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Author : Pin Lü
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)
Download or read book Investigation of Gasoline Partially Premixed Combustion in a Single Cylinder Optical Diesel Engine written by Pin Lü and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Magnus Lewander
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (12 download)
Download or read book Investigation and Comparison of Multi Cylinder Partially Premixed Combustion Characteristics for Diesel and Gasoline Fuels written by Magnus Lewander and published by . This book was released on 2011 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Premixed Fuel Preparation for Partially Premixed Combustion with a Low Octane Gasoline on a Light-Duty Multi-Cylinder Compression Ignition Engine written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Gasoline compression ignition concepts with the majority of the fuel being introduced early in the cycle are known as partially premixed combustion (PPC). Previous research on single- and multi-cylinder engines has shown that PPC has the potential for high thermal efficiency with low NOx and soot emissions. A variety of fuel injection strategies has been proposed in the literature. These injection strategies aim to create a partially stratified charge to simultaneously reduce NOx and soot emissions while maintaining some level of control over the combustion process through the fuel delivery system. The impact of the direct injection strategy to create a premixed charge of fuel and air has not previously been explored, and its impact on engine efficiency and emissions is not well understood. This paper explores the effect of sweeping the direct injected pilot timing from -91° to -324° ATDC, which is just after the exhaust valve closes for the engine used in this study. During the sweep, the pilot injection consistently contained 65% of the total fuel (based on command duration ratio), and the main injection timing was adjusted slightly to maintain combustion phasing near top dead center. A modern four cylinder, 1.9 L diesel engine with a variable geometry turbocharger, high pressure common rail injection system, wide included angle injectors, and variable swirl actuation was used in this study. The pistons were modified to an open bowl configuration suitable for highly premixed combustion modes. The stock diesel injection system was unmodified, and the gasoline fuel was doped with a lubricity additive to protect the high pressure fuel pump and the injectors. The study was conducted at a fixed speed/load condition of 2000 rpm and 4.0 bar brake mean effective pressure (BMEP). The pilot injection timing sweep was conducted at different intake manifold pressures, swirl levels, and fuel injection GTP-15-1067, Dempsey 2 pressures. The gasoline used in this study has relatively high fuel reactivity with a research octane number of 68. The results of this experimental campaign indicate that the highest brake thermal efficiency and lowest emissions are achieved simultaneously with the earliest pilot injection timings (i.e., during the intake stroke).
Author : Matthew Scott Von Ruden
Publisher :
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.:/5 (276 download)
Download or read book An Experimental Investigation of Lean/partially Premixed Combustion in a Diesel Engine written by Matthew Scott Von Ruden and published by . This book was released on 1992 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mahmoudreza Mirmohammadsadeghi
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (19 download)
Download or read book Investigation of Diesel-ethanol and Diesel-gasoline Dual Fuel Combustion in a Single Cylinder Optical Diesel Engine written by Mahmoudreza Mirmohammadsadeghi and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lianhao Yin
Publisher :
ISBN 13 :
Total Pages : 47 pages
Book Rating : 4.:/5 (1 download)
Download or read book Experimental Investigation and Control of Partially Premixed Combustion (PPC) Engine with Gasoline-like Fuel Towards a High Engine Efficiency written by Lianhao Yin and published by . This book was released on 2016 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gautam Kalghatgi
Publisher : Springer Nature
ISBN 13 : 9811687358
Total Pages : 339 pages
Book Rating : 4.8/5 (116 download)
Download or read book Gasoline Compression Ignition Technology written by Gautam Kalghatgi and published by Springer Nature. This book was released on 2022-01-17 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on gasoline compression ignition (GCI) which offers the prospect of engines with high efficiency and low exhaust emissions at a lower cost. A GCI engine is a compression ignition (CI) engine which is run on gasoline-like fuels (even on low-octane gasoline), making it significantly easier to control particulates and NOx but with high efficiency. The state of the art development to make GCI combustion feasible on practical vehicles is highlighted, e.g., on overcoming problems on cold start, high-pressure rise rates at high loads, transients, and HC and CO emissions. This book will be a useful guide to those in academia and industry.
