Download or read book Computational Study of Direct Fuel Injection in the Rotax 914 Engine written by Brad Pollock and published by . This book was released on 2010 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental and Computational Study of Fuel Injection Mixing and Combustion in Diesel Engines written by Laura M. Ricart and published by . This book was released on 1998 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Investigation of Optimal Heavy Fuel Direct Injection Sark Ignition in Rotary Engine written by Asela A. Benthara Wadumesthrige and published by . This book was released on 2011 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this computational study is to investigate the optimum injection and spark parameters for the direct injection spark ignition (DISI) Wankel rotary engine using diesel fuel. Currently only port fuel injected gasoline rotary engines are available in the automotive industry. Compared to reciprocating type engines rotary engine is mechanically simple, less vibrate, have higher power to weight ratio and achieve better performance at high rpm. Due to the inherent low fuel efficiency of rotary engine and increasing gas prices, application of the rotary engine in conventional automobiles is decreasing. This project seeks to introduce DISI technology to the rotary engine thus increase the fuel efficiency allowing it to be another efficient power source option for aero and automotive applications. DISI technology is the latest trend in the automobile manufacturing. This technology helped to combine benefits of both compression ignition (CI) and spark ignition (SI) engines into a single efficient internal combustion process. Multi-fuel capabilities, reduced operating pressures, and reduced compression ratios make this technology applicable for rotary engines. In this study diesel fuel, as opposed to gasoline, is introduced into the rotary engine using DISI technology. Due to high technological advancements used in DISI engines, it is expensive to experimentally incorporate this technology to a new engine. Accurately designed computational analyses can reduce both time and cost by cutting extra experimental test trials. For this computational fluid dynamics (CFD) study ANSYS FLUENT commercial software was used to integrate the DISI technology into a rotary engine model which was designed in Solidworks and meshed in GAMBIT. When creating the engine model, many parameters have to be considered. Engine geometry, injectors, and spark plugs were identified as the most important components needed to be investigated when integrating DISI technology into the rotary engine. By using a readily available rotary engine, direct injector, and spark plug, the number of parameters for the optimization process were reduced. The most important parameters were picked to evaluate the optimum single injection and spark locations. Full factorial experimental design was used to estimate the sensitivity of different combinations of parameters. This was followed by a statistical sensitivity study using JMP 800 commercial software to determine the most and least sensitive parameters to analyze for the optimum setup of single injection rotary engine combustion. Contour plots of fuel consumption, CO2 generated, equivalence ratio, average temperatures, and pressures were used to support the results. The feasibility of multiple injections was also studied by means of their power outputs and fuel efficiencies. Optimum locations, amounts of fuel, number of orifices and orientations of orifices were included when evaluating optimum lead (second) injector. Similar studies were carried out to check the applicability of a third injector. From the results it can be observed that a dual injection setup provided optimum performance from the DISI rotary engine.
Download or read book A Computational Study of Piston Geometries Fuel Injection Characteristics and Flow Fields Inside the Cylinder of Disc Engines written by Yuan-ning Chao and published by . This book was released on 1993 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Fluid Dynamics Analysis of Direct Injection Diesel Engine Sprays and Combustion written by T. Okazaki and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study on Combustion of High Pressure Fuel Injection for Direct Injection Diesel Engine written by T. Kakegawa and published by . This book was released on 1988 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of Fuel Injection Parameters on High speed Direct Injection Diesel Engine Performance and Emissions written by Jeremy Alan Cellarius and published by . This book was released on 2004 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diesel Engine Injection Rate Shape Optimization Using Genetic Algorithms and Multidimensional Modeling written by P. V. Farrell and published by . This book was released on 2001 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational optimization study was performed for a heavy-duty direct-injection diesel engine using the recently developed KIVA-GA computer code. The effects of 11 engine input parameters on emissions and performance were studied. Start of injection (SOI), amount of EGR, boost pressure and eight parameters defining the fuel injection rate-shape were included in the search. The optimized configuration results in very low soot and NO(x) emissions together with relatively low fuel consumption.
Download or read book Computer Analysis of Fuel air Mixing in Direct injection Engines written by A. D. Gosman and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Fuel Injection and Mixture Formation for a Gasoline Direct Injection Engine written by T. Reveille and published by . This book was released on 2005 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Simulation of Fuel Injection for Direct injection Diesel Engines written by R. J. Fairbrother and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Spray Breakup and Mixture in a Gasoline Direct Injection Engine by Using Simulation written by Muzammil Mohamad Alias and published by . This book was released on 2013 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The project is to study the spray breakup and mixture in Gasoline Direct Injection (GDI) The spray breakup and fuel air mixture in the injector system really important to improve the fuel efficiency of Gasoline Direct Injection (GDI) Engine. Engine by using simulation. By using the ANSYS Design Modeler, the design of the injector with different inlet size and combustion chamber has been done. Then, by using Computational Fluid Dynamic (CFD), ANSYS Fluent the flow simulation has been run. The results extracted from the simulation are spray cone angle and penetration length. The simulation is done based on different size of nozzle which are 0.2, 0.3, 0.4 and 0.5 mm. While for another variable is injection pressure which are 3, 6, 10, 15 and 20 Mpa. From the result, the spray cone angle is decreasing as the pressure increase which means the spray cone angle is inversely proportional to the injection pressure. While for another results, the penetration length is directly proportional to the injection pressure. The penetration length is increase as the injection pressure is increase. But, as the nozzle diameterincrease with the same pressure, the penetration length is decreases.
Download or read book Liquid Sprays and Flow Studies in the Direct Injection Diesel Engine Under Motored Conditions written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-11-10 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: A two dimensional, implicit finite difference method of the control volume variety, a two equation model of turbulence, and a discrete droplet model were used to study the flow field, turbulence levels, fuel penetration, vaporization, and mixing in diesel engine environments. The model was also used to study the effects of engine speed, injection angle, spray cone angle, droplet distribution, and intake swirl angle on the flow field, spray penetration and vaporization, and turbulence in motored two-stroke diesel engines. It is shown that there are optimum conditions for injection, which depend on droplet distribution, swirl, spray cone angle, and injection angle. The optimum conditions result in good spray penetration and vaporization and in good fuel mixing. The calculation presented clearly indicates that internal combustion engine models can be used to assess, at least qualitatively, the effects of injection characteristics and engine operating conditions on the flow field and on the spray penetration and vaporization in diesel engines. Nguyen, Hung Lee and Carpenter, Mark H. and Ramos, Juan I. and Schock, Harold J. and Stegeman, James D. Glenn Research Center; Langley Research Center...
Download or read book Direct Fuel Injection written by M. Pontoppidan and published by . This book was released on 1997 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Experiments for Some Combustion Controlling Parameters in a Direct Injection Diesel Engine written by Nipun Verma and published by . This book was released on 2002 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical and Experimental Studies on Combustion Engines and Vehicles written by Paweł Woś and published by BoD – Books on Demand. This book was released on 2020-11-26 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The matters discussed and presented in the chapters of this book cover a wide spectrum of topics and research methods commonly used in the field of engine combustion technology and vehicle functional systems. This book contains the results of both computational analyses and experimental studies on jet and reciprocating combustion engines as well heavy-duty onroad vehicles. Special attention is devoted to research and measures toward preventing the emission of harmful exhaust components, reducing fuel consumption or using unconventional methods of engine fueling or using renewable and alternative fuels in different applications. Some technical improvements in design and control of vehicle systems are also presented.
Download or read book Airplane Aerodynamics and Performance written by Jan Roskam and published by DARcorporation. This book was released on 1997 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
