Download or read book Thermal Oxidation Stability of Aviation Turbine Fuels written by Robert N. Hazlett and published by ASTM International. This book was released on 1991 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survey of Research on Thermal Stability of Petroleum Jet Fuels written by Frank G. Schwartz and published by . This book was released on 1962 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aviation Fuel written by Perry W. Kirklin and published by ASTM International. This book was released on 1992 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: For technical readers in the aviation and fuel industries, and in testing laboratories, explores the history and philosophy of the thermal stability of aviation fuel, and considerations during the fuel's manufacture, storage and transport, use, and assessment. The 13 papers, representing a number of
Download or read book Thermal Stability of Jet Fuels written by Joseph B. Mettalia and published by . This book was released on 1957 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jet Fuel Thermal Stability written by and published by . This book was released on 1979 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various aspects of the thermal stability problem associated with the use of broadened-specification and nonpetroleum-derived turbine fuels are addressed. The state of the art is reviewed and the status of the research being conducted at various laboratories is presented. Discussions among representatives from universities, refineries, engine and airframe manufacturers, airlines, the Government, and others are presented along with conclusions and both broad and specific recommendations for future stability research and development. It is concluded that significant additional effort is required to cope with the fuel stability problems which will be associated with the potentially poorer quality fuels of the future such as broadened specification petroleum fuels or fuels produced from synthetic sources.
Download or read book Design and Current Status of Development of a Jet Fuel Thermal Stability Additive written by and published by . This book was released on 1999 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: An initiative led by the US Air Force concluded that advances in military fighter aircraft systems would require fuels with over 50% improvement in heat sink capability over conventional JP8 fuel, This led to the creation of the "JP8 + 100" program during which hundreds of commercial additives were tested for thermal stability enhancing characteristics. The program demonstrated that the thermal stability of jet fuels (particularly JPS) could be enhanced through the use of particular additives and additive blends used at relatively low concentrations. Additionally, flight testing highlighted a significant reduction in fuel- and related maintenance costs, arising from cleaner combustion. One aspect of the incorporation of the most beneficial additives from a thermal stability viewpoint that has given some cause for concern, however, is the consequent effect on the water and solids separation from "JP8+100" fuel, a feature minimized by introduction of the "+100" additive as close to the skin of the aircraft as possible. Inspired by the USAF success, and anticipated consequential environmental benefits, we have conducted an experimental program for the design and development of a conceptually new multifunctional molecular species to enhance the thermal stability of jet fuels, without compromising other required essentials of jet a fuel product quality.
Download or read book Thermal Stability of Jet Fuels Kinetics of Forming Deposit Precursors written by and published by . This book was released on 1997 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factors Affecting the Thermal Stability of Jet Fuels written by I. N. DANILOV and published by . This book was released on 1963 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jet Fuel Thermal Stability Improvements Through Fuel Processing written by Herbert R Lander (Jr) and published by . This book was released on 1974 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effectiveness of various refining processes in upgrading the thermal stability of aircraft turbine engine fuels has been examined. A Jet A-1 fuel was subjected to clay-treatment, desulfurization, and hydrogenation. The thermal stability of the treated and untreated fuels was determined using the Jet Fuel Thermal Oxydation Tester (JFTOT) thermal stability method. Desulfurization increased the JFTOT breakpoint by 120 to 140F, and desulfurization followed by hydrogenation increased the JFTOT breakpoint of the fuel by more than 150F. A low-aromatic JP-4 type of fuel, blended from a hydrogenated stock and a solvent-treated stock to remove aromatics, was also tested and compared to a conventional JP-4 fuel. Desulfurization, hydrogenation, clay treatment, and aromatic solvent extraction have been shown to be effective methods for upgrading the thermal stability of jet fuels.
