Study On Risk Assessment Of Cargo Leakage Of LPG Carrier

This thesis is a sub-system of the risk assessment of LPG carrier. It mainly assesses and predicts the potential risk degree if an accidental cargo spill occurs on LPG carrier. The investigation and analysis of LPG spill mechanism are made and cargo spill models, source strength released from LPG vapor in land and at sea are probed too. According to the facts of spill condition, systematic analysis is made on the suitable dispersion models which are applied to different spill and environment conditions, and source strength calculation models of multiple spilled resource and environment are analyzed as well, so as to put forward a comprehensive and systematic primary solution for vapor dispersion simulation of LPG.Based on explosion and fire character of LPG, using Dow Fire&Explosion index as a reference and taking TNT Weight Unit and Excessive Energy as indexes, models for destruction influenced area of fire and explosion have been made and the destroy and damage degree to people and property has been quantified.For the sake of convenient application, a computer software for risk assessment of LPG carrier is developed which can provide great assistance to the decision-making of emergency response and reach the target of reducing the damage of the life, property and environment to the smallest degree.