رضا بهراد - Faculty of Mechanical Engineering‎, ‎University of Mohaghegh ‎Ardabili‎‎, Ardabil, ‎Iran
ابراهیم عبدی اقدم - Faculty of Mechanical Engineering‎, ‎University of Mohaghegh ‎Ardabili‎‎, Ardabil, ‎Iran.
هادی غائبی - Faculty of Mechanical Engineering‎, ‎University of Mohaghegh ‎Ardabili‎‎, Ardabil, ‎Iran.

Gasoline causes engine knock in higher compression ratios due to having lower spontaneous ignition temperature. Natural Gas (NG) has a higher octane number and is a proper fuel in terms of anti-knock properties; however, using it as the engine fuel results in a decline in the power of the engine and increases the emission of some exhaust gases due to lower burning velocity and gaseous nature.

dual fuel, Gasoline, Natural gas, knock, spark ignition engine