3. Theory and hypotheses
Diesel is a liquid fuel used for compression ignition engines, diesel It is engines. complex mixture of thousand compounds that most of them are paraffinic, naphthenic, or aromatic hydrocarbons with carbon numbers between 10 and 22. For the most important properties of diesel, normal paraffins have poor cold flow property, excellent cetane number, and low volumetric heating value. Aromatics have good cold flow property, low cetane number, and good volumetric heating value. Isoparaffins and naphthenes are intermediate with the values between those of normal paraffins and aromatics (Chevron Corporation, 2007)