Cetane number or CN is an indicator of the combustion speed and combustion quality of diesel fuel.
The higher the cetane number the more easily the fuel will combust in a compression setting ( such as a diesel engine ).
The characteristic diesel " knock " occurs when fuel that has been injected into the cylinder ignites after a delay causing a late shock wave.
Minimizing this delay results in less unburned fuel in the cylinder and less intense knock.
Therefore higher - cetane fuel usually causes an engine to run smoothly and quietly.
This does not necessarily translate into greater efficiency , although it may in certain engines.
;)
No comments:
Post a Comment