Abstract
The objective of this paper is to develop the vessel design pre-qualification for a typical annular tank. The pressures and pressure combinations being considered are first combined maximum working internal pressure plus static pressure second combined maximum accidental internal pressure plus static pressure and third combined internal working pressure plus static pressure plus seismic. The FEA modeling method is used to determine if the Annular Tank’s deflection remain within the criticality deflection tolerance and ASME Code stresses are not exceeded. If the tank’s deflection and/or stresses are exceeded, tank original design is modified and new analysis is performed. This process is repeated until the Annular Tank’s design is within the acceptable range of ASME Code stresses and deflection.
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