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Effects Of Highly Cooled Egr On Modern Diesel Engine Performance At Low Temperature Combustion Condition
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Book Synopsis Effects of Highly Cooled EGR on Modern Diesel Engine Performance at Low Temperature Combustion Condition by : G. Avolio
Download or read book Effects of Highly Cooled EGR on Modern Diesel Engine Performance at Low Temperature Combustion Condition written by G. Avolio and published by . This book was released on 2007 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Low Temperature Combustion Modes to Reduce Overall Emissions from a Medium-duty, Four Cylinder Diesel Engine by : Jonathan Robert Breen
Download or read book Development of Low Temperature Combustion Modes to Reduce Overall Emissions from a Medium-duty, Four Cylinder Diesel Engine written by Jonathan Robert Breen and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Low temperature combustion (LTC) is an appealing new method of combustion that promises low nitric oxides and soot emissions while maintaining or improving on engine performance. The three main points of this study were to develop and validate an engine model in GT-Power capable of implementing LTC, to study parametrically exhaust gas recirculation (EGR) and injection timing effects on performance and emissions, and to investigate methods to decrease pressure rise rates during LTC operation. The model was validated at nine different operating points, 3 speeds and 3 loads, while the parametric studies were conducted on 6 of the 9 operating points, 3 speeds and 2 loads. The model consists of sections that include: cylinders, ports, intake and exhaust manifolds, EGR system, and turbocharger. For this model, GT-Power calculates the combustion using a multi-zone, quasi-dimensional model and a knock-induced combustion model. The main difference between them is that the multi-zone model is directly injected while the knock model is port injected. A variety of sub models calculate the fluid flow and heat transfer. A parametric study varying the EGR and the injection timing to determine the optimal combination was conducted using the multi-zone model while a parametric study that just varies EGR is carried out using the knock model. The first parametric study showed that the optimal EGR and injection timing combination for the low loads occurred at high levels of EGR (60 percent) and advanced injection timings (30 to 40 crank angle degrees before top dead center). The optimal EGR and injection timing combination for the high loads occurred at low levels of EGR (30 percent to 40 percent) and retarded injection timings (7.5 to 5 crank angle degrees before top dead center). The knock model determined that the ideal EGR ratio for homogeneous charge compression ignition (HCCI) operation varied from 30 percent to 45 percent, depending on the operating condition. Three methods were investigated as possible ways to reduce pressure rise rates during LTC operation. The only feasible method was the multiple injection strategy which provided dramatically reduced pressure rise rates across all EGR levels and injection timings.
Book Synopsis The Effects of Cooled Exhaust Gas Recirculation on a High-speed Direct Injected Diesel Engine by : Rachel A. Snow
Download or read book The Effects of Cooled Exhaust Gas Recirculation on a High-speed Direct Injected Diesel Engine written by Rachel A. Snow and published by . This book was released on 2001 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diesel Combustion and Emissions by : Society of Automotive Engineers
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:
Book Synopsis Investigation of Mixing and Temperature Effects on UHC/CO Emission for Highly Dilute Low Temperature Combustion in a Light-duty Diesel Engine by : Richard Michael Opat
Download or read book Investigation of Mixing and Temperature Effects on UHC/CO Emission for Highly Dilute Low Temperature Combustion in a Light-duty Diesel Engine written by Richard Michael Opat and published by . This book was released on 2006 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Exhaust Temperature on the Performance of a Diesel Engine with EGR by : Navindran Subramaniam
Download or read book Effect of Exhaust Temperature on the Performance of a Diesel Engine with EGR written by Navindran Subramaniam and published by . This book was released on 2010 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this project is to determine the effect of the exhaust temperature on the performance of the diesel engine with exhaust gas recirculation (EGR) with respect to engine speed, throttle, biodiesel fuel and diesel fuel. Experiments have been performed for diesel fuel and bio-diesel fuel with 50% of throttle position for with and without EGR system. Engine brake torque, brake power and the exhaust temperature have been investigated for both fuels. All data were collected using data acquisition system which operates with Dewesoft software. The data were then exported to the Microsoft excel in order to construct graphs for performance analysis for each type of fuel and the engine conditions. From the analysis, it was found that the existence of EGR valve were reducing the exhaust temperature. Other than that, the torque produced by the engine with EGR valve were also lower than the engine without EGR valve. This shows that the exhaust temperature has an effect on the engine performance and allows the reduction of NOx formation.
