Download or read book International Conference on Ignition Systems for Gasoline Engines International Conference on Knocking in Gasoline Engines written by Marc Sens and published by expert verlag GmbH. This book was released on 2022-10-17 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: For decades, scientists and engineers have been working to increase the efficiency of internal combustion engines. For spark-ignition engines, two technical questions in particular are always in focus: 1. How can the air/fuel mixture be optimally ignited under all possible conditions? 2. How can undesirable but recurrent early and self-ignitions in the air/fuel mixture be avoided? Against the background of the considerable efficiency increases currently being sought in the context of developments and the introduction of new fuels, such as hydrogen, methanol, ammonia and other hydrogen derivatives as well as biofuels, these questions are more in the focus than ever. In order to provide a perfect exchange platform for the community of combustion process and system developers from research and development, IAV has organized this combined conference, chaired by Marc Sens. The proceedings presented here represent the collection of all the topics presented at the event and are thus intended to serve as an inspiration and pool of ideas for all interested parties.

Download or read book International Conference on Ignition Systems for Gasoline Engines International Conference on Knocking in Gasoline Engines written by Michael Günther and published by . This book was released on 2021-12-13 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Knocking in Gasoline Engines written by Michael Günther and published by Springer. This book was released on 2017-11-21 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book includes the papers presented at the conference discussing approaches to prevent or reliably control knocking and other irregular combustion events. The majority of today’s highly efficient gasoline engines utilize downsizing. High mean pressures produce increased knocking, which frequently results in a reduction in the compression ratio at high specific powers. Beyond this, the phenomenon of pre-ignition has been linked to the rise in specific power in gasoline engines for many years. Charge-diluted concepts with high compression cause extreme knocking, potentially leading to catastrophic failure. The introduction of RDE legislation this year will further grow the requirements for combustion process development, as residual gas scavenging and enrichment to improve the knock limit will be legally restricted despite no relaxation of the need to reach the main center of heat release as early as possible. New solutions in thermodynamics and control engineering are urgently needed to further increase the efficiency of gasoline engines.

Download or read book Ignition Systems for Gasoline Engines written by Michael Günther and published by Springer. This book was released on 2016-11-18 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume includes selected and reviewed papers from the 3rd Conference on Ignition Systems for Gasoline Engines in Berlin in November 2016. Experts from industry and universities discuss in their papers the challenges to ignition systems in providing reliable, precise ignition in the light of a wide spread in mixture quality, high exhaust gas recirculation rates and high cylinder pressures. Classic spark plug ignition as well as alternative ignition systems are assessed, the ignition system being one of the key technologies to further optimizing the gasoline engine.

Download or read book Internationale Tagung Z ndsysteme f r Ottomotoren written by Michael Günther and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ignition Systems for Gasoline Engines written by International Conference on Ignition Systems for Gasoline Engines and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Conference on Ignition Systems for Gasoline Engines International Conference on Knocking in Gasoline Engines written by and published by . This book was released on 2024-09-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mathematical Methods 4 Electrotechnic Freaks written by Jürgen Ulm and published by expert verlag GmbH. This book was released on 2023-12-18 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book offers a practice-oriented introduction to the mathematical methods of electrical engineering. The focus is on the solution of ordinary and partial differential equations using analytical and numerical methods. The analytical methods are opposed to the numerical methods. The differential equations were chosen with a view to the problems of electrical engineering. It is shown how they can also be transferred to mechanics or thermodynamics. Numerous examples and exercises with elaborated solutions facilitate the transfer of knowledge to applications.

