Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion
Discussion Forum : IC Engines and Nuclear Power Plants - Section 2 (Q.No. 4)
4.
The higher combustion chamber wall temperature in compression ignition engines will __________ knocking tendency.
Discussion:
13 comments Page 1 of 2.
Rajendra Lakkipogu said:
5 years ago
Knocking will increase when in case IC engines, where as in CI engines knocking will decreases.
Swarup said:
5 years ago
Then, What is for si engine?
Anandu said:
6 years ago
In CI engine knocking is caused by ignition delay, so an increase in wall temperature reduce knocking.
Dwaipayan said:
7 years ago
If the combustion chamber is already hot enough then it will supply the heat to the fuel and fuel will burn readily and that too before the spark and therefore a premature ingnition will take place. I think this is (premature ignition) what causes knocking in SI engines.
Akash said:
7 years ago
No, @Mck.
It is actually, increases in the temp of cooling water increases the knocking tendency.
It is actually, increases in the temp of cooling water increases the knocking tendency.
Harry said:
7 years ago
@Ujjwal.
Pre-ignition cannot occur because fuel will not be there inside the chamber.
Pre-ignition cannot occur because fuel will not be there inside the chamber.
Ujjawal aggarwal said:
7 years ago
I think the correct answer is A.
Because if the wall temperature is higher then there would be the chances of preignition which leads to knocking.
Because if the wall temperature is higher then there would be the chances of preignition which leads to knocking.
Pradeep gk said:
8 years ago
In petrol engine increase the knoking tendency.
Mck said:
8 years ago
Then why cooling water temp increases the knocking?
NR VERMA said:
8 years ago
Thank you both of you.
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