What precaution should be take to prevent in incomplete combustion of fuel?
Answers
Answer:
For a complete combustion, no residue of fuel should be left after the combustion process.
Precautions to be taken to prevent incomplete combustion are :-
Proper air to fuel ratio: For complete combustion of the fuel each droplet should be surrounded by air which is equal or greater to the air-fuel ratio.
Proper atomisation of fuel: Fuel should be sprayed in the form of mist so that it can mix with air for proper combustion.
Heat: Heat required for combustion of different fuels are also different. Petrol or Gasoline need very less heat to ignite as it vaporises but not the diesel fuel. It needs much higher heat than the gasoline counterparts. Proper heat should be provided for complete combustion.
Engine timing: Engine timing is very crucial for complete combustion as early spark can lead to a flame travelling into the intake valve and also it can lead to knocking.
After-burning: Prevent afterburning by introduction of multiple spark plugs so that the entire charge ignites simultaneously because there are chances that fuel exits the chamber unburnt. So make sure all the parts in the combustion chamber gets equal heat.
Hope I have covered everything.
Explanation:
The precautions to prevent incomplete combustion of fuel are:-
1. Leave proper gaps between logs of wood so that sufficient air reaches them for their complete combustion.
2. Use the grate for holding the burning solid fuels. Grate is a frame of parallel iron bars for holding the burning fuel. It allows the free movement of air and keeps the solid fuel away from ash.
3. Use wick stove for gaseous fuel combustion. Wick stove has a perforated sheet around the wick that supplies fresh air continuously for complete combustion.
4. In gaseous fuel like CNG and LPG, the stove has holes for constant supply of air. They should be cleaned properly and regularly.