Marine Fuels are a mixture of heavy residual oil and cracked distillates, which can lead to poor ignition quality when blended.
Ignition research conducted over the last 25 years included; test engines, gas chromatography and “constant volume combustion bomb” (bomb calorimeter). These methods are accurate, but not economical.
Shell Research and British Petroleum have developed a simple-to-use indicator of ignition quality, the Calculated Carbon Aromaticity Index (CCAI) for HFO and the Cetane Index Indicated (CII) for MDO/MGO.
On the basis that a fuel’s aromaticity and carbon content have a significant influence on the ignition quality, the Shell (CCAI) and BP (CII) use a simple viscosity-density relationship nomogram, which provides an estimate of the ignition quality.
Ignition Quality of Marine Fuel
![Ignition Quality of Marine Fuel]()
Reviewed by HODO
on
August 14, 2015
Rating:
