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[Seminar] Chemistry, Gravity, and Geometry: Integrating Realism into Criticality Safety Evaluations

September 17 @ 4:00 pm - 5:00 pm

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Dr. Tracy Stover
Principal Engineer
Savannah River Nuclear Solutions, LLC

Abstract

Over the last seven years, current and emerging missions at Savannah River Site (SRS) have been evaluated to incorporate realism into the criticality safety evaluations. Over conservatism and bounding (worst theoretical case) assumptions led both to lengthy, complicated analyses and to implementation of restrictive controls in multiple facilities. This presentation will cover efforts made by Dr. Stover and his group to recover margin, simplify analyses, and relax controls in three SRS facilities. This is accomplished primarily by incorporating realistic conditions from chemistry, fire protection, mechanical design, climatology, and nature.  Methods employed span the extremes from advanced multi-physics modeling to the derivation of simplified mass-package checks.

Biography

Dr. Tracy Stover is currently a principal engineer for Savannah River Nuclear Solutions, LLC and lead of the criticality safety group for H-Canyon, the nation’s only remaining industrial scale radiochemical separations facility. He has also supported work for the deployment of the Mobile Plutonium Facility, decommission of the Portsmouth enrichment plant, multiple surplus plutonium storage and disposition programs, and validation efforts on SCALE, MCNP, and SEPHIS. Prior to Savannah River, Dr. Stover worked with Westinghouse Electric Company, LLC as a reactor core designer and spent fuel pool engineer. Dr. Stover holds a B.S. in physics from Murry State University and an M.S. and Ph.D. in Nuclear Engineering from North Carolina State University. He also holds professional engineering licenses in North and South Carolina and is a member of a several national committees through the American Nuclear Society.

 

Thursday, September 17. 2020
4:00 pm seminar
https://ncsu.zoom.us/j/99291616319
216 Mann Hall

Speaker will be in person

Details

Date:
September 17
Time:
4:00 pm - 5:00 pm
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