Thermal Structural Stability of Steel Tanks with Medium Oil Storage Capacity
DOI:
https://doi.org/10.70567/mc.v41i2.8Keywords:
Tanks, Fire, Heat Transfer, Buckling, Medium DiameterAbstract
Understanding the behavior of sheet metal structures in fire events at oil refineries is crucial for predicting modes of failure and achieving more efficient designs. Batteries have tanks with different diameters, heights and types of roofs. In this paper, an oil storage tank with a medium diameter (D=17m) compared to typical sizes is modeled. Buckling analyses are conducted to assess the thermal loads the tank can withstand before it deforms and continue absorbing thermal load. The heat source is taken from a previously performed finite element heat transfer analysis. Previous work was conducted by the authors using a smaller tank with a conical roof (D=11m) with a flame originating from the bottom, a diameter separation between tanks, no flame inclination, and no fluid, reaching a critical temperature of 400°C. This analysis aims to replicate the post-critical behavior for medium-diameter tanks, considering different separations between tanks. The comparison with the smaller diameter indicates that the initial instabilities occur at lower temperatures for the larger diameter.
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