Define ignition lag. State factors affecting ignition lag.

Define ignition lag. State factors affecting ignition lag.
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1 Answer

Answer :

Ignition lag: The time elapsed between the fuel injection into the combustion chamber and starting of combustion. It is a chemical process in which the growth and development of a self-propagating nucleus of flame is produced.

Factor affecting the ignition lag:

1) Self-Ignition Temperature of the fuel

2) Injection timing

3) Compression ratio

4) Engine speed

5) Air fuel ratio

6) Initial Temperature and pressure.

7) Presence of residual gases.

8) Engine size  
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