Having trouble viewing this video?

Stacked Vessel Design Using COMPRESS

Certain industrial processes require pressure vessels to be built with multiple chambers operating under different design conditions. COMPRESS and INSPECT both support multiple pressure chamber, stacked vessel designs.  Benefits of using this feature include:

  • Individual pressures, temperatures, materials, corrosion allowances etc. can be specified for each pressure chamber.

  • Assurance that changes made to the chambers are accounted for in the overall vessel design.

  • Proper calculation of wind, seismic and other loads due to consideration of the vessel as a single structure.

  • Separate liquid levels can be specified for each chamber with the resulting static head automatically accounted for.

  • Intermediate support skirts, as many as are required, are properly designed.

  • Accurate weight calculations are performed.

How to Model A Multiple Chamber Stacked Vessel

  1. Specify either an internal head (check box on head dialog) or an intermediate skirt.
  2. Establish the chamber’s operating conditions. Add liquid levels, nozzles and other attachments.
  3. Press F3 to run the code calculations. View each chamber’s MAWP in the Pressure Summary report.