The effective and efficient running of internal combustion engines is dependent on the ignition quality of the fuel.
Incorrect or out of specification fuel can cause problems or severe damage to the engines and associated equipment.
[1] Both CII and CCAI are calculated from the density and kinematic viscosity of the fuel.
CII was developed by BP to calculate the autoignition capacity of heavy fuel oils (HFO).
It is calculated using the measured kinematic viscosity V (cSt or mm2/s) of a given fuel determined at temperature t (°C) and the density ρ15 at 15°C (kg/m3).