Deposit Analysis of Pipelines with Hydraulic Grade Lines Measured by Free-Floating, In-Line Tools
Publication: Pipelines 2024
ABSTRACT
This paper demonstrates the methodology for calculating the hydraulic grade line from free-floating, in-line inspection tools and the subsequent deposit analysis of the hydraulic grade line. Neutrally buoyant, in-line inspection tools measure the pressure along the entire pipeline length under regular operating conditions. Deploying multiple tools with a short time delay allows for localized features to be distinguished from changes to the pipeline operation during the deployment. Identified operational changes during the deployment are corrected before calculating the hydraulic grade line using an elevation profile of the pipeline. The resulting hydraulic grade line represents the pressure-head loss due to friction along the pipeline; locations with steeper pressure-head loss indicate restrictions in the pipeline from the build-up of deposits. The gradient of the hydraulic grade line, pipeline specifications, and inspection flow rate are used with the Hazen–Williams equation to calculate the levels of deposits in several segments along the pipeline.
Get full access to this chapter
View all available purchase options and get full access to this chapter.
REFERENCES
American Water Works Association. 2019 State of the Water Industry Report., 2019.
Byington, M., van Pol, A., and van Pol, J. “Pipeline Joint Identification Using Neural Networks,” Pipeline Technology Journal 4, 2023.
Colebrook, C. F. “Turbulent Flow in Pipes, with Particular Reference to the Transition Between the Smooth and Rough Pipe Laws”, J. Inst. Civil Engineering London, vol. 11, 1939.
Cybersecurity & Infrastructure Security Agency, Water and Wastewater Systems Sector., 2023.
Kindree, M., Campbell, S., van Pol, A., and van Pol, J. “Defect Localization Using Free-floating Unconventional ILI Tools Without AGMs,” Pipeline Pigging and Integrity Management, 2022.
Statistics Canada. Canada’s Core Public Infrastructure Survey: Water Infrastructure, 2020, 2022.
Tabuchi, H. “$300 Billion War Beneath the Street: Fighting to Replace America’s Water Pipes,” New York Times, 2017.
USGS. Summary of Estimated Water Use in the United States in 2015., 2015.
US EPA. Office of Research and Development, “Report to Congress: Impacts and Control of CSOs and SSOs,” 2004.
US EPA. Office of Research and Development, “State of Technology for Rehabilitation of Wastewater Collection Systems, 2010.
Moody, L. F. “Friction Factors for Pipe Flow,” ASME Transcripts vol. 66, 1944.
Williams, G. S., and Hazen, A. Hydraulic tables: showing the loss of head due to the friction of water flowing in pipes, aqueducts, sewers, etc. and the discharge over weirs (first ed.), New York: John Wiley and Sons, 1905.
Information & Authors
Information
Published In
History
Published online: Aug 30, 2024
ASCE Technical Topics:
- Buoyancy
- Construction engineering
- Construction management
- Continuum mechanics
- Engineering fundamentals
- Engineering mechanics
- Fluid mechanics
- Hydraulic engineering
- Hydraulics
- Hydrologic engineering
- Infrastructure
- Inspection
- Measurement (by type)
- Pipeline hydraulics
- Pipeline management
- Pipeline systems
- Pipelines
- Pipes
- Pressure measurement
- Pressure pipes
- Water and water resources
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.