SUB-SYNCHRONOUS TORSIONAL INTERACTION (SSTI) CASE STUDY: GENERAL APPROACH APPLIED TO A REAL LNG PLANT

Abstract

Scope of this Case Study is to apply a general approach used for Sub-Synchronous Torsional Interaction (SSTI) studies to a real Liquefied Natural Gas (LNG) plant, where severe SSTI events have been observed during commissioning and start-up activities. The results obtained by using a commercial simulation platform are compared to field data acquired during an SSTI event. The importance of this type of analysis during the plant design phase is emphasized, showing how it can help plant owners in addressing the implementation of proper monitoring and mitigation actions against unexpected SSTI events in the field.