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Author :
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ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (317 download)
Download or read book Deposit Formation in Hydrocarbon Rocket Fuels written by and published by . This book was released on 1981 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (317 download)
Download or read book Deposit Formation and Heat Transfer in Hydrocarbon Rocket Fuels written by and published by . This book was released on 1983 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anthony J. Giovanetti
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (14 download)
Download or read book Deposit Formation and Heat Transfer in Hydrocarbon Rocket Fuels written by Anthony J. Giovanetti and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (742 download)
Download or read book Heat Transfer and Deposition Behavior of Hydrocarbon Rocket Fuels written by and published by . This book was released on 2002 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the desire to increase the performance of hydrocarbon/liquid oxygen rocket engines naturally leads to increased combustion chamber pressures and higher energy hydrocarbon fuels, the combustion chamber and nozzle heat fluxes also increase. For engines regeneratively cooled with hydrocarbon fuel, this additional thermal stress must be effectively carried by the fuel without degradation of the cooling channel surfaces. A methodology for evaluation of the thermal performance (thermal stability and heat transfer characteristics) of hydrocarbon rocket fuels is suggested. As part of that methodology, an experimental research program to investigate the thermal performance of several new candidate hydrocarbon rocket fuels has been started. The experimental program uses a series of test rigs of increasing complexity and fidelity to successively screen identified fuels without the cost and complexity of a full engine system level test. Results of small-scale thermal decomposition experiments utilizing a System for Thermal Decomposition Studies (STDS) test rig provide an initial evaluation of the thermal stability performance of fuels from very small fuel samples. Measurements of heat transfer coefficient and the effect of wall temperature, flow velocity, and wetted-material on deposit formation in heated test channels are obtained from larger rigs, such as the NASA/GRC Heated Tube Facility and the AFRL/PRS High Heat Flux Facility. Representative results from early testing will be presented to illustrate the effectiveness of the overall approach.
Author : J. TeVelde
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (228 download)
Download or read book Alternative Fuel Deposit Formation written by J. TeVelde and published by . This book was released on 1984 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: A heated-tube apparatus was used to evaluate the deposit formation rates of four liquid hydrocarbon fuels and to determine the effect fuel deposits have on the heat transfer characteristics of aircraft gas turbine fuel systems. The fuels tested were: a low- aromatic JP-5, a blend of 80 percent JP-5 20 percent hydrocracked gas oil, a blend of 50 percent JP-5 and 50 percent No. 2 heating oil, and a shale derived JP-5. Deposit formation rates ranging from 10 microgram/sq cm hr to 3000 microgram/sq cm hr were obtained at tube wall temperatures ranging from 480 K to 800 K, with peak formation rates occurring at initial surface temperatures of 644 K to 672 K. Results indicate that deposit formation rate correlates very well with initial surface temperature and the thermal stability rankings derived from present experimental results agree very well with rankings based upon independent JFTOT analysis. The deposit thermal resistance, as calculated from heat transfer measurements, correlates well with measured deposit quantity and thickness. Heat transfer analyses indicate that the deposit thermal conductivity increases with increasing deposit thickness, and ranges from values approximating the thermal conductivity of the fuel to values approaching that of amorphous carbon. (Author).
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ISBN 13 :
Total Pages : 704 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 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. D. Bai
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (317 download)
Download or read book Development of Advanced Hydrocarbon Fuels at Marshall Space Flight Center written by S. D. Bai and published by . This book was released on 2002 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alessandro de Iaco Veris
Publisher : Springer Nature
ISBN 13 : 3030547043
Total Pages : 747 pages
Book Rating : 4.0/5 (35 download)
Download or read book Fundamental Concepts of Liquid-Propellant Rocket Engines written by Alessandro de Iaco Veris and published by Springer Nature. This book was released on 2020-09-26 with total page 747 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for students and engineers who design and develop liquid-propellant rocket engines, offering them a guide to the theory and practice alike. It first presents the fundamental concepts (the generation of thrust, the gas flow through the combustion chamber and the nozzle, the liquid propellants used, and the combustion process) and then qualitatively and quantitatively describes the principal components involved (the combustion chamber, nozzle, feed systems, control systems, valves, propellant tanks, and interconnecting elements). The book includes extensive data on existing engines, typical values for design parameters, and worked-out examples of how the concepts discussed can be applied, helping readers integrate them in their own work. Detailed bibliographical references (including books, articles, and items from the “gray literature”) are provided at the end of each chapter, together with information on valuable resources that can be found online. Given its scope, the book will be of particular interest to undergraduate and graduate students of aerospace engineering.
