Laser Diagnostics And Optical Measurement Techniques In Internal Combustion Engines PDF Download
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Author | : Hua Zhao |
Publisher | : SAE International |
Total Pages | : 373 |
Release | : 2012-07-30 |
Genre | : Technology & Engineering |
ISBN | : 0768077664 |
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.
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Release | : 19?? |
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Download Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines Book in PDF, ePub and Kindle
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 | : Akhilendra Pratap Singh |
Publisher | : Springer Nature |
Total Pages | : 163 |
Release | : 2019-10-11 |
Genre | : Technology & Engineering |
ISBN | : 9811503354 |
Download Simulations and Optical Diagnostics for Internal Combustion Engines Book in PDF, ePub and Kindle
This book focuses on combustion simulations and optical diagnostics techniques, which are currently used in internal combustion engines. The book covers a variety of simulation techniques, including in-cylinder combustion, numerical investigations of fuel spray, and effects of different fuels and engine technologies. The book includes chapters focused on alternative fuels such as DEE, biomass, alcohols, etc. It provides valuable information about alternative fuel utilization in IC engines. Use of combustion simulations and optical techniques in advanced techniques such as microwave-assisted plasma ignition, laser ignition, etc. are few other important aspects of this book. The book will serve as a valuable resource for academic researchers and professional automotive engineers alike.
Author | : Alexios Matamis |
Publisher | : |
Total Pages | : |
Release | : 2021 |
Genre | : |
ISBN | : 9789178958795 |
Download Optical and Lasers Diagnostics Book in PDF, ePub and Kindle
Optical and laser diagnostics is a field where optical techniques are developed that offer remote, non-intrusive measurements in order to characterise a system. Imaging is a big part of this field and the versatility it offers makes it a great tool in the hands of researchers and in practical applications. In this thesis, multiple applications of imaging are presented, together with possible data processing routines that are used to obtain qualitative and quantitative information. Intuitive ways of presenting big datasets along with trends and variations in them are shown, for both, time-resolved and single-shot measurements. Efforts to enhance the efficiency of internal combustion engines are discussed and a study on the interaction of spray jets and prevailing combustion in light-duty diesel engines is shown. A thorough optical investigation of methanol combustion in compression ignition engines is presented, along with a characterisation of the injection process and fuel distribution for methanol inside a heavy-duty optical engine. The potential of methanol as a renewable fuel and energy carrier is discussed in a wider perspective, together with demonstrating the benefits of such a propulsion system. In addition, a study of exhaled respiratory particles is presented, in an attempt to characterise the potential for transmission of diseases through the respiratory tract. This consisted of an evaluation of everyday tasks such as talking and singing, which is not commonly found in the literature as most studies are focused on sneezing and coughing. Finally, a novel approach on Background Oriented Schlieren, known as Laser Speckle-based BOS, is presented together with some preliminary results. There is great potential for this technique to be used in combustion engine diagnostics, as it requires minimal optical access to create the pattern and the sensitivity of the setup relies less on the distance of the subject to the background pattern.
Author | : Hua Zhao |
Publisher | : SAE International |
Total Pages | : 854 |
Release | : 2001-01-30 |
Genre | : Technology & Engineering |
ISBN | : 0768040345 |
Download Engine Combustion Instrumentation and Diagnostics Book in PDF, ePub and Kindle
This book provides a complete description of instrumentation and in-cylinder measurement techniques for internal combustion engines. Written primarily for researchers and engineers involved in advanced research and development of internal combustion engines, the book provides an introduction to the instrumentation and experimental techniques, with particular emphasis on diagnostic techniques for in-cylinder measurements.
