PWRRM June 2006

pwrrm@retaqs.com

5 participants
5 discussions

RE: [Pwrrm] Rx Eng Self Assessment Support
by Delk, Whiting S 19 Jun '06

19 Jun '06

We are starting our outage during this time frame. -----Original Message----- From: pwrrm-bounces(a)retaqs.com [mailto:pwrrm-bounces@retaqs.com] On Behalf Of Berles, Brad W. Sent: Thursday, June 08, 2006 11:05 AM To: pwrrm(a)keffective.com Subject: [Pwrrm] Rx Eng Self Assessment Support Palisades will be conducting a Reactor Engineering Focused Self-Assessment in September. We are looking for one industry peer to participate on that assessment. If anyone would be willing to participate, please let me know as soon as possible. We are a CE plant, but a Westinghouse or B&W perspective is also welcome. Thanks, Brad Berles Palisades Nuclear Plant 269-764-2761

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RE: [Pwrrm] Shutdown bank withdrawal guidance question
by Lehmann Elmer E 13 Jun '06

13 Jun '06

At Wolf Creek we are the same way. We provide guidance for withdrawing control rods and do a 1/M plot, but for Shutdown Banks, the operators pull them a bank at a time watching the NI's to make sure there are no large changes in source counts. We verify Boron Concentration prior to pulling any rods, but do NOT provide specific guidance for pulling the Shutdown Banks. Normally, the Shutdown Banks are pulled well in advance of pulling the Control Banks in preparation for a startup. We still dilute to criticality following a refuel shutdown. -----Original Message----- From: pwrrm-bounces(a)retaqs.com [mailto:pwrrm-bounces@retaqs.com]On Behalf Of BRYSON, DAMON V Sent: Thursday, June 08, 2006 9:59 AM To: pwrrm(a)keffective.com Subject: [Pwrrm] Shutdown bank withdrawal guidance question Benchmarking question: At VC Summer we have detailed procedure guidance for the operators on how to withdraw control rods during the approach to criticality. However, we do not have any procedure guidance on how to withdraw shutdown bank control rods. Some of our operators withdraw the shutdown banks continuously while watching other indications. Some of them stop every 25 steps to look at other indications, and then continue on. Others stop every 25 steps and ask for supervisor concurrence before continuing. What kind of guidance do your plants have on withdrawing shutdown banks? You can email me at the address below, and I will compile all the responses and share them with the entire group. Thanks in advance for your help. Damon Bryson (803) 345-4814 dbryson(a)scana.com

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Re: [Pwrrm] Shutdown bank withdrawal guidance question
by paul_gurney＠fpl.com 08 Jun '06

08 Jun '06

At Seabrook, we withdraw the shutdown banks. Other than the expectation to be monitoring count rate ther is no requirement to periodically stop the withdrawal. Paul Gurney Seabrook Station "BRYSON, DAMON V" <DBRYSON(a)scana.co To: pwrrm(a)keffective.com m> cc: Sent by: Subject: [Pwrrm] Shutdown bank withdrawal guidance pwrrm-bounces@ret question aqs.com 06/08/2006 10:58 AM Please respond to "PWR Reactivity Management" Benchmarking question: At VC Summer we have detailed procedure guidance for the operators on how to withdraw control rods during the approach to criticality. However, we do not have any procedure guidance on how to withdraw shutdown bank control rods. Some of our operators withdraw the shutdown banks continuously while watching other indications. Some of them stop every 25 steps to look at other indications, and then continue on. Others stop every 25 steps and ask for supervisor concurrence before continuing. What kind of guidance do your plants have on withdrawing shutdown banks? You can email me at the address below, and I will compile all the responses and share them with the entire group. Thanks in advance for your help. Damon Bryson (803) 345-4814 dbryson(a)scana.com _______________________________________________ PWRRM mailing list PWRRM(a)retaqs.com http://www.keffective.com/mailman/listinfo/pwrrm

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Rx Eng Self Assessment Support
by Berles, Brad W. 08 Jun '06

08 Jun '06

Palisades will be conducting a Reactor Engineering Focused Self-Assessment in September. We are looking for one industry peer to participate on that assessment. If anyone would be willing to participate, please let me know as soon as possible. We are a CE plant, but a Westinghouse or B&W perspective is also welcome. Thanks, Brad Berles Palisades Nuclear Plant 269-764-2761

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Shutdown bank withdrawal guidance question
by BRYSON, DAMON V 08 Jun '06

08 Jun '06

Benchmarking question: At VC Summer we have detailed procedure guidance for the operators on how to withdraw control rods during the approach to criticality. However, we do not have any procedure guidance on how to withdraw shutdown bank control rods. Some of our operators withdraw the shutdown banks continuously while watching other indications. Some of them stop every 25 steps to look at other indications, and then continue on. Others stop every 25 steps and ask for supervisor concurrence before continuing. What kind of guidance do your plants have on withdrawing shutdown banks? You can email me at the address below, and I will compile all the responses and share them with the entire group. Thanks in advance for your help. Damon Bryson (803) 345-4814 dbryson(a)scana.com

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PWRRM June 2006