Modeling Superheated Fuel Sprays and Vaporization for GDI Engines Using Single- and Multi-component Fuel Models

Modeling Superheated Fuel Sprays and Vaporization for GDI Engines Using Single- and Multi-component Fuel Models PDF Author: André Marques Gomes
Publisher:
ISBN:
Category :
Languages : en
Pages : 372

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Modeling Superheated Fuel Sprays and Vaporization for GDI Engines Using Single- and Multi-component Fuel Models

Modeling Superheated Fuel Sprays and Vaporization for GDI Engines Using Single- and Multi-component Fuel Models PDF Author: André Marques Gomes
Publisher:
ISBN:
Category :
Languages : en
Pages : 372

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Book Description


1D and Multi-D Modeling Techniques for IC Engine Simulation

1D and Multi-D Modeling Techniques for IC Engine Simulation PDF Author: Angelo Onorati
Publisher: SAE International
ISBN: 0768099528
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.

Simulation and Optimization of Internal Combustion Engines

Simulation and Optimization of Internal Combustion Engines PDF Author: Zhiyu Han
Publisher: SAE International
ISBN: 1468604007
Category : Technology & Engineering
Languages : en
Pages : 372

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Book Description
Simulation and Optimization of Internal Combustion Engines provides the fundamentals and up-to-date progress in multidimensional simulation and optimization of internal combustion engines. While it is impossible to include all the models in a single book, this book intends to introduce the pioneer and/or the often-used models and the physics behind them providing readers with ready-to-use knowledge. Key issues, useful modeling methodology and techniques, as well as instructive results, are discussed through examples. Readers will understand the fundamentals of these examples and be inspired to explore new ideas and means for better solutions in their studies and work. Topics include combustion basis of IC engines, mathematical descriptions of reactive flow with sprays, engine in-cylinder turbulence, fuel sprays, combustions and pollutant emissions, optimization of direct-injection gasoline engines, and optimization of diesel and alternative fuel engines.

Modeling Engine Spray and Combustion Processes

Modeling Engine Spray and Combustion Processes PDF Author: Gunnar Stiesch
Publisher: Springer Science & Business Media
ISBN: 3662087901
Category : Computers
Languages : en
Pages : 293

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Book Description
The utilization of mathematical models to numerically describe the performance of internal combustion engines is of great significance in the development of new and improved engines. Today, such simulation models can already be viewed as standard tools, and their importance is likely to increase further as available com puter power is expected to increase and the predictive quality of the models is constantly enhanced. This book describes and discusses the most widely used mathematical models for in-cylinder spray and combustion processes, which are the most important subprocesses affecting engine fuel consumption and pollutant emissions. The relevant thermodynamic, fluid dynamic and chemical principles are summarized, and then the application of these principles to the in-cylinder processes is ex plained. Different modeling approaches for the each subprocesses are compared and discussed with respect to the governing model assumptions and simplifica tions. Conclusions are drawn as to which model approach is appropriate for a specific type of problem in the development process of an engine. Hence, this book may serve both as a graduate level textbook for combustion engineering stu dents and as a reference for professionals employed in the field of combustion en gine modeling. The research necessary for this book was carried out during my employment as a postdoctoral scientist at the Institute of Technical Combustion (ITV) at the Uni versity of Hannover, Germany and at the Engine Research Center (ERC) at the University of Wisconsin-Madison, USA.

Mixture Formation in Internal Combustion Engines

Mixture Formation in Internal Combustion Engines PDF Author: Carsten Baumgarten
Publisher: Springer Science & Business Media
ISBN: 3540308369
Category : Technology & Engineering
Languages : en
Pages : 312

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Book Description
A systematic control of mixture formation with modern high-pressure injection systems enables us to achieve considerable improvements of the combustion pr- ess in terms of reduced fuel consumption and engine-out raw emissions. However, because of the growing number of free parameters due to more flexible injection systems, variable valve trains, the application of different combustion concepts within different regions of the engine map, etc., the prediction of spray and m- ture formation becomes increasingly complex. For this reason, the optimization of the in-cylinder processes using 3D computational fluid dynamics (CFD) becomes increasingly important. In these CFD codes, the detailed modeling of spray and mixture formation is a prerequisite for the correct calculation of the subsequent processes like ignition, combustion and formation of emissions. Although such simulation tools can be viewed as standard tools today, the predictive quality of the sub-models is c- stantly enhanced by a more accurate and detailed modeling of the relevant pr- esses, and by the inclusion of new important mechanisms and effects that come along with the development of new injection systems and have not been cons- ered so far. In this book the most widely used mathematical models for the simulation of spray and mixture formation in 3D CFD calculations are described and discussed. In order to give the reader an introduction into the complex processes, the book starts with a description of the fundamental mechanisms and categories of fuel - jection, spray break-up, and mixture formation in internal combustion engines.

Superheated Steam Drying

Superheated Steam Drying PDF Author: Mukund Haribhau Bade
Publisher: CRC Press
ISBN: 104014781X
Category : Science
Languages : en
Pages : 207

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Book Description
Superheated steam drying (SSD) has long been recognized for several major advantages it offers over other convective dryers, including high energy efficiency by utilization of energy in the exhaust steam, higher product quality due to the absence of oxygen, and avoidance of fire and explosion hazards. Offering a global critical overview of the current state of art, Superheated Steam Drying: Technology for Improved Sustainability and Quality assesses future needs and opportunities for industry adoption and further innovation in SSD. It covers SSD technologies for various industrial sectors and mathematical modeling approaches to help with design and scale-up. The effects of SSD on drying kinetics as well as product quality are also discussed with examples. This book serves as a useful reference for technicians, graduate students, and researchers in the field of drying technology. It can also be used in courses on industrial drying, processing and drying of food, advanced drying technology, and superheated steam drying.

38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-4150 - 02-4199

38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-4150 - 02-4199 PDF Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 624

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Book Description


CFD Modeling and Simulation in Materials Processing 2018

CFD Modeling and Simulation in Materials Processing 2018 PDF Author: Laurentiu Nastac
Publisher: Springer
ISBN: 3319720597
Category : Technology & Engineering
Languages : en
Pages : 240

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Book Description
This collection presents contributions on computational fluid dynamics (CFD) modeling and simulation of engineering processes from researchers and engineers involved in the modeling of multiscale and multiphase phenomena in material processing systems. The following processes are covered: Additive Manufacturing (Selective Laser Melting and Laser Powder Bed Fusion); Ironmaking and Steelmaking (Ladle Metallurgical Furnace, EAF, Continuous Casting, Blown Converter, Reheating Furnace, Rotary Hearth Furnace); Degassing; High Pressure Gas Atomization of Liquid Metals; Electroslag Remelting; Electrokinetic Deposition; Friction Stir Welding; Quenching; High Pressure Die Casting; Core Injection Molding; Evaporation of Metals; Investment Casting; Electromagnetic Levitation; Ingot Casting; Casting and Solidification with External Field (electromagnetic stirring and ultrasonic cavitation) Interaction and Microstructure Evolution The collection also covers applications of CFD to engineering processes, and demonstrates how CFD can help scientists and engineers to better understand the fundamentals of engineering processes.

Droplets and Sprays: Simple Models of Complex Processes

Droplets and Sprays: Simple Models of Complex Processes PDF Author: Sergei S. Sazhin
Publisher: Springer Nature
ISBN: 3030997464
Category : Technology & Engineering
Languages : en
Pages : 603

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Book Description
This book acts as a guide to simple models that describe some of the complex fluid dynamics, heat/mass transfer and combustion processes in droplets and sprays. Attention is focused mainly on the use of classical hydrodynamics, and a combination of kinetic and hydrodynamic models, to analyse the heating and evaporation of mono- and multi-component droplets. The models were developed for cases when small and large numbers of components are present in droplets. Some of these models are used for the prediction of time to puffing/micro-explosion of composite water/fuel droplets — processes that are widely used in combustion devices to stimulate disintegration of relatively large droplets into smaller ones. The predictions of numerical codes based on these models are validated against experimental results where possible. In most of the models, droplets are assumed to be spherical; some preliminary results of the generalisation of these models to the case of non-spherical droplets, approximating them as spheroids, are presented.

Flow and Heat or Mass Transfer in the Chemical Process Industry

Flow and Heat or Mass Transfer in the Chemical Process Industry PDF Author: Dimitrios V. Papavassiliou
Publisher: MDPI
ISBN: 303897238X
Category : Technology & Engineering
Languages : en
Pages : 215

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Book Description
This book is a printed edition of the Special Issue "Flow and Heat or Mass Transfer in the Chemical Process Industry" that was published in Fluids