Download or read book Determination of the Heat Release Distribution in Turbulent Flames by Chemiluminescence Imaging written by Martin Rolf Werner Lauer and published by . This book was released on 2011 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Heat Release Rate Distribution in Open Premixed Turbulent Flames by Acoustic Measurements written by Manjanatha Kumar Ramachandra and published by . This book was released on 1981 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Turbulent Premixed Flames written by Nedunchezhian Swaminathan and published by Cambridge University Press. This book was released on 2011-04-25 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: A work on turbulent premixed combustion is important because of increased concern about the environmental impact of combustion and the search for new combustion concepts and technologies. An improved understanding of lean fuel turbulent premixed flames must play a central role in the fundamental science of these new concepts. Lean premixed flames have the potential to offer ultra-low emission levels, but they are notoriously susceptible to combustion oscillations. Thus, sophisticated control measures are inevitably required. The editors' intent is to set out the modeling aspects in the field of turbulent premixed combustion. Good progress has been made on this topic, and this cohesive volume contains contributions from international experts on various subtopics of the lean premixed flame problem.

Download or read book High Performance Computing in Science and Engineering 16 written by Wolfgang E. Nagel and published by Springer. This book was released on 2017-01-11 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state-of-the-art in supercomputer simulation. It includes the latest findings from leading researchers using systems from the High Performance Computing Center Stuttgart (HLRS) in 2016. The reports cover all fields of computational science and engineering ranging from CFD to computational physics and from chemistry to computer science with a special emphasis on industrially relevant applications. Presenting findings of one of Europe’s leading systems, this volume covers a wide variety of applications that deliver a high level of sustained performance. The book covers the main methods in high-performance computing. Its outstanding results in achieving the best performance for production codes are of particular interest for both scientists and engineers. The book comes with a wealth of color illustrations and tables of results.

Download or read book Modeling and Analysis of Chemiluminescence Sensing for Syngas Methane and Jet A Combustion written by Venkata Narasimham Nori and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Flame chemiluminescence has received increasing attention for its potential sensor and diagnostic applications in combustors. A number of studies have used flame chemiluminescence to monitor flame status, and combustor performance. While most of these studies have been empirical in nature, chemiluminescence modeling has the potential to provide a better understanding of the chemiluminescence processes and their dependence on various combustion operating conditions. The primary objective of this research was to identify and validate the important chemiluminescence reaction mechanisms for OH*, CH* and CO2*. To this end, measurements were performed at various operating conditions, primarily in laminar, premixed flames, fueled with methane, syngas (H2/CO) and Jet-A. The results are compared to 1-d laminar flame simulations employing the chemiluminescence mechanisms. The secondary objective was to use the experiments and validated chemiluminescence reaction mechanisms to evaluate the usefulness of flame chemiluminescence as a combustion diagnostic, particularly for heat release rate and equivalence ratio.

Download or read book Application of Crossed plane Imaging for Three dimensional Analysis of Premixed Turbulent Flames written by Darin Alan Knaus and published by . This book was released on 2003 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Heat Release Determination for Flame Holding in Gaseous Mixtures written by H.J. Buttner and published by . This book was released on 1948 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Spectroscopy of Flames written by A. Gaydon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Experimental Examination of the Relationship Between Chemiluminescent Light Emissions and Heat release Rate Under Non Adiabatic Conditions written by L. C. Haber and published by . This book was released on 2001 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion instability research has matured over the last decade and with it the need for more detailed diagnostics has increased. One main gap in the diagnostics is the ability to obtain a reliable quantitative measure of unsteady heat-release rate. In an effort to move in this direction using chemiluminescence as the measured quantity, this paper examines the formation of chemiluminescence light in premixed flames under non-adiabatic conditions. The main chemiluminescence emitters considered in the study are OH and CH. Experimental results for two types of burners are reported, a laminar Bunsen burner with co-flow and a ceramic honeycomb flat flame burner. The study shows that although the chemiluminescence observed in the two burners behaves very differently with respect to changes in experimental variables, the variation can be fully understood. OH chemiluminescence is found to be a good indicator of heat-release in both burners, whereas CH chemiluminescence is shown to be insensitive to some changes in heat- release rate. Based on the experimental results, the notion that chemiluminescence yield behaves linearly with flow rate cannot be universally supported. The non-linear variation observed is shown to correspond to an equally non- linear variation of heat-release with flow-rate. The results of the study thus have important ramifications for the interpretation of chemiluminescence measurements in dynamic combustion environments.

Download or read book Laser Diagnostics for Combustion Temperature and Species written by Alan C. Eckbreth and published by CRC Press. This book was released on 1996-10-10 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Turbulent Combustion written by Norbert Peters and published by Cambridge University Press. This book was released on 2000-08-15 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The combustion of fossil fuels remains a key technology for the foreseeable future. It is therefore important that we understand the mechanisms of combustion and, in particular, the role of turbulence within this process. Combustion always takes place within a turbulent flow field for two reasons: turbulence increases the mixing process and enhances combustion, but at the same time combustion releases heat which generates flow instability through buoyancy, thus enhancing the transition to turbulence. The four chapters of this book present a thorough introduction to the field of turbulent combustion. After an overview of modeling approaches, the three remaining chapters consider the three distinct cases of premixed, non-premixed, and partially premixed combustion, respectively. This book will be of value to researchers and students of engineering and applied mathematics by demonstrating the current theories of turbulent combustion within a unified presentation of the field.

Download or read book Heat Transfer in Flames written by Naim Afgan and published by . This book was released on 1974 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of Rayleigh Scattering to Turbulent Flow with Heat Transfer and Combustion written by L. Talbot and published by . This book was released on 1987 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive investigation has been carried out of the structure and statistical properties of unconfined turbulent flames, both V-shaped and conical. Measurement techniques included conditioned velocity measurements using two component LDV, flow visualization techniques, and Rayleigh scattering. Additionally, a new time resolved technique, LARS(Linear Array for Rayleigh Scattering) was developed which makes possible the determination of the instantaneous location of the flame sheet within the turbulent flame brush. A major objective of these flame studies was to access the appropriateness of models such as the Bray-Moss-Libby (BLM) model for describing the structure of planar turbulent combustion zones. The results of these investigation have revealed that many of the predictions of the BML model accord reasonably well with experimental observations, although some of the constants chosen in the theory are not verified experimentally. Agreement is better for the V-shaped planar flame than for the conical flame, particularly in the vicinity of the flame tip. Studies of the flame stabilization region in the wake of flameholders showed evidence of vortex shedding in the wake and of diminished fluctuation intensity with increased heat release. It was also observed that reaction in the shear layer bounding the recirculating products does not occur until a finite distance downstream of the flameholder. This observation is confirmed by CH fluorescence imaging of the flame region.

Download or read book Advanced Turbulent Combustion Physics and Applications written by N. Swaminathan and published by Cambridge University Press. This book was released on 2022-01-06 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore a thorough overview of the current knowledge, developments and outstanding challenges in turbulent combustion and application.

Download or read book The Use of Chemiluminescence for the Detection of Temperature and Fuel to air Ratio in Turbulent Premixed Flames written by James E. Reaney and published by . This book was released on 1992 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Rayleigh Index Measurement Techniques for Swirl stabilized Lean Premixed Combustion written by Benjamin Davidson Geraedts and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Measurement of Heat Flux in Turbulent Flames written by Paul Gerard Gladnick and published by . This book was released on 1990 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: