The Design – Analysis in LPG Storage Tank | ANSYS Fluent
Storage tanks are containers that hold liquids, compressed gases (gas tank; or in U.S.A “pressure vessel”, which is not typically labeled or regulated as a storage tank), or mediums used for the short- or long-term storage of heat or cold. The term can be used for reservoirs (artificial lakes and ponds), and for manufactured containers. The usage of the word tank for reservoirs is uncommon in American English but is moderately common in British English. In other countries, the term tends to refer only to artificial containers.
In the USA, storage tanks operate under no (or very little) pressure, distinguishing them from pressure vessels. Storage tanks are often cylindrical in shape, perpendicular to the ground with flat bottoms, and a fixed frangible or floating roof. There are usually many environmental regulations applied to the design and operation of storage tanks, often depending on the nature of the fluid contained within. Above-ground storage tanks (ASTs) differ from underground storage tanks (USTs) in the kinds of regulations that are applied. Above ground storage tanks can be used to hold materials such as petroleum, waste matter, water, chemicals, and other hazardous materials, all while meeting strict industry standards and regulations.
Reservoirs can be covered, in which case they may be called covered or underground storage tanks or reservoirs. Covered water tanks are common in urban areas.
Storage tanks are available in many shapes: vertical and horizontal cylindrical; open top and closed top; flat bottom, cone bottom, slope bottom, and dish bottom. Large tanks tend to be vertical cylindrical, or to have rounded corners transition from vertical side wall to bottom profile, to easier withstand hydraulic hydrostatically induced pressure of a contained liquid. Most container tanks for handling liquids during transportation are designed to handle varying degrees of pressure.
A large storage tank is sometimes mounted on a lorry (truck) or on an articulated lorry trailer, which is then called a tanker.
In this analysis, it has been tried to simulate and analyze LPG Storage Tank using Ansys Fluent software.
Geometry & Grid
The geometry required for this analysis was generated by Ansys Design Modeler software. The meshing required for this analysis was also generated by Ansys Meshing software. The mesh type used in this analysis is unstructured. The total number of volume properties for geometry is 3,0481e+006 mm³.
In this analysis, the laminar viscosity model is used to check the fluid flow.
The flow of primary input design modeler geometry for this analysis is considered as velocity magnitude and is 1 m/s. The flow output range is also considered as a pressure outlet for the flow output region and gauge pressure is equal to 0 (pascal). The inner wall is also considered a Stationary Wall.
Discretization of Equations
According to the type of flow, the SIMPLE algorithm is used to discretize the Pressure-Velocity Coupling of the solution method. The momentum equation has been discretized in the Second Order Upwind.
The results are presented as density contours as well as streamlines.
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