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Author : Ardeshir Azarbarzin
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (853 download)
Download or read book A Study of Flame Extinction in a Vertical Flammability Tube written by Ardeshir Azarbarzin and published by . This book was released on 1981 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roger A. Strehlow
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (227 download)
Download or read book A Study of the Mechanism of Lean Limit Flammability written by Roger A. Strehlow and published by . This book was released on 1981 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study the mechanism of extinction of a lean limit flame in a premixed methane-air or propane-air system was studied in a vertical rectangular flammability tube with variable inside dimensions. Both upward and downward extinction were observed for methane while only upward extinction was studied for propane. In addition to the observations of extinction, a theoretical analysis of the flow ahead of the upward propagating flame was made which showed that at extinction the upward propagating flame is severely stretched in the Karlovitz sense. The upward propagating flame in the 50 x 50 mm tube had a stable hemispherical shape with a trailing skirt towards the walls. Extinction in this case occurred from the central holding region of the flame where the stretch was calculated to be the maximum. In larger than 50 x 50 mm tubes the flame is hydrodynamically unstable and extinction occurs on one of the instability cycles. The downward propagating flame in methane is almost flat in the tube but it propagates in an unstable manner. It was observed, both with image intensifier photographs and with a schlieren optics, that this flame extinguished by first losing heat to the walls. Thus the downward propagating flame is extinguished by heat loss mechanism coupled with a differential buoyancy driving mechanism which is sufficiently complex that it cannot be modeled using one dimensional heat loss theories.
Author : Yang Zhang
Publisher : Springer
ISBN 13 : 9811046158
Total Pages : 142 pages
Book Rating : 4.8/5 (11 download)
Download or read book Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames written by Yang Zhang and published by Springer. This book was released on 2017-07-18 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents pioneering experimental and numerical studies on three aspects of the combustion characteristics of lean premixed syngas/air flames, namely the laminar flame speed, extinction limit and flammability limit. It illustrates a new extinction exponent concept, which enriches the combustion theory. Above all, the book provides the following: a) a series of carefully measured data and theoretical analyses to reveal the intrinsic mechanisms of the fuel composition effect on the propagation and extinction of lean syngas/air flames; b) a mixing model and correlation to predict the laminar flame speed of multi-component syngas fuels, intended for engineering computations; c) a new “extinction exponent” concept to describe the critical effects of chemical kinetics on the extinction of lean premixed syngas/air flames; and d) the effects and mechanism of the dilution of incombustible components on lean premixed syngas/air flames and the preferential importance among the thermal, chemical and diffusion effects.
Author : Jozef Jarosinski
Publisher : CRC Press
ISBN 13 : 0849384095
Total Pages : 236 pages
Book Rating : 4.8/5 (493 download)
Download or read book Combustion Phenomena written by Jozef Jarosinski and published by CRC Press. This book was released on 2009-02-12 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensively using experimental and numerical illustrations, CombustionPhenomena: Selected Mechanisms of Flame Formation, Propagation, and Extinction provides a comprehensive survey of the fundamental processes of flame formation, propagation, and extinction. Taking you through the stages of combustion, leading experts visually display, mathematically explain, and clearly theorize on important physical topics of combustion. After a historical introduction to the field, they discuss combustion chemistry, flammability limits, and spark ignition. They also study counterflow twin-flame configuration, flame in a vortex core, the propagation characteristics of edge flames, instabilities, and tulip flames. In addition, the book describes flame extinction in narrow channels, global quenching of premixed flames by turbulence, counterflow premixed flame extinction limits, the interaction of flames with fluids in rotating vessels, and turbulent flames. The final chapter explores diffusion flames as well as combustion in spark- and compression-ignition engines. It also examines the transition from deflagration to detonation, along with the detonation wave structure. With downloadable resources of images that beautifully illustrate a range of combustion phenomena, this book facilitates a practical understanding of the processes occurring in the conception, spread, and extinguishment of a flame. It will help you on your way to finding solutions to real issues encountered in transportation, power generation, industrial processes, chemical engineering, and fire and explosion hazards.
Author :
Publisher :
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.F/5 ( download)
Download or read book Microgravity Science and Applications Program Tasks written by and published by . This book was released on 1987 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Howard D. Ross
Publisher : Elsevier
ISBN 13 : 0080549977
Total Pages : 601 pages
Book Rating : 4.0/5 (85 download)
Download or read book Microgravity Combustion written by Howard D. Ross and published by Elsevier. This book was released on 2001-09-03 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to understanding combustion, the burning of a substance that produces heat and often light, in microgravity environments-i.e., environments with very low gravity such as outer space. Readers are presented with a compilation of worldwide findings from fifteen years of research and experimental tests in various low-gravity environments, including drop towers, aircraft, and space.Microgravity Combustion is unique in that no other book reviews low- gravity combustion research in such a comprehensive manner. It provides an excellent introduction for those researching in the fields of combustion, aerospace, and fluid and thermal sciences. * An introduction to the progress made in understanding combustion in a microgravity environment* Experimental, theoretical and computational findings of current combustion research* Tutorial concepts, such as scaling analysis* Worldwide microgravity research findings
Author :
Publisher :
ISBN 13 :
Total Pages : 836 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (31 download)
Download or read book Fire Technology Abstracts written by and published by . This book was released on 1982 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (317 download)
Download or read book Microgravity Combustion Science written by and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kalyanasundaram Seshadri
Publisher :
ISBN 13 :
Total Pages : 682 pages
Book Rating : 4.:/5 (318 download)
Download or read book Studies of Flame Extinction written by Kalyanasundaram Seshadri and published by . This book was released on 1977 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hubert Frank Coward
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 ( download)
Download or read book Limits of Flammability of Gases and Vapors written by Hubert Frank Coward and published by . This book was released on 1952 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roger A. Strehlow
Publisher : McGraw-Hill Companies
ISBN 13 :
Total Pages : 586 pages
Book Rating : 4.3/5 (91 download)
Download or read book Combustion Fundamentals written by Roger A. Strehlow and published by McGraw-Hill Companies. This book was released on 1984 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael F. Modest
Publisher : Springer
ISBN 13 : 3319272918
Total Pages : 167 pages
Book Rating : 4.3/5 (192 download)
Download or read book Radiative Heat Transfer in Turbulent Combustion Systems written by Michael F. Modest and published by Springer. This book was released on 2016-01-06 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This introduction reviews why combustion and radiation are important, as well as the technical challenges posed by radiation. Emphasis is on interactions among turbulence, chemistry and radiation (turbulence-chemistry-radiation interactions – TCRI) in Reynolds-averaged and large-eddy simulations. Subsequent chapters cover: chemically reacting turbulent flows; radiation properties, Reynolds transport equation (RTE) solution methods, and TCRI; radiation effects in laminar flames; TCRI in turbulent flames; and high-pressure combustion systems. This Brief presents integrated approach that includes radiation at the outset, rather than as an afterthought. It stands as the most recent developments in physical modeling, numerical algorithms, and applications collected in one monograph.
Author : United States. Office of Space Science and Applications
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (31 download)
Download or read book Microgravity Science and Applications Bibliography written by United States. Office of Space Science and Applications and published by . This book was released on 1990 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microgravity Science and Applications Bibliography written by and published by . This book was released on 1990 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (317 download)
Download or read book Time-dependent Computational Studies of Premixed Flames in Microgravity written by and published by . This book was released on 1993 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
