Download or read book Combustion Optimization in a Hydrogen enhanced Lean Burn SI Engine written by Joshua Arlen Goldwitz and published by . This book was released on 2004 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) An inductive ignition system in conjunction with a high tumble-motion inlet configuration leads to the highest levels of combustion performance. Furthermore, hydrogen enhancement affects a nearly constant absolute improvement in the lean misfire limit regardless of baseline combustion behavior. Conversely, the amount of improvement in the point of peak engine NIMEP output is inversely related to the level of baseline performance.

Download or read book Investigating Hydrogen Enhanced Combustion in a Sustainability Context written by and published by . This book was released on 2011 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since their invention, internal combustion engines have played a major role in the social and economic development of many countries by allowing people and goods to move from one place to another for longer distances and in shorter times. However, the negative environmental impacts of the widespread use of internal combustion engines in private and commercial vehicles have reached alarming values, with future prospects being much worse. In addition, fuel consumption and the dependency on oil imports of many countries have increased sharply in the past years as vehicle populations and use increased. The current trends are clearly unsustainable and thus new technologies are to be sought that can reduce both engine tailpipe emissions and fuel consumption. Hydrogen enhanced combustion has the potential of doing this. For this reason three engines - a carburetted petrol engine, a fuel injection petrol engine and a diesel engine - have been tested to investigate the effects of adding small amounts of hydrogen to the air intake of the engines on performance and HC, CO and CO2 emissions. The engines were tested at different engine speeds and loads to simulate normal on-the-road operating conditions. The hydrogen was produced from the electrolysis of a solution of distilled water and sodium hydroxide using two different electrolyser designs. Both the hydrogen and oxygen that were produced by electrolysis were added to the engine's intake during the tests. The results show that the addition of hydrogen-oxygen is most effective in stabilizing and enhancing the combustion of lean air-fuel mixtures inside the petrol injected engine, allowing for lower HC, CO and CO2 emissions. Thus hydrogen enhanced combustion could play a role in stabilizing lean burn petrol engines. However, it also transpired that a major drawback of the technology is the energy input required to produce the hydrogen, which in most cases was higher than the increase in output resulting from the more efficient combustion. Thus system optimization and alternative means of energy input would be required to ensure that a net positive effect is achieved.

Download or read book Lean burn Characteristics of a Gasoline Engine Enriched with Hydrogen from a Plasmatron Fuel Reformer written by Edward Joseph Tully and published by . This book was released on 2002 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Index abstracts of SAE Technical Papers written by and published by . This book was released on 2007 with total page 1218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fuel Systems for IC Engines written by Institution of Mechanical Engineers and published by Elsevier. This book was released on 2012-03-06 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the papers from the latest conference in this successful series on fuel injection systems for internal combustion engines. It is vital for the automotive industry to continue to meet the demands of the modern environmental agenda. In order to excel, manufacturers must research and develop fuel systems that guarantee the best engine performance, ensuring minimal emissions and maximum profit. The papers from this unique conference focus on the latest technology for state-of-the-art system design, characterisation, measurement, and modelling, addressing all technological aspects of diesel and gasoline fuel injection systems. Topics range from fundamental fuel spray theory, component design, to effects on engine performance, fuel economy and emissions. - Presents the papers from the IMechE conference on fuel injection systems for internal combustion engines - Papers focus on the latest technology for state-of-the-art system design, characterisation, measurement and modelling; addressing all technological aspects of diesel and gasoline fuel injection systems - Topics range from fundamental fuel spray theory and component design to effects on engine performance, fuel economy and emissions

