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The calculated ignition index (CII), together with the calculated carbon aromaticity index (CCAI), are empirical indicators which describe the characteristics or properties of a fuel. [1] Both CII and CCAI are calculated from the density and kinematic viscosity of the fuel.
As the name suggests, CCAI is a calculation based on the density and viscosity of a given fuel. The formula is rather complex but in general, the higher the CCAI, the poorer the ignition quality of the fuel is considered to be. Once the CCAI goes above 860, it is an indication that some combustion problems may occur.
CCAI is an acronym that can refer to: . Climate Change Artificial Intelligence, an initiative of data scientists to help resolve the ongoing issue of climate change; Calculated Carbon Aromaticity Index, an index to calculate the ignition quality of residual fuel oil
C. Calculated Carbon Aromaticity Index; Calculated Ignition Index; Cantera (software) Chapman–Jouguet condition; Chemical looping combustion; Chemical WorkBench
The cetane number of a fuel is defined by finding a blend of cetane and isocetane with the same ignition delay. Cetane has a cetane number defined to be 100, while isocetane's measured cetane number is 15, replacing the former reference fuel alpha-methylnaphthalene, which was assigned a cetane number of 0.
Calculated Ignition Index, an index of the ignition quality of fuel oil; Caldera International, Inc., a software company between 2001 and 2002; Centro Intelligence Interforze, an Italian intelligence agency; Chaîne d'Information Internationale, former name of TV station France 24; Chartered Insurance Institute
Because octane is a measured and/or calculated rating of the fuel's ability to resist autoignition, the higher the octane of the fuel, the harder that fuel is to ignite and the more heat is required to ignite it. The result is that a hotter ignition spark is required for ignition.
The heating value of a fuel can be calculated with the results of ultimate analysis of fuel. From analysis, percentages of the combustibles in the fuel (carbon, hydrogen, sulfur) are known. Since the heat of combustion of these elements is known, the heating value can be calculated using Dulong's Formula: