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Experimental Study On Spray And Combustion Characteristics Of Diesel Like Fuels
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Book Synopsis Experimental Study on Spray and Combustion Characteristics of Diesel-like Fuels by : Yanfei Li
Download or read book Experimental Study on Spray and Combustion Characteristics of Diesel-like Fuels written by Yanfei Li and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With increasing concern on the dwindling of the fossil fuel reserve and climate change, more and more effort has been focused on seeking green fuel to replace fossil fuel and mitigating the emissions of greenhouse gas (GHG). Biodiesel has attracted much attention for its sustainability, lower emissions of HC, PM and CO, and the diverse feedstock. In this study, diesel/diesel-like fuels were experimentally studied in terms of spray and combustion characteristics.
Book Synopsis Spray and Combustion Studies of High Reactivity Gasoline in Comparison to Diesel Under Advanced Compression Ignition Engine Conditions by :
Download or read book Spray and Combustion Studies of High Reactivity Gasoline in Comparison to Diesel Under Advanced Compression Ignition Engine Conditions written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Gasoline compression ignition (GCI) technology has demonstrated great potentials in improving fuel economy and reducing engine-out NOx and particulate matter emissions. Development and application of the GCI technology on multi-cylinder engines require both fundamental understandings of the gasoline spray combustion characteristics and accurate numerical tools. Due to the large differences in the thermo-physical and the chemical properties between gasoline and diesel range fuels, differences in the spray combustion characteristics between gasoline and diesel is expected. Reports on the gasoline spray combustion characteristics under conditions relevant to medium to heavy-duty engines are scarce and this dissertation aims to fill in this knowledge gap. Experimental work were performed in a constant volume combustion vessel. Non-reacting sprays under low and high ambient charge gas temperatures and reacting sprays were performed using a high reactivity gasoline (research octane number 60) and ultra-low sulfur diesel. The experimental work were designed to isolate the effect of several important fuel properties on spray and combustion. The experimentally investigated spray combustion characteristics include spray dispersion, vapor penetration, liquid penetration, ignition, flame lift-off, and natural luminosity. These experiments provided evidence behind the lower particulate matter emissions benefit of gasoline. A transient spray cone angle correlation was developed based on the experimental measurements. The correlation was developed to improve the description of fuel-air mixing in computational fluid dynamic (CFD) simulations. The correlation was integrated with CFD simulations and the benefits of using a transient spray cone angle profile were demonstrated. Reacting spray CFD simulations were performed and validated extensively against the experimental spray characteristics on ignition, flame lift-off, soot natural luminosity, and external published local soot concentration measurements. The CFD simulations provided additional understanding of the soot emission processes to complement experimental measurements.
Book Synopsis Atomization and Sprays by : Arthur H. Lefebvre
Download or read book Atomization and Sprays written by Arthur H. Lefebvre and published by CRC Press. This book was released on 2017-03-27 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this long-time bestseller provides a framework for designing and understanding sprays for a wide array of engineering applications. The text contains correlations and design tools that can be easily understood and used in relating the design of atomizers to the resulting spray behavior. Written to be accessible to readers with a modest technical background, the emphasis is on application rather than in-depth theory. Numerous examples are provided to serve as starting points for using the information in the book. Overall, this is a thoroughly updated edition that still retains the practical focus and readability of the original work by Arthur Lefebvre.
Book Synopsis Ignition Delay at Various High Pressures. An Experimental Study by : Ritu Gaur
Download or read book Ignition Delay at Various High Pressures. An Experimental Study written by Ritu Gaur and published by . This book was released on 2019-10-16 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (postgraduate) from the year 2019 in the subject Engineering - Chemical Engineering, course: M.TECH, language: English, abstract: This work is an experimental study for the measurement of ignition delay characteristics of burning fuel sprays in cylindrical combustion chambers. It is carried out on hot air and high pressure. The objective of the study is to investigation the effect of hot air temperature and a well as high pressure on ignition delay of diesel fuel sprays. The effect of blending of n-Pentane with pure diesel was investigated. An experimental set up was design for this purpose with the emphasis on optical method for measurement of ignition delay at various pressures. The results presented here show that ignition delay of diesel fuel spray decreases with increase in the temperature and pressure of hot air. Results also show the effect of methyl group being more dominant at low ignition temperatures and that of alkyl group being more dominant at higher temperature. Blending of n-pentane with diesel fuel, increase its ignition delay at low ignition temperatures. However, as the concentration of blending fuel was increased beyond 30%, the ignition temperature increase. Ignition temperature for 40% pentane blends is much higher that the pure diesel.