Author : Kenneth Brezinsky
Publisher : Elsevier
ISBN 13 : 0323993109
Total Pages : 666 pages
Book Rating : 4.3/5 (239 download)
Download or read book Combustion Chemistry and the Carbon Neutral Future written by Kenneth Brezinsky and published by Elsevier. This book was released on 2023-02-16 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the demands for cleaner, more efficient, reduced and zero carbon emitting transportation increase, the traditional focus of Combustion Chemistry research is stretching and adapting to help provide solutions to these contemporary issues. Combustion Chemistry and the Carbon Neutral Future: What will the Next 25 Years of Research Require? presents a guide to current research in the field and an exploration of possible future steps as we move towards cleaner, greener and reduced carbon combustion chemistry. Beginning with a discussion of engine emissions and soot, the book goes on to discuss a range of alternative fuels, including hydrogen, ammonia, small alcohols and other bio-oxygenates, natural gas, syngas and synthesized hydrocarbon fuels. Methods for predicting and improving efficiency and sustainability, such as low temperature and catalytic combustion, chemical looping, supercritical fluid combustion, and diagnostic monitoring even at high pressure, are then explored. Some novel aspects of biomass derived aviation fuels and combustion synthesis are also covered. Combining the knowledge and experience of an interdisciplinary team of experts in the field, Combustion Chemistry and the Carbon Neutral Future: What will the Next 25 Years of Research Require? is an insightful guide to current and future focus areas for combustion chemistry researchers in line with the transition to greener, cleaner technologies. Provides insight on current developments in combustion chemistry as a tool for supporting a reduced-carbon future Reviews modeling and diagnostic tools, in addition to key approaches and alternative fuels Includes projections for the future from leaders in the field, pointing current and prospective researchers to potentially fruitful areas for exploration
Author : Adam James Weall
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (89 download)
Download or read book Characteristics of Partially-premixed Compression-ignition Combustion Using Diesel, Biodiesel and Gasoline in a Multi-cylinder Direct-injection Diesel Engine written by Adam James Weall and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.:/5 (917 download)
Download or read book Low Load Operation in a Light-duty Diesel Engine Using High Octane Fuels and Additives written by and published by . This book was released on 2014 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study focuses on multi-cylinder, light-duty engine operation at light load conditions while maintaining efficiency and emissions. As the same engine should be able to run at high load conditions as well, the choice of fuel and combustion strategy should support over a wide range of speed-load operation. This is achieved by utilizing partially premixed combustion [PPC] of gasoline, which is a combination of homogeneous mixture operation of the fully premixed charge and a direct injection, where the fuel is injected during or slightly before the combustion event, like in standard diesel combustion. The engine load in gasoline PPC operation is controlled by limiting the number of injections and injected fuel amount, whereas desirable combustion phasing is achieved by controlling the injection timing. The effect of injector included angle was also studied in the present work with the objective of operating at the lowest possible load in this type of combustion. As the fuel effects also significantly alter the combustion behavior due to changes in the auto-ignition characteristics, the current study focused on low load operation using various RON gasoline fuels in a multi-cylinder engine. The use of a 2-EthylHexyl Nitrate [EHN] cetane improver is also emphasized in this research for operation at light load conditions with lower octane fuels. By changing the amount of cetane improver in standard gasoline, it is possible to alter the octane number of the fuel and potentially resolve engine startability issues. A reaction kinetics model for EHN was developed and used to study HCCI operation in a light-duty, single-cylinder engine at light load conditions. 96 RON gasoline was used as the base fuel. The results indicate that the current EHN mechanism predicts combustion phasing and nitrogen oxides [NOx] and carbon-monoxide [CO] emission trends of available HCCI experiments fairly well. Direct injection engine experiments performed at the Argonne National Laboratory with 87 AKI gasoline and 0.4% by volume of EHN additive were also used to validate the newly developed EHN mechanism. An additive-PRF map was generated that provides information about the effective PRF number of mixtures of gasoline and EHN additive.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (862 download)
Download or read book Experimental Investigation of Gasoline Compression Ignition Combustion in a Light Duty Diesel Engine written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to increased ignition delay and volatility, low temperature combustion (LTC) research utilizing gasoline fuel has experienced recent interest [1-3]. These characteristics improve air-fuel mixing prior to ignition allowing for reduced emissions of nitrogen oxides (NOx) and soot (or particulate matter, PM). Computational fluid dynamics (CFD) results at the University of Wisconsin-Madison's Engine Research Center (Ra et al. [4, 5]) have validated these attributes and established baseline operating parameters for a gasoline compression ignition (GCI) concept in a light-duty diesel engine over a large load range (3-16 bar net IMEP). In addition to validating these computational results, subsequent experiments at the Engine Research Center utilizing a single cylinder research engine based on a GM 1.9-liter diesel engine have progressed fundamental understanding of gasoline autoignition processes, and established the capability of critical controlling input parameters to better control GCI operation. The focus of this thesis can be divided into three segments: 1) establishment of operating requirements in the low-load operating limit, including operation sensitivities with respect to inlet temperature, and the capabilities of injection strategy to minimize NOx emissions while maintaining good cycle-to-cycle combustion stability; 2) development of novel three-injection strategies to extend the high load limit; and 3) having developed fundamental understanding of gasoline autoignition kinetics, and how changes in physical processes (e.g. engine speed effects, inlet pressure variation, and air-fuel mixture processes) affects operation, develop operating strategies to maintain robust engine operation. Collectively, experimental results have demonstrated the ability of GCI strategies to operate over a large load-speed range (3 bar to 17.8 bar net IMEP and 1300-2500 RPM, respectively) with low emissions (NOx and PM less than 1 g/kg-FI and 0.2 g/kg-FI, respectively), and low fuel consumption (gross indicated fuel consumption
Author : Günter P. Merker
Publisher : Springer Science & Business Media
ISBN 13 : 3642140947
Total Pages : 660 pages
Book Rating : 4.6/5 (421 download)
Download or read book Combustion Engines Development written by Günter P. Merker and published by Springer Science & Business Media. This book was released on 2011-09-24 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion Engines Development nowadays is based on simulation, not only of the transient reaction of vehicles or of the complete driveshaft, but also of the highly unsteady processes in the carburation process and the combustion chamber of an engine. Different physical and chemical approaches are described to show the potentials and limits of the models used for simulation.
Author : Markus Jakob
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (17 download)
Download or read book Optical Investigation of Diesel Engine Related Combustion Processes written by Markus Jakob and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Klaus Mollenhauer
Publisher : Springer Science & Business Media
ISBN 13 : 3540890831
Total Pages : 632 pages
Book Rating : 4.5/5 (48 download)
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.
Author : Society of Automotive Engineers
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.0/5 ( download)
Download or read book Diesel Combustion and Emissions written by Society of Automotive Engineers and published by . This book was released on 1981 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 : 9789174734867
Total Pages : 98 pages
Book Rating : 4.7/5 (348 download)
Download or read book The Low Load Limit of Gasoline Partially Premixed Combustion (PPC) written by and published by . This book was released on 2013 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Akhilendra Pratap Singh
Publisher : Springer Nature
ISBN 13 : 9811503354
Total Pages : 163 pages
Book Rating : 4.8/5 (115 download)
Download or read book Simulations and Optical Diagnostics for Internal Combustion Engines written by Akhilendra Pratap Singh and published by Springer Nature. This book was released on 2019-10-11 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
