In order to eliminate knocking in compression ignition engines, there should be
A. Short delay period
B. Late auto-ignition
C. Low compression ratio
D. High self ignition temperature of fuel
Answer: Option A
Solution (By Examveda Team)
In order to eliminate knocking in compression ignition engines, there should be short delay period.- Add 1% of ethyl nitrate or any nitrate to accelerate the combustion of fuel. This process is known as “Doping” and reduce delay period considerably and hence prevent diesel knock.
- For spontaneous ignition of the fuel, we require much higher temperature this can be achieved by raising the compression ratio.
This Question Belongs to Mechanical Engineering >> Internal Combustion Engines (I.C. Engines)
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