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An Integrated Approach to Piping System Assessment: Incorporating ASME Code Standards Into NDE Inspection Techniques of Safety Related Piping at Wolf Creek Generating Station

[+] Author Affiliations
Eric Houston, Matthew Walter

Structural Integrity Associates, Inc., Centennial, CO

Ken Rach

Structural Integrity Associates, Inc., Naperville, IL

Paper No. PVP2011-57686, pp. 157-162; 6 pages
doi:10.1115/PVP2011-57686
From:
  • ASME 2011 Pressure Vessels and Piping Conference
  • Volume 5: High-Pressure Technology; Nondestructive Evaluation; Nuclear Engineering
  • Baltimore, Maryland, USA, July 17–21, 2011
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-4455-7
  • Copyright © 2011 by ASME

abstract

This paper presents an overview of an integrated approach to piping system assessment. This project specific example directly assesses the condition of a large portion of the above ground Essential Service Water (ESW) at Wolf Creek Generating Station (WCGS). Prior to inspections, it is important to define acceptance criteria. In this example, multiple levels of screening were developed with varying acceptance criteria and required actions for acceptance. Inspections were conducted using multiple state of the art techniques, including Guided Wave Technology (GWT) and linear phased array (LPA). Screening levels were based on the original plant Code of Construction, as well as an NRC accepted ASME Code Case. The screening levels were developed in accordance with the inspection capabilities and limitations of each technology. This paper presents an overview of the process, the analysis that was conducted, the subsequent inspections, and general conclusions about the state of the system under investigation. The advantages and limitations of this integrated approach to piping system assessment are also discussed.

Copyright © 2011 by ASME

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