Compare detonation and diesel knock on the basis of (i) Fuel Ignition Temperature (ii) Compression Ratio (iii) Speed (iv) inlet temperature (v) inlet pressure (vi) cylinder wall temperature (vii) cylinder size

Compare detonation and diesel knock on the basis of (i) Fuel Ignition Temperature (ii) Compression Ratio (iii) Speed (iv) inlet temperature (v) inlet pressure (vi) cylinder wall temperature (vii) cylinder size 
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1 Answer

Answer :

Comparison between detonation and diesel knock:

Parameter
To avoid Detonation in SI Engine 
To avoid Diesel knock
i) Fuel Ignition Temperature
High
Low
ii) Compression Ratio
Low
High
iii) Speed
High
Low
iv) Inlet temperature
Low
High
v) Inlet pressure
Low
High
vi) Ignition delay
Long
Short
vii)Cylinder wall temperature
Low
High
viii) Cylinder size Small
Large
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