Advanced cathodic protection design of storage tank internal surfaces through FEM modelling

摘要

Above ground crude oil storage tank bottoms usually consist of welded 6-8 mmm thick steel plates.The tank bottom does not have a structural function,except for the plates connected to the tank shell,and its main purpose is to contain the stored fluid.The so-called secondary containment,which typically consists of a high-density polyethylene membrane laid below the tank bottom,is often applied to enhance the containment capacity for polluting stored fluid.