Download or read book THERMAL STABILITY OF T TYPE JET FUELS written by LIBRARY OF CONGRESS WASHINGTON DC AEROSPACE TECHNOLOGY DIV. and published by . This book was released on 1960 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jet Fuel Thermal Stability written by C. T. Stone and published by . This book was released on 1962 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Midyear Economic Report from the USSR written by and published by . This book was released on 1956 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Thermally Stable Jet Fuel Development Program Annual Report Volume 2 Compositional Factors Affecting Thermal Degradation of Jet Fuels written by and published by . This book was released on 1992 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project focuses on the compositional factors affecting jet fuel thermal stability at high temperatures. The chemical composition of the four jet fuel samples (JP-8C, JP-8P, JP-7P, Jet A-1) and Wilsonville middle distillates was characterized by using selective ion monitoring technique in GC-MS analysis. The thermal treatment tests have been performed on jet fuels and a series of model compounds including tetralin, decalin, ethylcyclohexane, butylcyclohexane, n-butylbenzene, t-butylbenzene, n-octane, n-decane, and n-tetradecane. Deposit samples from an actual aircraft fuel system as well as those produced from jet fuels and model compounds in microautoclaves were characterized by FTIR and polarized-light microscopy. Experiments were conducted to find the optimum amount of antioxidant 2,6-di-tert-butyl-4-methylphenol necessary to minimize the solid formation upon thermal stressing of JP8 neat and Jet A-1 fuel samples. The chemistry of thermal degradation of the fuel and antioxidant mixtures was studied by using FTIR to characterize the liquid products from thermal stressing.
Download or read book THERMAL STABILITY OF JET FUELS written by and published by . This book was released on 1961 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the effect of mercaptans on the formation of insoluble sediment in jet fuels at elevated temperatures is reported. The study was conducted in three experimental series. Series 1 involved the testing of TC-1 fuels to determine the temperature of maximum sediment formation. Series 2 dealt with the effects of mercaptans and catalytic metals on sediment formation at 150 deg C. Series 3 extended the experiments of series 2 to the 100-300 deg C ring . Sediment formation increased with increasing mercaptan content, and the temperature of maximum sediment formation was 150 deg C.
Download or read book AMRL Evaluation of the JP 8 100 Jet Fuel Thermal Stability Additive written by Paul Rawson and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Stability of Jet Fuels written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-13 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this study was on the autoxidation kinetics of deposit precursor formation in jet fuels. The objectives were: (1) to demonstrate that laser-induced fluorescence is a viable kinetic tool for measuring rates of deposit precursor formation in jet fuels; (2) to determine global rate expressions for the formation of thermal deposit precursors in jet fuels; and (3) to better understand the chemical mechanism of thermal stability. The fuels were isothermally stressed in small glass ampules in the 120 to 180 C range. Concentrations of deposit precursor, hydroperoxide and oxygen consumption were measured over time in the thermally stressed fuels. Deposit precursors were measured using laser-induced fluorescence (LIF), hydroperoxides using a spectrophotometric technique, and oxygen consumption by the pressure loss in the ampule. The expressions, I.P. = 1.278 x 10(exp -11)exp(28,517.9/RT) and R(sub dp) = 2.382 x 10(exp 17)exp(-34,369.2/RT) for the induction period, I.P. and rate of deposit precursor formation R(sub dp), were determined for Jet A fuel. The results of the study support a new theory of deposit formation in jet fuels, which suggest that acid catalyzed ionic reactions compete with free radical reactions to form deposit precursors. The results indicate that deposit precursors form only when aromatics are present in the fuel. Traces of sulfur reduce the rate of autoxidation but increase the yield of deposit precursor. Free radical chemistry is responsible for hydroperoxide formation and the oxidation of sulfur compounds to sulfonic acids. Phenols are then formed by the acid catalyzed decomposition of benzylic hydroperoxides, and deposit precursors are produced by the reaction of phenols with aldehydes, which forms a polymer similar to Bakelite. Deposit precursors appear to have a phenolic resin-like structure because the LIF spectra of the deposit precursors were similar to that of phenolic resin dissolved in TAM. Naegeli, David W. Glenn Research Center ...
Download or read book Jp 8 100 written by Shawn P. Heneghan and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
