O’Donnell Consulting performed a seven-year program to recertify pressure vessels and pressure systems for the NASA-Glenn Research Center.
Some of the vessels and systems were over forty years old, and were part of the original NACA installation. The program covered vessels and piping systems, including:
- Performing stress, fatigue and fracture analyses to establish regions to be subjected to nondestructive examination.
- Performing nondestructive examination of selected regions and features.
- Performing repairs or analysis to determine the permanent or temporary acceptability of defects.
- Defining the conditions and lifetime for which the system has been recertified, and the calendar or cyclic interval at which inspections are necessary.
- Establishing area requiring repair and recommending repair and/or replacement based on cost effectiveness. In addition, vessels were evaluated in conformance to ASME Boiler and Pressure Vessel Code. Pumps and valves were also analyzed to various conditions, and cost-effective solutions were made for malfunctions.
– API 579-1/ASME FFS-1 Fitness for Service on a Brewery Tank
– API 579-1/ ASME FFS-1 Fitness for Service on Components
– Fitness For Service
– (PDF) “Weld Defects and Failures: Quantifying Fitness For Service – How Finite Element Mathematical Simulations can Mitigate Risk, Cut Costs and Improve Overall Safety”
– Publications – Heat Exchangers, Pressure Vessels, Welds and Other Applications, Fatigue, Elevated Temperature