Modeling and Control of EGR on Marine Two-Stroke Diesel Engines

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Publisher : Linköping University Electronic Press
ISBN 13 : 9176853683
Total Pages : 48 pages
Book Rating : 4.1/5 (768 download)

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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.

Two-Stroke Cycle Engine

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Author :
Publisher : Routledge
ISBN 13 : 1351406450
Total Pages : 425 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Two-Stroke Cycle Engine by : JohnB. Heywood

Download or read book Two-Stroke Cycle Engine written by JohnB. Heywood and published by Routledge. This book was released on 2017-11-01 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the two-stroke cycle internal combustion engine, used in compact, lightweight form in everything from motorcycles to chainsaws to outboard motors, and in large sizes for marine propulsion and power generation. It first provides an overview of the principles, characteristics, applications, and history of the two-stroke cycle engine, followed by descriptions and evaluations of various types of models that have been developed to predict aspects of two-stroke engine operation.

Internal Flow

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Publisher : Cambridge University Press
ISBN 13 : 1139451111
Total Pages : 739 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Internal Flow by : E. M. Greitzer

Download or read book Internal Flow written by E. M. Greitzer and published by Cambridge University Press. This book was released on 2007-02-26 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the analysis and behaviour of internal flows encountered in propulsion systems, fluid machinery (compressors, turbines and pumps) and ducts (diffusers, nozzles and combustion chambers). The focus is on phenomena that are important in setting the performance of a broad range of fluid devices. The authors show that even for complex processes one can learn a great deal about the behaviour of such devices from a clear understanding and rigorous use of basic principles. Throughout the book they illustrate theoretical principles by reference to technological applications. The strong emphasis on fundamentals, however, means that the ideas presented can be applied beyond internal flow to other types of fluid motion. The book equips students and practising engineers with a range of new analytical tools. These tools offer enhanced interpretation and application of both experimental measurements and the computational procedures that characterize modern fluids engineering.

Handbook of Diesel Engines

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Publisher : Springer Science & Business Media
ISBN 13 : 3540890831
Total Pages : 632 pages
Book Rating : 4.5/5 (48 download)

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Book Synopsis Handbook of Diesel Engines by : Klaus Mollenhauer

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.

Pounder's Marine Diesel Engines and Gas Turbines

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Publisher : Butterworth-Heinemann
ISBN 13 : 0081027850
Total Pages : 958 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Pounder's Marine Diesel Engines and Gas Turbines by : Malcolm Latarche

Download or read book Pounder's Marine Diesel Engines and Gas Turbines written by Malcolm Latarche and published by Butterworth-Heinemann. This book was released on 2020-12-01 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pounder's Marine Diesel Engines and Gas Turbines, Tenth Edition, gives engineering cadets, marine engineers, ship operators and managers insights into currently available engines and auxiliary equipment and trends for the future. This new edition introduces new engine models that will be most commonly installed in ships over the next decade, as well as the latest legislation and pollutant emissions procedures. Since publication of the last edition in 2009, a number of emission control areas (ECAs) have been established by the International Maritime Organization (IMO) in which exhaust emissions are subject to even more stringent controls. In addition, there are now rules that affect new ships and their emission of CO2 measured as a product of cargo carried. - Provides the latest emission control technologies, such as SCR and water scrubbers - Contains complete updates of legislation and pollutant emission procedures - Includes the latest emission control technologies and expands upon remote monitoring and control of engines

Applied mechanics reviews

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Publisher :
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Applied mechanics reviews by :

Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Annual Index/abstracts of SAE Technical Papers

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Publisher :
ISBN 13 :
Total Pages : 912 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Annual Index/abstracts of SAE Technical Papers by :

Download or read book Annual Index/abstracts of SAE Technical Papers written by and published by . This book was released on 2001 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Annual Index/abstracts of SAE Technical Papers 2004

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Author :
Publisher :
ISBN 13 : 9780768015577
Total Pages : 962 pages
Book Rating : 4.0/5 (155 download)

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Book Synopsis Annual Index/abstracts of SAE Technical Papers 2004 by :

