Computational Kinetics and Sensitivity Analysis of Hydrogen-Oxygen Combustion PDF Download
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Author: E. P. Dougherty
Publisher:
ISBN:
Category :
Languages : en
Pages : 72
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Book Description
Kinetic modeling calculations on the H2-02 system have been carried out with an extensive reaction set to probe the vicinity of the three explosion limits. Sensitivity analysis is used throughout this investigation to study system behavior, in particular, to elucidate mechanistic details. The concentrations and sensitivity profiles are discussed in light of the appropriate experimental results and existing theories of hydrogen combustion. The results indicate the present model to be useful over a wide pressure-temperature range.
Author: E. P. Dougherty
Publisher:
ISBN:
Category :
Languages : en
Pages : 72
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Book Description
Kinetic modeling calculations on the H2-02 system have been carried out with an extensive reaction set to probe the vicinity of the three explosion limits. Sensitivity analysis is used throughout this investigation to study system behavior, in particular, to elucidate mechanistic details. The concentrations and sensitivity profiles are discussed in light of the appropriate experimental results and existing theories of hydrogen combustion. The results indicate the present model to be useful over a wide pressure-temperature range.
Author: T. L. Burks
Publisher:
ISBN:
Category : Chemical kinetics
Languages : en
Pages : 70
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Book Description
A set of elementary reactions and their corresponding rate coefficients has been assembled to describe the homogeneous H2-O2 reaction system over the temperature range 300-3000 K. The reaction mechanism was drawn together assuming that H2-O2 reactive mixtures could be adequately described in terms of self-consistent, thermal distributions of electronically neutral, ground-state reactants, intermediates and products. The resulting time-dependent ordinary differential equations describing the system were integrated assuming various initial pressures, temperatures and initial concentrations of reactants and diluents. The computed results have been compared with experimentally observed induction times, second explosion limits, the rate of reaction above the second explosion limit and the temporal behavior of reaction species. The good agreement between the computational and experimental results attests to the accuracy of the assembled mechanism in its description of the homogeneous reaction system and supports the validity of the set of associated rate coefficients for the elementary reactions of the mechanism over a broad range of reaction conditions. (Author).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 29
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Book Description
Detailed and global chemical kinetic computations for hydrogen-air mixtures have been performed to describe flame propagation, flame structure and ignition phenomena. Simulations of laminar flame speeds, flame compositions and shock tube ignition delay times have been successfully performed. Sensitivity analysis was applied to determine the governing rate-controlling reactions for the experimental data sets examined. In the flame propagation and structure studies, the reactions, OH + H2 = H20 + H, 0 + H2 = OH + H and 0 + OH = 02 + H were the most important in flames. The shock tube ignition delay time study indicated the H + 02 + M = H02 + M (M = N2, H2) and 0 + OH = 02 + H reactions controlled ignition. A global rate expression for a one-step overall reaction was developed and validated against experimental hydrogen-air laminar flame speed data. The global reaction expression was determined to be 1.8 x 1013 exp( -17614K/T)[H2]{sup 1.0}[O2]{sup 0.5} for the single step reaction H2 + 1/2O2 = H2O.
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 508
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Book Description
Author: Richard S. Brokaw
Publisher:
ISBN:
Category : Chemical kinetics
Languages : en
Pages : 26
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Book Description
Author: United States. Air Force. Directorate of Chemical and Atmospheric Sciences
Publisher:
ISBN:
Category : Atmospheric chemistry
Languages : en
Pages : 594
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Book Description
Author: Stephen K. Scott
Publisher: Oxford University Press
ISBN: 9780198556589
Category : Science
Languages : en
Pages : 484
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Book Description
Table of contents: 1. Introduction. 2. Mappings. 3. Flows. 1. Two-variable systems. 4. Flows II. Three-vairable systems. 5. Forced systems. 6. Coupled systems. 7.Experimental methods. 8. The Belousov-Zhabotinskii reaction and other solution-phase reactions. 9. Gas-phase reactions. 10. Heterogeneous catalysis. 11. Electrodissolution reactions. 12. Biochemical systems. Index.
Author: Hsueh-Fen Juan
Publisher: World Scientific
ISBN: 9814324450
Category : Medical
Languages : en
Pages : 339
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Book Description
This volume presents an overview of recent developments in systems biology and their applications in cancer-related research. The ongoing advances in our understanding of genomics and proteomics, coupled with the development of new and more robust tools, have led to an emphasis on analyzing biological systems at multiple levels. Thus, there is a need to integrate different types of data into a comprehensive "systems" view. Written by active researchers in the emerging areas, this book gives senior undergraduate students, graduate students and new researchers an idea of where the frontiers of systems biology are and an opportunity to learn high-throughput techniques in use. One of the particular emphases of the book is to elucidate the molecular mechanisms in cancer. The discovery of biomarkers and anti-cancer drugs using systems biology approach is also extensively discussed.
Author: A. K. Oppenheim
Publisher: Springer Science & Business Media
ISBN: 3540773649
Category : Science
Languages : en
Pages : 374
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Book Description
The Dynamics of Combustion Systems are presented in three parts in this book. Together they provide a step towards the automatic control of explosions. The exothermic character of combustion systems, their fluid dynamic features, and explosive nature, are covered by this work which also provides a technical monograph for readers with some background in combustion technology. The book is likely to appeal to graduate students, and researchers in academia and industry.
Author: Allan T. Kirkpatrick
Publisher: John Wiley & Sons
ISBN: 1394187076
Category : Science
Languages : en
Pages : 596
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Book Description
The new edition of a classic textbook on combustion principles and processes, covering the latest developments in fuels and applications in a student-friendly format Principles of Combustion provides clear and authoritative coverage of chemically reacting flow systems. Detailed and accessible chapters cover key combustion topics such as chemical kinetics, reaction mechanisms, laminar flames, droplet evaporation and burning, and turbulent reacting flows. Numerous figures, end-of-chapter problems, extensive reference materials, and examples of specific combustion applications are integrated throughout the text. Newly revised and expanded, Principles of Combustion makes it easier for students to absorb and master each concept covered by presenting content through smaller, bite-sized chapters. Two entirely new chapters on turbulent reacting flows and solid fuel combustion are accompanied by additional coverage of low carbon fuels such as hydrogen, natural gas, and renewable fuels. This new edition contains a wealth of new homework problems, new application examples, up-to-date references, and access to a new companion website with MATLAB files that students can use to run different combustion cases. Fully updated to meet the needs of today’s students and instructors, Principles of Combustion: Provides problem-solving techniques that draw from thermodynamics, fluid mechanics, and chemistry Addresses contemporary topics such as zero carbon combustion, turbulent combustion, and sustainable fuels Discusses the role of combustion emissions in climate change and the need for reducing reliance on carbon-based fossil fuels Covers a wide range of combustion application areas, including internal combustion engines, industrial heating, and materials processing Containing both introductory and advanced material on various combustion topics, Principles of Combustion, Third Edition, is an essential textbook for upper-level undergraduate and graduate courses on combustion, combustion theory, and combustion processes. It is also a valuable reference for combustion engineers and scientists wanting to better understand a particular combustion problem.
