A Correlation of the Effects of Compression Ratio and Inlet-air Temperature on the Knock Limits of Aviation Fuels in a CFR Engine - 2 PDF Download
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Author: Henry E. Alquist
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 48
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Book Description
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.
Author: Henry E. Alquist
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 48
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Book Description
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.
Author: John C. Evvard
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 20
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Book Description
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.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 774
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Author: Lipman Bers
Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 700
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Book Description
The method of computing velocity and pressure distributions along wing profiles under the assumption of the simplified density-speed relation, outlined in NACA Technical Note 1006, is extended to the case of a nonsymmetrical profile and a flow with circulation. The shape of the profile, the speed of the undisturbed flow, and a parameter determing the angle of attack may be prescribed. The problem is reduced to a nonlinear integral equation which can be solved numerical by an iteration method. A numerical example is given.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 388
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Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 616
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 664
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 812
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Book Description
Reproductions of reports, some declassified, of research done at Aircraft Engine Research Laboratory during World War II. The order of reports does not represent when they were chronologically issued. Reference to the original version of each report is included.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 612
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1620
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