Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion
Discussion Forum : IC Engines and Nuclear Power Plants - Section 4 (Q.No. 9)
9.
The delay period in oil engines increases with increase in the speed of engine.
Discussion:
6 comments Page 1 of 1.
Ankit said:
3 years ago
If oil engines are considered as a petrol engine then it is write otherwise it will be wrong as delay period increases with increasing the speed in diesel engine.
Chopra said:
4 years ago
I believe we can guess through knocking tendency too.
An increase in engine speed increases the knocking tendency in a diesel engine. Hence it can't be the case that the delay period is reduced (since that would imply knocking is reduced).
An increase in engine speed increases the knocking tendency in a diesel engine. Hence it can't be the case that the delay period is reduced (since that would imply knocking is reduced).
(1)
Roshan said:
4 years ago
@Srinivasthsu.
If you are saying oil engines are diesel engines then the given answer is wrong.
Because in diesel engine as the speed of the engine increase then nozzle injects more fuel more time to atomize the fuel and increase the delay period. More fuel accumulated in the cylinder and knocking increase.
If you are saying oil engines are diesel engines then the given answer is wrong.
Because in diesel engine as the speed of the engine increase then nozzle injects more fuel more time to atomize the fuel and increase the delay period. More fuel accumulated in the cylinder and knocking increase.
Srinivasulu v said:
7 years ago
Oil engines means diesel engines.
In this engines as With the increase in compression ratio reduces ignition delay, a higher pressure increases density resulting in closer contact of the molecules which reduce the time of action when fuel is injected.
In this engines as With the increase in compression ratio reduces ignition delay, a higher pressure increases density resulting in closer contact of the molecules which reduce the time of action when fuel is injected.
Deepesh said:
8 years ago
No, detonation will be less if speed increases and delay period matters on detonation effect.
Keno said:
8 years ago
Anyone explain, please.
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