Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Low Temperature Chemistry And Cool Flame Characterization In Premixed And Nonpremixed Combustion
Download Low Temperature Chemistry And Cool Flame Characterization In Premixed And Nonpremixed Combustion full books in PDF, epub, and Kindle. Read online Low Temperature Chemistry And Cool Flame Characterization In Premixed And Nonpremixed Combustion ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Low Temperature Chemistry and Cool Flame Characterization in Premixed and Nonpremixed Combustion by : Matthew Brown
Download or read book Low Temperature Chemistry and Cool Flame Characterization in Premixed and Nonpremixed Combustion written by Matthew Brown and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pursuit of next-generation internal combustion engines with higher thermal efficiencies and lower greenhouse gas emissions has motivated fundamental research to explore currently unexploited combustion chemistry pathways. In recent years, researchers have focused on low temperature combustion technologies which have demonstrated potential to satisfy environmental regulations that the automotive sector is required to meet. Low temperature chemistry (LTC) engine technologies include strategies such as homogeneous charge compression ignition (HCCI), reactivity-controlled compression ignition (RCCI), partially premixed compression ignition (PPCI), and spark-assisted compression ignition (SACI), and have received great attention. However, LTC fuel oxidation is still not well-understood despite its importance in combustion phenomena such as engine knock. This dissertation advances the understanding of LTC, and the cool flames formed from LTC, through experiments and simulations of combustion phenomena that incorporate both complex LTC kinetics and transport interactions. Fundamental cool flame properties such as propagation speed and LTC-derived CH2O structure in premixed and nonpremixed flames are measured experimentally to provide novel insights into cool flame characteristics and simulation targets for model development. Insights from experiments and modeling are applied to the simulation of cool flames formed from droplet combustion in microgravity, such as those discovered aboard the International Space Station (ISS). The outcomes of this dissertation provide new insights into LTC and cool flames in engine-relevant applications, and the data and analyses developed in this work can aid in the future development and refinement of LTC kinetics models.
Book Synopsis Low-temperature Combustion and Autoignition by : M.J. Pilling
Download or read book Low-temperature Combustion and Autoignition written by M.J. Pilling and published by Elsevier. This book was released on 1997-11-27 with total page 823 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion has played a central role in the development of our civilization which it maintains today as its predominant source of energy. The aim of this book is to provide an understanding of both fundamental and applied aspects of low-temperature combustion chemistry and autoignition. The topic is rooted in classical observational science and has grown, through an increasing understanding of the linkage of the phenomenology to coupled chemical reactions, to quite profound advances in the chemical kinetics of both complex and elementary reactions. The driving force has been both the intrinsic interest of an old and intriguing phenomenon and the centrality of its applications to our economic prosperity. The volume provides a coherent view of the subject while, at the same time, each chapter is self-contained.
Book Synopsis Experimental and Numerical Characterization of Ozone-enhanced Laminar Premixed Cool Flames by : Mohammadhadi Hajilou
Download or read book Experimental and Numerical Characterization of Ozone-enhanced Laminar Premixed Cool Flames written by Mohammadhadi Hajilou and published by . This book was released on 2019 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achievement of highly advanced internal combustion engines with higher thermal efficiencies and lower pollutant formation is of significant importance. Chemical kinetics play an important role in this regard and a precise understanding of them can aid in better modeling of combustion phenomena under engine-relevant conditions. While high temperature oxidation kinetics have been investigated a great deal, the reaction pathways and kinetics of low temperature fuel oxidation are still not well-developed despite their importance in combustion phenomena such as engine knock. Hence, an experimental platform which can provide benchmark results under strong chemistry-transport coupling for the validation and development of low temperature chemical kinetics models is advantageous. An experimental setup for the study of low temperature fuel combustion was developed and used to characterize ozone-enhanced laminar premixed cool flames, where the setup had the capability to produce stabilized cool flames of different fuels over a range of equivalence ratios and at sub-atmospheric pressures. The experimental results included quantification of adiabatic cool flame propagation speeds using a lift-off height technique, and spatially-resolved flame temperature profiles. Additionally, species analysis via gas chromatography was performed and fully-resolved species concentration profiles as well as species concentrations at quasi-equilibrium conditions downstream of the cool flames were obtained. Formaldehyde Planar Laser Induced Fluorescence (CH2O PLIF) was also utilized to characterize the lift-off heights of cool flames and estimate the propagation speed, and the results were compared with those from broadband chemiluminescence. CH2O PLIF was also used to investigate the adiabicity assumption for freely-propagating cool flames. The method of Directed Relation Graph was utilized to reduce chemical kinetics models and capture the cool flame chemistry, enabling non-fixed temperature and freely propagating simulations of cool flames without hot flame transition as well as the study of important cool flame reaction pathways. The experimental results were compared to numerical simulations and reasonable agreement was observed. The important outcomes of this work include the demonstration and utilization of a novel experimental platform for the study of cool flames, generation of unique data regarding propagation speeds of cool flame, and a reduction method to capture and study cool flame chemistry.