Download or read book Annual Index/abstracts of SAE Technical Papers 2004 written by and published by . This book was released on 2005 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technical Literature Abstracts

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Publisher :
ISBN 13 :
Total Pages : 664 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Technical Literature Abstracts by : Society of Automotive Engineers

Download or read book Technical Literature Abstracts written by Society of Automotive Engineers and published by . This book was released on 1998 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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Publisher :
ISBN 13 :
Total Pages : 1026 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on with total page 1026 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Charging the Internal Combustion Engine

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Publisher : Springer Science & Business Media
ISBN 13 : 3211471138
Total Pages : 283 pages
Book Rating : 4.2/5 (114 download)

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Book Synopsis Charging the Internal Combustion Engine by : Hermann Hiereth

Download or read book Charging the Internal Combustion Engine written by Hermann Hiereth and published by Springer Science & Business Media. This book was released on 2007-11-04 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all aspects of supercharging internal combustion engines. It details charging systems and components, the theoretical basic relations between engines and charging systems, as well as layout and evaluation criteria for best interaction. Coverage also describes recent experiences in design and development of supercharging systems, improved graphical presentations, and most advanced calculation and simulation tools.

Shipbuilding & Marine Engineering International

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Publisher :
ISBN 13 :
Total Pages : 538 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Shipbuilding & Marine Engineering International by :

Download or read book Shipbuilding & Marine Engineering International written by and published by . This book was released on 1928 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Oil in the Sea III

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Publisher : National Academies Press
ISBN 13 : 0309084385
Total Pages : 278 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Oil in the Sea III by : National Research Council

Download or read book Oil in the Sea III written by National Research Council and published by National Academies Press. This book was released on 2003-03-14 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the early 1970s, experts have recognized that petroleum pollutants were being discharged in marine waters worldwide, from oil spills, vessel operations, and land-based sources. Public attention to oil spills has forced improvements. Still, a considerable amount of oil is discharged yearly into sensitive coastal environments. Oil in the Sea provides the best available estimate of oil pollutant discharge into marine waters, including an evaluation of the methods for assessing petroleum load and a discussion about the concerns these loads represent. Featuring close-up looks at the Exxon Valdez spill and other notable events, the book identifies important research questions and makes recommendations for better analysis ofâ€"and more effective measures againstâ€"pollutant discharge. The book discusses: Inputâ€"where the discharges come from, including the role of two-stroke engines used on recreational craft. Behavior or fateâ€"how oil is affected by processes such as evaporation as it moves through the marine environment. Effectsâ€"what we know about the effects of petroleum hydrocarbons on marine organisms and ecosystems. Providing a needed update on a problem of international importance, this book will be of interest to energy policy makers, industry officials and managers, engineers and researchers, and advocates for the marine environment.

Maritime Information Review

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Publisher :
ISBN 13 :
Total Pages : 744 pages
Book Rating : 4.3/5 (5 download)

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Book Synopsis Maritime Information Review by :

Download or read book Maritime Information Review written by and published by . This book was released on 2000 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Diesel Engine Reference Book

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Publisher : Butterworth-Heinemann
ISBN 13 :
Total Pages : 712 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Diesel Engine Reference Book by : Bernard Challen

Download or read book Diesel Engine Reference Book written by Bernard Challen and published by Butterworth-Heinemann. This book was released on 1999 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference work covering the design and applications of diesel engines of all sizes. The text uses easily understood language and a practical approach to explore aspects of diesel engineering such as thermodynamics modelling, long-term use, applications and condition monitoring.

Publications

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Publisher :
ISBN 13 :
Total Pages : 566 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Publications by : Diesel Engineers and Users Association

Download or read book Publications written by Diesel Engineers and Users Association and published by . This book was released on 1954 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The British Motor Ship

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Publisher :
ISBN 13 :
Total Pages : 548 pages
Book Rating : 4.U/5 (183 download)

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Book Synopsis The British Motor Ship by :

Download or read book The British Motor Ship written by and published by . This book was released on 1928 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: