Do you know about Detonation | Effects of Detonation | Method of Preventing the Detonation| Knocking

This video is all about Detonation, Effects of Detonation, Method of Preventing the Detonation

The air-fuel mixture is compressed during the compression stroke, and at the end of the compression stroke, the spark developed by the spark plug, ignites the mixture. The mixture does not burn suddenly, but a wave front is formed at the spark plug. This wave front moves ahead with a certain velocity. compressing the unburnt charge. The unburnt charge burns suddenly with an explosion. Due to this explosion, a pressure wave is produced, which moves to and fro inside the combustion chamber. During the to and fro movement. the pressure wave strikes the walls and a ringing sound is then produced. This phenomenon is called detonation or knocking.

Effects of Detonation -
1. Loss of power from the engine takes place.
2. Combustion of the charge is not efficient.
3. The engine is overheated.
4. Parts of the engine may fail to function due to overheating & explosion.

Prevention -
1. Cooling the air - fuel mixture
2. Anti - knock agents
3. Reducing the time factor

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