Pressure Tank Design

In course

Description

This lecture covers the design considerations for pressure tanks, focusing on the selection of materials, wall thickness, and structural integrity. The instructor discusses the importance of choosing materials that can withstand static pressure, fatigue, and crack presence. Various materials such as stainless steel, composites, and polymers are evaluated based on their properties. The lecture also delves into the criteria for determining the optimal wall thickness to ensure the tank's safety and efficiency. Additionally, the testing procedures for pressure tanks, including pressurization and deformation measurements, are explained to ensure the tanks meet safety standards.

Instructor

Official source

https://mediaspace.epfl.ch/media/0_tbbac4v6

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Related lectures (32)

Related concepts (38)

Pressure measurement

Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area. Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure and display pressure mechanically are called pressure gauges, vacuum gauges or compound gauges (vacuum & pressure). The widely used Bourdon gauge is a mechanical device, which both measures and indicates and is probably the best known type of gauge.

Static pressure

In fluid mechanics the term static pressure has several uses: In the design and operation of aircraft, static pressure is the air pressure in the aircraft's static pressure system. In fluid dynamics, many authors use the term static pressure in preference to just pressure to avoid ambiguity. Often however, the word ‘static’ may be dropped and in that usage pressure is the same as static pressure at a nominated point in a fluid. The term static pressure is also used by some authors in fluid statics.

Dynamic pressure

In fluid dynamics, dynamic pressure (denoted by q or Q and sometimes called velocity pressure) is the quantity defined by: where (in SI units): q is the dynamic pressure in pascals (i.e., kg/(m*s2), ρ (Greek letter rho) is the fluid mass density (e.g. in kg/m3), and u is the flow speed in m/s. It can be thought of as the fluid's kinetic energy per unit volume. For incompressible flow, the dynamic pressure of a fluid is the difference between its total pressure and static pressure.

Pressure head

In fluid mechanics, pressure head is the height of a liquid column that corresponds to a particular pressure exerted by the liquid column on the base of its container. It may also be called static pressure head or simply static head (but not static head pressure). Mathematically this is expressed as: where is pressure head (which is actually a length, typically in units of meters or centimetres of water) is fluid pressure (i.e. force per unit area, typically expressed in pascals) is the specific weight (i.

Structural integrity and failure

Structural integrity and failure is an aspect of engineering that deals with the ability of a structure to support a designed structural load (weight, force, etc.) without breaking and includes the study of past structural failures in order to prevent failures in future designs. Structural integrity is the ability of an item—either a structural component or a structure consisting of many components—to hold together under a load, including its own weight, without breaking or deforming excessively.