This paper presents the FEM results on the strength safety of an inner tank with prestressed tension cables. The inner tank of a full containment LNG storage tank stores a cryogenic liquid of -162℃ and supplies a city gas through a gas pipeline netw...
This paper presents the FEM results on the strength safety of an inner tank with prestressed tension cables. The inner tank of a full containment LNG storage tank stores a cryogenic liquid of -162℃ and supplies a city gas through a gas pipeline network. The inner tank for a full containment LNG tank should support a hydrostatic pressure, boil-off gas pressure, its own weight, thermal expansion load, and dynamic loads, which affect the strength safety of an inner tank structure. The FEM computed results show that a prestressed tension cable increases the strength safety of an inner tank at the lower part of the tank structure. This may recommend the modification of the current design code for the inner tank for increased safety.