Tank Inspection NDE Results for Waste Tanks 25, 26, 33, 34, 41 and 50 (FY2019)

Technical Report · Mon Oct 28 04:00:00 EDT 2019

DOI:https://doi.org/10.2172/1807897· OSTI ID:1807897

Elder III, James B. ^[1]; Vande Kamp, Rodney W. ^[1]

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1. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

In-service inspection is an essential element of a comprehensive structural integrity program for the carbon steel waste tanks at the Savannah River Site. Inspection confirms the effectiveness of corrosion controls used to preclude localized and general corrosion of the tanks. Ultrasonic inspection (UT) is used to detect general wall thinning, pitting and interface attack, as well as vertically oriented cracks through inspection of an 8.5 inch wide strip extending over the accessible height of the primary tank wall and knuckle regions. selected welds are also inspected for cracking parallel or perpendicular to the weld. The inspections were performed from the annular space of the Type III/IIIA waste storage tanks. The ISI Program calls for thickness mapping and crack detection scans on specified areas of the tank covering all present and historic waste interface levels and selected welds with particular emphasis on the highest stress region of the tank.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States); Savannah River National Lab (SRNL), Aiken, SC (United States)
• Sponsoring Organization: USDOE Office of Environmental Management (EM)
• DOE Contract Number: AC09-08SR22470
• OSTI ID: 1807897
• Report Number(s): SRNL-STI--2019-00519
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
inspection
waste tank