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Experimental And Numerical Study Of Swirling Flow In Scavenging Process For 2 Stroke Marine Diesel Engines
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Book Synopsis Experimental and Numerical Study of Swirling Flow in Scavenging Process for 2-stroke Marine Diesel Engines by : Sajjad Haider
Download or read book Experimental and Numerical Study of Swirling Flow in Scavenging Process for 2-stroke Marine Diesel Engines written by Sajjad Haider and published by . This book was released on with total page 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 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:
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:
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:
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 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Combustion Technologies for Low Carbon Emissions by : Jun Li
Download or read book Advanced Combustion Technologies for Low Carbon Emissions written by Jun Li and published by Frontiers Media SA. This book was released on 2023-07-10 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigations of the Turbelent Swirling Flow in a Two-stroke Marine Diesel Engine by : Kristian Mark Ingvorsen
Download or read book Investigations of the Turbelent Swirling Flow in a Two-stroke Marine Diesel Engine written by Kristian Mark Ingvorsen and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis Integrated analysis of the scavenging process in marine two-stroke diesel engines by : Fredrik Herland Andersen
Download or read book Integrated analysis of the scavenging process in marine two-stroke diesel engines written by Fredrik Herland Andersen and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigations of the Turbelent Swirling Flow in a Two-stroke Marine Diesel Engine by : Kristian Mark Ingvorsen
Download or read book Investigations of the Turbelent Swirling Flow in a Two-stroke Marine Diesel Engine written by Kristian Mark Ingvorsen and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Numerical Investigations of Sprays in Two Stroke Diesel Engines by : Bjarke Skovgård Dam
Download or read book Experimental and Numerical Investigations of Sprays in Two Stroke Diesel Engines written by Bjarke Skovgård Dam and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of the Swirl Motion in Direct Injection Diesel Engines Under Steady State Flow Conditions (by Laser Doppler Anemometer) by : P. Snauwaert
Download or read book Experimental Study of the Swirl Motion in Direct Injection Diesel Engines Under Steady State Flow Conditions (by Laser Doppler Anemometer) written by P. Snauwaert and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Experimental and Numerical Study of Residence Time and Mixing Characteristics of a Full Flow Dilution Tunnel by : Sunil Katragadda
Download or read book An Experimental and Numerical Study of Residence Time and Mixing Characteristics of a Full Flow Dilution Tunnel written by Sunil Katragadda and published by . This book was released on 1997 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Japanese Technical Abstracts written by and published by . This book was released on 1988 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rapport by : Fredrik Herland Andersen
Download or read book Rapport written by Fredrik Herland Andersen and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Swirling Port-valve-cylinder Flow in Diesel Engines by : S. Aita
Download or read book Numerical Simulation of Swirling Port-valve-cylinder Flow in Diesel Engines written by S. Aita and published by . This book was released on 1991 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: