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Author : Patricia Lynn Meyer
Publisher :
ISBN 13 :
Total Pages : 219 pages
Book Rating : 4.:/5 (163 download)
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:
Author :
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (893 download)
Download or read book A Novel Method of Atomizing Coal-water Slurry Fuels written by and published by . This book was released on 1990 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the body of work describing the performance of effervescent atomizers, its potential for use with coal water slurries (CWS) had not been evaluated prior to this study. This program was therefore undertaken: to demonstrate that effervescent atomization can produce CWS sprays with mean drop sizes below 50[mu]m; to determine a lower size limit for effervescent atomizer produced CWS sprays; to determine the mechanism(s) responsible for the formation of effervescent atomizer produced sprays. An analysis of the effects of slurry rheological properties (as indicated by the consistency index and the flow behavior index) and formulation (in terms of loading and coal particle top size) on the spray formation process was performed. The experimental data reported were then analyzed to explain the physical processes responsible for spray formation. The analysis began by considering an energy balance across a control volume that extended from the nozzle exit plant to the line of spray measurement. The inlet conditions were calculated using two-phase flow techniques and the outlet conditions were calculated by using conservation of momentum and assuming that the final velocities of the air and liquid were equal. Entrainment was considered negligible and losses were accounted for by realizing that only a small fraction of the atomizing air participated in the spray formation process with the remainder passing through the control volume unperturbed. Results are discussed. 41 figs., 4 tabs.
Author :
Publisher :
ISBN 13 :
Total Pages : 83 pages
Book Rating : 4.:/5 (685 download)
Download or read book Characterization of Coal-water Slurry Fuel Sprays from Diesel Engine Injectors written by and published by . This book was released on 1993 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were conducted to characterize coal-water slurry fuel sprays from diesel engine injectors. Since the combustion event is a strong function of the fuel spray, full characterization of the spray is a necessity for successful engine design and for modeling of the combustion process. Two experimental facilities were used at TAMU to study the injection of coal slurry fuels. The first experimental facility incorporates General Electric locomotive engine components (injection pump, fuel line, and nozzle) and a specially designed diaphragm to separate the abrasive coal slurry fuel from the moving parts of the pump. The second experimental facility is based on an accumulator injector from General Electric. Instrumentation includes instantaneous needle lift and fuel line pressure. A pressurized visualization chamber was used to provide a spray environment which simulated the engine gas density and permitted the use of spray diagnostic techniques. The study was divided into two phases: (1) overall characterization of the spray, and (2) detailed droplet size and size distribution characterization. In addition to this overall characterization of the spray, the second phase of this study characterized the details of the atomization quality.
Author :
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (685 download)
Download or read book Coal-water Slurry Atomization Characteristics written by and published by . This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this work was to fully characterize the CWS fuel sprays of a medium-speed diesel engine injection system. Specifically, the spray plume penetration as a function of time was determined for a positive-displacement fuel injection system. The penetration was determined as a function of orifice diameter, coal loading, gas density in the engine, and fuel line pressure. Preliminary droplet information also was obtained. The results of this study will assist CWS engine development by providing much needed insight about the fuel spray. In addition, the results will aid the development and use of CWS engine cycle simulations which require information on the fuel spray characteristics.
Author : Ajoy Kumar Seshadri
Publisher :
ISBN 13 :
Total Pages : 632 pages
Book Rating : 4.:/5 (284 download)
Download or read book Characterization of Coal Water Slurry Sprays from a Positive Displacement Fuel Injection System written by Ajoy Kumar Seshadri and published by . This book was released on 1991 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L.P. Bayvel
Publisher : Routledge
ISBN 13 : 1351434950
Total Pages : 488 pages
Book Rating : 4.3/5 (514 download)
Download or read book Liquid Atomization written by L.P. Bayvel and published by Routledge. This book was released on 2019-01-22 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the basics of liquid atomization, this book familiarizes readers with the physical processes of liquid atomization, the main types of atomizers and their design, measurements of spray characteristics, experimental investigations of atomizers, and application of atomizers. It demonstrates how to calculate and design atomizers and how to mea
Author :
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (893 download)
Download or read book Aerated Atomization of Coal-water Slurry Fuels written by and published by . This book was released on 1989 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the body of work describing the performance of effervescent atomizers, its potential for use with coal water slurries (CWS) had not been evaluated prior to this study. This programs was therefore undertaken: to demonstrate that effervescent atomization can produce CWS sprays with mean drop sizes below 50 [mu]m; to determine a lower size limit for effervescent atomizer produced CWS sprays; to determine the mechanism(s) responsible for the formation of effervescent atomizer produced sprays. This report describes results of a mathematical analysis in order to better understand physical phenomena involved. 12 figs.
