Introduction-Overview of Piping

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This presentation serves as an introductory overview of piping system design. Learn how the entire piping system is affected by the operating conditions, including flow rate, design pressure and temperature. View how internal and external forces impact the design. See what kind of influence the different modes of failure and the applicable codes have on the entire system. Explore an example piping layout and get an overview of the general support classifications.

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  • Add summery of Webinars“this is the first in the series, we will be talking about….”
  • Mention examples1.) ports to consumers2.) upstream…Mention examples1.) plastics2.) water, LNG3.) steam, gasoline
  • Pipes are used in temperatures ranging from high temperature super heater pipes in a power plant to very low temperature pipe lines in Alaska or North Sea.Picture of Pipeline (foto 103)
  • Pipes are used in temperatures ranging from high temperature super heater pipes in a power plant to very low temperature pipe lines in Alaska or North Sea.Picture of Pipeline (foto 103)
  • Diagrams
  • Diagram
  • Pictures of after effect
  • Picture of a failure
  • Stretched (But not broken) Ivanpa Solar Power California
  • Example from outside source
  • Example: EJ
  • Example of a broken something (variable Florida Power & Light USHA)
  • Maybe diagram showing what each one does
  • Introduction-Overview of Piping

    1. 1. New Webinar SeriesOverview of How Piping Design& Analysis InfluencesPipe Support Selection & DesignSession #1: Introduction: Overview of Piping By Piping Technology & Products
    2. 2. If you have any questions, comments or suggestions,please email us at enews@pipingtech.comTo request a PDH certificate, email enews@pipingtech.com
    3. 3. PT&P Subsidiaries PIPING TECHNOLOGY & PRODUCTS, INC. Member of MSS, SPED, APFA, Fronek AnchorU.S. Bellows, Inc. Sweco Fab, Inc. Pipe Shields, Inc. Darling Ent., Inc.Member of EJMA ASME U-Stamp ISO 9001-2000 Certified ASME Nuclear R-Stamp Qualified
    4. 4. Webinar Series: Overview of How Piping Design &Analysis Influences Pipe Support Selection & Design Topic Session / Date Introduction I. Overview of Piping July 11, 2012 Preliminary Piping I. Initial Layout II. The Total System Design July 18, 2012 July 25, 2012 Basic Concepts of I. Part 1 II. Part 2 Stress Analysis August 1, 2012 August 8, 2012 Influences on Pipe I. Rigid Supports II. Spring Supports III. Restraints Support Design August 15, 2012 August 22, 2012 August 29, 2012
    5. 5. Overview of Piping Purpose of Piping  Piping is essential to transfer resources:  From ports to consumers  From upstream to downstream facilities  Between processes within the facility  Pipelines transport:  Solid Media  Fluid Media  Gas Media
    6. 6. Overview of Piping Industries Where Piping is Used  Power Plants  Conventional and Nuclear  Refineries  Petroleum and Chemical  Transmission Facilities  Natural Gas, Propane and LPG  Treatment Facilities  Water and Sewage  Other Consumer Facilities  Food Processing and Pharmaceutical  Air Conditioning and Refrigeration Systems
    7. 7. Overview of Piping Types of Piping  High Energy Piping  Steam Lines  Process Lines  LNG Lines  Balance of Plant  Feed Water Lines  Duct Work  Fire Suppression
    8. 8. Overview of Piping Types of Piping  High Energy:  Large Temperature Changes  Large Movements  High Degree of Complexity  Volatile Media  Multi-facet/Quantity Support Functions
    9. 9. Overview of Piping Overall Design Considerations  Project Planning  Operating Conditions  Forces  Internal  External  Modes of Failure  Codes & Standards
    10. 10. Design ConsiderationsProject Planning  Materials Available / Used  Facility Location  Application Layout  Space Limitations
    11. 11. Design Considerations Operating Conditions  Flow Rate  Design Pressure  Design Temperature  Ambient  Operating
    12. 12. Design Considerations Forces  Internal (Sustained): loads developed as part of the process  Weight of Pipe  Weight of Media  Pressure  Temperature Differential
    13. 13. Design Considerations Forces  External (Occasional): loads not related to the process  Earthquake  Wind  Explosions (outside)  Trip Valve Loads
    14. 14. Design Considerations Modes of Failure  Determine the type of stresses developed by forces acting on the pipe:  Tension  Compression  Shear  Torsion / Bending  Combination