Download or read book Hydrogen Enrichment for the Extension of the Lean Limit and Enhanced Combustion in an Alcohol fueled Spark ignition Engine written by Jason Brian Greenwood and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made to determine the effects of hydrogen enrichment in the lean combustion regime for ethanol and to determine if it could extend the lean operating limit for both ethanol and methanol. In this study, a 0.745 liter 2-cylinder Kawasaki engine was modified to operate with both alcohol and hydrogen fuels. Hydrogen concentrations of 0%, 15%, and 30% by volume hydrogen in the primary fuel were fumigated into the intake before the throttle; the engine was operated at 2000 RPM and part throttle. Data were collected to calculate NO and HC emissions, power, exhaust gas temperature, thermal efficiency, volumetric efficiency, brake-specific fuel consumption, and flame development and rapid burning angles. It was shown that hydrogen enrichment demonstrated an ability to not only decrease NO emissions, but also stabilize and accelerate the combustion process in the lean combustion regime. At a given equivalence ratio, hydrogen addition decreased NO emissions; this decrease was attributed to a change in dominate NO production mechanism(s) under lean operating conditions. Hydrogen enabled a marginal extension of the lean operating limit (LOL) for both fuels, with the potential of further extending the LOL if the stability criteria are changed. Hydrogen enrichment at both 15% and 30% by volume reduced engine-out NO emissions near the lean operating limit by more than 95% relative to stoichiometric ethanol operation while both the COV and HC emissions were kept low, making it a potentially competitive alternative to NO reduction through traditional three-way catalytic after-treatment. Power, thermal efficiency, and volumetric efficiency were not significantly affected by hydrogen addition at a given equivalence ratio; however, if hydrogen addition is used to decrease the lean operating limit, decreases in power and thermal efficiency were observed. Power in the lean combustion regime decreased by between 31 and 37% when compared to stoichiometric operation without hydrogen.

Download or read book Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division written by American Society of Mechanical Engineers. Internal Combustion Engine Division. Spring Technical Conference and published by . This book was released on 2006 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Knock Behavior of a Lean burn Hydrogen enhanced Engine Concept written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: By Jennifer A. Topinka.

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 Hydrogen Enrichment of Landfill Gas for Enhanced Combustion in Internal combustion Reciprocating Engines written by Kurt Lawrence Kornbluth and published by . This book was released on 2008 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Renewable Hydrogen Technologies written by Luis M Gandia and published by Newnes. This book was released on 2013-05-03 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fields covered by the hydrogen energy topic have grown rapidly, and now it has become clearly multidisciplinary. In addition to production, hydrogen purification and especially storage are key challenges that could limit the use of hydrogen fuel. In this book, the purification of hydrogen with membrane technology and its storage in "solid" form using new hydrides and carbon materials are addressed. Other novelties of this volume include the power conditioning of water electrolyzers, the integration in the electric grid of renewable hydrogen systems and the future role of microreactors and micro-process engineering in hydrogen technology as well as the potential of computational fluid dynamics to hydrogen equipment design and the assessment of safety issues. Finally, and being aware that transportation will likely constitute the first commercial application of hydrogen fuel, two chapters are devoted to the recent advances in hydrogen fuel cells and hydrogen-fueled internal combustion engines for transport vehicles. - Hydrogen from water and biomass considered - Holistic approach to the topic of renewable hydrogen production - Power conditioning of water electrolyzers and integration of renewable hydrogen energy systems considered - Subjects not included in previous books on hydrogen energy - Micro process technology considered - Subject not included in previous books on hydrogen energy - Applications of CFD considered - Subject not included in previous books on hydrogen energy - Fundamental aspects will not be discussed in detail consciously as they are suitably addressed in previous books - Emphasis on technological advancements - Chapters written by recognized experts - Up-to date approach to the subjects and relevant bibliographic references

Download or read book Industrial Gas Turbines written by A M Y Razak and published by Elsevier. This book was released on 2007-10-31 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: Industrial Gas Turbines: Performance and Operability explains important aspects of gas turbine performance such as performance deterioration, service life and engine emissions. Traditionally, gas turbine performance has been taught from a design perspective with insufficient attention paid to the operational issues of a specific site. Operators are not always sufficiently familiar with engine performance issues to resolve operational problems and optimise performance.Industrial Gas Turbines: Performance and Operability discusses the key factors determining the performance of compressors, turbines, combustion and engine controls. An accompanying engine simulator CD illustrates gas turbine performance from the perspective of the operator, building on the concepts discussed in the text. The simulator is effectively a virtual engine and can be subjected to operating conditions that would be dangerous and damaging to an engine in real-life conditions. It also deals with issues of engine deterioration, emissions and turbine life. The combined use of text and simulators is designed to allow the reader to better understand and optimise gas turbine operation. - Discusses the key factors in determining the perfomance of compressors, turbines, combustion and engine controls - Explains important aspects of gas and turbine perfomance such as service life and engine emissions - Accompanied by CD illustrating gas turbine performance, building on the concepts discussed in the text

