Multidimensional Modeling Of Combustion And Knock In Spark Ignition Engines With Detailed Chemical Kinetics
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Multidimensional Modeling Of Combustion And Knock In Spark Ignition Engines With Detailed Chemical Kinetics
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Author : Long Liang
language : en
Publisher:
Release Date : 2006
Multidimensional Modeling Of Combustion And Knock In Spark Ignition Engines With Detailed Chemical Kinetics written by Long Liang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
A Phenomenological Knock Model For The Development Of Future Engine Concepts
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Author : Alexander Fandakov
language : en
Publisher: Springer
Release Date : 2018-12-28
A Phenomenological Knock Model For The Development Of Future Engine Concepts written by Alexander Fandakov and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-28 with Technology & Engineering categories.
The majority of 0D/1D knock models available today are known for their poor accuracy and the great effort needed for their calibration. Alexander Fandakov presents a novel, extensively validated phenomenological knock model for the development of future engine concepts within a 0D/1D simulation environment that has one engine-specific calibration parameter. Benchmarks against the models commonly used in the automotive industry reveal the huge gain in knock boundary prediction accuracy achieved with the approach proposed in this work. Thus, the new knock model contributes substantially to the efficient design of spark ignition engines employing technologies such as full-load exhaust gas recirculation, water injection, variable compression ratio or lean combustion. About the Author Alexander Fandakov holds a PhD in automotive powertrain engineering from the Institute of Internal Combustion Engines and Automotive Engineering (IVK) at the University of Stuttgart, Germany. Currently, he is working as an advanced powertrain development engineer in the automotive industry.
Encyclopedia Of Automotive Engineering
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Author :
language : en
Publisher: John Wiley & Sons
Release Date : 2015-03-23
Encyclopedia Of Automotive Engineering written by and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-23 with Technology & Engineering categories.
Erstmals eine umfassende und einheitliche Wissensbasis und Grundlage für weiterführende Studien und Forschung im Bereich der Automobiltechnik. Die Encyclopedia of Automotive Engineering ist die erste umfassende und einheitliche Wissensbasis dieses Fachgebiets und legt den Grundstein für weitere Studien und tiefgreifende Forschung. Weitreichende Querverweise und Suchfunktionen ermöglichen erstmals den zentralen Zugriff auf Detailinformationen zu bewährten Branchenstandards und -verfahren. Zusammenhängende Konzepte und Techniken aus Spezialbereichen lassen sich so einfacher verstehen. Neben traditionellen Themen des Fachgebiets beschäftigt sich diese Enzyklopädie auch mit "grünen" Technologien, dem Übergang von der Mechanik zur Elektronik und den Möglichkeiten zur Herstellung sicherer, effizienterer Fahrzeuge unter weltweit unterschiedlichen wirtschaftlichen Rahmenbedingungen. Das Referenzwerk behandelt neun Hauptbereiche: (1) Motoren: Grundlagen; (2) Motoren: Design; (3) Hybrid- und Elektroantriebe; (4) Getriebe- und Antriebssysteme; (5) Chassis-Systeme; (6) Elektrische und elektronische Systeme; (7) Karosserie-Design; (8) Materialien und Fertigung; (9) Telematik. - Zuverlässige Darstellung einer Vielzahl von Spezialthemen aus dem Bereich der Automobiltechnik. - Zugängliches Nachschlagewerk für Jungingenieure und Studenten, die die technologischen Grundlagen besser verstehen und ihre Kenntnisse erweitern möchten. - Wertvolle Verweise auf Detailinformationen und Forschungsergebnisse aus der technischen Literatur. - Entwickelt in Zusammenarbeit mit der FISITA, der Dachorganisation nationaler Automobil-Ingenieur-Verbände aus 37 Ländern und Vertretung von über 185.000 Ingenieuren aus der Branche. - Erhältlich als stets aktuelle Online-Ressource mit umfassenden Suchfunktionen oder als Print-Ausgabe in sechs Bänden mit über 4.000 Seiten. Ein wichtiges Nachschlagewerk für Bibliotheken und Informationszentren in der Industrie, bei Forschungs- und Schulungseinrichtungen, Fachgesellschaften, Regierungsbehörden und allen Ingenieurstudiengängen. Richtet sich an Fachingenieure und Techniker aus der Industrie, Studenten höherer Semester und Studienabsolventen, Forscher, Dozenten und Ausbilder, Branchenanalysen und Forscher.
Natural Gas Engines
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Author : Kalyan Kumar Srinivasan
language : en
Publisher: Springer
Release Date : 2018-11-03
Natural Gas Engines written by Kalyan Kumar Srinivasan and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-03 with Technology & Engineering categories.
This book covers the various advanced reciprocating combustion engine technologies that utilize natural gas and alternative fuels for transportation and power generation applications. It is divided into three major sections consisting of both fundamental and applied technologies to identify (but not limited to) clean, high-efficiency opportunities with natural gas fueling that have been developed through experimental protocols, numerical and high-performance computational simulations, and zero-dimensional, multizone combustion simulations. Particular emphasis is placed on statutes to monitor fine particulate emissions from tailpipe of engines operating on natural gas and alternative fuels.
