Diagnostic Implications Of The Reactivity Of Fluorescence Tracers
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Total Pages | : 28 |
Release | : 2008 |
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Download Diagnostic Implications of the Reactivity of Fluorescence Tracers Book in PDF, Epub and Kindle
Measurements of fuel concentration distributions with planar laser induced fluorescence of tracer molecules that are added to a base fuel are commonly used in combustion research and development. It usually is assumed that the tracer concentration follows the parent fuel concentration if physical properties such as those determining evaporation are matched. As an example to address this general issue a computational study of combustion of biacetyl/iso-octane mixtures was performed to investigate how well the concentration of biacetyl represents the concentration of iso-octane. For premixed mixture conditions with flame propagation the spatial concentration profiles of the two species in the flame front are separated by 110 [mu]m at 1 bar and by 11 [mu]m at 10 bar. For practical applications this spatial separation is insignificantly small. However, for conditions that mimic ignition and combustion in diesel and HCCI-like operation the differences in tracer and fuel concentration can be significant, exceeding hundreds of percent. At low initial temperature biacetyl was found to be more stable whereas at higher temperature (>1000K) iso-octane is more stable. Similar findings were obtained for a multi-component fuel comprised of iso-octane, n-heptane, methylcyclohexane, and toluene. It may be assumed that similar differences can exist for other tracer/fuel combinations. Caution has therefore to be applied when interpreting PLIF measurements in homogeneous reaction conditions such as in HCCI engine studies.
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Publisher | : Elsevier |
Total Pages | : 1034 |
Release | : 2019-06-06 |
Genre | : Technology & Engineering |
ISBN | : 0444640886 |
Download Mathematical Modelling of Gas-Phase Complex Reaction Systems: Pyrolysis and Combustion Book in PDF, Epub and Kindle
Mathematical Modelling of Gas-Phase Complex Reaction Systems: Pyrolysis and Combustion, Volume 45, gives an overview of the different steps involved in the development and application of detailed kinetic mechanisms, mainly relating to pyrolysis and combustion processes. The book is divided into two parts that cover the chemistry and kinetic models and then the numerical and statistical methods. It offers a comprehensive coverage of the theory and tools needed, along with the steps necessary for practical and industrial applications. Details thermochemical properties and "ab initio" calculations of elementary reaction rates Details kinetic mechanisms of pyrolysis and combustion processes Explains experimental data for improving reaction models and for kinetic mechanisms assessment Describes surrogate fuels and molecular reconstruction of hydrocarbon liquid mixtures Describes pollutant formation in combustion systems Solves and validates the kinetic mechanisms using numerical and statistical methods Outlines optimal design of industrial burners and optimization and dynamic control of pyrolysis furnaces Outlines large eddy simulation of turbulent reacting flows
Author | : Hua Zhao |
Publisher | : SAE International |
Total Pages | : 373 |
Release | : 2012-07-30 |
Genre | : Technology & Engineering |
ISBN | : 0768057825 |
Download Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines Book in PDF, Epub and Kindle
The increasing concern about CO2 emissions and energy prices has led to new CO2 emission and fuel economy legislation being introduced in world regions served by the automotive industry. In response, automotive manufacturers and Tier-1 suppliers are developing a new generation of internal combustion (IC) engines with ultra-low emissions and high fuel efficiency. To further this development, a better understanding is needed of the combustion and pollutant formation processes in IC engines. As efficiency and emission abatement processes have reached points of diminishing returns, there is more of a need to make measurements inside the combustion chamber, where the combustion and pollutant formation processes take place. However, there is currently no good overview of how to make these measurements. Based on the author’s previous SAE book, Engine Combustion Instrumentation and Diagnostics, this book focuses on laser-based optical techniques for combustion flows and in-cylinder measurements. Included are new chapters on optical engines and optical equipment, case studies, and an updated description of each technique. The purpose of this book is to provide, in one publication, an introduction to experimental techniques that are best suited for in-cylinder engine combustion measurements. It provides sufficient details for readers to set up and apply these techniques to IC engines and combustion flows.
Author | : Mark Preul |
Publisher | : Frontiers Media SA |
Total Pages | : 368 |
Release | : 2021-06-04 |
Genre | : Medical |
ISBN | : 2889668568 |
Download Applications of Fluorescence in Surgery and Interventional Diagnostics Book in PDF, Epub and Kindle
Author | : Aulia Muhammad Taufiq Nasution |
Publisher | : Cuvillier Verlag |
Total Pages | : 156 |
Release | : 2006 |
Genre | : |
ISBN | : 3867270651 |
Download Formaldehyde as a Tracer to Examine Mixture - Formation in Spark Ignited Engines Book in PDF, Epub and Kindle
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Total Pages | : 658 |
Release | : 1976 |
Genre | : Nuclear energy |
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Download Nuclear Science Abstracts Book in PDF, Epub and Kindle
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Total Pages | : 1552 |
Release | : 1965 |
Genre | : Medicine |
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Download Cumulated Index Medicus Book in PDF, Epub and Kindle
Author | : Beatriz G. Perez-Nievas |
Publisher | : Frontiers Media SA |
Total Pages | : 128 |
Release | : 2019-03-20 |
Genre | : |
ISBN | : 2889457648 |
Download The Role of Glia in Alzheimer's Disease Book in PDF, Epub and Kindle
We believe that the role of glia is the next frontier to be explored in Alzheimer’s disease research. This eBook is an update on both the current knowledge of astrocytes and microglia involvement in Alzheimer’s disease pathophysiology, and some of the techniques available to study them.
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Total Pages | : 460 |
Release | : 1991-03 |
Genre | : Agriculture |
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Download Bibliography of Agriculture Book in PDF, Epub and Kindle
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Total Pages | : 1896 |
Release | : 2002-07 |
Genre | : Medicine |
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Download Index Medicus Book in PDF, Epub and Kindle
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.