Significance of Weight Measurements in Pressure Vessel Design

April 14, 2020

Pressure vessel designs in Australia must be compliant with AS1200, AS1210, AS3920, AS 3788, AS4037, AS4458, AS4343, AS3992, AS2791, ASME VIII, ASME IX, EN286-1 and many other national and international standards. Pressure vessel design involves parameters such as maximum safe operating pressure and temperature, safety factor, corrosion allowance and minimum design temperature (for brittle fracture). Pressure vessels are held together against the gas pressure due to tensile forces within the walls of the container. The mass of a certain pressure vessel must scale with the volume of the gas it contains. Generally speaking, weight measurements are important in a pressure vessel design. Below are the significance of weight measurements in pressure vessel design.

Weight Measurement in Pressure Vessel Design Enables it to Resist Deformation

Pressure vessels and the structures used to support them must be able to resist deformation and collapse when subjected to various loads, classified into major and subsidiary loads. Major loads must always be considered in the design of a pressure vessel, while subsidiary loads only need to be subjected to formal stress analysis when there is no other way to show that they can be supported. Subsidiary loads can often be evaluated by comparison with existing vessels.

Weight Measurement in Pressure Vessel Design Enables it to Handle the Amount of Pressure

Loads classified as major loads include design pressure, taking into account pressure heads; maximum operational weight, maximum weight under testing, wind, earthquake, and loads supported by the vessel. It allows the pressure vessel to handle the amount of pressure it has to take.

Weight Measurement in Pressure Vessel Design Considers the Unfavorable Scenarios

Loads classified as subsidiary loads include: local stresses caused by supports, internal structures, and connecting pipes, shock loads caused by water hammer or surging, bending moments due to displacement of center of pressure, loads caused by differences in temperature and thermal expansion coefficients, and those caused by fluctuations of temperature and pressure. The worst case scenario will be considered, and the design will be based around that loading.

For more information on the significance of weight measurements in pressure vessel design, contact Fusion-Weld. We service all industries that require and use pressure equipment within their Plant, from very small air receiver vessels to large and complex static storage vessels, process vessels and columns used in the Gas Storage Industry, Power Industry, Petrochemical / Pharmaceutical Plants, Oil and Gas Refineries.

Contact Details

Fusion - Weld Engineering Pty Ltd
ABN 98 068 987619

1865 Frankston Flinders Road,
Hastings, VIC 3915

Ph: (03) 5909 8218

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