Book Synopsis Cool Flames and the Effects of Low Temperature Combustion on Detonations by : Marcus Brown
Download or read book Cool Flames and the Effects of Low Temperature Combustion on Detonations written by Marcus Brown and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of next generation combustion engines with improved thermal efficiencies is critical in achieving international greenhouse gas emissions objectives. In many potential advanced combustion engines, including detonation-based engines, low temperature chemistry (LTC) plays a critical role in the initial chemical kinetics driving proper combustion timing or may function as a kind of parasitic combustion diminishing engine performance. Although high temperature combustion chemistry has been extensively studied, LTC and its effects on detonations are comparatively less known. This dissertation first investigates LTC in laminar, freely propagating n-decane/O2/O3 cool flames by experimentally characterizing the propagation speeds, flame temperatures, and products over a range of equivalence ratios. A comparison is made to one-dimensional cool flame simulations and potential causes for discrepancies between experimental findings and numerical results are explored. The second aim of this dissertation is to investigate the effects of thermal pretreatment of reactants by LTC on subsequent detonation of those reactants. Ozoneless and O3-enhanced DME/O2 reactants undergo LTC induced by reactant heating, and subsequent detonations are experimentally investigated by measuring detonation wave velocity, mean cell size, and general detonability with differing thermal pretreatment times over a range of O3 enhancement levels and equivalence ratios. Numerical simulations are employed, results are compared to experimental results, and improvements of existing empirical detonation correlations are presented and discussed. Finally, the significance of this work for next generation propulsion engines is discussed.
Book Synopsis Turbulent Premixed Flames by : Nedunchezhian Swaminathan
Download or read book Turbulent Premixed Flames written by Nedunchezhian Swaminathan and published by Cambridge University Press. This book was released on 2011-04-25 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: A work on turbulent premixed combustion is important because of increased concern about the environmental impact of combustion and the search for new combustion concepts and technologies. An improved understanding of lean fuel turbulent premixed flames must play a central role in the fundamental science of these new concepts. Lean premixed flames have the potential to offer ultra-low emission levels, but they are notoriously susceptible to combustion oscillations. Thus, sophisticated control measures are inevitably required. The editors' intent is to set out the modeling aspects in the field of turbulent premixed combustion. Good progress has been made on this topic, and this cohesive volume contains contributions from international experts on various subtopics of the lean premixed flame problem.
Book Synopsis Chemistry in Premixed Flames by : Charles Paine Fenimore
Download or read book Chemistry in Premixed Flames written by Charles Paine Fenimore and published by Pergamon. This book was released on 1964 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling and Simulation of Turbulent Combustion by : Santanu De
Download or read book Modeling and Simulation of Turbulent Combustion written by Santanu De and published by Springer. This book was released on 2017-12-12 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive review of state-of-the-art models for turbulent combustion, with special emphasis on the theory, development and applications of combustion models in practical combustion systems. It simplifies the complex multi-scale and nonlinear interaction between chemistry and turbulence to allow a broader audience to understand the modeling and numerical simulations of turbulent combustion, which remains at the forefront of research due to its industrial relevance. Further, the book provides a holistic view by covering a diverse range of basic and advanced topics—from the fundamentals of turbulence–chemistry interactions, role of high-performance computing in combustion simulations, and optimization and reduction techniques for chemical kinetics, to state-of-the-art modeling strategies for turbulent premixed and nonpremixed combustion and their applications in engineering contexts.
