Pressure Vessel Design (ASME Section VIII)
تصميم أوعية الضغط (ASME القسم الثامن)
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- Available in-house
- Fees from
- —per delegate
- Formats
- In-house training0 sessions
- Duration
- 5 daysCertificate
Overview
Pressure vessels are designed and built to strict codes because their failure can release large amounts of energy and hazardous fluids. ASME Section VIII is the most widely used code for pressure vessels in oil, gas, petrochemical and power facilities around the world, and engineers involved in design, procurement, fabrication, inspection or modification of vessels need a sound understanding of its rules. Misinterpreting design requirements, materials, welding or testing provisions can lead to unsafe equipment, costly rework, delays and disputes between owners, contractors and fabricators.
This course provides a practical understanding of pressure vessel design according to ASME Section VIII Division 1, with an introduction to Division 2. Participants learn the structure and scope of the code, design conditions, allowable stresses and joint efficiencies, and the calculation of shells, heads, cones and nozzles under internal and external pressure. The course covers opening reinforcement, flanges, supports and loads such as wind, seismic and nozzle loads, materials and impact testing requirements, and fabrication, welding, heat treatment and examination rules. It also explains pressure testing, overpressure protection, data reports, design reviews and design software.
Objectives
- Explain the structure, scope and organisation of ASME Section VIII
- Define design conditions, allowable stresses and joint efficiencies correctly
- Calculate shells, heads, cones and nozzles under internal and external pressure
- Design opening reinforcement and evaluate flanges, supports and external loads
- Apply material, impact testing, welding and heat treatment requirements
- Specify examination, pressure testing and overpressure protection correctly
- Review vessel design documents, data reports and calculation packages
Who should attend
Mechanical and design engineers, inspection and integrity engineers, project and procurement engineers, fabricators and QA/QC staff.
Training methodology
The course combines explanation of code requirements with worked design examples, real vessel drawings, calculation packages and manufacturer data reports. Participants carry out calculations for shells, heads, cones, nozzles and reinforcement, check external pressure designs, review material and impact testing requirements and evaluate a complete design package against the code. Demonstrations show how design software results should be checked. Common design and fabrication errors are discussed using real examples. Group exercises reinforce learning, and each day ends with a short quiz. Participants benefit from bringing a copy of the code.
Programme outline
Day1Code Structure and Design Basis
- Pressure vessel hazards and the role of codes in ensuring safe design and construction
- Structure and scope of ASME Section VIII Divisions 1 and 2 and their use
- Responsibilities of users, manufacturers and authorised inspectors under the code
- Design pressure, design temperature, minimum design metal temperature and corrosion allowance
- Allowable stresses, material tables in Section II and the use of joint efficiencies
- Design loads and load combinations, including weight, wind, seismic and piping loads
- Practical exercise: defining design conditions and allowable stresses for a new separator
Day2Shells, Heads and Cones
- Thickness calculations for cylindrical and spherical shells under internal pressure
- Design of ellipsoidal, torispherical, hemispherical and flat heads with worked calculation examples
- Conical sections, knuckles and the reinforcement required at cone-to-cylinder junctions
- External pressure design, stiffening rings and the use of external pressure charts
- Maximum allowable working pressure and its calculation for existing vessels
- Thickness tolerances, forming allowances and the minimum thickness after fabrication
- Practical exercise: calculating shell and head thicknesses and checking external pressure design
Day3Nozzles, Openings, Flanges and Supports
- Nozzle design, neck thickness and the rules for openings in shells and heads
- Opening reinforcement calculations using the area replacement method with practical examples
- Standard flanges, custom flange design and the selection of flange ratings
- Vessel supports: saddles, skirts, legs and lugs and their design considerations
- Nozzle loads from piping and the assessment of local stresses at attachments
- Lifting lugs, platforms and other attachments and their effect on vessel design
- Practical exercise: checking nozzle reinforcement and reviewing a support design
Day4Materials, Fabrication and Examination
- Material selection, specifications and the requirements for impact testing at low temperatures
- Welding procedure qualification and welder qualification requirements under ASME Section IX
- Weld joint categories and types and the radiography requirements for each
- Post-weld heat treatment requirements and the permitted exemptions for different materials
- Non-destructive examination methods and the acceptance criteria given in the code
- Fabrication tolerances, inspection hold points and quality control during manufacture
- Practical exercise: determining impact testing and radiography requirements for a vessel
Day5Testing, Protection and Design Review
- Hydrostatic and pneumatic test requirements and the calculation of test pressures
- Overpressure protection requirements and their relationship with the selection of relief devices
- Nameplates, code stamping, manufacturer data reports and the documentation handed to owners
- Introduction to Division 2 design by analysis and when it offers advantages
- Checking design software results and common errors in vessel calculation packages
- Group exercise: reviewing a complete vessel design package against code requirements
- Final assessment and discussion of vessel design issues in participants' projects
Dates and fees
There are no scheduled dates for this course at the moment. Request it as in-house training, or ask us about the next date.
Certificate
Every delegate who attends the full programme receives a Harfard Technology certificate of completion stating the course title, duration, dates and venue.
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