    15. 15. Design Considerations Modes of Failure  Plastic Deformation  Body undergoes plastic deformation under slip action of grains at sub elevated temperature.  At elevated temperature, slip grains re-crystalize leading to yield.
    16. 16. Design Considerations Modes of Failure  Brittle  Failure by fracture occurs without undergoing yielding.  Brittle fracture occurs in brittle materials. Ductile Brittle
    17. 17. Design Considerations Modes of Failure  Fatigue  Fatigue failure occurs due to cyclic loading.  Initially a small crack develops which grows after each cycle and results in sudden failure.
    18. 18. Design Considerations Modes of Failure  Over Stress by Operating Outside of Material Limits  Various theories of failure have been proposed, their purpose being to establish the point at which failure will occur under any type of combined loading.  Failure theories most commonly used in describing the strength of piping systems:  Maximum Principle Stress Theory  Maximum Shear Stress Theory
    19. 19. Design Considerations Modes of Failure: Over Stress by Operating Outside of Material Limits σy  Maximum Principle Stress Theory  States that yielding in a piping component occurs when the magnitude of any of the three mutually perpendicular principle σz stresses exceeds the yield point strength of the material.  Maximum Shear Stress Theory σx σx ˃ y or σy ˃ y or σz ˃ y S S S  States the failure of a piping component occurs when the maximum shear stress exceeds the shear stress at the yield point of tensile test. (Forms the basis for piping systems σy τyz governed by ASME B31.3) τyx  In the tensile test, at yield, S1 = Sy (yield stress), S2 = S3 = 0 τzy  So yielding in the components occurs when Maximum Shear Stress = τMAX = S1 - S2 / 2 = Sy / 2 σz τxy  The analysis of stress within a body implies the τzx determination at each point of the body of the σx τxz magnitudes of the nine stress components. In other words, it is the determination of the internal distribution of stress.
    20. 20. Applicable Codes / StandardsAttachments (ASME)  American Society of Mechanical Engineers  Piping (B31.1 Power and B31.3 Process)  Purpose of Piping Codes are Guidelines for:  Engineering  Allowable Tolerances  Safe Installation  Inspection  Testing
    21. 21. Applicable Codes / StandardsAttachments (MSS)  Manufacturers Standardization Society  Developed to provide uniform guidelines for:  Valves, Actuators and Modification  Pipe Fittings  Pipe Hangers and Supports  Flanges  Associated Seals
    22. 22. Applicable Codes / StandardsAttachments (Misc. Codes)  Materials  Bolting  Structural Steel  Welding  Finishing
    23. 23. Design Effects on Overall ConfigurationExample Layout Rigid Support For Suspension of Horizontal Line Riser Clamp Suspending a Vertical Line Sway Strut Used to Restrain Vertical Pipeline Welded Shoe to Anchor a Horizontal Line
    24. 24. General Support Classifications  Anchors  Used to prevent movement in all directions  Guides  Rigid support used to prevent movement in one or two directions  Restraints  Used to prevent or resist free movement of the piping in one direction
    25. 25. General Support Classifications  Constant Effort Supports  Used to provide constant lifting force while permitting vertical deflection  Resilient Supports (Springs)  Used to provide a variable lifting force during pipe deflection
    26. 26. General Support Classifications  Rigid Supports  Used in tension or compression mode  Hanger Supports (Weight Bearing)  Load bearing component
    27. 27. General Support Classifications  Limit Stops  Allows free movement through specified deflection, then acts as a rigid support  Resting / Sliding Supports  Provide support from below and offer little to no resistance to horizontal deflection
    28. 28. Next Webinar Session:Section II: Preliminary Piping Design July 18, 2012 Session 2a: Initial Layout In Part 2 of our series on the Overview of Piping Design, we will examine the vital concepts used in developing an initial piping layout. See how the governing design principles including fluid properties, flow rate, and physical laws influence the complete piping system layout. Finally, understand how each of the different piping system components, such as tanks, vessels, valves, and pumps, impact the overall configuration. If you have any questions, comments or suggestions, please email us at enews@pipingtech.com To request a PDH certificate, email enews@pipingtech.com

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