabilization and Dynamic of Premixed Swirling Flames written by Paul Palies and published by Academic Press. This book was released on 2020-07-03 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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