Analysis of fuel properties in the context of the causes of three marine auxiliary engines failure-A case study

This article presents the effects of a severe failure of three four-stroke auxiliary engines in a container ship's power plant. The failure included jammed cylinder valves, fuel equipment damage, a fire in one of the engines and an explosion of its turbocharger. An analysis of fuel as a factor that constitutes the source and common cause of failure of each engine is made. Laboratory analysis of the fuel is performed. Auxiliary indicators describing the fuel properties are determined, including the calculated carbon aromaticity index (CCAI) and the calculated ignition index (CII). Laboratory analysis of the fuel ignition properties, including the determination of the equivalent cetane number (FIA CN and ECN) and the delay of self-ignition in test conditions (ID). The possible causes of non-compliance with quality standards by the fuel used to power the damaged engines before and during the failure are consulted. Recommendations that may improve safety are presented.