Due to its recognized resistance against galvanic corrosion, microbiological induced corrosion (MIC), and fouling compared to carbon steel, high density polyethylene (HDPE) piping material has recently been proposed for replacement of carbon steel piping in nuclear safety related class 3 service water buried piping applications. However, there are some unique challenges requiring special design considerations due to HDPE’s visco-elastic nature, need for relatively thicker pipe walls, and very low material allowable stress. This paper examines special design considerations such as design factor, minimum required wall thickness for pressure, thermal gradient effects, and cumulative effect from loads of different duration. Useful guidelines from design and analysis perspective are provided.
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ASME 2009 Pressure Vessels and Piping Conference
July 26–30, 2009
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping
ISBN:
978-0-7918-4366-6
PROCEEDINGS PAPER
Special Design Considerations for Buried HDPE Piping in Nuclear Safety Related Applications
Chakrapani Basavaraju,
Chakrapani Basavaraju
U. S. Nuclear Regulatory Commission, Washington, DC
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Kamal A. Manoly
Kamal A. Manoly
U. S. Nuclear Regulatory Commission, Washington, DC
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Chakrapani Basavaraju
U. S. Nuclear Regulatory Commission, Washington, DC
Kamal A. Manoly
U. S. Nuclear Regulatory Commission, Washington, DC
Paper No:
PVP2009-77747, pp. 135-142; 8 pages
Published Online:
July 9, 2010
Citation
Basavaraju, C, & Manoly, KA. "Special Design Considerations for Buried HDPE Piping in Nuclear Safety Related Applications." Proceedings of the ASME 2009 Pressure Vessels and Piping Conference. Volume 3: Design and Analysis. Prague, Czech Republic. July 26–30, 2009. pp. 135-142. ASME. https://doi.org/10.1115/PVP2009-77747
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