Download or read book Modeling of End Gas Autoignition for Knock Prediction in Gasoline Engines written by Andreas Manz and published by Logos Verlag Berlin GmbH. This book was released on 2016-08-18 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Downsizing of modern gasoline engines with direct injection is a key concept for achieving future CO22 emission targets. However, high power densities and optimum efficiency are limited by an uncontrolled autoignition of the unburned air-fuel mixture, the so-called spark knock phenomena. By a combination of three-dimensional Computational Fluid Dynamics (3D-CFD) and experiments incorporating optical diagnostics, this work presents an integral approach for predicting combustion and autoignition in Spark Ignition (SI) engines. The turbulent premixed combustion and flame front propagation in 3D-CFD is modeled with the G-equation combustion model, i.e. a laminar flamelet approach, in combination with the level set method. Autoignition in the unburned gas zone is modeled with the Shell model based on reduced chemical reactions using optimized reaction rate coefficients for different octane numbers (ON) as well as engine relevant pressures, temperatures and EGR rates. The basic functionality and sensitivities of improved sub-models, e.g. laminar flame speed, are proven in simplified test cases followed by adequate engine test cases. It is shown that the G-equation combustion model performs well even on unstructured grids with polyhedral cells and coarse grid resolution. The validation of the knock model with respect to temporal and spatial knock onset is done with fiber optical spark plug measurements and statistical evaluation of individual knocking cycles with a frequency based pressure analysis. The results show a good correlation with the Shell autoignition relevant species in the simulation. The combined model approach with G-equation and Shell autoignition in an active formulation enables a realistic representation of thin flame fronts and hence the thermodynamic conditions prior to knocking by taking into account the ignition chemistry in unburned gas, temperature fluctuations and self-acceleration effects due to pre-reactions. By the modeling approach and simulation methodology presented in this work the overall predictive capability for the virtual development of future knockproof SI engines is improved.

Download or read book Knocking in Gasoline Engines written by Matthias Kratzsch and published by DCM Druck Center Meckenheim GmbH - www.druckcenter.de. This book was released on 2014-02-27 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The European Commission is planning to limit emissions under real driving conditions up to high engine loads. RDE (real driving emissions) legislation demands the complete conversion of exhaust gases in the catalytic converter which can only be achieved for spark-ignition engines at lambda=1. High exhaust gas temperatures resulting from late centers of heat release caused by knock can then no longer be limited by mixture enrichment. In addition, higher mean effective pressures are needed to improve the efficiency of SI engines. A strong tendency to knock during stoichiometric combustion in conjunction with high mean effective pressure places exacting demands on the SI engine combustion process. The focus of engine development consequently remains on reducing knock and on avoiding irregular combustion events. In particular, phenomena such as pre-ignition, which is typically observed in downsizing concepts, or extreme knock of the type frequently occurring in highcompression lean-burn concepts, are immense challenges to developers. Contents: Potentials and limits of downsizing | Mega-knock in super-charged gasoline engines interpreted as a localized developing detonation | A contribution to better understanding the pre-ignition phenomenon in highly charged internal combustion engines with direct fuel injection | Minimising autoignition for optimum efficiency in high specific output spark-ignited engines | Reduction in knocking intensity of an SI engine by in-cylinder temperature stratification | New approach to the determination of knock onset | Cylinder pressure-based knock detection – challenges in cylinder pressure indication and application in a new engine-based fuel test method | Irregular combustion: development and calibration of highly boosted SI engines | Optically diagnosing combustion anomalies as part of designing the combustion process | Using surface thermocouples and light conductor measurements to examine the thermal load on a gasoline engine’s components during knocking engine operation | Comparative analysis of low-speed pre-ignition phenomena in SI gasoline and dual fuel diesel-methane engines | LEC-GPN – a new Index for assessing the knock behavior of gaseous fuels for large engines | A statistical modeling approach with detailed chemical kinetics for use in 3DCFD engine knock predictions | Investigation on knocking combustion with reaction kinetics for a turbocharged SIDI engine | Knocking simulation at Mercedes-Benz – application in series production development | The DELTA knocking control – the necessary paradigm shift for engines with high power density | Artificial Intelligence for knock detection | Knock detection strategies based on engine acoustic emission analysis | Continental’s pre-ignition and glow ignition function – detection and avoidance of irregular combustions | Pre-ignition analysis on a turbocharged gasoline engine with direct injection | Knock and irregular combustion – challenges for the new turbocharged, highperformance four-cylinder AMG engine | Simulations and experimental investigations of intermittent pre-ignition series in a turbocharged DISI engine Target group: This book addresses engine developers working for car manufacturers and suppliers. With regard to knocking combustion in spark-ignition engines – irregular combustion – it provides an overview of thermodynamic principals, approaches to measurement and computation together with current trends for mass-production development.

