Download or read book A Study on the Effect of Temperature on Soot Formation in a Jet Stirred Combustor written by Hiroki Satō and published by . This book was released on 1989 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soot Formation in a Jet Stirred Combustor written by Joseph Terence Hodges and published by . This book was released on 1989 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fuel Molecular Structure and Flame Temperature Effects on Soot Formation in Gas Turbine Combustors written by and published by . This book was released on 1989 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soot Formation in Combustion written by Henning Bockhorn and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soot Formation in Combustion represents an up-to-date overview. The contributions trace back to the 1991 Heidelberg symposium entitled "Mechanism and Models of Soot Formation" and have all been reedited by Prof. Bockhorn in close contact with the original authors. The book gives an easy introduction to the field for newcomers, and provides detailed treatments for the specialists. The following list of contents illustrates the topics under review:

Download or read book A Preliminary Analysis of the Effects of Mixing on Soot Formation written by Kevin L. Hoag and published by . This book was released on 1982 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamental characterization of alternate fuel effects in continuous combustion systems written by Exxon Research and Engineering Company. Government Research Laboratories and published by . This book was released on 1978 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Combustion Characteristics of Turbo Charged DISI engines written by Henrik Hoffmeyer and published by Logos Verlag Berlin GmbH. This book was released on 2012 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Fundamental Characterization of Alternative Fuel Effects in Continuous Combustion Systems Summary Technical Progress Report 1 February 1980 31 March 1981 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent efforts under this contract have involved (1) investigations of soot production phenomena in gas phase jet-stirred combustors, (2) preliminary experiments concerning the effects of liquid spray fuel injection on soot production in jet-stirred combustors, (3) development and shakedown of ER and E's new Variable Pressure Jet-Stirred Combustor, and (4) continued development of SAI's quasi-global chemical kinetic model of hydrocarbon combustion/soot production processes. Progress in each of these subject areas, including experimental results from the first two areas, detailed descriptions of the Variable Pressure Jet-Stirred Combustor and the present quasi-global model, and brief outlooks on future experimental and modeling efforts are discussed. Results from the gas phase jet-stirred combustor studies provide information regarding a possible soot formation mechanism change at 1800°K, the appropriateness of a separate sooting category for 1-methylnaphthalene and other multiring aromatics, the identification of unburned hydrocarbons in the exhaust gases, and the dependencies of soot properties on combustor operating conditions. The liquid fuel spray experiments provide data which relate liquid spray soot yields to fuel type, overall equivalence ratio, atomizing air flow rate, and combustor temperature. Of particular significance is the temperature dependence of the soot yield, which was found to be exactly opposite previous trends obtained in gas phase jet-stirred combustors. The description of the Variable Pressure Jet-Stirred Combustor includes the actual combustor, its versatile air and fuel supply systems, and associated instrumentation and diagnostics. The quasi-global model description contains tentative reaction mechanisms and rate constants and comparisons of model calculations with experimental data.

Download or read book Correlation of Soot Formation in Turbojet Engines and in Laboratory Flames written by Robert K. Gould and published by . This book was released on 1981 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data obtained from aviation gas turbine combustor tests have been examined to determine the effects of fuel properties on soot-related measurements such as engine smoke number, combustor flame radiation, and/or combustor linear temperature. Some tests of smaller laboratory combustors used to simulate these large combustors were also examined. From the existing data it is clear that soot production is a strong function of the fuel chemical composition. Variations in the physical properties of the fuel do not correlate well with soot-related effects. In studies in which a broad range of fuel properties was examined, correlation of soot-related effects with basic fuel compositional parameters including (1) the hydrogen content of the fuel, (2) the aromatic content of the fuel, and (3) the amount of multiple-ring aromatics in the fuel show that typically only the first of these correlates well. However, it has also been shown that fuel compositions can be chosen for which this correlating parameter fails.

Download or read book A Fundamental Study of Soot Formation in Diffusion Flames written by Richard L. Axelbaum and published by . This book was released on 1988 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamental Characterization of Alternate Fuel Effects in Continuous Combustion Systems written by W. S. Blazowski and published by . This book was released on 1978 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soot Particle Inception and Growth Processes in Combustion written by and published by . This book was released on 1991 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present research program is intended to provide a fundamental understanding of the processes controlling soot particle formation under conditions applicable to future gas turbine engine operation. During the current year of the effort, work has emphasized the effects of concentration and temperature on the formation of soot particles. Through a carefully structured study, the effects of adding a diluent to the fuel stream of a diffusion flame have been studied. Measurements and modelling efforts have shown that differences in the initial concentration of fuel are rapidly mitigated by diffusional processes. Consequently, local concentration variations are reduced between the initial undiluted and diluted flow cases. Furthermore, local temperature measurements indicate that even under equal adiabatic flame conditions, the local temperature in the soot forming region can differ by 40K between flames involving nitrogen or argon as the diluent. These differences in temperature are argued, based on previous work by other researchers, to be a possible source for the observed effects on soot formation. Additionally, consideration has been given to residence time effects, largely a result of delays in the onset of soot formation which reduces the effective time for soot growth.

Download or read book Experimental and Computational Study of Soot Formation Under Diesel Engine Conditions written by Ioannis Kitsopanidis and published by . This book was released on 2004 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) Oxygenates totally suppress soot formation at or above 30% oxygen in fuel by mass. Since soot formation is kinetically limited at lower temperatures and soot precursors are not thermodynamically stable at higher temperatures, soot yield exhibits a bell-shape dependence on temperature with a maximum at approximately 1800-2000K. Thus different surface growth mechanisms prevail across the temperature range; the relative contribution of C2H2 over PAH to soot growth increases with temperature. Even though nucleation is mostly governed by PAH coalescence, it was found that the C2H2 route is not negligible under certain conditions. The kinetics of fuel-rich combustion was found to be sensitive to the fuel+HOO reaction. Suggestions are made for better correlation between model and experiments regarding ignition delay and rate of heat release. While performing this study, insight was gained into RCM operation. Assuming uniform and homogeneous environment at the end of compression, was sufficient to model ignition delays under most conditions (2-10 ms), but not rate of heat release and maximum pressure. CFD analysis predicted non-negligible temperature stratification at the end of compression ( -80% of mass within 50K). A multizone model, taking into account zones of constant mass and allowing heat transfer and flow into the crevice, was developed and improved the agreement significantly.

Download or read book Fossil Energy Update written by and published by . This book was released on 1977 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Incineration of Hazardous Waste written by W. R. Seeker and published by CRC Press. This book was released on 1992 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on papers delivered at the First International Congress on Toxic Combustion By-products: Formation and Control, held in Los Angeles, Calif., August 1989. An overview of emissions, health risks, and existing regulations is followed by coverage of such topics as continuous emissions monitoring and control, processing of solids and liquids, fundamental chemistry, metals emissions, gas transport, and advanced combustion and control systems. Despite the length of time between the conference and publication, no index was prepared. Annotation copyright by Book News, Inc., Portland, OR