Book Synopsis The Role of Porous Media in Homogenizationof Diesel Fuel Spray Combustion by : Seyed Navid Shahangian
Download or read book The Role of Porous Media in Homogenizationof Diesel Fuel Spray Combustion written by Seyed Navid Shahangian and published by . This book was released on 2015 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion homogenization of a fuel spray utilizing porous media (PM) has only recently been proposed and can be regarded as an untouched area of research. In this PhD program, the fundamental role of porous ceramic media on homogenization process of high pressure diesel fuel spray will be evaluated in diesel engine-like condition. In the study of high pressure diesel fuel spray combustion in presence of porous media, two main questions can be posed; what is the effect of porous media on fuel and air mixing process? How can porous media homogenize the diesel fuel spray combustion process? To answer these questions, cold (non-evaporating spray) and hot (combusting spray) experiments were conducted in a constant-volume chamber. Through the application of ultra-high speed imaging (UHSI) technique for cold flow experiment and developed image processing techniques, new insight into the transient nature of the fuel spray in different phases of spray interaction with a porous medium was gained. Besides developing a code for investigating the macroscopic characteristic parameters of the spray, a code was also developed to process the images for evaluating the probability density function (PDF) of the light intensity. Through PDF analysis, a discernible improvement of multijet dispersion and fuel atomization at higher chamber pressures in the last phase of spray interaction with the porous medium was achieved, irrespective of the injection pressure. This was interpreted as having a higher chance of uniform fuel distribution and a well homogenized mixture preparation for the combustion process, the first requirement for combustion homogenization, in both conventional as well as new diesel engine combustion concepts such as low temperature combustion (LTC). The combustion experiments were then conducted to shed light on the combustion characteristics of diesel spray in the presence of a porous medium with specific emphasis on combustion visualization and heat release analysis of the burning spray. Combustion imaging results showed the validity of the previous hypothesis gained from PDF analysis of cold flow results by showing the rapid development of homogenous combustion in the last phase of fuel interaction with the PM. Similar to the results of LTC combustion with retarded injection timing, a longer ignition delay, with a flatter and wider heat release rate pattern, compared to conventional diesel combustion, was observed in this study indicating the potential of PM assisted combustion in simultaneous reductions in soot and NOx emissions. Although more extensive experimentation will be required to determine performance over a wider range of conditions, these results suggest that porous media could be used to promote a distributed fuel air mixture resulting in slower, but more homogeneous heat release within the cylinder of an engine. The thesis provides detailed information for the experimental methodology developed in the Laboratory for Turbulence Research in Aerospace and Combustion (LTRAC) at Monash University.
Book Synopsis The Spectroscopy of Flames by : A. Gaydon
Download or read book The Spectroscopy of Flames written by A. Gaydon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combustion for Power Generation and Transportation by : Avinash Kumar Agarwal
Download or read book Combustion for Power Generation and Transportation written by Avinash Kumar Agarwal and published by Springer. This book was released on 2017-01-20 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research monograph presents both fundamental science and applied innovations on several key and emerging technologies involving fossil and alternate fuel utilization in power and transport sectors from renowned experts in the field. Some of the topics covered include: autoignition in laminar and turbulent nonpremixed flames; Langevin simulation of turbulent combustion; lean blowout (LBO) prediction through symbolic time series analysis; lasers and optical diagnostics for next generation IC engine development; exergy destruction study on small DI diesel engine; and gasoline direct injection. The book includes a chapter on carbon sequestration and optimization of enhanced oil and gas recovery. The contents of this book will be useful to researchers and professionals working on all aspects on combustion.