Download or read book Ignition Systems for Gasoline Engines written by Robert Bosch GmbH. and published by . This book was released on 2003 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Which Fuels for Low CO2 Engines written by Pierre Duret and published by Editions TECHNIP. This book was released on 2004 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout the world, research and development in the field of vehicle transportation is increasingly focusing on engine and fuel combinations. The conventional and alternative fuels of the future are seen as fundamental to the development of a new generation of internal combustion engines that attain low well-to-wheel CO2 emissions along with near-zero pollutant emissions. These issues were debated during an international conference whose proceedings are presented in this book. This international conference attracted specialists in the field, including participants from universities, research centres and industry.Contents : Future of liquid fuels, Engine and fuel-related issues in HCCI & CAI combustion, Energy conversion in engines from natural gas, Use of hydrogen in IC engines, Which fuels for low CO2 engines?

Download or read book Proceedings of the 4th International Conference on Industrial Engineering written by Andrey A. Radionov and published by Springer. This book was released on 2018-12-07 with total page 2368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights recent findings in industrial, manufacturing and mechanical engineering, and provides an overview of the state of the art in these fields, mainly in Russia and Eastern Europe. A broad range of topics and issues in modern engineering are discussed, including the dynamics of machines and working processes, friction, wear and lubrication in machines, surface transport and technological machines, manufacturing engineering of industrial facilities, materials engineering, metallurgy, control systems and their industrial applications, industrial mechatronics, automation and robotics. The book gathers selected papers presented at the 4th International Conference on Industrial Engineering (ICIE), held in Moscow, Russia in May 2018. The authors are experts in various fields of engineering, and all papers have been carefully reviewed. Given its scope, the book will be of interest to a wide readership, including mechanical and production engineers, lecturers in engineering disciplines, and engineering graduates.

Download or read book Powertrain Systems for a Sustainable Future written by Institution of Mechanical Engineers (IMechE) and published by CRC Press. This book was released on 2023-12-04 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transport sector continues to shift towards alternative powertrains, particularly with the UK Government’s focus on ending the sale of petrol and diesel passenger cars by 2030 and increasing support for alternatives. Despite this announcement, the internal combustion could continue to play a significant role both in the passenger car market through the use of hybrids and sustainable low carbon fuels including hydrogen, as well as a key role in other sectors such as heavy-duty vehicles and off-highway applications across the globe. The contributions presented at the International Conference on Powertrain Systems for a Sustainable Future 2023 (London, UK, 29- 30 November 2023) focus on the internal combustion engine’s role in net-zero transport as well as covering developments in the wide range of propulsion systems available (electric, hydrogen internal combustion engines and fuel cells, sustainable fuels etc) and their associated powertrains. To achieve a sustainable future for transport across the globe we will need to deploy all technologies and so, to help understand how these might fit together, life-cycle analysis of future powertrain systems and energy will also be included. Powertrain Systems for a Sustainable Future provides a forum for engine, fuels, e-machine, fuel cell and powertrain experts to look closely at developments in powertrain technology required to meet the demands of the net-zero future and global competition in all sectors of the road transportation, off-highway, marine and stationary power industries.

