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Colin Judge: Testing structural materials in Idaho’s newest hot cell facility
Idaho National Laboratory’s newest facility—the Sample Preparation Laboratory (SPL)—sits across the road from the Hot Fuel Examination Facility (HFEF), which started operating in 1975. SPL will host the first new hot cells at INL’s Materials and Fuels Complex (MFC) in 50 years, giving INL researchers and partners new flexibility to test the structural properties of irradiated materials fresh from the Advanced Test Reactor (ATR) or from a partner’s facility.
Materials meant to withstand extreme conditions in fission or fusion power plants must be tested under similar conditions and pushed past their breaking points so performance and limitations can be understood and improved. Once irradiated, materials samples can be cut down to size in SPL and packaged for testing in other facilities at INL or other national laboratories, commercial labs, or universities. But they can also be subjected to extreme thermal or corrosive conditions and mechanical testing right in SPL, explains Colin Judge, who, as INL’s division director for nuclear materials performance, oversees SPL and other facilities at the MFC.
SPL won’t go “hot” until January 2026, but Judge spoke with NN staff writer Susan Gallier about its capabilities as his team was moving instruments into the new facility.
Y.-M. Ferng, J. H. Hsieh, C. D. Horng
Nuclear Technology | Volume 153 | Number 2 | February 2006 | Pages 197-207
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT06-A3700
Articles are hosted by Taylor and Francis Online.
A methodology that combines the Eulerian/Lagrangian droplet flow model and the droplet impingement erosion model is proposed in this paper to qualitatively predict the distributions of wall thinning locations on the shell wall of feedwater heaters (FWHs). This hybrid computational fluid dynamics model can simulate the three-dimensional distribution of steam flow and the rebound characteristics of droplets within the FWH shell. Coupled with the droplet flow characteristics, an appropriate indicator derived from the droplet impingement model is used to calculate the possible locations of severe wall thinning. The predicted wear sites on the shell wall correspond well with the plant-measured ones. Based on this good agreement, the methodology proposed herein might be used to help construct the monitoring project of wall thickness measurement for FWHs in the power plant, especially in the measuring areas on the shell wall.
