autoignition

Autoignition occurs when a fuel mixture heats up to its specific temperature, called the ignition point, without needing an external flame or spark. At this temperature, chemical reactions within the fuel automatically start, producing enough heat to sustain combustion. This process is influenced by factors like pressure, fuel type, and mixture composition. Autoignition is a key consideration in engines and fuel systems because it can lead to unexpected fires or knocking if not properly managed, especially in high-temperature environments like combustion chambers or engines.