Engineering Analysis And Design

 

 

Multi-Canister Overpack (MCO) & Transportation Cask SARP

Q-Metrics provided the thermal safety analysis of the MCO and MCO transportation cask for the safety analysis report for packaging (SARP).  The SARP evaluated operations at the DOE Hanford Site and covered the transfer of spent nuclear fuel (SNF) between the K-Basins and the Cold Vacuum Drying Facility (CVDF) and between the CVDF and the Canister Storage Building (CSB).  This work, initiated with the conceptual design analysis for the cold vacuum drying process and the now abandoned ‘hot conditioning process’, provided bounding safety analysis and operational calculations for the thermal and gas generation sections of the SARP. 

The calculations involved working with SNF Project personnel to establish the appropriate reaction rate equations for chemical heat and gas generation, the bounding reaction areas for the damaged fuel and scrap elements, and the operational constraints to be applied to the analysis.  The generation of hydrogen gas from the reaction of the uranium metal with water was an important part of the analysis.  Two distinct modes of transfer were evaluated: water flooded during the transfer between the K-Basins and the CVDF, and in a dry, inert atmosphere during the transfer between the CVDF and the CSB.  

In an associated work scope with the MCO Transportation Cask SARP, Q-Metrics authored the thermal chapter for the MCO Topical Report.  This work involved coordinating the work of a number of contractors, providing a consistency check between the various parts of the work, and assembling the V&V documentation for the work. 

Q-Metrics was also called upon to address comments received on the SARP analysis from the Dept. Of Energy's review team and from the DNFSB (Defense Nuclear Fuel Safety Board) and to provide peer review support for miscellaneous studies conducted by other engineering organizations.

 
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Last modified: September 06, 2002