Dynamic Modeling of the Thermal Process in Diesel Oxidation Catalytic Converters PDF Download
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Author: Lihua Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 196
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Book Description
Author: Lihua Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 196
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Book Description
Author: James H. Whitelaw
Publisher: Springer Science & Business Media
ISBN: 3662105020
Category : Technology & Engineering
Languages : en
Pages : 494
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Book Description
This is the second book edited with a selection of papers from the two-yearly THIESEL Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines, organised by CMT-Mvtores Termicos of the Universidad Po/itecnica de Valencia, Spain. This volume includes versions of papers selected from those presented at the THIESEL 2002 Conference th held on lOth to 13 September 2002. We hope it will be the second volume of a long series reflecting the quality of the THIESEL Conference. This year, the papers are grouped in six main thematic areas: State of the Art and Prospective, Injection Systems and Spray Formation, Combustion and Emissions, Engine Modelling, Alternative Combustion Concepts and Experimental Techniques. The actual conference covered a wider scope of topics, including Air Management and Fuels for Diesel Engines and a couple of papers included reflect this variety. However, the selection of papers published here represents the most current preoccupations of Diesel engine designers, namely how to improve the combustion process using new injection strategies and alternative concepts such as the Homogeneous Charge Combustion Ignition.
Author:
Publisher: Elsevier
ISBN: 0444634452
Category : Technology & Engineering
Languages : en
Pages : 2667
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Book Description
25th European Symposium on Computer-Aided Process Engineering contains the papers presented at the 12th Process Systems Engineering (PSE) and 25th European Society of Computer Aided Process Engineering (ESCAPE) Joint Event held in Copenhagen, Denmark, 31 May - 4 June 2015. The purpose of these series is to bring together the international community of researchers and engineers who are interested in computing-based methods in process engineering. This conference highlights the contributions of the PSE/CAPE community towards the sustainability of modern society. Contributors from academia and industry establish the core products of PSE/CAPE, define the new and changing scope of our results, and future challenges. Plenary and keynote lectures discuss real-world challenges (globalization, energy, environment, and health) and contribute to discussions on the widening scope of PSE/CAPE versus the consolidation of the core topics of PSE/CAPE. Highlights how the Process Systems Engineering/Computer-Aided Process Engineering community contributes to the sustainability of modern society Presents findings and discussions from both the 12th Process Systems Engineering (PSE) and 25th European Society of Computer-Aided Process Engineering (ESCAPE) Events Establishes the core products of Process Systems Engineering/Computer Aided Process Engineering Defines the future challenges of the Process Systems Engineering/Computer Aided Process Engineering community
Author: Society of Automotive Engineers
Publisher:
ISBN:
Category : Technical literature
Languages : en
Pages : 334
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Book Description
Author: Angelo Onorati
Publisher: SAE International
ISBN: 076809352X
Category : Technology & Engineering
Languages : en
Pages : 552
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Book Description
1D and Multi-D Modeling Techniques for IC Engine Simulation provides a description of the most significant and recent achievements in the field of 1D engine simulation models and coupled 1D-3D modeling techniques, including 0D combustion models, quasi-3D methods and some 3D model applications.
Author: Lino Guzzella
Publisher: Springer Science & Business Media
ISBN: 3662080036
Category : Technology & Engineering
Languages : en
Pages : 303
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Book Description
Internal combustion engines still have a potential for substantial improvements, particularly with regard to fuel efficiency and environmental compatibility. These goals can be achieved with help of control systems. Modeling and Control of Internal Combustion Engines (ICE) addresses these issues by offering an introduction to cost-effective model-based control system design for ICE. The primary emphasis is put on the ICE and its auxiliary devices. Mathematical models for these processes are developed in the text and selected feedforward and feedback control problems are discussed. The appendix contains a summary of the most important controller analysis and design methods, and a case study that analyzes a simplified idle-speed control problem. The book is written for students interested in the design of classical and novel ICE control systems.
Author: Stephen John Salomons
Publisher: Stephen Salomons
ISBN:
Category : Diesel fuels
Languages : en
Pages : 305
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
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Book Description
Author: Olivier Lepreux
Publisher: LAP Lambert Academic Publishing
ISBN: 9783843368483
Category :
Languages : en
Pages : 176
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Book Description
The problem studied in this book is the control of a DOC (Diesel Oxidation Catalyst) as used in aftertreatment systems of diesel vehicles. This system is inherently a distributed parameter system due to its elongated geometry where a gas stream is in contact with a distributed catalyst. A first contribution of the book is a model for the DOC system. It is obtained by successive simplifications justified either experimentally (from observations, estimates of orders of magnitudes) or by an analysis of governing equations (through asymptotic developments, change of variables). A second contribution is a combination of algorithms (feedback, feedforward, and synchronization) to control the thermal phenomena in the DOC. Both contributions have been tested and validated experimentally. Using the approach presented, it is possible to control, in real conditions, the outlet temperature of the DOC within +/-15K. This book is of particular interest for automotive practitioners who have to develop simple and efficient control algorithms. Academics and students will find an interesting application of control of distributed parameter systems.
Author: Raoul Holder
Publisher: Cuvillier Verlag
ISBN: 3736927282
Category : Technology & Engineering
Languages : en
Pages : 148
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Book Description
The complex interactions between chemical kinetics and transport phenomena of mass, momentum and energy lead to incomplete fuel combustion, which is the origin of pollutant formation of internal combustion engines. Vehicle exhaust gas emission control devices have continuously been improved to meet the constantly tightened standards. Three-way catalyst technology is extensively used for the purification of automotive exhaust gases, usually in combination with monolithic (honeycomb) reactors. A promising alternative to the time consuming and costly engine and vehicle experiments are catalytic reactor model. In this work a global reaction mechanism for three-way catalysts is developed including 16 reactions and 12 gas phase species. The reaction mechanism is combined with an empirical oxygen storage model and validated against a number of different real engine experiments carried out on both fresh (not aged) and aged catalysts. Once the mechanism is validated against the fresh system, the adaption to the aged system is achieved solely by the reduction of the available reactive surface area of the washcoat, without tuning the individual reaction parameters. Finally the parameter set of the aged system is used to simulate a FTP75 drive cycle and the results are compared to experimental data of the same catalyst without further tuning. First a transient one-dimensional catalyst model is derived in chapter 2. First a short introduction to the structure of monolithic reactors is given, followed by the introduction of the governing equations for catalytically reacting flows. Chapter 3 focuses on the relevant transport processes inside the monolithic reactor channel and the adequacy of the transport models applied here. Local distributions of Nusselt and Sherwood numbers inside a monolith channel are resolved using a two-dimensional model. The cases of non-reacting and reacting conditions at the channel wall are discussed and subsequently compared to according a priori correlations. The subject of chapter 4 is the development and validation of the reaction mechanism. An advanced multi-objective optimization algorithm is used to calibrate the kinetic parameters of the presented reaction mechanism (comprising 16 reactions) to match the conversion behavior of a fresh catalyst. The simulation results are compared with experimental data at different operating conditions. In a second step the kinetic model is then used to simulate the conversion behavior of an aged catalyst. The adaption of the kinetic model is achieved only by the reduction of the available surface area. Again the computed conversion characteristics are compared to measured data. Finally an empirical oxygen storage model is included. In chapter 5 the catalyst model for the aged system is used to predict the tailpipe emissions during real drive cycle conditions. Finally a catalyst design parameter study is presented as a typical application of the model within the development process of exhaust gas aftertreatment systems.
