Abstract
Exhaust particulate from diesel engines is affected by fuel properties, but the reasons for this are not fully understood. As a result there is a need to obtain a better understanding of particulate formation mechanisms and factors to be able to decrease particulate formation. This report investigates the amounts of particulate formation and analyzes thermal cracking and condensation polymerized components with a fluid reaction tube, thermal cracking apparatus and nitrogen atmosphere. The investigation shows that the temperature at which particulate formation starts depends on the properties of the fuel.