Topological Network Inversion Method of Fire Source Location for Liquefied Natural Gas (LNG) Storage

Liquefied Natural Gas (LNG) tank fire and explosion accident consequences and losses are very serious. Accident inversion method can provide the basis for accident prevention, but there are still some problems on the LNG tank fire with inversion method. Therefore, the topological network model and inversion method of LNG tank fire accident are proposed in this thesis. Firstly, the topology model of LNG tank fire inversion is established, and the optimal estimator of the shortest path is proposed according to the weighted edge topological network structure, so as to determine the fire location. Case study is applied to a LNG tank farm. The results show that the position of the fire source obtained by the proposed method is the same as that of the actual accident, which proves the feasibility of the method and provides a basis for reducing the fire losses and preventing accidents of LNG.