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Single Pulse Planar Laser Induced Fluorescence Imaging Of Hydroxyl Radicals In A Spark Ignition Engine
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Book Synopsis Single Pulse Planar Laser Induced Fluorescence Imaging of Hydroxyl Radicals in a Spark Ignition Engine by : Ali Serpengüzel
Download or read book Single Pulse Planar Laser Induced Fluorescence Imaging of Hydroxyl Radicals in a Spark Ignition Engine written by Ali Serpengüzel and published by . This book was released on 1993 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines by : Hua Zhao
Download or read book Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines written by Hua Zhao and published by SAE International. This book was released on 2012-07-30 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Application of the Planar Laser Induced Fluorescence Imaging Technique of the Hydroxyl Radical in the Qualitative Investigation of Bunsen Burner Flames at Atmospheric Conditions by : Spyridon Simis
Download or read book Application of the Planar Laser Induced Fluorescence Imaging Technique of the Hydroxyl Radical in the Qualitative Investigation of Bunsen Burner Flames at Atmospheric Conditions written by Spyridon Simis and published by . This book was released on 2011 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applied Combustion Diagnostics by : KoHse-HoingHaus
Download or read book Applied Combustion Diagnostics written by KoHse-HoingHaus and published by Taylor & Francis US. This book was released on 2002-04-26 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: The editors have assembled a world-class group of contributors who address the questions the combustion diagnostic community faces. They are chemists who identify the species to be measured and the interfering substances that may be present; physicists, who push the limits of laser spectroscopy and laser devices and who conceive suitable measurement schemes; and engineers, who know combustion systems and processes. This book assists in providing guidance for the planning of combustion experiments, in judging research strategies and in conceiving new ideas for combustion research. It provides a snapshot of the available diagnostic methods and thier typical applications from the perspective of leading experts in the field.
Book Synopsis Planar Laser-induced Fluorescence Imaging of Flame Heat Release Rate by :
Download or read book Planar Laser-induced Fluorescence Imaging of Flame Heat Release Rate written by and published by . This book was released on 1997 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Local heat release rate represents one of the most interesting experimental observables in the study of unsteady reacting flows. The direct measure of burning or heat release rate as a field variable is not possible. Numerous experimental investigations have relied on inferring this type of information as well as flame front topology from indirect measures which are presumed to be correlated. A recent study has brought into question many of the commonly used flame front marker and burning rate diagnostics. This same study found that the concentration of formyl radical offers the best possibility for measuring flame burning rate. However, primarily due to low concentrations, the fluorescence signal level from formyl is too weak to employ this diagnostic for single-pulse measurements of turbulent reacting flows. In this paper the authors describe and demonstrate a new fluorescence-based reaction front imaging diagnostic suitable for single-shot applications. The measurement is based on taking the pixel-by-pixel product of OH and CH2O planar laser-induced fluorescence images to yield an image closely related to a reaction rate. The spectroscopic and collisional processes affecting the measured signals are discussed and the foundation of the diagnostic, as based on laminar and unsteady flame calculations, is presented. The authors report the results of applying this diagnostic to the study of a laminar premixed flame subject to an interaction with an isolated line-vortex pair.
Book Synopsis Reactions of Hydroxyl Radicals with Oxygenated Hydrocarbons in the Gas Phase: A Laser Photolysis/Laser-Induced Fluorescence Study by : Cornelie Bänsch
Download or read book Reactions of Hydroxyl Radicals with Oxygenated Hydrocarbons in the Gas Phase: A Laser Photolysis/Laser-Induced Fluorescence Study written by Cornelie Bänsch and published by Logos Verlag Berlin GmbH. This book was released on 2017 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydroxyl radicals (OH) play a key role in ignition processes and in the atmosphere. Thus, the detailed knowledge of the kinetics of OH reactions is crucial in combustion and atmospheric research. In this work, an experimental approach for time-resolved studies of OH radical reactions at high pressures with pulsed laser photolysis/laser-induced fluorescence was revised and the reactions of dimethyl ether, diethyl ether, and dimethoxymethane with OH radicals were investigated in detail. The results reveal a deeper insight into the reaction processes of ether compounds with OH in general, contributing to a better understanding of the combustion of different biofuels and fuel additives.
