Download or read book An Evaluation of Corrosion Inhibitors for Use in Aircraft Fuels written by J. A. Krynitsky and published by . This book was released on 1955 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aviation Turbine Fuel Lubricity Evaluation of Corrosion Inhibitors written by and published by . This book was released on 1975 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the evaluation of the effectiveness of corrosion inhibitors as fuel lubricity agents. The study was conducted with the Furey Ball-on-Cylinder. In the study, the eleven corrosion inhibitors from QPL- 25017-9 were evaluated as lubricity agents in three base fluids, at various concentrations, and at the two base fluid temperatures of 75F and 150F. The rank effectiveness of the inhibitors correlated for the following two cases: (1) The inhibitors at their maximum allowable concentration in the three base fluids at 75F. (2) The inhibitors at three concentrations in the same base fluid at 75F. The rank effectiveness of the inhibitors did not correlate for the case where the corrosion inhibitors were at their maximum allowable concentrations in the same base fluid but at the two different temperatures of 75F and 150F.
Download or read book Evaluation of Corrosion Inhibitors as Lubricity Improvers written by T. B. Biddle and published by . This book was released on 1988 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical effort described herein was directed as evaluating the corrosion inhibitors (CI) currently approved under the MIL-I-25017D qualified products list (QPL). The thrust of the effort focused on the following: (1) establishment of relative effective concentrations for approved CI, (2) generation of working curves to profile CI performance in jet fuels, (3) development of an approach for incorporating a lubricity requirement into MIL I- 25017, (4) refinement of the reverse phase high performance liquid chromatography (RPHPLC) method for determining CI content in jet fuels, (5) determination of applicability of the RPHPLC to WPL CI, and (5) generation of an RPHPLC spectral library of WPL CI in JP-4. IPC-4410 was found to be among the most effective CI at improving the lubricity properties of jet fuels, while TOLAD 249 was shown to be the least effective. Pratt & Whitney found that a requirement for lubricity enhancement could easily be incorporated into MIL-I- 25017 with no significant effect on other criteria used in qualifying a candidate CI. The RPHPLC method for determining levels of CI in jet fuel was found to be applicable to all 15 QPL CI. Ball on cylinder lubricity, Corrosion inhibitor, Fuel lubricity, Reverse phase, High performance, Liquid chromatography.
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 NRL Report written by and published by . This book was released on with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Various Corrosion Inhibitors Lubricity CI LI on Fuel Filtration Performance written by and published by . This book was released on 2008 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research had been performed by an industry cooperative program determining the effects of various military aviation fuel additives on filtration performance. One of the conclusions of this research was DCI 4A corrosion inhibitor has detrimental effects on water separation performance of fuel-water separators. The objective of this project was to verify previous research's conclusions that DCI 4A corrosion inhibitor caused detrimental water removal effects. API/IP 1581 5th Edition C-model filter-water separators were evaluated using DCI 4A corrosion inhibitor at 15, 10, 5, and 0 mg/L with duplicates at 5 and 0 mg/L. All data supports the conclusion that the lower the DCI 4A corrosion inhibitor concentration, the less impact this additive has on water separation performance. Results with only static dissipater (Stadis 450) and fuel system icing inhibitor (Di-egme) generate on specification data similar to Jet A that contains no additives.
