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Fuel Injection Spray And Combustion Chamber Wall Impingement In Large Bore Industrial Diesel Engines
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Book Synopsis Fuel Injection Spray and Combustion Chamber Wall Impingement in Large Bore Industrial Diesel Engines by : Robert Paul Borthwick
Download or read book Fuel Injection Spray and Combustion Chamber Wall Impingement in Large Bore Industrial Diesel Engines written by Robert Paul Borthwick and published by . This book was released on 2000 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combustion and Spray Visualization in a High-speed Direct-injected Engine by : Aakash Puntambekar
Download or read book Combustion and Spray Visualization in a High-speed Direct-injected Engine written by Aakash Puntambekar and published by . This book was released on 2009 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spray Characteristics of an Impinged Diesel Fuel Spray by : Scott P. Mislevy
Download or read book Spray Characteristics of an Impinged Diesel Fuel Spray written by Scott P. Mislevy and published by . This book was released on 2001 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Impinging Diesel Sprays with a Reduced-order Model and Gas Jet Experiments by : Daniel Ruth
Download or read book Characterization of Impinging Diesel Sprays with a Reduced-order Model and Gas Jet Experiments written by Daniel Ruth and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The mixing of a diesel spray with in-cylinder gases is driven by both turbulent mixing during the free-jet penetration phase and by mixing during its impingement on surfaces such as the piston bowl. Current reduced order models, and many experiments, focus solely on the free-jet penetration phase, although jet-wall interaction occurs during a significant portion of the duration of a fuel injection in both small-bore and large-bore engines. A control volume-based model for the spreading of an impinging spray along a flat wall is presented as a first step towards capturing key jet processes during the impingement phase of fuel injection. Schlieren measurements of impinging gaseous jets are used to evaluate the model, and a strategy of accounting for the varying density in gas jet injections is introduced. The model, coupled with the free jet model of Musculus and Kattke, is shown to predict published impinging diesel data as well. The model is then used to compare global entrainment effects at various diesel conditions, providing a means for evaluating the effects of combustion parameters on entrainment with more realistic engine geometries. Finally, mixing phenomena relating to advanced combustion techniques, including rate-shaping and the use of multiple injections, are investigated with the model.
Book Synopsis A Multi-zone Direct-injection Diesel Spray Combustion Model for Cycle Simulation Studies of Large-bore Engine Performance and Emissions by : Dohoy Jung
Download or read book A Multi-zone Direct-injection Diesel Spray Combustion Model for Cycle Simulation Studies of Large-bore Engine Performance and Emissions written by Dohoy Jung and published by . This book was released on 2001 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Diesel Ignition and Combustion Modeling with Comparisons to In-cylinder Flame Imaging by : Song-Charng Kong
Download or read book Diesel Ignition and Combustion Modeling with Comparisons to In-cylinder Flame Imaging written by Song-Charng Kong and published by . This book was released on 1994 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Impinged Diesel Spray Hydrodynamics and Heat Transfer by : Richard A. Booth
Download or read book Investigation of Impinged Diesel Spray Hydrodynamics and Heat Transfer written by Richard A. Booth and published by . This book was released on 1994 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Experiments in Connexion with the Injection and Combustion of Fuel-oil in Diesel Engines by : Charles John Hawkes
Download or read book Some Experiments in Connexion with the Injection and Combustion of Fuel-oil in Diesel Engines written by Charles John Hawkes and published by . This book was released on 1921 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Spray Impingement Theory of Ignition Delay in Small Swirl-chamber Diesel Engines by : E. J. Ilmari Kurki-Suonio
Download or read book The Spray Impingement Theory of Ignition Delay in Small Swirl-chamber Diesel Engines written by E. J. Ilmari Kurki-Suonio and published by . This book was released on 1965 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigations on Fuel Spray and Impingement for Gasoline Direct Injection Engines by : Hongliang Luo
Download or read book Experimental Investigations on Fuel Spray and Impingement for Gasoline Direct Injection Engines written by Hongliang Luo and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spray-wall impingement is a widespread phenomenon applied in many fields, including spray-wall cooling system, spray coating process and fuel spray and atomization in internal combustion engines. In direct-injection spark ignition (DISI), it is difficult to avoid the fuel film on the piston head and cylinder surfaces. The wet wall caused by impingement affects the air-fuel mixture formation process, which finally influence the subsequent combustion efficiency and performance. Therefore, the fuel spray and impingement under gasoline engine-like conditions were characterized. Mie scattering technique was applied to visualize the spray evolution and impingement processes in a high-pressure and high-temperature constant chamber. Meanwhile, the adhered fuel film on the wall was measured by refractive index matching (RIM) under non-evaporation and evaporation conditions considering the effects of different injection pressures, ambient pressures and ambient temperatures. Additionally, the fuel film formation and evaporation evolution models were proposed with the help of these mechanisms.
Download or read book Diesel Engine Combustion written by and published by . This book was released on 1970 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fuel Injection in Automotive Engineering by : Kazimierz Lejda
Download or read book Fuel Injection in Automotive Engineering written by Kazimierz Lejda and published by BoD – Books on Demand. This book was released on 2012-04-20 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main topic of "Fuel injection in automotive engineering" book is fundamental process that determines the development of internal combustion engines and performances of automotive vehicles. The book collects original works focused on up-to-date issues relevant to improving injection phenomena per se and injection systems as the engine key components.
