Risk-Based Analysis of LNG Carriers Loading and Unloading Operations

摘要

This paper presents a risk-based method to analyze the failure scenarios and associated consequences that may happen during the cargo handling operation of a LNG carrier. The paper determines the possible leakage causes and classifies their consequences. Those causes are related to failures of the components involved in these operations such as valves, piping system and control system. The risk involved in loading and unloading operations is described considering the probability of occurrence of each failure mode and the consequences of the leakage based on a risk matrix method. Recommendations to avoid the occurrence of LNG leakage are discussed.