Book Synopsis Planar Laser Induced Fluorescence Imaging and Analysis with Ethanol Blended Fuels in a Direct Injection Spark Ignition Engine by : Quan Liu
Download or read book Planar Laser Induced Fluorescence Imaging and Analysis with Ethanol Blended Fuels in a Direct Injection Spark Ignition Engine written by Quan Liu and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Literature Abstracts by : Society of Automotive Engineers
Download or read book Technical Literature Abstracts written by Society of Automotive Engineers and published by . This book was released on 1994 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis UV Laser Spectroscopy Applied to In-cylinder Phenomena of Spark Ignition Engines by : Michael Knapp
Download or read book UV Laser Spectroscopy Applied to In-cylinder Phenomena of Spark Ignition Engines written by Michael Knapp and published by Cuvillier Verlag. This book was released on 1997 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Diagonal Excitation/observation Diagnostic Technique for Planar Laser-induced Fluorescence of the Methyne Radical in Diesel Engines by : Mark P. Musculus
Download or read book Development of a Diagonal Excitation/observation Diagnostic Technique for Planar Laser-induced Fluorescence of the Methyne Radical in Diesel Engines written by Mark P. Musculus and published by . This book was released on 1998 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Single Photon Planar Laser -induced Fluorescence Imaging of Vibrationally -excited Carbon Monoxide by : Robert Leiweke
Download or read book Single Photon Planar Laser -induced Fluorescence Imaging of Vibrationally -excited Carbon Monoxide written by Robert Leiweke and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Planar Laser-induced Fluorescence Measurements of the Hydroxyl Radical Concentration in an Acoustically Excited Dump Combustor by : Christopher P. Cadou
Download or read book Planar Laser-induced Fluorescence Measurements of the Hydroxyl Radical Concentration in an Acoustically Excited Dump Combustor written by Christopher P. Cadou and published by . This book was released on 1991 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantitative Planar Laser-induced Fluorescence Imaging of Radical Species in High Pressure Flames by : B. E. Battles
Download or read book Quantitative Planar Laser-induced Fluorescence Imaging of Radical Species in High Pressure Flames written by B. E. Battles and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of High Repetition Rate NO Planar Laser Induced Fluorescence Imaging by : Naibo Jiang
Download or read book Development of High Repetition Rate NO Planar Laser Induced Fluorescence Imaging written by Naibo Jiang and published by . This book was released on 2006 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This thesis has documented the development of a MHz repitition rate pulse burst laser system. Second harmonic and third harmonic efficiencies are improved by adding a Phase Conjugate Mirror to the system. Some high energy fundamental, second harmonic, and third harmonic burst sequences consisting of 1 - 12 pulses separated in time by between 4 and 12 microseconds are now routinely obtained. The reported burst envelopes are quite uniform. We have also demonstrated the ability to generate ultra-high frequency sequences of broadly wavelength tunable, high intensity laser pulses using a home built injection seeded Optical Parametric Oscillator (OPO), pumped by the second and third harmonic output of the pulse burst laser. Typical OPO output burst sequences consist of 6 - 10 pulses, separated in time by between 6 and 10 microseconds. With third harmonic pumping of the OPO system, we studied four conditions, two-crystal Singly Resonant OPO (SRO) cavity, three-crystal OPO cavity, single pass two-crystal Doubly Resonant OPO (DRO) cavity and double pass two-crystal OPO cavity. The double pass two-crystal OPO cavity gives the best operation in burst mode. For single pass OPO, the average total OPO conversion efficiency is approximately 25%. For double pass OPO, the average total OPO conversion efficiency is approximately 35%. We have also demonstrated injection seeding for OPO. The OPO output light linewidth is significantly narrowed. Some preliminary etalon traces are also reported. By mixing the OPO signal output at 622 nm with residual third harmonic at 355 nm, we obtained 226 nm burst sequences with average pulse energy of ~0.2 mJ. Injection seeding of the OPO increases the energy achieved by a factor of ~2. 226 nm burst sequences with reasonably uniform burst envelopes are reported. Using the system we have obtained, for the first time by any known optical method, Planar Laser Induced Fluorescence (PLIF) image sequences at ultrahigh (100kHz) frame rates, in particular NO PLIF image sequences, have been obtained in a Mach 2 jet.
Book Synopsis Annual Index/abstracts of SAE Technical Papers by :
Download or read book Annual Index/abstracts of SAE Technical Papers written by and published by . This book was released on 1993 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser-induced Fluorescence of the Hydroxyl Radical by : Zhongbin Yin
Download or read book Laser-induced Fluorescence of the Hydroxyl Radical written by Zhongbin Yin and published by . This book was released on 1993 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow and Combustion in Advanced Gas Turbine Combustors by : Johannes Janicka
Download or read book Flow and Combustion in Advanced Gas Turbine Combustors written by Johannes Janicka and published by Springer Science & Business Media. This book was released on 2012-10-29 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: With regard to both the environmental sustainability and operating efficiency demands, modern combustion research has to face two main objectives, the optimization of combustion efficiency and the reduction of pollutants. This book reports on the combustion research activities carried out within the Collaborative Research Center (SFB) 568 “Flow and Combustion in Future Gas Turbine Combustion Chambers” funded by the German Research Foundation (DFG). This aimed at designing a completely integrated modeling and numerical simulation of the occurring very complex, coupled and interacting physico-chemical processes, such as turbulent heat and mass transport, single or multi-phase flows phenomena, chemical reactions/combustion and radiation, able to support the development of advanced gas turbine chamber concepts
