Engineering and Consulting Services: Piping Stress Analysis

ACE carries out pipe stress analysis of new and/ or existing facilities. The analyses performed take into account the common loading conditions applied to piping and/or more complicated loading conditions requiring in-depth analysis (including surge, water hammer, frequency, harmonic loads, etc.) The scope of services is as follows:

• Develops engineering documents such as specifications
• Performs stress analysis 
• Reviews piping design report to be consistent with design specification
• Checks input data, calculations, results, and makes needed recommendations
• Verifies that piping stresses are within the code allowable limits (ASME B31.1 and ASME B31.3)
• Verifies that piping loads on fixed equipment are within the code allowable limits
• Verifies that piping loads on rotary equipment are in accordance with appropriate standards and specifications like API 610, NEMA-23, etc.
• Designs rigid and spring supports and verifies the stress components of structures are within a safe margin
• Equipment modeling in piping stress analysis and calculation of nozzle stiffness 
• Calculates piping natural frequencies
• Calculates allowable deflections  in various operating conditions
• Calculates thermal movements
• Evaluates piping flexibility with “Piping Flexibility Check” (Developed by ACE)
• Evaluates Leakaging Flange
• Performs transient loads and water hammer analysis (Refer to the “Transient Loads and Pressure Surge Analysis” service)
• Evaluates piping vibration analysis, if needed (Refer to the “Piping Vibration Analysis” service)
• Conducts fatigue analysis based on ASME Sec. VIII Div.2 (Refer to the “Fatigue and Fracture Analysis” service)
• Evaluates seismic and wind loads based on ASCE 07
• Conducts fracture analysis of pressure vessel based on ASME criteria (Refer to the “Fatigue and Fracture Analysis” service)
• Conducts high level of detail needed to analyze accurately to predict piping stresses and piping loads and solve piping problems

If piping stresses and/or loads on connected equipment exceed their allowable limits, recommendations will be made to reduce the overloaded components to acceptable limits. 

APPLICATIONS

• New Designs (Oil, Gas, Petrochemical, and Thermal Power Plants)
• Peer Review of Designs by Others
• Existing Systems Being Modified
• Existing Systems with Maintenance Problems
• Rerating Piping System

SOFTWARE

• Caesar II
• PRG-Soft
• ABAQUS- If required
• Tools and Spreadsheets developed by ACE