การวิเคราะห์ความเสี่ยงระดับปฏิบัติการ กรณีศึกษาสถานีบรรจุและขนส่งก๊าซหุงต้ม

Abstract

This research aims to assess risks at a liquefied petroleum gas (LPG) filling and transportation station in Rayong Province using Failure Mode and Effect Analysis (FMEA). A process flow chart was used to identify critical failure points across three main processes: LPG filling, transportation (including warehouse storage), and gas tank storage. Risks were evaluated using Severity, Occurrence, and Detection to calculate the Risk Priority Number (RPN). Results showed a significant risk reduction after implementing preventive and corrective measures. The risk of leakage during the gas filling process was reduced by 75% with strict valve seal inspection measures. The risk of gas filling valves not closing properly was reduced by 76% by replacing high-quality valves and inspecting equipment before each use. The risk of overfilling was reduced by 78% by checking and calibrating pressure sensors every 6 months. Cylinder drop risk during transportation was reduced by 67%, and valve leakage by 76%. Improper stacking risks decreased by 75% using standard racking. Gas leakage in storage was reduced by 76%, and fire hazard risk was lowered by 66.7% with automatic suppression systems and emergency training.