Book Synopsis HIGH INJECTION PRESSURE IMPINGING DIESEL SPRAY CHARACTERISTICS AND SUBSEQUENT SOOT FORMATION IN REACTING CONDITIONS by :
Download or read book HIGH INJECTION PRESSURE IMPINGING DIESEL SPRAY CHARACTERISTICS AND SUBSEQUENT SOOT FORMATION IN REACTING CONDITIONS written by and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : The spray impingement in diesel engines attracts the attention of engine researchers in recent decades as the physical size of the engine is reduced. Due to the spray impingement, the atomization, vaporizing and air-fuel mixing quality is altered compared to a free spray. For emission control, soot is one of the major particulate emissions from diesel combustion and its formation in an impinged spray is worthy to be investigated. Firstly, to understand the impinged spray characteristics, the experiments for both non-vaporizing and reacting conditions were conducted in a constant volume combustion vessel. The impinged spray was captured by a high-speed camera and the instantaneous spray propagation distance and rate were obtained. For a better understanding, the microscopic behavior of the spray propagation, the curvature of the impinged spray was calculated and a relationship between local fuel distribution and soot formation was found. After that, the apparent heat release rate from an impinge spray combustion and the heat flux through the impingement were analyzed. The apparent heat release rate was obtained by the internal chamber pressure and the heat flux was measured by heat flux probes embedded in the impinging plate. Then, the soot formation of an impinged spray was both studied from experiments and simulations. In the experiments, the natural luminosity mainly due to the incandescence of soot particles was captured by the high-speed camera. A computational fluid dynamics (CFD) approach was adopted to quantitatively study the soot formation in terms of absolute soot mass and soot mass fractions in the vicinity of the wall. In the last, the film formation under different ambient temperatures, impinging distances, and oxygen concentration was investigated in terms of film area and thickness. The impact of film formation on the soot outcomes was then investigated by comparing the rate of film vaporization and soot formation. To summarize, the main goal of this dissertation is going to benefit the understanding of the impinged spray in reacting diesel-relevant engine conditions. From experiments, a global view of soot formation in an impinged spray was analyzed and the mechanism of soot formation was further revealed by the CFD simulations.
Book Synopsis Fuel Injection and Controls for Internal Combustion Engines by : Paul G. Burman
Download or read book Fuel Injection and Controls for Internal Combustion Engines written by Paul G. Burman and published by . This book was released on 1962 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beyond the Spray: Delving Into Diesel Engine Wall Interaction by : Nicholas
Download or read book Beyond the Spray: Delving Into Diesel Engine Wall Interaction written by Nicholas and published by Tredition Gmbh. This book was released on 2024-05-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diesel engines power our world, but for a cleaner future, we need to look beyond the fuel spray itself. The hidden battleground lies in the interaction between the spray and the engine walls. Here, the fuel's fate is sealed - efficient combustion for power, or incomplete burning leading to harmful emissions. Ideally, the spray breaks up into tiny droplets that readily vaporize on contact with the walls. This creates a well-mixed air-fuel mixture for clean burning. However, forceful impacts can leave a fuel film, hindering vaporization and causing problems. The key to sustainable diesels lies in optimizing this wall interaction. Engineers are delving deeper, not just focusing on the spray itself, but also on injector design, injection pressure, and even the wall materials and temperatures. By controlling these factors, they can promote better mixing and minimize fuel wall impingement, leading to cleaner and more efficient combustion. This goes beyond just the spray - it's about understanding the delicate dance between fuel and walls, paving the way for a greener future for diesel engines.
Book Synopsis Automotive Spark-Ignited Direct-Injection Gasoline Engines by : F. Zhao
Download or read book Automotive Spark-Ignited Direct-Injection Gasoline Engines written by F. Zhao and published by Elsevier. This book was released on 2000-02-08 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process of fuel injection, spray atomization and vaporization, charge cooling, mixture preparation and the control of in-cylinder air motion are all being actively researched and this work is reviewed in detail and analyzed. The new technologies such as high-pressure, common-rail, gasoline injection systems and swirl-atomizing gasoline fuel injections are discussed in detail, as these technologies, along with computer control capabilities, have enabled the current new examination of an old objective; the direct-injection, stratified-charge (DISC), gasoline engine. The prior work on DISC engines that is relevant to current GDI engine development is also reviewed and discussed. The fuel economy and emission data for actual engine configurations have been obtained and assembled for all of the available GDI literature, and are reviewed and discussed in detail. The types of GDI engines are arranged in four classifications of decreasing complexity, and the advantages and disadvantages of each class are noted and explained. Emphasis is placed upon consensus trends and conclusions that are evident when taken as a whole; thus the GDI researcher is informed regarding the degree to which engine volumetric efficiency and compression ratio can be increased under optimized conditions, and as to the extent to which unburned hydrocarbon (UBHC), NOx and particulate emissions can be minimized for specific combustion strategies. The critical area of GDI fuel injector deposits and the associated effect on spray geometry and engine performance degradation are reviewed, and important system guidelines for minimizing deposition rates and deposit effects are presented. The capabilities and limitations of emission control techniques and after treatment hardware are reviewed in depth, and a compilation and discussion of areas of consensus on attaining European, Japanese and North American emission standards presented. All known research, prototype and production GDI engines worldwide are reviewed as to performance, emissions and fuel economy advantages, and for areas requiring further development. The engine schematics, control diagrams and specifications are compiled, and the emission control strategies are illustrated and discussed. The influence of lean-NOx catalysts on the development of late-injection, stratified-charge GDI engines is reviewed, and the relative merits of lean-burn, homogeneous, direct-injection engines as an option requiring less control complexity are analyzed.
