Numerical Investigation Of Spray Characterization Of Heater Gdi System
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Numerical Investigation Of Spray Characterization Of Heater Gdi System
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Author :
language : en
Publisher:
Release Date : 2020
Numerical Investigation Of Spray Characterization Of Heater Gdi System written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Abstract : Gasoline engines require fuel enrichment at low temperature cranking (cold start) conditions for efficient engine operation. Since the amount of fuel injected is high at cold start to compensate low fuel evaporation, fuel sprays tend to impinge on the cold surfaces of the piston and cylinder walls leading to the formation of excessive unburned hydrocarbons. One of the ways to ensure reliable cold start performance and to reduce UHC emissions is to have the fuel subjected to preheating. The objective of this study is to investigate the effects of fuel preheating on Gasoline Direct Injection sprays to improve the mixture preparation during the cold start conditions. Injection of fuel sprays of neat gasoline and gasoline-ethanol blends (E10 and E85) from the heater-injector into a constant volume combustion chamber was studied. Computational Fluid Dynamics (CFD) simulations of the fuel flow through the injector were performed to understand the impact of the heater in improving the mixture preparation quality. The gasoline was modelled with 14 component surrogate fuel model to capture its physical properties and distillation characteristics. Fuel spray processes in the Constant Volume Combustion Chamber (CVCC) were simulated using an in-house CFD code, MTU-KIVA. Parametric simulations were performed at different injection pressures and at a wide range of fuel temperature ranging from -6°C to 250°C. The simulation of injector internal flow could improve the spray simulations in the CVCC by providing accurate velocity and temperature distributions of fuel sprays at the exit of individual nozzles. The results show that the injector with the preheating system performs reliably at cold start conditions to increase the fuel temperature from -6°C to 75°C in less than a second. The spray were in good agreement between the measurements and predictions. For the given operating range, the spray changes from normal evaporation to flash boiling regime. The model captures the spray collapsing behaviour for the flash boiling conditions. However, the model tends to over-predict the spray penetration for fuel temperatures in the higher range of boiling/flash boiling, regardless of the injection pressure variation.
Technical Literature Abstracts
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Author : Society of Automotive Engineers
language : en
Publisher:
Release Date : 2000
Technical Literature Abstracts written by Society of Automotive Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Technical literature categories.
Annual Index Abstracts Of Sae Technical Papers
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Author :
language : en
Publisher:
Release Date : 2006
Annual Index Abstracts Of Sae Technical Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Automobiles categories.
Proceedings Of China Sae Congress 2021 Selected Papers
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Author : China Society of Automotive Engineers
language : en
Publisher: Springer Nature
Release Date : 2022-10-22
Proceedings Of China Sae Congress 2021 Selected Papers written by China Society of Automotive Engineers and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-22 with Technology & Engineering categories.
These proceedings gather outstanding papers presented at the China SAE Congress 2021, held on Oct. 19-21, Shanghai, China. Featuring contributions mainly from China, the biggest carmaker as well as most dynamic car market in the world, the book covers a wide range of automotive-related topics and the latest technical advances in the industry. Many of the approaches in the book will help technicians to solve practical problems that affect their daily work. In addition, the book offers valuable technical support to engineers, researchers and postgraduate students in the field of automotive engineering.
Gasoline Direct Injection Engine And Spark Ignition Performance
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Author : Society of Automotive Engineers
language : en
Publisher:
Release Date : 2003
Gasoline Direct Injection Engine And Spark Ignition Performance written by Society of Automotive Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Automobiles categories.
Introduction To Internal Combustion Engines
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Author : Richard Stone
language : en
Publisher: Bloomsbury Publishing
Release Date : 2017-09-16
Introduction To Internal Combustion Engines written by Richard Stone and has been published by Bloomsbury Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-16 with Technology & Engineering categories.
Now in its fourth edition, this textbook remains the indispensable text to guide readers through automotive or mechanical engineering, both at university and beyond. Thoroughly updated, clear, comprehensive and well-illustrated, with a wealth of worked examples and problems, its combination of theory and applied practice aids in the understanding of internal combustion engines, from thermodynamics and combustion to fluid mechanics and materials science. This textbook is aimed at third year undergraduate or postgraduate students on mechanical or automotive engineering degrees. New to this Edition: - Fully updated for changes in technology in this fast-moving area - New material on direct injection spark engines, supercharging and renewable fuels - Solutions manual online for lecturers
Internal Combustion Engines
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Author : Institution of Mechanical Engineers
language : en
Publisher: Elsevier
Release Date : 2011-11-10
Internal Combustion Engines written by Institution of Mechanical Engineers and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-11-10 with Technology & Engineering categories.
This book contains the papers of the Internal Combustion Engines: Performance fuel economy and emissions conference, in the IMechE bi-annual series, held on the 29th and 30th November 2011. The internal combustion engine is produced in tens of millions per year for applications as the power unit of choice in transport and other sectors. It continues to meet both needs and challenges through improvements and innovations in technology and advances from the latest research. These papers set out to meet the challenges of internal combustion engines, which are greater than ever. How can engineers reduce both CO2 emissions and the dependence on oil-derivate fossil fuels? How will they meet the future, more stringent constraints on gaseous and particulate material emissions as set by EU, North American and Japanese regulations? How will technology developments enhance performance and shape the next generation of designs? This conference looks closely at developments for personal transport applications, though many of the drivers of change apply to light and heavy duty, on and off highway, transport and other sectors. - Aimed at anyone with interests in the internal combustion engine and its challenges - The papers consider key questions relating to the internal combustion engine
Methanol
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Author : Angelo Basile
language : en
Publisher: Elsevier
Release Date : 2017-10-31
Methanol written by Angelo Basile and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-31 with Technology & Engineering categories.
Methanol: Science and Engineering provides a comprehensive review of the chemistry, properties, and current and potential uses and applications of methanol. Divided into four parts, the book begins with a detailed account of current production methods and their economics. The second part deals with the applications of methanol, providing useful insights into future applications. Modeling of the various reactor systems is covered in the next section, with final discussions in the book focusing on the economic and environmental impact of this chemical. Users will find this to be a must-have resource for all researchers and engineers studying alternative energy sources. - Provides the latest developments on methanol research - Reviews methanol production methods and their economics - Outlines the use of methanol as an alternative green transportation fuel - Includes new technologies and many new applications of methanol
Applied Mechanics Reviews
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Author :
language : en
Publisher:
Release Date : 2000
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Mechanics, Applied categories.
Chemical Abstracts
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Author :
language : en
Publisher:
Release Date : 2002
Chemical 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 2002 with Chemistry categories.