Book Synopsis Combustion Chemistry and the Carbon Neutral Future by : Kenneth Brezinsky
Download or read book Combustion Chemistry and the Carbon Neutral Future written by Kenneth Brezinsky and published by Elsevier. This book was released on 2023-02-16 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the demands for cleaner, more efficient, reduced and zero carbon emitting transportation increase, the traditional focus of Combustion Chemistry research is stretching and adapting to help provide solutions to these contemporary issues. Combustion Chemistry and the Carbon Neutral Future: What will the Next 25 Years of Research Require? presents a guide to current research in the field and an exploration of possible future steps as we move towards cleaner, greener and reduced carbon combustion chemistry. Beginning with a discussion of engine emissions and soot, the book goes on to discuss a range of alternative fuels, including hydrogen, ammonia, small alcohols and other bio-oxygenates, natural gas, syngas and synthesized hydrocarbon fuels. Methods for predicting and improving efficiency and sustainability, such as low temperature and catalytic combustion, chemical looping, supercritical fluid combustion, and diagnostic monitoring even at high pressure, are then explored. Some novel aspects of biomass derived aviation fuels and combustion synthesis are also covered. Combining the knowledge and experience of an interdisciplinary team of experts in the field, Combustion Chemistry and the Carbon Neutral Future: What will the Next 25 Years of Research Require? is an insightful guide to current and future focus areas for combustion chemistry researchers in line with the transition to greener, cleaner technologies. Provides insight on current developments in combustion chemistry as a tool for supporting a reduced-carbon future Reviews modeling and diagnostic tools, in addition to key approaches and alternative fuels Includes projections for the future from leaders in the field, pointing current and prospective researchers to potentially fruitful areas for exploration
Book Synopsis Fundamentals of Combustion Processes by : Sara McAllister
Download or read book Fundamentals of Combustion Processes written by Sara McAllister and published by Springer Science & Business Media. This book was released on 2011-05-10 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Combustion Processes is designed as a textbook for an upper-division undergraduate and graduate level combustion course in mechanical engineering. The authors focus on the fundamental theory of combustion and provide a simplified discussion of basic combustion parameters and processes such as thermodynamics, chemical kinetics, ignition, diffusion and pre-mixed flames. The text includes exploration of applications, example exercises, suggested homework problems and videos of laboratory demonstrations
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.
Download or read book Combustion written by Jürgen Warnatz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion is an old technology, which at present provides about 90% of our worldwide energy support. Combustion research in the past used fluid mechanics with global heat release by chemical reactions described with thermodynamics, assuming infinitely fast reactions. This approach was useful for stationary combustion processes, but it is not sufficient for transient processes like ignition and quenching or for pollutant formation. Yet pollutant formation during combustion of fossil fuels is a central topic and will continue to be so in future. This book provides a detailed and rigorous treatment of the coupling of chemical reactions and fluid flow. Also, combustion-specific topics of chemistry and fluid mechanics are considered, and tools described for the simulation of combustion processes. For the 2nd edition, the parts dealing with experiments, spray combustion, and soot were thoroughly revised.
Download or read book Combustion written by J. Warnatz and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a rigorous treatment of the coupling of chemical reactions and fluid flow. Combustion-specific topics of chemistry and fluid mechanics are considered and tools described for the simulation of combustion processes. This edition is completely restructured. Mathematical Formulae and derivations as well as the space-consuming reaction mechanisms have been replaced from the text to appendix. A new chapter discusses the impact of combustion processes on the atmosphere, the chapter on auto-ignition is extended to combustion in Otto- and Diesel-engines, and the chapters on heterogeneous combustion and on soot formation are heavily revised.
