Download or read book The Effect of Compression Ratio on Knock Limits of High performance Fuels in a CFR Engine written by Henry E. Alquist and published by . This book was released on 1944 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The knock-limited performance of blends of 0, 50, and 100 percent by volume of triptane (2,2,3-trimethylbutane) in 28-R fuel was determined with a modified F-4 engine at three sets of conditions varying from severe to mild at each of three compression ratios (6.0, 8.0, and 10.0). It was found that the knock limits of the triptane blend were more sensitive to compression ratio than that of 28-R fuel, and the sensitivities of the triptane blends to compression ratio, as measured by knock-limited indicated mean effective pressure, increased as the severity of other engine conditions increased.

Download or read book The Effect of Compression Ratio on Knock Limits of High performance Fuels in a CFR Engine written by Henry E. Alquist and published by . This book was released on 1945 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The knock-limited performance of blends of 0, 50, and 100 percent by volume of 2,3-dimethylpentane in 28-R fuel was determined with a modified F-4 engine at three sets of conditions varying from severe to mild at each of three compression ratios (6.0, 8.0, and 10.0). The knock-limited performance of 2,3-dimethylpentane is shown to have about the same sensitivity to compression ration and inlet-air temperature as 28-R fuel. For all the conditions tested the knock-limited performance of 2,3-dimethylpentane ranges from 12 to 47 percent (average of 23 percent) higher than that of 28-R fuel.

Download or read book The Effect of Compression Ratio on Knock Limits of High performance Fuels in a CFR Engine written by Henry E. Alquist and published by . This book was released on 1945 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The knock-limited performance of blends of 0, 50, and 100 percent by volumne of 2,2,3-trimethylpentane in 28-R fuel was determined with a modified F-4 engine at three sets of conditions varying from severe to mild at each of three compression ratios (6.0, 8.0, and 10.0). A comparison of the knock-limited performance of 2,2,3-trimethylpentane with that of triptane (2,2,3-trimethylbutane) is included.

Download or read book A Correlation of the Effects of Compression Ratio and Inlet air Temperature on the Knock Limits of Aviation Fuels in a CFR Engine 2 written by Henry E. Alquist and published by . This book was released on 1946 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The knock-limited performance of nine fuels, comprising isolated members of four classes of hydrocarbons, paraffins, cycloparaffins, and olefins), is presented in the form of three-dimensional plots of fuel-air ratio, compression temperature, and compression-air density. The plots are based on a correlation that is shown to apply for these fuels over a wide range of compression that is shown to apply for these fuels over a wide range of compression ratios and inlet-air temperatures. The significance of the term "temperature sensitivity" is sketched, and it is emphasized that no generalized number such as octane number can be applied even to members of a given class of hydrocarbons when broad ranges of engine severity are encountered.

Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1949 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Correlation of the Effects of Compression Ratio and Inlet air Temperature on the Knock Limits of Aviation Fuels in a CFR Engine 1 written by John C. Evvard and published by . This book was released on 1945 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method of correlating the effects of compression ratio and inlet-air temperature on the knock limits of aviation fuels is presented. The knock-limited compression-air density when the piston is at top center is plotted against the compression temperature. Knock-limited performance tests of S-2 reference fuel, 28-R fuel, and a blend containing 50 percent triptane plus 4.53 mil TEL per gallon and 50 percent 28-R fuel in CFR engines were run to check the method; a description of these tests and the data obtained are included.

Download or read book Wartime Report E written by United States. National Advisory Committee for Aeronautics and published by . This book was released on with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wartime Report written by and published by . This book was released on 1944 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by and published by . This book was released on 1949 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fuel Economy written by John C. Hilliard and published by Springer Science & Business Media. This book was released on 1984-05 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concern about the reduced availability and the increased cost of petroleum fuels prompted great efforts in recent years to reduce the fuel consumption of auto mobiles. The ongoing efforts to reduce fuel consumption have addressed many relevant factors, including increased engine performance, reduced friction, use of lightweight materials, and reduced aerodynamic drag. The results of the investigations assessing the various factors affecting fuel economy have been published in journals, conference proceedings, and in company and government reports. This proliferation of technical information makes it difficult for workers to keep abreast of aU developments. The material presented in this book brings together in a single volume much of the relevant materials, summarizes many of the state-of-the-art theories and data, and provides extensive lists of references. Thus, it is hoped that this book will be a useful reference for specialists and practicing engineers interested in the fuel economy of automobiles. J. C. HILLIARD o. S. SPRINGER vii CONTENTS 1. AUTOMOTIVE FUEL ECONOMY David Cole I. Introduction and Background. . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . n. Fuel Economy Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 A. Engine................................................... 11 B. Drive Train. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 . . . . . . . . . . . . . . C. Vehicle Factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 . . . . . . . . . . . . . D. Operating Factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 . . . . . . . . . . . . E. Test Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 . . . . . . . . . . . . . . . . . 2. FUEL ECONOMY AND EMISSIONS J. T. Kummer I. Introduction .................................................. . 35 n. Emission Regulations .......................................... .

Download or read book Fuel Abstracts written by and published by . This book was released on 1948-10 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1951 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1937 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the Committee's Reports no. 1-1058, reprinted in v. 1-37.

Download or read book Report National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1938 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Information Pilot written by and published by . This book was released on 1948 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wartime Report Release List written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1947 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Relative Sensitivities of the Knock Limits of Two Fuels to Six Engine Variables written by Harvey A. Cook and published by . This book was released on 1946 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sensitive fuel and a relatively insensitive fuel were knock-tested in a full-scale air-cooled cylinder. Sensitivity was indicated by a different degrees of knock-limited response to changes in engine conditions. Six engine variables were investigated: (1) fuel-air ratio, (2) compression ratio, (3) inlet-air temperature, (4) spark advance, (5) exhaust pressure, and (6) cylinder temperature.