Book Synopsis Advanced Diesel Combustion Using of Wide Range, High Boosted and Cooled EGR System by Single Cylinder Engine by :
Download or read book Advanced Diesel Combustion Using of Wide Range, High Boosted and Cooled EGR System by Single Cylinder Engine written by and published by . This book was released on 2006 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: "For reducing exhaust emissions of heavy-duty diesel engines, the authors made an experimental study of diesel combustion using a single cylinder engine. The engine performance and exhaust emissions have been measured using a wide range and high EGR rate under the conditions of high boost intake pressure." -- Abstract.
Book Synopsis An Investigation of the Effects of Injection and EGR Parameters on the Emissions and Performance of Heavy Duty Direct Injection Diesel Engines by : David T. Montgomery
Download or read book An Investigation of the Effects of Injection and EGR Parameters on the Emissions and Performance of Heavy Duty Direct Injection Diesel Engines written by David T. Montgomery and published by . This book was released on 1996 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling and Control of EGR on Marine Two-Stroke Diesel Engines by : Xavier Llamas
Download or read book Modeling and Control of EGR on Marine Two-Stroke Diesel Engines written by Xavier Llamas and published by Linköping University Electronic Press. This book was released on 2018-02-20 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The international marine shipping industry is responsible for the transport of around 90% of the total world trade. Low-speed two-stroke diesel engines usually propel the largest trading ships. This engine type choice is mainly motivated by its high fuel efficiency and the capacity to burn cheap low-quality fuels. To reduce the marine freight impact on the environment, the International Maritime Organization (IMO) has introduced stricter limits on the engine pollutant emissions. One of these new restrictions, named Tier III, sets the maximum NOx emissions permitted. New emission reduction technologies have to be developed to fulfill the Tier III limits on two-stroke engines since adjusting the engine combustion alone is not sufficient. There are several promising technologies to achieve the required NOx reductions, Exhaust Gas Recirculation (EGR) is one of them. For automotive applications, EGR is a mature technology, and many of the research findings can be used directly in marine applications. However, there are some differences in marine two-stroke engines, which require further development to apply and control EGR. The number of available engines for testing EGR controllers on ships and test beds is low due to the recent introduction of EGR. Hence, engine simulation models are a good alternative for developing controllers, and many different engine loading scenarios can be simulated without the high costs of running real engine tests. The primary focus of this thesis is the development and validation of models for two-stroke marine engines with EGR. The modeling follows a Mean Value Engine Model (MVEM) approach, which has a low computational complexity and permits faster than real-time simulations suitable for controller testing. A parameterization process that deals with the low measurement data availability, compared to the available data on automotive engines, is also investigated and described. As a result, the proposed model is parameterized to two different two-stroke engines showing a good agreement with the measurements in both stationary and dynamic conditions. Several engine components have been developed. One of these is a new analytic in-cylinder pressure model that captures the influence of the injection and exhaust valve timings without increasing the simulation time. A new compressor model that can extrapolate to low speeds and pressure ratios in a physically sound way is also described. This compressor model is a requirement to be able to simulate low engine loads. Moreover, a novel parameterization algorithm is shown to handle well the model nonlinearities and to obtain a good model agreement with a large number of tested compressor maps. Furthermore, the engine model is complemented with dynamic models for ship and propeller to be able to simulate transient sailing scenarios, where good EGR controller performance is crucial. The model is used to identify the low load area as the most challenging for the controller performance, due to the slower engine air path dynamics. Further low load simulations indicate that sensor bias can be problematic and lead to an undesired black smoke formation, while errors in the parameters of the controller flow estimators are not as critical. This result is valuable because for a newly built engine a proper sensor setup is more straightforward to verify than to get the right parameters for the flow estimators.