Book Synopsis Combustion of Liquid Fuel Sprays by : Alan Williams
Download or read book Combustion of Liquid Fuel Sprays written by Alan Williams and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion of Liquid Fuel Sprays outlines the fundamentals of the combustion of sprays in a unified way which may be applied to any technological application. The book begins with a discussion of the general nature of spray combustion, the sources of liquid fuels used in spray combustion, biomass sources of liquid fuels, and the nature and properties of fuel oils. Subsequent chapters focus on the properties of sprays, the atomization of liquid fuels, and the theoretical modeling of the behavior of a spray flame in a combustion chamber. The nature and control of pollutants from spray combustion, the formation of deposits in oil-fired systems, and the combustion of sprays in furnaces and engines are elucidated as well. The text is intended for students undertaking courses or research in fuel, combustion, and energy studies.
Book Synopsis Experimental Study of Diesel Spray Characteristics and Atomization by : Chan-Teng Chang
Download or read book Experimental Study of Diesel Spray Characteristics and Atomization written by Chan-Teng Chang and published by . This book was released on 1997 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Green Diesel Engines by : Breda Kegl
Download or read book Green Diesel Engines written by Breda Kegl and published by Springer Science & Business Media. This book was released on 2013-10-19 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a focus on ecology, economy and engine performance, diesel engines are explored in relation to current research and developments. The prevalent trends in this development are outlined with particular focus on the most frequently used alternative fuels in diesel engines; the properties of various type of biodiesel and the concurrent improvement of diesel engine characteristics using numeric optimization alongside current investigation and research work in the field. Following of a short overview of engine control, aftertreatment and alternative fuels, Green Diesel Engine explores the effects of biodiesel usage on injection, fuel spray, combustion, and tribology characteristics, and engine performance. Additionally, optimization procedures of diesel engine characteristics are discussed using practical examples and each topic is corroborated and supported by current research and detailed illustrations. This thorough discussion provides a solid foundation in the current research but also a starting point for fresh ideas for engineers involved in developing/adjusting diesel engines for usage of alternative fuels, researchers in renewable energy, as well as to engineers, advanced undergraduates, and postgraduates.
Book Synopsis Numerical and Experimental Investigation of Water Introduction Into DI Diesel Engine Combustion by : Peter Eckert
Download or read book Numerical and Experimental Investigation of Water Introduction Into DI Diesel Engine Combustion written by Peter Eckert and published by Logos Verlag Berlin GmbH. This book was released on 2008 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Im vorliegenden Band 3/2008 berichtet Herr Eckert uber die Ergebnisse aus Untersuchungen zur Partikel- und Stickoxidminimierung bei Dieselmotoren durch Wassereinbringung. Das primare Ziel ist dabei die innermotorische Reduzierung der thermischen Stickoxidbildung. Es sind unterschiedliche Methoden der wassereinbringung in den dieselmotorischen Verbrennungsprozess moglich; beispielsweise die Einspritzung von Wasser in das Ansaugsystem, eine direkte Einspritzung von Wasser in den Brennraum sowie die Wassereinbringung mit Diesel- Wasser Emulsionen. Diese Massnahmen sind unter anderem bei dieselmotoren, die zumindest teilweise mit Schwerol betrieben werden, besonders interessant, da dort klassische Methoden zur Schadstoffreduktion, wie z.B. Abgasruckfuhrung oder Abgasnachbehandlung, nur mit erheblichem Aufwand eingesetzt werden konnen.
Author :P. A. Lakshminarayanan Publisher :Springer Science & Business Media ISBN 13 :904813885X Total Pages :313 pages Book Rating :4.0/5 (481 download)
Book Synopsis Modelling Diesel Combustion by : P. A. Lakshminarayanan
Download or read book Modelling Diesel Combustion written by P. A. Lakshminarayanan and published by Springer Science & Business Media. This book was released on 2010-03-03 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenomenology of Diesel Combustion and Modeling Diesel is the most efficient combustion engine today and it plays an important role in transport of goods and passengers on land and on high seas. The emissions must be controlled as stipulated by the society without sacrificing the legendary fuel economy of the diesel engines. These important drivers caused innovations in diesel engineering like re-entrant combustion chambers in the piston, lower swirl support and high pressure injection, in turn reducing the ignition delay and hence the nitric oxides. The limits on emissions are being continually reduced. The- fore, the required accuracy of the models to predict the emissions and efficiency of the engines is high. The phenomenological combustion models based on physical and chemical description of the processes in the engine are practical to describe diesel engine combustion and to carry out parametric studies. This is because the injection process, which can be relatively well predicted, has the dominant effect on mixture formation and subsequent course of combustion. The need for improving these models by incorporating new developments in engine designs is explained in Chapter 2. With “model based control programs” used in the Electronic Control Units of the engines, phenomenological models are assuming more importance now because the detailed CFD based models are too slow to be handled by the Electronic Control Units. Experimental work is necessary to develop the basic understanding of the pr- esses.
