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A Shock Tube Study Of The Reactions Of The Hydroxyl Radical With Combustion Species And Pollutants
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Book Synopsis Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species and Pollutants. Final Report by :
Download or read book Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species and Pollutants. Final Report written by and published by . This book was released on 1998 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shock heating t-butyl hydroperoxide behind a reflected shock wave has proved to be as a convenient source of hydroxyl radicals at temperatures near 1000 K. We applied this technique to the measurement of reaction rate coefficients of OH with several species of interest in combustion chemistry, and developed a thermochemical kinetics/transition state theory (TK-TST) model for predicting the temperature dependence of OH rate coefficients.
Book Synopsis A Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species and Pollutants by :
Download or read book A Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species and Pollutants written by and published by . This book was released on 1992 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: To extend the database of reliable high temperature measurements of OH radicals with hydrocarbons and other fuels and their decomposition products, we undertook, a research program with both experimental and computational tasks. The experimental goal was to design a procedure for measuring, at combustion temperatures, the reaction rate coefficients of OH radicals with fuels and other species of importance in combustion or propulsion systems. The computational effort was intended to refine the semi-empirical thermochemical kinetics/ transition-state-theory (TK-TST) procedures for extrapolating rate coefficients of reactions of OH with combustion species of interest, for predicting rate coefficients for species not studied in the laboratory, and to examine the ability of the theory to predict rate coefficients for different pathways in cases where the reagent possessed nonequivalent H atoms.
Book Synopsis A Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species and Pollutants. Progress Report by :
Download or read book A Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species and Pollutants. Progress Report written by and published by . This book was released on 1992 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: To extend the database of reliable high temperature measurements of OH radicals with hydrocarbons and other fuels and their decomposition products, we undertook, a research program with both experimental and computational tasks. The experimental goal was to design a procedure for measuring, at combustion temperatures, the reaction rate coefficients of OH radicals with fuels and other species of importance in combustion or propulsion systems. The computational effort was intended to refine the semi-empirical thermochemical kinetics/ transition-state-theory (TK-TST) procedures for extrapolating rate coefficients of reactions of OH with combustion species of interest, for predicting rate coefficients for species not studied in the laboratory, and to examine the ability of the theory to predict rate coefficients for different pathways in cases where the reagent possessed nonequivalent H atoms.
Book Synopsis A Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species by :
Download or read book A Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reactions of OH radicals with hydrocarbons have received a great deal of attention in recent years because of these processes are principal steps in the oxidation of organic fuels -- whether occurring in combustion/propulsion systems, in the atmosphere, or elsewhere. Of the various radicals capable of attacking hydrocarbons, OH radicals are generally the most reactive, and their reactions directly yield water molecules, one of the major final oxidation products. In the atmosphere, the combined effect of the OH radical's reactivity and concentration make it the single species that determines the atmospheric lifetime of an organic substance. The principal goals of the kineticist in the field of oxidation chemistry are (1) to measure as many elementary reaction rate coefficients as are conveniently studied in the laboratory; and (2) to develop theoretical and/or semiempirical tools for extrapolating from measured rate coefficients to unmeasured ones. The latter step is necessary because of the sheer number of reactions of possible interest.
Book Synopsis A Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species. Progress Report, June 1990--May 1991 by :
Download or read book A Shock Tube Study of the Reactions of the Hydroxyl Radical with Combustion Species. Progress Report, June 1990--May 1991 written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reactions of OH radicals with hydrocarbons have received a great deal of attention in recent years because of these processes are principal steps in the oxidation of organic fuels -- whether occurring in combustion/propulsion systems, in the atmosphere, or elsewhere. Of the various radicals capable of attacking hydrocarbons, OH radicals are generally the most reactive, and their reactions directly yield water molecules, one of the major final oxidation products. In the atmosphere, the combined effect of the OH radical's reactivity and concentration make it the single species that determines the atmospheric lifetime of an organic substance. The principal goals of the kineticist in the field of oxidation chemistry are (1) to measure as many elementary reaction rate coefficients as are conveniently studied in the laboratory; and (2) to develop theoretical and/or semiempirical tools for extrapolating from measured rate coefficients to unmeasured ones. The latter step is necessary because of the sheer number of reactions of possible interest.
Book Synopsis Shock Tube Studies of Elementary Hydroxyl-radical Reactions Important in Combustion Systems by : Margaret Stacey Wooldridge
Download or read book Shock Tube Studies of Elementary Hydroxyl-radical Reactions Important in Combustion Systems written by Margaret Stacey Wooldridge and published by . This book was released on 1995 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Journal of Chemical Kinetics by :
Download or read book International Journal of Chemical Kinetics written by and published by . This book was released on 1991 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics covered in this publication include quantitative relationships between molecular structure and chemical activity, organic/inorganic chemistry, biochemical kinetics, and reaction mechanisms. Surface kinetics are also explored.
