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Aerated Atomization Of Coal Water Slurry Fuels
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Book Synopsis Aerated Atomization of Coal-water Slurry Fuels by :
Download or read book Aerated Atomization of Coal-water Slurry Fuels written by and published by . This book was released on 1988 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to observe the effects of rheology on the atomization of highly viscous non-Newtonian liquids, glycerin-water solutions and cellulose-glycerin-water solutions have been atomized. In this series of tests, nozzle pressure, air-liquid ratio and liquid viscosity were altered, and the effects were observed. 14 figs.
Book Synopsis Supersonic Coal Water Slurry Fuel Atomizer by :
Download or read book Supersonic Coal Water Slurry Fuel Atomizer written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A supersonic coal water slurry atomizer utilizing supersonic gas velocities to atomize coal water slurry is provided wherein atomization occurs externally of the atomizer. The atomizer has a central tube defining a coal water slurry passageway surrounded by an annular sleeve defining an annular passageway for gas. A converging/diverging section is provided for accelerating gas in the annular passageway to supersonic velocities.
Book Synopsis Development and Use of an Apparatus to Measure the Dynamic Surface Properties of Coal-water Slurry Fuels for Applications to Atomization Characteristics. Quarterly Report No. 5, August 1, 1993--October 31, 1993 by :
Download or read book Development and Use of an Apparatus to Measure the Dynamic Surface Properties of Coal-water Slurry Fuels for Applications to Atomization Characteristics. Quarterly Report No. 5, August 1, 1993--October 31, 1993 written by and published by . This book was released on 1993 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cross-injecting spray system was designed and constructed to investigate the spray development and atomization behaviors of CWS fuel samples containing different additives. Distilled water was used as an atomized fluid in this preliminary stage. A laser diffraction particle sizing technique (the Malvern 2600D system) was used to determine the spatial distributions of the spray droplet diameters versus other relevant injection parameters. The overall spray development was also visualized using a high-speed photographic recording technique. The cross-injecting atomization system is a very comprehensive means of inspecting sprays that depend to an uncertain degree on surface properties and rheology.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Analysis of the Atomization Process in Coal-water Slurry Sprays by : Patricia Lynn Meyer
Download or read book An Analysis of the Atomization Process in Coal-water Slurry Sprays written by Patricia Lynn Meyer and published by . This book was released on 1986 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Use of an Apparatus to Measure the Dynamic Surface Properties of Coal-water Slurry Fuels for Applications to Atomization Characteristics. Final Report, September 1, 1992--December 31, 1993 by :
Download or read book Development and Use of an Apparatus to Measure the Dynamic Surface Properties of Coal-water Slurry Fuels for Applications to Atomization Characteristics. Final Report, September 1, 1992--December 31, 1993 written by and published by . This book was released on 1994 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were conducted to measure the dynamic surface tension of coal-water slurry (CWS) mixtures containing various types of surfactants and with varied coal loadings. The dynamic properties will affect CWS fuel atomization, which constitutes highly dynamic processes. A maximum air bubble pressure technique measured the dynamic surface tension. The dynamic surface tension, which can be much higher than the corresponding static surface tension, was measured for the CWS made from the coal mined from the Upper Elkhorn seam in Virginia. The coal had 50 [mu]m volume mean diameter (VMD). Five surfactants were selected for the study: one nonionic Alkylphenol Ethoxylate (NP-100), and four anionic surfactants; Branched Dodecylbenzene Sulfonic Acid (DDBS-hard), Linear Dodecylbenzene Sulfonic Acid (DDBS-soft), a Sodium Salt of a Branched Alkylbenzene Sulfonic Acid (1223H), and a Sodium Salt of Sulfonated Fatty Acid (1840X). A du-Nouy ring tensiometer measured the static surface tension to determine the critical micelle concentration (CMC). Measured values of dynamic surface tension are presented for 40% and 50% CWS mixtures with surfactant concentrations ranging from 0.1% to 5.0% in weight. The experiment found that the critical micelle concentration (CMC) of CWS was considerably higher than an aqueous solution because of the absorption of surfactant by coal particles. In addition, the dynamic surface tension continuously decreased beyond the CMC because suspended coal particles retarded the surfactant migration. The CWS dynamic surface tension showed wide variations of up to a factor of two depending on the type of surfactant whilst all the selected surfactants exhibited a same range of static surface tension values. The dynamic surface tension increased with increasing coal loadings in CWS. The primary reason for this is believed to be because of the increased absorption and physical blockings of coal particles.