Book Synopsis Ergonomics for Improved Productivity by : Mohammad Muzammil
Download or read book Ergonomics for Improved Productivity written by Mohammad Muzammil and published by Springer Nature. This book was released on 2021-03-23 with total page 1025 pages. Available in PDF, EPUB and Kindle. Book excerpt: p="" This highly informative and carefully presented book focuses on the fields of ergonomics/human factors and discusses the future of the community vis-à-vis health problems, productivity, aging, etc. Ergonomic intercession must be seen in light of its effect on productivity because ergonomic solutions will improve productivity as the reduction of environmental stressors, awkward postures and efforts lead to a reduction in task execution time. The book provides promising evidence that the field of ergonomics continues to thrive and develop deeper insights into how work environments, products and systems can be developed to meet needs, demands and limitations of humans and how they can support productivity improvements. Some of the themes covered are anthropometry and workplace design, biomechanics and modelling in ergonomics, cognitive and environmental ergonomics, ergonomic intervention and productivity, ergonomics in transport, mining, agriculture and forestry, health systems, work physiology and sports ergonomics, etc. This book is beneficial to academicians, policymakers and the industry alike. ^
Book Synopsis An Experimental Study of High Injection Pressure Diesel Sprays by : Tzay-Fa Su
Download or read book An Experimental Study of High Injection Pressure Diesel Sprays written by Tzay-Fa Su and published by . This book was released on 1995 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Diesel Engines by : Klaus Mollenhauer
Download or read book Handbook of Diesel Engines written by Klaus Mollenhauer and published by Springer Science & Business Media. This book was released on 2010-06-22 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: This machine is destined to completely revolutionize cylinder diesel engine up through large low speed t- engine engineering and replace everything that exists. stroke diesel engines. An appendix lists the most (From Rudolf Diesel’s letter of October 2, 1892 to the important standards and regulations for diesel engines. publisher Julius Springer. ) Further development of diesel engines as economiz- Although Diesel’s stated goal has never been fully ing, clean, powerful and convenient drives for road and achievable of course, the diesel engine indeed revolu- nonroad use has proceeded quite dynamically in the tionized drive systems. This handbook documents the last twenty years in particular. In light of limited oil current state of diesel engine engineering and technol- reserves and the discussion of predicted climate ogy. The impetus to publish a Handbook of Diesel change, development work continues to concentrate Engines grew out of ruminations on Rudolf Diesel’s on reducing fuel consumption and utilizing alternative transformation of his idea for a rational heat engine fuels while keeping exhaust as clean as possible as well into reality more than 100 years ago. Once the patent as further increasing diesel engine power density and was filed in 1892 and work on his engine commenced enhancing operating performance.
Book Synopsis Gas Turbine Combustion by : Arthur H. Lefebvre
Download or read book Gas Turbine Combustion written by Arthur H. Lefebvre and published by CRC Press. This book was released on 2010-04-26 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the developments in gas turbine combustion technology that have occurred in the last decade, Gas Turbine Combustion: Alternative Fuels and Emissions, Third Edition provides an up-to-date design manual and research reference on the design, manufacture, and operation of gas turbine combustors in applications ranging from aeronautical to po
Book Synopsis Numerical Investigation on the Spray and Combustion Characteristics of Diesel with Oxygenated Fuel Additives by : Yicheng Chi
Download or read book Numerical Investigation on the Spray and Combustion Characteristics of Diesel with Oxygenated Fuel Additives written by Yicheng Chi and published by . This book was released on 2016 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