Download or read book Cost Effectiveness and Deployment of Fuel Economy Technologies for Light Duty Vehicles written by National Research Council and published by National Academies Press. This book was released on 2015-09-28 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: The light-duty vehicle fleet is expected to undergo substantial technological changes over the next several decades. New powertrain designs, alternative fuels, advanced materials and significant changes to the vehicle body are being driven by increasingly stringent fuel economy and greenhouse gas emission standards. By the end of the next decade, cars and light-duty trucks will be more fuel efficient, weigh less, emit less air pollutants, have more safety features, and will be more expensive to purchase relative to current vehicles. Though the gasoline-powered spark ignition engine will continue to be the dominant powertrain configuration even through 2030, such vehicles will be equipped with advanced technologies, materials, electronics and controls, and aerodynamics. And by 2030, the deployment of alternative methods to propel and fuel vehicles and alternative modes of transportation, including autonomous vehicles, will be well underway. What are these new technologies - how will they work, and will some technologies be more effective than others? Written to inform The United States Department of Transportation's National Highway Traffic Safety Administration (NHTSA) and Environmental Protection Agency (EPA) Corporate Average Fuel Economy (CAFE) and greenhouse gas (GHG) emission standards, this new report from the National Research Council is a technical evaluation of costs, benefits, and implementation issues of fuel reduction technologies for next-generation light-duty vehicles. Cost, Effectiveness, and Deployment of Fuel Economy Technologies for Light-Duty Vehicles estimates the cost, potential efficiency improvements, and barriers to commercial deployment of technologies that might be employed from 2020 to 2030. This report describes these promising technologies and makes recommendations for their inclusion on the list of technologies applicable for the 2017-2025 CAFE standards.

Download or read book Introduction to Modeling and Control of Internal Combustion Engine Systems written by Lino Guzzella and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal combustion engines still have a potential for substantial improvements, particularly with regard to fuel efficiency and environmental compatibility. These goals can be achieved with help of control systems. Modeling and Control of Internal Combustion Engines (ICE) addresses these issues by offering an introduction to cost-effective model-based control system design for ICE. The primary emphasis is put on the ICE and its auxiliary devices. Mathematical models for these processes are developed in the text and selected feedforward and feedback control problems are discussed. The appendix contains a summary of the most important controller analysis and design methods, and a case study that analyzes a simplified idle-speed control problem. The book is written for students interested in the design of classical and novel ICE control systems.

Download or read book Engines and Fuels for Future Transport written by Gautam Kalghatgi and published by Springer Nature. This book was released on 2021-12-13 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on clean transport and mobility essential to the modern world. It discusses internal combustion engines (ICEs) and alternatives like battery electric vehicles (BEVs) which are growing fast. Alternatives to ICEs start from a very low base and face formidable environmental, material availability, and economic challenges to unlimited and rapid growth. Hence ICEs will continue to be the main power source for transport for decades to come and have to be continuously improved to improve transport sustainability. The book highlights the need to assess proposed changes in the existing transport system on a life cycle basis. The volume includes chapters discussing the challenges faced by ICEs as well as chapters on novel fuels and fuel/ engine interactions which help in this quest to improve the efficiency of ICE and reduce exhaust pollutants. This book will be of interest to those in academia and industry alike.

Download or read book Advances in IC Engines and Combustion Technology written by Ashwani K. Gupta and published by Springer Nature. This book was released on 2020-08-18 with total page 939 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select peer-reviewed proceedings of the 26th National Conference on IC Engines and Combustion (NCICEC) 2019 which was organised by the Department of Mechanical Engineering, National Institute of Technology Kurukshetra under the aegis of The Combustion Institute-Indian Section (CIIS). The book covers latest research and developments in the areas of combustion and propulsion, exhaust emissions, gas turbines, hybrid vehicles, IC engines, and alternative fuels. The contents include theoretical and numerical tools applied to a wide range of combustion problems, and also discusses their applications. This book can be a good reference for engineers, educators and researchers working in the area of IC engines and combustion.

Download or read book Hydrogen for Clean Energy Production Combustion Fundamentals and Applications written by Medhat A. Nemitallah and published by Springer Nature. This book was released on with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: