Engine Combustion Instrumentation and Diagnostics

Zhao has had 15 years experience with laser diagnostics in combustion flows, and Ladommatos (Brunel U.) as many with internal combustion engine research and diagnostics. They team up to bridge the gap between researchers in engine development and specialists in the development of diagnostic techniqu

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Engine Combustion Instrumentation and Diagnostics

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Reciprocating Engine Combustion Diagnostics

This book deals with in-cylinder pressure measurement and its post-processing for combustion quality analysis of conventional and advanced reciprocating engines. It offers insight into knocking and combustion stability analysis techniques and algorithms in SI, CI, and LTC engines, and places special emphasis on the digital signal processing of in-cylinder pressure signal for online and offline applications. The text gives a detailed description on sensors for combustion measurement, data acquisition, and methods for estimation of performance and combustion parameters. The information provided in this book enhances readers’ basic knowledge of engine combustion diagnostics and serves as a comprehensive, ready reference for a broad audience including graduate students, course instructors, researchers, and practicing engineers in the automotive, oil and other industries concerned with internal combustion engines.

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Applied Combustion Diagnostics

The editors have assembled a world-class group of contributors who address the questions the combustion diagnostic community faces. They are chemists who identify the species to be measured and the interfering substances that may be present; physicists, who push the limits of laser spectroscopy and laser devices and who conceive suitable measurement schemes; and engineers, who know combustion systems and processes. This book assists in providing guidance for the planning of combustion experiments, in judging research strategies and in conceiving new ideas for combustion research. It provides a snapshot of the available diagnostic methods and thier typical applications from the perspective of leading experts in the field.

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Nonlinear Systems and Circuits in Internal Combustion Engines

This brief provides an overview on the most relevant nonlinear phenomena in internal combustion engines with a particular emphasis on the use of nonlinear circuits in their modelling and control. The brief contains advanced methodologies —based on neural networks and soft-computing approaches among others— for the compensation of engine nonlinearities by using the combustion pressure signal and proposes several techniques for the reconstruction of this signal on the basis of different engine parameters, including engine-block vibration and crankshaft rotational speed. Another topic of the book is the diagnosis of the nonlinearities of injection systems and their balancing, which is a mandatory task for the new generation of gasoline direct injection engines. The authors come from both industrial and academic backgrounds, so the brief represents an important tool both for researchers and practitioners in the automotive industry.

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Combustion Characteristics of Turbo Charged DISI engines

In spite of progress in the development of alternative powertrain systems and energy sources, the internal combustion and all its derivates still are and will be the main powertrain for automobiles. In SI-engines, several approaches compete with each other like the controlled auto ignition (CAI or HCCI), throttle-free load control using variable valvetrains, stratified mixture formation with lean engine operation or highly turbo charged downsizing concepts all combined with gasoline direct injection. The presented work makes a contribution for a deeper understanding of the combustion process of a turbo charged direct injection engine operating with external EGR as well as lean stratified mixture. Using detailed test bench investigations and introducing a new optical measurement tool, the combustion process is described in detail focusing on the occurrence of non-premixed combustion phenomena. The influence of engine parameters like global and local air-/fuel ratio, external EGR and fuel rail pressure as well as the influence of fuel parameters are discussed giving a characterization of the combustion process of stratified engine operation. Furthermore, the influences of non-inert exhaust gas components on engine knock tendency are investigated using external EGR with an EGR catalyst. Opposing the results to numerical analysis, combustion characteristics of turbo charged DISI-engines are presented.

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Simulation and Modeling Methodologies Technologies and Applications

The present book includes a set of selected extended papers from the 4th International Conference on Simulation and Modeling Methodologies, Technologies and Applications (SIMULTECH 2014), held in Vienna, Austria, from 28 to 30 August 2014. The conference brought together researchers, engineers and practitioners interested in methodologies and applications of modeling and simulation. New and innovative solutions are reported in this book. SIMULTECH 2014 received 167 submissions, from 45 countries, in all continents. After a double blind paper review performed by the Program Committee, 23% were accepted as full papers and thus selected for oral presentation. Additional papers were accepted as short papers and posters. A further selection was made after the Conference, based also on the assessment of presentation quality and audience interest, so that this book includes the extended and revised versions of the very best papers of SIMULTECH 2014. Commitment to high quality standards is a major concern of SIMULTECH that will be maintained in the next editions, considering not only the stringent paper acceptance ratios but also the quality of the program committee, keynote lectures, participation level and logistics.

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Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines

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Advances in Fracture and Damage Mechanics VII

Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume is made up of contributions from researchers in 22 countries. It aims to promote exchange of the latest experimental and theoretical results on structural integrity, durability and failure analysis; with the emphasis on fracture and damage mechanics.

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Combustion and Flow Diagnostics

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Experimental Investigation of Multi mode Diesel Engine Combustion and Validation of Advanced Combustion Models

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Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division

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Development and Application of a Time and Space Resolved Optical Diagnostic for Soot Temperature and Concentration in a Spark ignited Direct injection Engine

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Homogeneous Charge Compression Ignition Engines 2007

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Residual Gas Effects on Combustion in an Air cooled Utility Engine

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Proceedings of the Fall Technical Conference of the ASME Internal Combustion Engine Division

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Technologies for Near zero emission Gasoline powered Vehicles

Dr. Fuquan (Frank) Zhao and experts in the field address a broad spectrum of key research and development issues in the rapidly progressing area of near-zero-emission gasoline-powered vehicles. Written in response to the increasingly stringent emissions legislation, this book provides the reader with a concise introduction to technology developments in near-zero-emission gasoline-powered vehicles. The material reflects global technical initiatives within the automotive and research communities. In all, this book contains more than 450 pages, with nearly 200 descriptive diagrams and/or images. It will serve as a valuable desk reference and provide the basics for those who are interested in understanding this advancing technology.

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Homogeneous Charge Compression Ignition HCCI

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Proceedings of the ASME Dynamic Systems and Control Division

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Optical Investigations of the Effects of Stratification on Homogeneous Charge Compression Ignition Combustion

The effects that thermal and compositional stratification have on homogeneous charge compression ignition (HCCI) combustion were studied using an optically accessible internal combustion engine. A stratified flowfield was developed in the engine by feeding each intake valve of the four-valve engine with independent intake systems. Planar laser-induced fluorescence (PLIF) of 3-pentanone that was introduced through only one intake valve indicated significant mixing between the two intake streams. A number of different intake-flow modifying devices were used in an attempt to maximize the amount of bulk stratification maintained throughout compression, but only when using top- and inside-directing intake baffles were significant improvements over a simple, straight-runner system observed. The bulk stratification maintained throughout compression, measured as the average deviation of the mean fluorescence profile from the mean homogeneous fluorescence profile, increased by 36% when using the topdirecting baffles and by 30% when using the inside-directing baffles compared to when using the same runner with no baffles. The combination of cylinder pressure, engine-out emissions, and high-speed chemiluminescence measurements were used to evaluate the effects that stratification had on HCCI combustion. The cylinder pressure and emissions data showed little-to-no difference when comparing the combustion under homogeneous operation to combustion under stratified operation at a constant location of peak pressure. Large differences, however, could be observed in the spatial progression of the HCCI combustion. Qualitative observations of the manner in which the combustion proceeded indicated that 60 K temperature stratification, 25% fuel concentration stratification, and 7 air-fuel ratio stratification all similarly affected the combustion progression. A dual-tracer PLIF temperature imaging technique was calibrated in situ and applied under motored and fired engine operation. I

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