Author : George P. Sutton
Publisher : John Wiley & Sons
ISBN 13 : 9780471326427
Total Pages : 772 pages
Book Rating : 4.3/5 (264 download)
Download or read book Rocket Propulsion Elements written by George P. Sutton and published by John Wiley & Sons. This book was released on 2001 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerospace Engineering/Mechanical Engineering The definitive text on rocket propulsion-now completely revised to reflect rapid advancements in the field For more than fifty years, this seminal text has been regarded as the single most authoritative sourcebook on rocket propulsion technology. More comprehensive and coherently organized than any other book on the subject, Rocket Propulsion Elements guides readers evenhandedly through the complex factors that shape propulsion, with both theory and practical design considerations. With more than a third of the text and illustrations either completely new or extensively revised, this latest edition includes current information on engine structures, nozzle theory, gas properties, thrust chambers, launch vehicles, and more. With a detailed table of contents breaking down each chapter into subsections-as well as an expanded index of key words-the Seventh Edition efficiently steers readers quickly to the information they need. Other highlights include: * Separate chapters on liquid, solid, and hybrid propulsion systems and a new chapter on thrust chambers including the new aerospike nozzle * Comprehensive coverage of rocket propulsion technology, with applications to space flight, satellite flight, and guided and unguided missiles * Problem-solving examples and exercises relevant to actual design situations * More than 340 illustrations, including photographs, tables, and graphs * Coherent, up-to-date chapter on electrical propulsion balancing fundamentals with practical aspects and applications For professional engineers in the aerospace and defense industries as well as undergraduate and graduate students in mechanical and aerospace engineering, this time-honored resource is indispensable for its scope of coverage and utility.
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ISBN 13 :
Total Pages : 240 pages
Book Rating : 4.F/5 ( download)
Download or read book Energy written by and published by . This book was released on 1982 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. F. Taylor
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (227 download)
Download or read book The Study of Hydrocarbon Fuel Vapor Phase Deposits written by W. F. Taylor and published by . This book was released on 1968 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trace levels of nitrogen compounds have been found to increase the rate of deposit formation. Three pure nitrogen compounds, i.e., 2,5 dimethylpyrrole, indole and 2 ethylpyridine, increased the rate of deposit formation at 300F up to a factor of approximately 10 at the 1000 ppm N level. Tests at lower nitrogen levels indicate that the rate of deposit formation exhibits a square root dependence on nitrogen concentration. The effect of several commercially available antioxidants on the deposit formation tendency of jet fuels at 'empty' wing tank conditions has been evaluated. Pure compound studies were also continued. A highly branched C12 paraffin (i.e., 2,2,4,6,6 pentamethylheptane) was slightly more deletereous toward deposit formation than n-dodecane. The deposit formation tendency of n-decane was strongly inhibited by the addition of diphenylmethane.
Author : Bela M. Fabuss
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (456 download)
Download or read book Research on the Mechanism of Thermal Decomposition of Hydrocarbon Fuels written by Bela M. Fabuss and published by . This book was released on 1964 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The decomposition and particle formation of 28 naphthenic and 8 paraffinic hydrocarbons were studied. The decomposition was approximately a first-order kinetic process, although self-acceleration was observed with most monocyclic hydrocarbons and self-inhibition was observed for polycyclic hydrocarbons. Pressure increased the decomposition rate. A detailed study of the effects of organosulfur contaminants was made. These contaminants inhibited the cracking of naphthenes and straight-chain paraffins and accelerated the cracking of branched paraffins. An increase in contaminant concentration and an increase in the number of methyl substituent groups on a hydrocarbon increased this effect. Several binary hydrocarbon mixtures were cracked. The component hydrocarbons did not crack independently. Nevertheless, the decomposition rate of the mixture could be predicted assuming no mutual interference in decomposition. The micro-coker, a new small-scale device for studying decomposition and deposit formation in a flow system, was developed.
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ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (317 download)
Download or read book Liquid Phase Products and Solid Deposit Formation from Thermally Stressed Model Jet Fuels written by and published by . This book was released on 1984 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1004 pages
Book Rating : 4.:/5 (319 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2004 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 584 pages
Book Rating : 4.3/5 (91 download)
Download or read book Energy: a Continuing Bibliography with Indexes written by and published by . This book was released on 1982 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 728 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William F. Taylor
Publisher :
ISBN 13 :
Total Pages : 250 pages
Book Rating : 4.:/5 (227 download)
Download or read book The Study of Hydrocarbon Fuel Vapor Deposits written by William F. Taylor and published by . This book was released on 1969 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deposits form in the 'empty' wing tank of a supersonic aircraft as a result of a complex free radical autoxidation process. The complete exclusion of oxygen suppresses deposit formation. Deposits are formed much more rapidly when a condensed (liquid) phase is present than when no condensed phase is present. An apparatus was designed which quantitatively measures the rate of deposit formation. Higher total pressure and increasing oxygen pressure increases the level of deposit formation. Trace levels of sulfur and nitrogen compounds markedly increase deposit formation. The nature of metal surfaces to which the fuel is exposed was found to influence the rate of deposit formation. Vanadium containing titanium alloys and copper surfaces were found to be particularly deleterious. The presence of dissolved metals also markedly increased the level of deposit formation. Studies were made with pure compounds and simple binary blends of pure compounds. The broad objective of this work was to elucidate the effect of jet fuel hydrocarbon composition on deposit formation. Currently used antioxidant additives were found to be ineffective in reducing the rate of deposit formation. The use of rust preventive and metal deactivator additives increased the rate of deposit formation. Coating an active metal surface with a polymeric material increased the level of deposit formation.
