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| Author | : Canada Centre for Mineral and Energy Technology |
| Publisher | : Canada Centre for Mineral and Energy Technology |
| Total Pages | : 33 |
| Release | : 1988 |
| Genre | : Laser spectroscopy |
| ISBN | : 9780660127408 |
| Author | : P. M. Hughes |
| Publisher | : |
| Total Pages | : 33 |
| Release | : 1986 |
| Genre | : |
| ISBN | : |
"A technique termed "coherent, anti-Stokes Raman spectroscopy" (CARS) has been developed at the Combustion and Carbonization Research Laboratory of CANMET's Energy Research Laboratories for the measurement of temperature and species concentration. The advantages of this technique over conventional probing methods are improved temporal and spatial resolution; it is nonintrusive and turbulence parameters can be determined. This report discusses the theoretical basis for such a technique and some of the practical considerations involved in the optical arrangement. To apply this technique successfully, it was necessary to develop sophisticated software and hardware. The incorporation of these and the optics into a CARS system is discussed, together with the theory of its application"--Abstract, p. iii.
| Author | : Canada Centre for Mineral and Energy Technology |
| Publisher | : |
| Total Pages | : 35 |
| Release | : 1987 |
| Genre | : |
| ISBN | : |
| Author | : National Aeronautics and Space Adm Nasa |
| Publisher | : Independently Published |
| Total Pages | : 50 |
| Release | : 2018-10-26 |
| Genre | : Science |
| ISBN | : 9781729298916 |
Under Contract NAS8-36861 sponsored by NASA Marshall Space Flight Center, the United Technologies Research Center is conducting an investigation of the feasibility of remote optical diagnostics to measure temperature, species concentration and velocity at the exit of the Space Shuttle Main Engine (SSME). This is a two phase study consisting of a conceptual design phase followed by a laboratory experimental investigation. The first task of the conceptual design studies is to screen and evaluate the techniques which can be used for the measurements. The second task is to select the most promising technique or techniques, if as expected, more than one type of measurement must be used to measure all the flow variables of interest. The third task is to examine in detail analytically the capabilities and limitations of the selected technique(s). The results of this study are described in the section of this report entitled Conceptual Design Investigations. The conceptual design studies identified spontaneous Raman scattering and photodissociative flow-tagging for measurements respectively of gas temperature and major species concentration and for velocity. These techniques and others that were considered are described in the section describing the conceptual design. The objective of the second phase of investigations was to investigate experimentally the techniques identified in the first phase. The first task of the experimental feasibility study is to design and assemble laboratory scale experimental apparatus to evaluate the best approaches for SSME exit optical diagnostics for temperature, species concentrations and velocity, as selected in the Phase I conceptual design study. The second task is to evaluate performance, investigate limitations, and establish actual diagnostic capabilities, accuracies and precision for the selected optical systems. The third task is to evaluate design requirements and system trade-offs of conceptual instruments. Spontaneous Raman scatt
| Author | : F. Culick |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 560 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 9400916205 |
This book contains selected papers prepared for the NATO Advanced Study Institute on "Unsteady Combustion", which was held in Praia da Granja, Portugal, 6-17 September 1993. Approximately 100 delegates from 14 countries attended. The Institute was the most recent in a series beginning with "Instrumentation for Combustion and Flow in Engines", held in Vimeiro, Portugal 1987 and followed by "Combusting Flow Diagnostics" conducted in Montechoro, Portugal in 1990. Together, these three Institutes have covered a wide range of experimental and theoretical topics arising in the research and development of combustion systems with particular emphasis on gas-turbine combustors and internal combustion engines. The emphasis has evolved roughly from instrumentation and experimental techniques to the mixture of experiment, theory and computational work covered in the present volume. As the title of this book implies, the chief aim of this Institute was to provide a broad sampling of problems arising with time-dependent behaviour in combustors. In fact, of course, that intention encompasses practically all possibilities, for "steady" combustion hardly exists if one looks sufficiently closely at the processes in a combustion chamber. The point really is that, apart from the excellent paper by Bahr (Chapter 10) discussing the technology of combustors for aircraft gas turbines, little attention is directed to matters of steady performance. The volume is divided into three parts devoted to the subjects of combustion-induced oscillations; combustion in internal combustion engines; and experimental techniques and modelling.
| Author | : Hua Zhao |
| Publisher | : SAE International |
| Total Pages | : 373 |
| Release | : 2012-07-30 |
| Genre | : Technology & Engineering |
| ISBN | : 0768057825 |
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.
| Author | : |
| Publisher | : |
| Total Pages | : 372 |
| Release | : 1994 |
| Genre | : Aeronautics |
| ISBN | : |
| Author | : Alan C. Eckbreth |
| Publisher | : CRC Press |
| Total Pages | : 636 |
| Release | : 1996-10-10 |
| Genre | : Technology & Engineering |
| ISBN | : 9789056995324 |
Focusing on spectroscopically-based, spatially-precise, laser techniques for temperature and chemical composition measurements in reacting and non-reacting flows, this book makes these powerful and important new tools in combustion research
| Author | : |
| Publisher | : |
| Total Pages | : 100 |
| Release | : 1978 |
| Genre | : Weights and measures |
| ISBN | : |
| Author | : Ronald D. Lucier |
| Publisher | : SPIE-International Society for Optical Engineering |
| Total Pages | : 606 |
| Release | : 1995 |
| Genre | : Science |
| ISBN | : |
SPIE Milestones are collections of seminal papers from the world literature covering important discoveries and developments in optics and photonics.
