Pressure vessel, tank and FEA calculations
Mechanical design to ASME VIII, EN 13445 and PD 5500, API storage tanks and finite-element analysis for the details codes do not cover.
Equipment calculations range from the routine — shell and head thickness, nozzle reinforcement, saddles — to the specialist: lethal service, cladded heavy vessels, lifting and transport of 100-tonne equipment, local stresses where piping loads meet a thin shell. Where the code formulas stop, finite-element analysis takes over.
The studio works for equipment manufacturers and EPC contractors on vessels, columns, heat exchangers, slug catchers, storage tanks and ducts, including fitness-for-service assessments of existing equipment.
What the package covers
- Pressure vessels and columns to ASME VIII Div. 1, EN 13445, PD 5500 and Italian requirements.
- Heat exchangers to TEMA; reboilers, filters, drums.
- Saddles, skirts, lifting lugs and trunnions; lifting and transport conditions.
- Storage tanks to API 650, API 620 and EN 14015; roofs and reinforcements.
- Nozzle local stresses (WRC 297 / 537, FEA) and fitness-for-service to API 579.
- Finite-element analysis with Code_Aster / Salome-Meca for non-standard geometry and thermal-mechanical studies.
Typical deliverables
- Mechanical calculation report.
- FEA report with model description, mesh and stress classification.
- Lifting / transport calculations.
- Recommendations for reinforcements.
Equipment and FEA references
11 documented assignments in this field. All references →
| Project | Contract chain | Country | Calculation scope |
|---|---|---|---|
| Yara abatement duct Tanks, vessels & FEA | Progra / Yara International | Italy | DN 3600 duct and specialist mechanical calculations; ASME VIII Div. 1. |
| TEG plant study Tanks, vessels & FEA | Siirtec Nigi / SNAM | Italy | Thermomechanical study using 2D FEA. |
| Glycol regeneration package Tanks, vessels & FEA | Engineering contractor / ENI | International | ASME VIII / TEMA equipment calculations: filters, surge drum, still column. |
| Sulphur-removal unit Tanks, vessels & FEA | Equipment supplier / ILAM | International | ASME VIII and TEMA reboiler calculations, including lethal service. |
| Finger-type slug catcher Tanks, vessels & FEA | Engineering contractor / Zhaikmunai | Kazakhstan | Global design optimisation, slug analysis and saddle calculations to EN 13445. |
| Akkas slug catcher Tanks, vessels & FEA | Engineering contractor / Daewoo E&C | Iraq | Slug-catcher mechanical and piping calculations. |
| TouatGaz glycol contactor Tanks, vessels & FEA | Engineering contractor / Técnicas Reunidas | Algeria | Approx. 100 t cladded ASME VIII vessel; lifting and transport saddles. |
| Offshore separator Tanks, vessels & FEA | Engineering contractor / ENI | Offshore | ASME VIII separator design and lifting calculations. |
Frequently asked questions
Do you work for equipment manufacturers?
Yes — calculations for vessels, reboilers, filters, slug catchers and ducts have been delivered both to manufacturers and to EPC contractors.
When is FEA needed instead of code formulas?
When geometry or loads fall outside the code rules: large openings, unusual supports, local piping loads on thin shells, thermal gradients, lifting points. Stresses are then classified according to the design-by-analysis rules.
Can you assess existing equipment?
Yes, with fitness-for-service assessments to API 579 and recalculation with the measured thicknesses.
Need a stress analysis, a calculation package or a second opinion?
Send the line list, isometrics or model and the applicable code: you receive a defined scope and a fixed-price proposal.