Modelling Spark Ignition Combustion
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Author : P. A. Lakshminarayanan
language : en
Publisher: Springer Nature
Release Date : 2024-05-15
Modelling Spark Ignition Combustion written by P. A. Lakshminarayanan and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-05-15 with Technology & Engineering categories.
The book provides a comprehensive overview of combustion models used in different types of spark ignition engines. In the first generation of spark ignition (SI) engines, the turbulence is created by the shear flow passing through the intake valves, and significantly decays during the intake and compression strokes. The residual turbulence enhances the laminar flame velocity, which is characteristic of the fuel and increases the relative effectiveness of the engine. In this simple two-zone model, the turbulence is estimated empirically; the spherical flame propagation model considers ignition delay, thermodynamics, heat transfer and chemical equilibrium, to obtain the performance and emissions of an SI engine. The model is used extensively by designers and research engineers to handle the fuel-air mixture prepared in the inlet and different geometries of open combustion chambers. The empiricism of the combustion model was progressively dismantled over the years. New 3D models for ignition considering the flow near a spark plug and flame propagation in the bulk gases were developed by incorporating solutions to Reynolds-averaged Navier-Stokes (RANS) equations for the turbulent flow with chemical reactions in the intense computational fluid dynamics. The models became far less empirical and enabled treating new generation direct-injection spark-ignition (DISI) gasoline and gas engines. The more complex layout of DISI engines with passive or active prechamber is successfully handled by them. This book presents details of models of SI engine combustion progressively increasing in complexity, making them accessible to designers, researchers, and even mechanical engineers who are curious to explore the field. This book is a valuable resource for anyone interested in spark ignition combustion.
Proceedings Of The 4th International Conference On Modelling And Optimisation Of Ship Energy Systems
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Author : Luca Oneto
language : en
Publisher: TU Delft OPEN Publishing
Release Date : 2024-08-22
Proceedings Of The 4th International Conference On Modelling And Optimisation Of Ship Energy Systems written by Luca Oneto and has been published by TU Delft OPEN Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-08-22 with Technology & Engineering categories.
MOSES 2023 has continually served as an influential platform, fostering innovation and discussions shaping maritime energy systems’ future. Last year’s conference expanded its scope to include topics reflecting the latest technological advances impacting our industry. Key discussions focused on reducing fuel consumption, minimizing environmental impacts, and optimizing lifecycle costs in ship design and operations amidst stringent regulations and fluctuating market conditions. MOSES 2023 provided a vibrant forum for sharing innovative research, practices, and policies, and the proceedings encompass contributions from academics, industry experts, and emerging researchers, spanning diverse topics such as system modelling, optimization, control, and environmental sustainability. Highlights from the conference included a new roundtable on Data and Digitalisation, which brought together leading figures from industry and academia to explore the integration of IoT, AI, and blockchain technologies in maritime operations. This discussion focused on challenges related to data privacy, integration, and cybersecurity, underpinning the strategic importance of digital technologies in enhancing operational efficiency and safety. We invite scholars, professionals, and enthusiasts in ship energy systems to explore these proceedings, encapsulating the insights and discussions from MOSES 2023.
Modeling Of End Gas Autoignition For Knock Prediction In Gasoline Engines
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Author : Andreas Manz
language : en
Publisher: Logos Verlag Berlin GmbH
Release Date : 2016-08-18
Modeling Of End Gas Autoignition For Knock Prediction In Gasoline Engines written by Andreas Manz and has been published by Logos Verlag Berlin GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-18 with Science categories.
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.
Multi Dimensional Engine Modeling 2005
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Author :
language : en
Publisher:
Release Date : 2005
Multi Dimensional Engine Modeling 2005 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Technology & Engineering categories.
... papers from the session Multi-Dimensional Engine Modeling, held during the SAE 2005 World Congress, April 11-14 in Detroit, MI, USA.
Erda Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1989
Erda Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Power resources categories.
Low Temperature Combustion And Autoignition
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Author : M.J. Pilling
language : en
Publisher: Elsevier
Release Date : 1997-11-27
Low Temperature Combustion And Autoignition written by M.J. Pilling and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-11-27 with Science categories.
Combustion has played a central role in the development of our civilization which it maintains today as its predominant source of energy. The aim of this book is to provide an understanding of both fundamental and applied aspects of low-temperature combustion chemistry and autoignition. The topic is rooted in classical observational science and has grown, through an increasing understanding of the linkage of the phenomenology to coupled chemical reactions, to quite profound advances in the chemical kinetics of both complex and elementary reactions. The driving force has been both the intrinsic interest of an old and intriguing phenomenon and the centrality of its applications to our economic prosperity. The volume provides a coherent view of the subject while, at the same time, each chapter is self-contained.