User Comments
{"We use CAEPIPE to design the process coils in our steam cracking furnaces. These coils operate at temperatures between 1,200°F & 2,000°F. Supports must be sized properly to prevent coil distortion and rapid failure. CAEPIPE graphic displays are extremely useful in determining if we have input the geometry correctly and in evaluation of results." }
Arthur DiNicolantonio, Exxon, CAEPIPE user for over 12 years
{"The new graphics rendering feature [in CAEPIPE v5.x] is fantastic. It far exceeds the graphics of any other piping stress analysis program I have seen."}
Ed Patnode, Advanced Thermal, CAEPIPE user for over 10 years
Problem: Increased Project Execution Time Due to Back and forth design iterations between Design and Stress Departments
It is common practice worldwide for piping designers to route pipes considering mainly space, process and flow constraints (such as pressure drop) and accommodate other requirements arising from constructability, operability and repairability.
Unfortunately, often pipe stress requirements are not sufficiently considered while routing and supporting piping systems, especially in providing adequate flexibility to absorb expansion or contraction of pipes due to thermal loads. So, when “as designed” piping systems are given to pipe stress engineers for analysis, they soon realize the systems are “stiff” and suggest routing changes to make the systems more flexible. Piping designers, in turn, make routing changes and send the revised layout back to the engineers to check for compliance again.
Such “back and forth” design iterations between layout and stress departments continue until a suitable layout and support scheme is arrived at, resulting in an undesirable increase in project execution time thereby increasing project costs.
Problem Becomes Worse Due to Increasing Plant Operating Temperatures and Pressures
In recent years, to increase plant output, the operating pressures and temperatures in operating plants have been increasing.
Higher operating pressure: Increases pipe wall thickness, which in turn, increases piping stiffness, making the system "stiffer"
Higher operating temperature: Applied on such a “stiffer” system increases pipe thermal stresses and support loads.
Overall effect: An already undesirable problem (delay in project execution time) is now made worse.
Solution: Nip in the bud!
Piping designers need to make the piping layout as flexible as they can at the time of routing to substantially reduce the number of design iterations required between piping design and stress departments.
Benefit #1: Huge time savings during design stage
Benefit #2: A more flexible system from the onset that can take higher operating temperatures and pressures.
Elegant tool that implements this solution: CheckStress
As an add-on pipe stress check software for 3D Plant Design systems such as PDMS, CADMATIC etc., it helps designers to decide “Code Compliant” pipe routing during layout stage as a first level stress check by designers. So, by using CheckStress, the designer sends “Code Compliant” piping systems to pipe stress engineers for further detailed analysis and stress report preparation.
Features
• Reads piping geometry, section and material properties from 3D Plant Design system.
• Can include different pipes to carry out stress check.
• Uses temperature and pressure assigned for piping from 3D Plant Design system to perform stress analysis.
• Reads pipe support details from 3D Plant Design system and creates Supports, Hangers, Guides, etc. in CheckStress.
• Enables piping code compliance by displaying stress ratio contour plots for Sustained (weight + pressure) and Expansion load cases.
• Assists in locating hangers and supports by showing deflected shapes for Sustained, Operating and Expansion load cases.
• Generates CAEPIPE input file.
• CAESAR-II input file generation is optional.
So, if you want to start saving time on your projects right now, you can get started by making a telephone call - 800-300-0778. We will be happy to assist you.
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