Book Synopsis High Temperature Air Combustion by : Hiroshi Tsuji
Download or read book High Temperature Air Combustion written by Hiroshi Tsuji and published by CRC Press. This book was released on 2002-12-03 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maximize efficiency and minimize pollution: the breakthrough technology of high temperature air combustion (HiTAC) holds the potential to overcome the limitations of conventional combustion and allow engineers to finally meet this long-standing imperative. Research has shown that HiTAC technology can provide simultaneous reduction of CO2 and nitric
Book Synopsis Turbulent Combustion by : Norbert Peters
Download or read book Turbulent Combustion written by Norbert Peters and published by Cambridge University Press. This book was released on 2000-08-15 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The combustion of fossil fuels remains a key technology for the foreseeable future. It is therefore important that we understand the mechanisms of combustion and, in particular, the role of turbulence within this process. Combustion always takes place within a turbulent flow field for two reasons: turbulence increases the mixing process and enhances combustion, but at the same time combustion releases heat which generates flow instability through buoyancy, thus enhancing the transition to turbulence. The four chapters of this book present a thorough introduction to the field of turbulent combustion. After an overview of modeling approaches, the three remaining chapters consider the three distinct cases of premixed, non-premixed, and partially premixed combustion, respectively. This book will be of value to researchers and students of engineering and applied mathematics by demonstrating the current theories of turbulent combustion within a unified presentation of the field.
Book Synopsis Microgravity Combustion by : Howard D. Ross
Download or read book Microgravity Combustion written by Howard D. Ross and published by Elsevier. This book was released on 2001-09-03 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to understanding combustion, the burning of a substance that produces heat and often light, in microgravity environments-i.e., environments with very low gravity such as outer space. Readers are presented with a compilation of worldwide findings from fifteen years of research and experimental tests in various low-gravity environments, including drop towers, aircraft, and space.Microgravity Combustion is unique in that no other book reviews low- gravity combustion research in such a comprehensive manner. It provides an excellent introduction for those researching in the fields of combustion, aerospace, and fluid and thermal sciences. * An introduction to the progress made in understanding combustion in a microgravity environment* Experimental, theoretical and computational findings of current combustion research* Tutorial concepts, such as scaling analysis* Worldwide microgravity research findings
Book Synopsis MILD Combustion: Modelling Challenges, Experimental Configurations and Diagnostic Tools by : Alessandro Parente
Download or read book MILD Combustion: Modelling Challenges, Experimental Configurations and Diagnostic Tools written by Alessandro Parente and published by Frontiers Media SA. This book was released on 2021-11-26 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dust Explosion Dynamics by : Russell A. Ogle
Download or read book Dust Explosion Dynamics written by Russell A. Ogle and published by Butterworth-Heinemann. This book was released on 2016-09-10 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dust Explosion Dynamics focuses on the combustion science that governs the behavior of the three primary hazards of combustible dust: dust explosions, flash fires, and smoldering. It explores the use of fundamental principles to evaluate the magnitude of combustible dust hazards in a variety of settings. Models are developed to describe dust combustion phenomena using the principles of thermodynamics, transport phenomena, and chemical kinetics. Simple, tractable models are described first and compared with experimental data, followed by more sophisticated models to help with future challenges. Dr. Ogle introduces the reader to just enough combustion science so that they may read, interpret, and use the scientific literature published on combustible dusts. This introductory text is intended to be a practical guide to the application of combustible dust models, suitable for both students and experienced engineers. It will help you to describe the dynamics of explosions and fires involving dust and evaluate their consequences which in turn will help you prevent damage to property, injury and loss of life from combustible dust accidents. Demonstrates how the fundamental principles of combustion science can be applied to understand the ignition, propagation, and extinction of dust explosions Explores fundamental concepts through model-building and comparisons with empirical data Provides detailed examples to give a thorough insight into the hazards of combustible dust as well as an introduction to relevant scientific literature