Download or read book Injection Technologies and Mixture Formation Strategies For Spark Ignition and Dual Fuel Engines written by Alessandro Ferrari and published by SAE International. This book was released on 2022-06-24 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel injection systems and performance is fundamental to combustion engine performance in terms of power, noise, efficiency, and exhaust emissions. There is a move toward electric vehicles (EVs) to reduce carbon emissions, but this is unlikely to be a rapid transition, in part due to EV batteries: their size, cost, longevity, and charging capabilities as well as the scarcity of materials to produce them. Until these isssues are resolved, refining the spark-ignited engine is necessary address both sustainability and demand for affordable and reliable mobility. Even under policies oriented to smart sustainable mobility, spark-ignited engines remain strategic, because they can be applied to hybridized EVs or can be fueled with gasoline blended with bioethanol or bio-butanol to drastically reduce particulate matter emissions of direct injection engines in addition to lower CO2 emissions. In this book, Alessandro Ferrari and Pietro Pizzo provide a full review of spark-ignited engine fuel injection systems. The most popular typologies of fuel injection systems are considered, with special focus on state-of-the-art solutions. Dedicated sections on the methods for air mass evaluation, fuel delivery low-pressure modules, and the specific subsystems for idle, cold start, and warm-up control are also included. The authors pay special attention to mixture formation strategies, as they are a fundamental theme for SI engines. An exhaustive overview of fuel injection technologies is provided, and mixture formation strategies for spark ignited combustion engines are considered. Fuel Injection Systems illustrates the performance of these systems and will also serve as a reference for engineers who are active in the aftermarket, offering detailed information on fuel injection system solutions that are mounted in older vehicles.

Download or read book Internal Combustion Engineering Science Technology written by P.M. Weaving and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sir Diarmuid Downs, CBE, FEng, FRS Engineering is about designing and making marketable artefacts. The element of design is what principally distinguishes engineering from science. The engineer is a creator. He brings together knowledge and experience from a variety of sources to serve his ends, producing goods of value to the individual and to the community. An important source of information on which the engineer draws is the work of the scientist or the scientifically minded engineer. The pure scientist is concerned with knowledge for its own sake and receives his greatest satisfaction if his experimental observations fit into an aesthetically satisfying theory. The applied scientist or engineer is also concerned with theory, but as a means to an end. He tries to devise a theory which will encompass the known experimental facts, both because an all embracing theory somehow serves as an extra validation of the facts and because the theory provides us with new leads to further fruitful experimental investigation. I have laboured these perhaps rather obvious points because they are well exemplified in this present book. The first internal combustion engines, produced just over one hundred years ago, were very simple, the design being based on very limited experimental information. The current engines are extremely complex and, while the basic design of cylinder, piston, connecting rod and crankshaft has changed but little, the overall performance in respect of specific power, fuel economy, pollution, noise and cost has been absolutely transformed.

Download or read book Ignition Systems for Gasoline Engines written by Robert Bosch and published by Robert Bosch GmbH. This book was released on 2003-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the dawn of the automotive age, designing a suitable ignition system for the spark-ignition engine represented as formulated by automotive pioneer Carl Benz the crux of all our problems. Among the exceptional talents focused on resolving the thorny issues of the day was that of Robert Bosch. The ultimate result was the Bosch high-voltage magneto. The company registered a patent on this epoch-making system on 7 January, 1902, in the same year that the first units were delivered to customers in the automotive industry. At the same time, Bosch embarked upon the development and manufacture of yet another vital ignition component, the spark plug, an event which celebrated its 100th anniversary in 2002. This brochure from our automotive technology series starts with a thumbnail sketch tracing the evolution of ignition systems. It then proceeds to the design and operation of modern inductive ignition systems as installed in current passenger cars with spark-ignition engines. Two of this brochures central topics are the ignition coil and the spark plug, to which special sections have been devoted. These sections furnish detailed descriptions of the design, versions and operating concepts of various coil and plug models. Also included are descriptions of the particular demands imposed by direct gasoline injection and their implications for the selection of ignition components. The chapter on service technology offers insights into the methods employed to test ignition systems along with an overview of the test equipment used in service operations. Covers: -Historical retrospective-Design of inductive ignition systems-Ignition coils and spark plugs-Service technology