Beaver Valley response:
Our safety analysis does not include a values below nominal, however we do have include a lower administrative value for the various tanks and Spent Fuel Pool. We do not recover/recycle boron at Beaver Valley and typically send samples from all the tanks, SFP, etc out for B-10 analysis following each refueling to ensure we remain within the Admin limits.
Anthony (A.R.) Burger Supervisor, Reactor Engineering FENOC - Beaver Valley Power Station Phone: (724) 682-4108 Cell: (724) 601-3224 FAX: (724) 682-4250 Email: aburger@firstenergycorp.com
"Kenneth R Pike" <kpike01@comcast. net> To Sent by: pwrrm@retaqs.com pwrrm@retaqs.com cc
Subject 07/08/2009 10:15 [Pwrrm] RCS B10 depletion impact on AM Boron Inj Safety Systems?
Please respond to Kenneth R Pike <kpike01@comcast. net>; Please respond to PWR Reactivity Management <pwrrm@retaqs.com >
In developing a B10 depletion lesson recently I discovered a concern that I have not seen raised before. Does your Safety Analysis for your boron injection or S/D systems (Accumulators, Boron Injection Tank or RWST) consider anything less than nominal B10 abundance (19.9 a/o) in the boron ppm requirement? If the analysis assumes nominal B10 and there is some B10 depletion then the negative reactivity assumed could be more than that actually available (non-conservative) upon injection. Is this accounted for in some fashion?
Thanks in advance
Ken Pike Retaqs, Inc. 610.277.8991 x 253_______________________________________________ PWRRM mailing list PWRRM@retaqs.com http://www.keffective.com/mailman/listinfo/pwrrm
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