Author | : C Arcoumanis |
Publisher | : CRC Press |
Total Pages | : 266 |
Release | : 2016-04-19 |
Genre | : Science |
ISBN | : 1482263181 |
Download Optical and Laser Diagnostics Book in PDF, ePub and Kindle
From the automotive industry to blood flow monitoring, optical techniques and laser diagnostics are becoming integral parts in engineering and medical instrumentation. Written by leading global experts from industry, academic groups, and laboratories, this volume provides an international perspective on both existing applications and leading-edge r
Author | : Martin Weinrotter |
Publisher | : GRIN Verlag |
Total Pages | : 183 |
Release | : 2011-03-31 |
Genre | : Technology & Engineering |
ISBN | : 3640881346 |
Download Laser Ignition of Internal Combustion Engines Book in PDF, ePub and Kindle
Doctoral Thesis / Dissertation from the year 2006 in the subject Electrotechnology, grade: 1, mit Ausgezeichnung bestanden, Vienna University of Technology (Insitut für Photonik), language: English, abstract: In this PhD thesis different fundamental aspects and the practical usability of a laser ignition system as a new, innovative and alternative ignition approach for internal combustion engines were investigated in great detail mainly experimentally. Ignition experiments in combustion chambers under high pressures and elevated temperatures have been conducted. Different fuels were investigated. Also the minimum breakdown energy in dependence of the initial temperature and pressure with the help of an aspheric lens with a high numerical aperture was studied. High-speed Schlieren diagnostics have been conducted in the combustion chamber. The different stages like the ignition plasma within the first nanoseconds via the shock wave generation to the expanding flame kernel were investigated. With the help of multi-point ignition the combustion duration could be reduced significantly. The controlled start of auto-ignition of n-heptane-air mixtures by resonant absorption of Er,Cr:YSGG laser radiation at 2.78 μm by additionally introduced water has been proven in combustion chamber experiments as a completely new idea. Beside experiments in the combustion chambers and long term tests under atmospheric conditions, various tests in SI engines up to 200 h, have been made. Different sources of contamination of the window surface have been identified. First experiments with a longitudinally diode-pumped, fiber-coupled and passively Q-switched solid-state laser α-prototype system with maximum pulse energy of 1.5 mJ at about 1.5 ns pulse duration were performed which allowed to ignite the engine successfully over a test period of 100 h. In cooperation with Lund University in Sweden, experiments have been performed on another engine test bed running in HCCI mode revealing the laser spark to be able to stimulate the auto-ignition process and to trigger the onset of combustion. In another international cooperation conducted with the Southwest Research Institute in Texas, U.S.A., the potential of laser ignition in combination with the so called HEDGE concept was studied. As a final direction of the work, first calculations and experiments of a β- prototype ignition laser of an own design have been conducted. The concept of a longitudinally diode-pumped, fiber-coupled and passively Q-switched solid-state laser was chosen as the most promising. Emitted pulse energy of 2 mJ within around 1 ns pulse duration was achieved easily allowing generating a laser-induced breakdown in air.
Author | : Alan C. Eckbreth |
Publisher | : CRC Press |
Total Pages | : 630 |
Release | : 2022-01-27 |
Genre | : Technology & Engineering |
ISBN | : 1000124622 |
Download Laser Diagnostics for Combustion Temperature and Species Book in PDF, ePub and Kindle
This book examines the variety of potential laser diagnostic techniques and presents a considerable theoretical foundation elucidating physics relevant to the laser diagnostics. It explains the Raman-based approaches for major species and temperature measurements.
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Publisher | : |
Total Pages | : 9 |
Release | : 2001 |
Genre | : |
ISBN | : |
Download 2001 Gordon Research Conference on Laser Diagnostics in Combustion Book in PDF, ePub and Kindle
The Gordon Research Conference on Laser Diagnostics was held at Mount Holyoke College, South Hadley MA on 1-6 July 2001. The conference included 130 participants. Research discussed at the conference included quantitative measurements to test combustion chemistry, picosecond measurements to quantify collisional effects, infrared diagnostics, velocity measurements, measurement techniques for fuel distributions, diagnostics to understand turbulent flow, innovative optical measurement techniques, practical measurements in harsh engine environments, and quantitative measurements to understand soot formation.