Book Synopsis Fortran-Compiler unter dem Betriebssystem SCPX 1526 by :
Download or read book Fortran-Compiler unter dem Betriebssystem SCPX 1526 written by and published by . This book was released on 1985 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Use of an Apparatus to Measure the Dynamic Surface Properties of Coal-water Slurry Fuels for Applications to Atomization Characteristics. Quarterly Report No. 3, February 1, 1993--April 30, 1993 by :
Download or read book Development and Use of an Apparatus to Measure the Dynamic Surface Properties of Coal-water Slurry Fuels for Applications to Atomization Characteristics. Quarterly Report No. 3, February 1, 1993--April 30, 1993 written by and published by . This book was released on 1993 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were conducted to measure dynamic surface tension of various coal-water slurry (CWS) fuel samples containing different surfactants and coal loadings. A maximum air bubble pressure technique was used to measure dynamic surface tension. The coal used for the CWS had 50?m volume mean diameter (VMD) mined from the Upper Elkhorn Seam in Virginia. Five surfactants were selected for the study: Witconol NP-100, Ammonium DDBS (hard), Ammonium (soft), Witconate 1223H and Witconate 1840X. To determine critical Micelle concentration (CMC), static surface tension was also measured using a Du-Nouy ring tensiometer. Detailed and comprehensive data for dynamic surface tension for a 50% CWS mixture has been documented and presented.
Book Synopsis Characterization of Coal-water Slurry Fuel Sprays Generated by an Electronically-controlled Accumulator Fuel Injector by : Stephen Ellis Payne
Download or read book Characterization of Coal-water Slurry Fuel Sprays Generated by an Electronically-controlled Accumulator Fuel Injector written by Stephen Ellis Payne and published by . This book was released on 1993 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal-water Slurry Sprays from an Electronically Controlled Accumulator Fuel Injection System by :
Download or read book Coal-water Slurry Sprays from an Electronically Controlled Accumulator Fuel Injection System written by and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments have been completed to characterize coal-water slurry sprays from an electronically-controlled accumulator fuel injection system of a diesel engine. The sprays were injected into a pressurized chamber equipped with windows. High speed movies, fuel pressures and needle lifts were obtained as a function of time, orifice diameter, coal loading, gas density in the chamber, and accumulator fuel pressure. For the base conditions (50% (by man) coal loading, 0.4 mm diameter nozzle hole, coal-water slurry pressure of 82 MPa (12,000 psi), and a chamber density of 25 kg/m3), the break-up time was 0.30 ms. An empirical correlation for spray tip penetration, break-up time and initial jet velocity was developed. For the conditions of this study, the spray tip penetration and initial jet velocity were 15% greater for coal-water slurry than for diesel fuel or water. Results of this study and the correlation are specific to the tested coal-water slurry and are not general for other coal-water slurry fuels.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.
Book Synopsis DEVELOPMENT OF A PHENOMENOLOGICAL MODEL FOR COAL SLURRY ATOMIZATION. by : John Dooher
Download or read book DEVELOPMENT OF A PHENOMENOLOGICAL MODEL FOR COAL SLURRY ATOMIZATION. written by John Dooher and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Air Blast Type Coal Slurry Fuel Injector by :
Download or read book Air Blast Type Coal Slurry Fuel Injector written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A device to atomize and inject a coal slurry in the combustion chamber of an internal combustion engine, and which eliminates the use of a conventional fuel injection pump/nozzle. The injector involves the use of compressed air to atomize and inject the coal slurry and like fuels. In one embodiment, the breaking and atomization of the fuel is achieved with the help of perforated discs and compressed air. In another embodiment, a cone shaped aspirator is used to achieve the breaking and atomization of the fuel. The compressed air protects critical bearing areas of the injector.
Book Synopsis Preliminary Reports by the Italian Organizations Involved in Coal Water Slurry Fuel by :
Download or read book Preliminary Reports by the Italian Organizations Involved in Coal Water Slurry Fuel written by and published by . This book was released on 1986 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Secondary Atomization of Coal-water Fuels for Gas Turbine Applications by :
Download or read book Secondary Atomization of Coal-water Fuels for Gas Turbine Applications written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The main research objective was to determine the effectiveness of the CWF treatments on atomization quality when applied to an ultrafine coal-water fuel (solids loading reduced to 50%) and to gas turbine operating conditions (atomization at elevated pressures). Three fuel treatment techniques were studied: (1) heating of CWF under pressure to produce steam as the pressure drops during passage of the CWF through the atomizer nozzle, (2) absorption of CO/sub 2/ gas in the CWF to produce a similar effect, and (3) a combination of the two treatments above. These techniques were expected to produce secondary atomization, that is, disruptive shattering of CWF droplets subsequent to their leaving the atomizing nozzle, and to lead to better burnout and finer fly ash size distribution. A parallel objective was to present quantitative information on the spray characteristics (mean droplet size, radial distribution of droplet size, and spray shape) of CWF with and without fuel treatment, applicable to the design of CWF-burning gas turbine combustors. The experiments included laser diffraction droplet size measurements and high-speed photographic studies in the MIT Spray Test Facility to determine mean droplet size (mass median diameter), droplet size distribution, and spray shape and angle. Three systems of atomized sprays were studied: (1) water sprays heated to a range of temperatures at atmospheric pressure; (2) CWF sprays heated at atmospheric pressure to different temperatures; and (3) sprays at elevated pressure. 31 refs., 47 figs., 1 tab.
Book Synopsis The Optimization of a Coal Water Slurry Atomizer by : T. C. Roesler
Download or read book The Optimization of a Coal Water Slurry Atomizer written by T. C. Roesler and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1982 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
