FTA support for complex scenarios
MAR Consulting supported the Client in performing a fault tree analysis (FTA) for hazardous scenarios in an onshore chemical facility. The scenarios to be analysed were deemed too complex to be handled in a traditional layer of protection analysis (LOPA). LOPA cannot be used for scenarios with a multitude of initiating causes and different combinations of independent protection layers (IPL) for each cause. Fault trees are more flexible and can be used to model the probability of occurrence of such hazardous scenarios.