Author :
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ISBN 13 :
Total Pages : 526 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-04 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 1000 pages
Book Rating : 4.0/5 ( download)
Download or read book Eighth International Symposium on Coal Slurry Fuels Preparation and Utilization written by and published by . This book was released on 1986 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (685 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (727 download)
Download or read book Aerated Atomization of Coal Water Slurry written by and published by . This book was released on 1989 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to better understand the process of slurry atomization, it is important to observe the influence of fluid non-Newtonian rheological behavior on the spray formation process. As a first step, glycerin-water solutions have been atomized. This report describes findings of photographs taken during atomization. 19 figs.
Author :
Publisher :
ISBN 13 :
Total Pages : 826 pages
Book Rating : 4.:/5 (31 download)
Download or read book Fossil Energy Update written by and published by . This book was released on 1981 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arthur Henry Lefebvre
Publisher :
ISBN 13 :
Total Pages : 153 pages
Book Rating : 4.:/5 (22 download)
Download or read book The Atomization Characteristics of Coal-water Slurry written by Arthur Henry Lefebvre and published by . This book was released on 1986 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. J. Plumpton
Publisher : Elsevier
ISBN 13 : 1483286908
Total Pages : 929 pages
Book Rating : 4.4/5 (832 download)
Download or read book Production and Processing of Fine Particles written by A. J. Plumpton and published by Elsevier. This book was released on 2017-05-04 with total page 929 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of an international symposium organised by the Metallurgical Society of the Canadian Institute of Mining and Metallurgy. The aims of the symposium were to discuss fundamental and practical aspects of the technology for the production of fine inorganic particles for the metals, industrial minerals and advanced ceramics sectors, to highlight particle characterization methods and developments, and to review major advances in the processing and extractive metallurgy of finely-sized minerals. 96 conference papers by authors from 19 countries addressed such topics as particle morphology and size analysis, physical and chemical methods for producing fine particles, processing of minerals using gravity, magnetic and electrostatic separation, flotation and flocculation, phase separation involving fine particles, and the hydrometallurgy and pyroprocessing of fine particles. This book will be of interest to mineral processing scientists and engineers, ceramicists, extractive metallurgists and chemical engineers, who are faced with the increasing significance of inorganic fine particles either as valuable products or as materials to be treated in mineral processing systems.
Author :
Publisher :
ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.3/5 (91 download)
Download or read book Proceedings of the 3rd International Conference on Liquid Atomisation and Spray Systems at Imperial College, London, 8-9-10 July 1985 written by and published by . This book was released on 1985 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (727 download)
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 written by and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Texas A M University (TAMU) has been awarded a DOE contract to study dynamic properties and atomization characteristics of coal-water slurry (CWS) fuels. Additives are essential for better mixing and stable suspension of coal powders and these additives change CWS properties. Dynamic properties will have major effects on CWS fuel atomization, which constitutes highly dynamic processes, and will determine the combustion as well as the pollutant formation behaviors. The dynamic surface tension of CWS fuels can be much higher than the corresponding static surface tension. Experimental study of correlating the atomization characteristics and dynamic properties of CWS fuels will be performed during the contract period. The research projects consists of five tasks. Task 1 selects appropriate additives and surfactants for CWS fuels by measuring the stabilizing characteristics and critical micelle concentrations (CMC). Task 2 implements the dynamic surface tensiometer operating based on the formation of maximum bubble pressure. Task 3 measures dynamic properties of CWS fuels as functions of bubble frequency while the fuel parameters are varied. The fuel parameters include coal loading, type of stabilizer and type of surfactant. Task 4 will devise a CWS fuel spray system and Task 5 will measure the spray droplet sizes using a laser diffraction technique.
Author : Yi Cheng
Publisher : John Wiley & Sons
ISBN 13 : 1119251060
Total Pages : 434 pages
Book Rating : 4.1/5 (192 download)
Download or read book Multiphase Reactor Engineering for Clean and Low-Carbon Energy Applications written by Yi Cheng and published by John Wiley & Sons. This book was released on 2017-02-21 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive review on the brand-new development of several multiphase reactor techniques applied in energy-related processes Explains the fundamentals of multiphase reactors as well as the sophisticated applications Helps the reader to understand the key problems and solutions of clean coal conversion techniques Details the emerging processes for novel refining technology, clean coal conversion techniques, low-cost hydrogen productions and CO2 capture and storage Introduces current energy-related processes and links the basic principles of emerging processes to the features of multiphase reactors providing an overview of energy conversion in combination with multiphase reactor engineering Includes case studies of novel reactors to illustrate the special features of these reactors