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 1973 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shock-tube Study of the Reaction H + O2 + Ar [rightward-pointing Arrow] HO2 + Ar by : Casimir J. Jachimowski
Download or read book Shock-tube Study of the Reaction H + O2 + Ar [rightward-pointing Arrow] HO2 + Ar written by Casimir J. Jachimowski and published by . This book was released on 1972 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Shock Tube Study of NCN and HCO Radical Reactions Related to the NOx Formation in Combustion Processes by : Johannes Dammeier
Download or read book A Shock Tube Study of NCN and HCO Radical Reactions Related to the NOx Formation in Combustion Processes written by Johannes Dammeier and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shock Tube Investigations of the Reaction Kinetics of Small Unsaturated Hydrocarbon Species by : Ravi Xavier Fernandes
Download or read book Shock Tube Investigations of the Reaction Kinetics of Small Unsaturated Hydrocarbon Species written by Ravi Xavier Fernandes and published by Cuvillier Verlag. This book was released on 2004 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Carbon Dioxide and Water Vapor on the Induction Period of the Hydrogen-oxygen Reaction by : Casimir J. Jachimowski
Download or read book Effect of Carbon Dioxide and Water Vapor on the Induction Period of the Hydrogen-oxygen Reaction written by Casimir J. Jachimowski and published by . This book was released on 1968 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measuring Hydroxyl Radicals During the Oxidation of Methane, Ethane, Ethylene, and Acetylene in a Shock Tube Using UV Absorption Spectroscopy by : Christopher Joseph Erik Aul
Download or read book Measuring Hydroxyl Radicals During the Oxidation of Methane, Ethane, Ethylene, and Acetylene in a Shock Tube Using UV Absorption Spectroscopy written by Christopher Joseph Erik Aul and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The hydroxyl (OH) radical is a common intermediate species in any hydrogen- or hydrocarbon-based flame. Investigating OH at elevated temperatures and pressures is not a trivial task, and many considerations must be made to fully study the molecule. Shock tubes can provide the experimenter with a wide range of temperatures and pressures to investigate a variety of combustion characteristics including, but not limited to, OH kinetic profiles. Described in this dissertation is the diagnostic used to measure OH within a shock tube using UV absorption spectroscopy from an enhanced UV Xenon lamp passed through a spectrometer. OH absorption was made over a narrow range of wavelengths around 309.551 nm within the widely studied OH X-->A ground vibrational transition region. Experiments have been performed in the shock-tube facility at Texas A&M University using this OH absorption diagnostic. A calibration mixture of stoichiometric H2/O2 diluted in 98% argon by volume was tested initially and compared with a well-known hydrogen-based kinetics mechanism to generate an absorption coefficient correlation. This correlation is valid over the range of conditions observed in the experiments at two pressures near 2 and 13 atm and temperatures from 1182 to 2017 K. Tests were completed using the absorption coefficient correlation on stoichiometric mixtures of methane, methane and water, ethane, ethylene, and acetylene to compare against a comprehensive, detailed chemical kinetics mechanism which considers up through C5 hydrocarbons. Measurements of methane show good agreement in peak OH formation and ignition delay time when compared with the mechanism. Improvements can be made in the shape of the methane-oxygen OH profile, and sensitivity and rate of production analyses were performed with the mechanism to identify key reactions for tuning. Similar results were found for methane-water-oxygen mixtures with no difference in profile shape or ignition delay time noted. There is room for improvement between the mechanism and measured values of OH for ethane-, ethylene-, and acetylene-based mixtures, although interesting pre-ignition features are nonetheless captured relatively well by the mechanism. Uncertainty in the measurement comes from the inherent noise in the photomultiplier tube signal and is ±25-150 ppm for the 2-atm experiments and ±6-25 ppm for the 13-atm experiments. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/149534
Book Synopsis Shock tube investigations of the reaction kinetics of small unsaturated hydrocarbon species by :
Download or read book Shock tube investigations of the reaction kinetics of small unsaturated hydrocarbon species written by and published by Cuvillier Verlag. This book was released on 2004-07-29 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shock-tube Study of the Reaction H + O B2 S + Ar -> HO B2 S + Ar by : Casimir J. Jachimowski
Download or read book Shock-tube Study of the Reaction H + O B2 S + Ar -> HO B2 S + Ar written by Casimir J. Jachimowski and published by . This book was released on 1972 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transport Phenomena In Combustion by : SH Chan
Download or read book Transport Phenomena In Combustion written by SH Chan and published by Taylor & Francis. This book was released on 2024-09-06 with total page 1862 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set presents the proceedings from the 8th International Symposium on Transport Phenomena in Combustion. There are more than 150 chapters that provide an extensive review of topics such as complete numerical simulation of combustion and heat transfer in furnaces and boilers, the interaction of combustion and heat transfer in porous media for low emission, high efficiency applications, industrial combustion technology, experimental and diagnostic methods and active combustion control, and fire research, internal combustion engine, Nox and soot emission.
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