A survey from TVA. Please be sure and respond directly to Kathleen Cunningham (kacunningham@tva.gov). Thanks.
Ed McVey
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From: Cunningham, Kathleen Anne [mailto:kacunningham@tva.gov] Sent: Tuesday, November 08, 2011 9:47 AM To: McVey, Edward A.:(GenCo-Nuc) Cc: Keck, James M; Faulkner, Craig S; Kniedler, Gregory S; Barnes, Steven A Subject: Feedback on quantifying SNM due to leaking fuel rod
Hi Ed - hope you are doing well. I noticed your name as the RCRC Chairman so I was wondering if you could forward on the following request for feedback from the other BWROG members.
We have a step in our corporate TVA procedure on Special Nuclear Material that requires us to quantify the amount of fuel rod pellets/fragments if fuel washout has occurred from a leaking fuel rod. We have been introduced to handbooks from Advanced Nuclear Technology who have developed PWRFUELRELEASE 1.0 and BWRFUELRELEASE 2.0, computer models to assess the amount of fissile materials and tramp uranium on core surfaces. This in turn would help us quantify the amount of SNM "displaced" from the fuel rods. We are looking to incorporate these methodologies in our procedure but I was wondering if any other utilities have done this already and if so, would be willing to share their thoughts and possibly their implementation procedures. Also, if they do not quantify the amount of SNM from a leaking fuel rod, please provide thoughts/justification for not providing this info per SNM reporting requirements.
Thank you!
Kathleen Cunningham
Program Manager, Fuel Program Oversight and Fuel Inventory
NPG, Nuclear Fuel Engineering
kacunningham@tva.gov
LP4G-C
423.751.3094 w
423.486.5911 m
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