Turbulence Measurements in a Direct Injection Diesel Engine Combustion Chamber by Laser Doppler Velocimeter

Turbulence Measurements in a Direct Injection Diesel Engine Combustion Chamber by Laser Doppler Velocimeter PDF Author: Hironobu Ueki
Publisher:
ISBN:
Category : Diesel motor
Languages : en
Pages : 12

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Internal Combustion Engineering: Science & Technology

Internal Combustion Engineering: Science & Technology PDF Author: P.M. Weaving
Publisher: Springer Science & Business Media
ISBN: 9400907494
Category : Technology & Engineering
Languages : en
Pages : 874

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Book Description
Sir Diarmuid Downs, CBE, FEng, FRS Engineering is about designing and making marketable artefacts. The element of design is what principally distinguishes engineering from science. The engineer is a creator. He brings together knowledge and experience from a variety of sources to serve his ends, producing goods of value to the individual and to the community. An important source of information on which the engineer draws is the work of the scientist or the scientifically minded engineer. The pure scientist is concerned with knowledge for its own sake and receives his greatest satisfaction if his experimental observations fit into an aesthetically satisfying theory. The applied scientist or engineer is also concerned with theory, but as a means to an end. He tries to devise a theory which will encompass the known experimental facts, both because an all embracing theory somehow serves as an extra validation of the facts and because the theory provides us with new leads to further fruitful experimental investigation. I have laboured these perhaps rather obvious points because they are well exemplified in this present book. The first internal combustion engines, produced just over one hundred years ago, were very simple, the design being based on very limited experimental information. The current engines are extremely complex and, while the basic design of cylinder, piston, connecting rod and crankshaft has changed but little, the overall performance in respect of specific power, fuel economy, pollution, noise and cost has been absolutely transformed.

Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines

Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines PDF Author: Hua Zhao
Publisher: SAE International
ISBN: 0768057825
Category : Technology & Engineering
Languages : en
Pages : 373

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Book Description
The increasing concern about CO2 emissions and energy prices has led to new CO2 emission and fuel economy legislation being introduced in world regions served by the automotive industry. In response, automotive manufacturers and Tier-1 suppliers are developing a new generation of internal combustion (IC) engines with ultra-low emissions and high fuel efficiency. To further this development, a better understanding is needed of the combustion and pollutant formation processes in IC engines. As efficiency and emission abatement processes have reached points of diminishing returns, there is more of a need to make measurements inside the combustion chamber, where the combustion and pollutant formation processes take place. However, there is currently no good overview of how to make these measurements. Based on the author’s previous SAE book, Engine Combustion Instrumentation and Diagnostics, this book focuses on laser-based optical techniques for combustion flows and in-cylinder measurements. Included are new chapters on optical engines and optical equipment, case studies, and an updated description of each technique. The purpose of this book is to provide, in one publication, an introduction to experimental techniques that are best suited for in-cylinder engine combustion measurements. It provides sufficient details for readers to set up and apply these techniques to IC engines and combustion flows.

Measurement of Turbulent Flow in the Combustion Chamber of a Direct Injection Diesel Engine

Measurement of Turbulent Flow in the Combustion Chamber of a Direct Injection Diesel Engine PDF Author: Akira Murakami
Publisher:
ISBN:
Category : Diesel motor
Languages : en
Pages : 10

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Turbulence Measurements with a Laser Doppler Velocimeter

Turbulence Measurements with a Laser Doppler Velocimeter PDF Author: William Joseph Yanta
Publisher:
ISBN:
Category : Laser Doppler velocimeter
Languages : en
Pages : 104

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Book Description
Turbulence measurements with a Laser Doppler Velocimeter (LDV) using the dual scatter or differential Doppler mode have been made in a subsonic, fully developed channel flow. The measurements were made using only those light scattering particles occurring naturally in air. Results include mean velocity profiles, turbulence intensities, Reynolds stress distributions and a skewness measurement of the velocity distribution function across the channel. Statistical techniques were used to obtain the various turbulence parameters. Guidelines have been established for the amount of data needed to obtain results with a specified accuracy and confidence level. Measurements have also been made to determine the particle-size distribution. An aerodynamic means was used to determine the size distribution, in contrast to the usual optical procedures. (Modified author abstract).

Thermo-and Fluid-dynamic Processes in Diesel Engines

Thermo-and Fluid-dynamic Processes in Diesel Engines PDF Author: James H.W. Whitelaw
Publisher: Springer Science & Business Media
ISBN: 9783540426653
Category : Science
Languages : en
Pages : 460

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Book Description
This volume includes versions of papers selected from those presented at the THIESEL 2000 Conference on Thermofluidynamic Processes in Diesel Engines, held at the Universidad Politecnica de Valencia, during the period of September th th 13 to 15 , 2000. The papers are grouped into seven thematic areas: State of the Art and Prospective, Fuels for Diesel Engines, Injection System and Spray Formation, Combustion and Pollutant Formation, Modelling, Experimental Techniques, and Air Management. These areas cover most of the technologies and research strategies that may allow Light Duty and Heavy Duty Diesel engines to comply with current and forthcoming emission standards, while maintaining or improving fuel consumption. The main objectives of the conference were to bring together ideas and experience from Industry and Universities to facilitate interchange of information and to promote discussion of future research and development needs. The technical papers emphasised the use diagnostic and simulation techniques and their relationship to engineering practice and the advancement of the Diesel engine. We hope that this approach, which proved to be successful at the Conference, is reflected in this volume. We thank all those who contributed to the success of the Conference, and particularly the members of the Advisory Committee who assessed abstracts and chaired many of the technical sessions. Weare also grateful to participants who presented their work or contributed to the many discussions. Finally, the Conference benefitted from financial support from the organisations listed below and we are glad to have this opportunity to record our gratitude.

Engine Combustion Instrumentation and Diagnostics

Engine Combustion Instrumentation and Diagnostics PDF Author: Hua Zhao
Publisher: SAE International
ISBN: 0768040345
Category : Technology & Engineering
Languages : en
Pages : 854

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Book Description
This book provides a complete description of instrumentation and in-cylinder measurement techniques for internal combustion engines. Written primarily for researchers and engineers involved in advanced research and development of internal combustion engines, the book provides an introduction to the instrumentation and experimental techniques, with particular emphasis on diagnostic techniques for in-cylinder measurements.

Laser Doppler Velocimeter Measurements Within a Motored Direct-injection Spark-ignited Engine

Laser Doppler Velocimeter Measurements Within a Motored Direct-injection Spark-ignited Engine PDF Author: Michael Robert Hime
Publisher:
ISBN:
Category :
Languages : en
Pages : 254

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Proceedings of the Inspection, Measurement, and Control and Laser Diagnostics and Photochemistry

Proceedings of the Inspection, Measurement, and Control and Laser Diagnostics and Photochemistry PDF Author: Laser Institute of America
Publisher:
ISBN: 9780912035277
Category : Holography
Languages : en
Pages : 192

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International Conference on Combustion in Engineering

International Conference on Combustion in Engineering PDF Author: Institution of Mechanical Engineers (Great Britain). Automobile Division
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 412

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Book Description