A correlation of the effects of compression ratio and inlet-air temperature on the knock limits of aviation fuels in a CFR engine - 2 /
Henry E. Alquist, Leon O'Dell, and John C. Evvard.

Description

Main Author

Alquist, Henry E.

Related Names

Evvard, John C.
O'Dell, Leon.
Aircraft Engine Research Laboratory.
United States. National Advisory Committee for Aeronautics.

Language(s)

English

Published

Washington, D.C. : National Advisory Committee for Aeronautics, [1946]

Subjects

Charts, diagrams, etc.
Temperature.
Pressure.
Fuel > Fuel / Air > Fuel / Air / Mixtures.
Motor fuels > Motor fuels / Anti-knock and anti-knock mixtures.
Airplanes > Airplanes / Fuel.

Summary

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.

Note

Prepared at the Aircraft Engine Research Laboratory, Cleveland, Ohio.
Originally issued as NACA as Advance Restricted Report E6E13 (June 1946).
NACA Wartime Report E-240.

Physical Description

9, [31] p. : ill. ; 27 cm.

Locate a Print Version

Find in a library

Viewability