Risk Assessment Operation of Auxiliary Steam Boiler on Pertamina Tanker Vessel

Abstract

Auxiliary steam boiler system is always included in hazard identification process and risk operation. Hazard is a source of the damage of the human, process, properties and environment. The risk is an explanation of advantage or disadvantage possibility such as financial, physical damage, or accident as activity consequence. In this case, risk is the appeared consequences and likelihood. HAZOP (Hazard and Operability Study) method was used to identify hazard potency at Auxiliary steam boiler. HAZOP identification was determined by 11 (eleven) study nodes on Auxiliary steam boiler system. HAZOP characteristic is systematic; it uses structured or higher arrangement based on the instructions and HAZOP team’s idea to continue and make sure whether the safeguard is suitable for the object being tested. Further, two-sided risk computation was done on Auxiliary steam boiler system until the risk frequency and risk consequence were found. Research results indicated 11 (eleven) types of consequences with the highest level, which further needs mitigation process to decrease the risk level from Auxiliary steam boiler system. This is to prevent the change of risk of each study node for minimized risk.