Download or read book Subject Index to Unclassified ASTIA Documents written by Defense Documentation Center (U.S.) and published by . This book was released on 1960 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrochemical Corrosion Effects of Ethanol Based Fuel on General Aviation Aircraft Fuel System Components written by Tieling Xie and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The replacement of lead additives in aviation fuels with non-leaded alternatives is of great interest to the aviation community. Ethanol, which may be derived from renewable resources, has been suggested as an octane-enhancing additive for general aviation fuel. Besides the consideration of the additive's performance in meeting the requirements of aircraft engine combustion characteristics, there is also a concern about the material compatibility of ethanol fuels with respect to fuel system components consisting of metallic and polymer materials. This research project focuses on the effects of ethanol based fuels on the corrosion of metal components in fuel systems of general aviation aircraft. The types of metals that are studied include aluminum, brass and steel. Blends of gasoline that were tested were mixed with 10% to 85% ethanol by volume. The potential for corrosion to occur was determined through conventional weight loss methods and electrochemical measurements. By applying the principles of kinetics to the electrochemical reaction, the rate of corrosion was determined. Potentiodynamic polarization electrochemical techniques were used to determine the corrosion rates of metals exposed to various ethanol based fuels. Tafel extrapolation and linear polarization were correlated to corrosion rates. Impurities of water, chloride ion, and hydrogen ion were studied for their effect on the corrosion rate. Planned-interval tests were performed to investigate the change of the corrosive characteristics of metal and the change of the corrosiveness of the ethanol based fuels. Finally, DCI-11 from Octel-Starreon, was chosen to study the mechanism of commercial corrosion inhibitors. An observation was made that ethanol based fuels can create corrosion problems to some metal aircraft components. The inhibitor tested was effective in protection for fuel containing high percentages of ethanol. A correlation has been developed between observed metallic corrosion and fuel conductivity. The use of a corrosion inhibitor, conductivity measurements, and non-destructive component inspections should be incorporated in any future regulations intended to approve the use of ethanol based fuels in the existing fleet of general aviation aircraft.
Download or read book Catalog of Technical Reports written by United States. Dept. of Commerce. Office of Technical Services and published by . This book was released on with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Determination of Corrosion Inhibitor Levels in Jet Fuels by HPLC written by Margaret A. Wechter and published by . This book was released on 1986 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion inhibitors are mandatory additives which are added to Navy Jet fuels to reduce corrosion of transfer lines and storage tanks. In addition, they are known to enhance lubricity properties of hydro-treated fuels. It is known that, as fuels pass through transfer lines or are stored, the level of corrosion inhibitor present decreases and with this decrease there is a corresponding decrease in both the corrosion protection and the lubricity characteristics of the fuel. Since there are potentially deleterious effects resulting from a decrease in corrosion inhibitor concentrations, a method of quantifying their concentrations was desired in order to be able to make appropriate after market adjustments to fuels. Thus, the ultimate goal of this project was to develop and analytical method to quantitaively determine the amount of corrosion inhibitor present in fuel samples. A secondary goal was to gain more specific experimental evidence regarding the fate of the inhibitors. A method which efficiently extracts nine of the military approved commercial corrosion inhibitors from aircraft turbine fuels and qualitatively and quantitatively determines them by gel permeation chromatography is described. Additive concentration for quantitation ranges between 1 and 35 ppm (V/V). In addition the fate of the corrosion inhibitors at these concentrations in fuel was examined in the presence of steel surfaces, fresh water and sea water.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Turbine Engine Fuel Corrosion Inhibitors and Their Effects on Fuel Properties written by and published by . This book was released on 1974 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the effects of corrosion inhibitors on the thermal stability, filterability, and lubricity of aircraft turbine engine fuels.
Download or read book Aerospace Accident and Maintenance Review written by and published by . This book was released on 1961 with total page 402 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 Effect of Corrosion Inhibitors on Lubricity as Measured by the Ball On Cylinder Instrument written by Lourdes Q. Maurice and published by . This book was released on 1987 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is an investigation to determine the effects of corrosion inhibitors on the lubricity of different types of fuels. The lubricity level of each fuel sample was measured using the Interav Ball-on-Cylinder Tester. The three most common inhibitors currently used by the Air Force (herein referred to as Corrosion Inhibitors C1, C2 and C3) were tested in petroleum and shale JP-4, JP-8 and isopar with and without other additives present. 'Normalization' procedures were used to evaluate inhibitor effectiveness relative to the wear scar of clay-treated fuels. Other additives were found to have effects on lubricity of fuel with corrosion inhibitor. Temperature variations of 13 degrees C had only a slight effect on fuel lubricity. Keywords: Jet fuel. (JG).
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
