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Author: R. W. Bilger
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Author: R. W. Bilger
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Author: Robert Eric Beck
Publisher:
ISBN:
Category : Diffusion
Languages : en
Pages : 308
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Author: D. J. Robson
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Jay A. Hammer
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 280
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Author: Bernard Lewis
Publisher: Academic Press
ISBN: 1483258394
Category : Science
Languages : en
Pages : 754
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Book Description
Combustion, Flames, and Explosions of Gases, Second Edition focuses on the processes, methodologies, and reactions involved in combustion phenomena. The publication first offers information on theoretical foundations, reaction between hydrogen and oxygen, and reaction between carbon monoxide and oxygen. Discussions focus on the fundamentals of reaction kinetics, elementary and complex reactions in gases, thermal reaction, and combined hydrogen-carbon monoxide-oxygen reaction. The text then elaborates on the reaction between hydrocarbons and oxygen and combustion waves in laminar flow. The manuscript tackles combustion waves in turbulent flow and air entrainment and burning of jets of fuel gases. Topics include effect of turbulence spectrum and turbulent wrinkling on combustion wave propagation; ignition of high-velocity streams by hot solid bodies; burners with primary air entrainment; and description of jet flames. The book then takes a look at detonation waves in gases; emission spectra, ionization, and electric-field effects in flames; and methods of flame photography and pressure recording. The publication is a valuable reference for readers interested in combustion phenomena.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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In current study Numerical simulation of turbulent combustion process is approached using One Dimensional Turbulence (ODT) model. The ODT model is based on the coupling of molecular processes (reaction and diffusion) with turbulent transport in a spatially- and temporally-resolved fashion over a one-dimensional domain. The domain corresponds to a transverse (or radial) direction; while, the transient evolution of the thermo-chemical scalars on the 1D domain represents the spatial evolution downstream of the jet inlet. The linear-eddy approach for modeling molecular mixing in turbulent flow involves stochastic simulation on a 1D domain with sufficient resolution to predict all relevant physical length scales properly. Firstly ODT is carried out to predict the hydrogen and air jet diffusion flame with helium dilution in the fuel. The comparison with existing experimental data was made for the numerical result of ODT simulation of jet diffusion flames in both conditional means and rms of scalars of measurements and computational results. Another application of ODT was made in present work to verify the capability of prediction of autoignition (self-ignition) of one of free shear layer flow -- jet diffusion flow. Different range of pressure and Reynolds number are set to identify the effects of turbulence intensity and mixture properties on the self-ignition chemistry. Autoignition delay time was studied based on these different conditions. At the same time the ability of the prediction of mixture temperature and species mass fraction profile were tested. A principle numerical result is expected and discussed. Conditional pdf and progress variable were used to analyze the computational result of ODT. Analysis was focus on the temperature growth and the mass fraction distribution of intermediate species and product.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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Author: Maria G. da Graca Carvalho
Publisher: CRC Press
ISBN: 1000717356
Category : Science
Languages : en
Pages : 864
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Book Description
Selected Papers from the Proceedings of the First International Conference Vilamoura, Portugal, September 3-6, 1991. The 54 papers in this volume establish the first in a series of biannual benchmarks for technologies that maximize energy conversion while minimizing undesirable emissions. Covering the entire range of industrial and transport combustion as well as strategies for energy R&D, these contributions will be useful to mechanical and chemical engineers in academia and industry, and technical personnel in military, energy and environmental agencies of government. Among topics covered in the book are: strategies: now and in the future; pulverised coal combustion; oil combustion; gas combustion; gas fired systems, biomass combustion; fluidized bed combustion; incinerators; internal combustion; engines and reaction kinetics.
Author: R. Borghi
Publisher: Springer Science & Business Media
ISBN: 146139631X
Category : Science
Languages : en
Pages : 958
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Book Description
Turbulent reactive flows are of common occurrance in combustion engineering, chemical reactor technology and various types of engines producing power and thrust utilizing chemical and nuclear fuels. Pollutant formation and dispersion in the atmospheric environment and in rivers, lakes and ocean also involve interactions between turbulence, chemical reactivity and heat and mass transfer processes. Considerable advances have occurred over the past twenty years in the understanding, analysis, measurement, prediction and control of turbulent reactive flows. Two main contributors to such advances are improvements in instrumentation and spectacular growth in computation: hardware, sciences and skills and data processing software, each leading to developments in others. Turbulence presents several features that are situation-specific. Both for that reason and a number of others, it is yet difficult to visualize a so-called solution of the turbulence problem or even a generalized approach to the problem. It appears that recognition of patterns and structures in turbulent flow and their study based on considerations of stability, interactions, chaos and fractal character may be opening up an avenue of research that may be leading to a generalized approach to classification and analysis and, possibly, prediction of specific processes in the flowfield. Predictions for engineering use, on the other hand, can be foreseen for sometime to come to depend upon modeling of selected features of turbulence at various levels of sophistication dictated by perceived need and available capability.
Author: John Henry Kent
Publisher:
ISBN:
Category : Flame
Languages : en
Pages : 548
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Book Description
