The Effects of Fuel Structure on the Autoignition of Fuel-Air Mixtures

Format:

Conference/Event

Author/Creator:

Saidaminov, Saidakmal S., author.

Conference Name:

1980 Automotive Engineering Congress and Exposition (1980-02-25 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1980

Summary:

This paper contains the results of studies of self-ignition of differently-structured hydrocarbons, as well as of different gasolines, under varying rates of compression. Two oxygen-containing compounds, methanol and ether, were also examined. The air-fuel equivalence ratio was held at 1.2 for all tests. The experimental conditions simulate the end-gas state in an engine where compression takes place at different rates when engine speed is changed. Using the modern concept of the gas-phase oxidation of hydrocarbons, and drawing on the experimental data, a new scheme of hydrocarbon oxidation was developed. The activation energy for five individual hydrocarbons was calculated according to this scheme. The experiments with different gasolines have shown that the presence of more than 30% aromatic or olefinic hydrocarbons in gasoline leads to independence of fuel-knock resistance from engine speed. This last fact can promote high-speed knock

Notes:

Vendor supplied data

Publisher Number:

800046

Access Restriction:

Restricted for use by site license