Book Synopsis Implementation and Transient Effects of Low Pressure EGR on Low Temperature Diesel Combustion by : Chris Meyer
Download or read book Implementation and Transient Effects of Low Pressure EGR on Low Temperature Diesel Combustion written by Chris Meyer and published by . This book was released on 2010 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transient Effects of Load and Speed on Low Temperature Diesel Combustion by : Daniel Ryan Williams
Download or read book Transient Effects of Load and Speed on Low Temperature Diesel Combustion written by Daniel Ryan Williams and published by . This book was released on 2008 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Development of Heavy Duty Diesel Engines by : P. A. Lakshminarayanan
Download or read book Design and Development of Heavy Duty Diesel Engines written by P. A. Lakshminarayanan and published by Springer Nature. This book was released on 2019-11-05 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to serve as a comprehensive reference on the design and development of diesel engines. It talks about combustion and gas exchange processes with important references to emissions and fuel consumption and descriptions of the design of various parts of an engine, its coolants and lubricants, and emission control and optimization techniques. Some of the topics covered are turbocharging and supercharging, noise and vibrational control, emission and combustion control, and the future of heavy duty diesel engines. This volume will be of interest to researchers and professionals working in this area.
Book Synopsis Effect of Ultra-Cooled EGR and Retarded Injection Timing on Low Temperature Combustion in CI Engines by : P. Brijesh
Download or read book Effect of Ultra-Cooled EGR and Retarded Injection Timing on Low Temperature Combustion in CI Engines written by P. Brijesh and published by . This book was released on 2013 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow and Combustion in Reciprocating Engines by : C. Arcoumanis
Download or read book Flow and Combustion in Reciprocating Engines written by C. Arcoumanis and published by Springer Science & Business Media. This book was released on 2009-06-29 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimization of combustion processes in automotive engines is a key factor in reducing fuel consumption. This book, written by eminent university and industry researchers, investigates and describes flow and combustion processes in diesel and gasoline engines.
Book Synopsis Diesel Emissions and Their Control, 2nd Edition by : W. Addy Majewski
Download or read book Diesel Emissions and Their Control, 2nd Edition written by W. Addy Majewski and published by SAE International. This book was released on 2023-12-20 with total page 1135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineers, applied scientists, students, and individuals working to reduceemissions and advance diesel engine technology will find the secondedition of Diesel Emissions and Their Control to be an indispensablereference. Whether readers are at the outset of their learning journey orseeking to deepen their expertise, this comprehensive reference bookcaters to a wide audience.In this substantial update to the 2006 classic, the authors have expandedthe coverage of the latest emission technologies. With the industryevolving rapidly, the book ensures that readers are well-informed aboutthe most recent advances in commercial diesel engines, providing acompetitive edge in their respective fields. The second edition has alsostreamlined the content to focus on the most promising technologies.This book is rooted in the wealth of information available on DieselNet.com, where the “Technology Guide” papers offer in-depth insights. Eachchapter includes links to relevant online materials, granting readers accessto even more expertise and knowledge.The second edition is organized into six parts, providing a structuredjourney through every aspect of diesel engines and emissions control: Part I: A foundational exploration of the diesel engine, combustion, andessential subsystems. Part II: An in-depth look at emission characterization, health andenvironmental impacts, testing methods, and global regulations. Part III: A comprehensive overview of diesel fuels, covering petroleumdiesel, alternative fuels, and engine lubricants. Part IV: An exploration of engine efficiency and emission controltechnologies, from exhaust gas recirculation to engine control. Part V: The latest developments in diesel exhaust aftertreatment,encompassing catalyst technologies and particulate filters. Part VI: A historical journey through the evolution of dieselengine technology, with a focus on heavy-duty engines in the NorthAmerican market. (ISBN 9781468605693, ISBN 9781468605709, ISBN 9781468605716, DOI: 10.4271/9781468605709)
Book Synopsis Cost, Effectiveness, and Deployment of Fuel Economy Technologies for Light-Duty Vehicles by : National Research Council
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.
Book Synopsis The Effects of Exhaust Gas Recirculation on Combustion and Emissions in an Air-cooled Utility Engine by : Nathan Jon Haugle
Download or read book The Effects of Exhaust Gas Recirculation on Combustion and Emissions in an Air-cooled Utility Engine written by Nathan Jon Haugle and published by . This book was released on 2006 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
