ML12083A025
| ML12083A025 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 03/21/2012 |
| From: | Orf T Division of Operating Reactor Licensing |
| To: | Wasik C Florida Power & Light Co |
| References | |
| Download: ML12083A025 (2) | |
Text
1 NRR-PMDAPEm Resource From:
Orf, Tracy Sent:
Wednesday, March 21, 2012 3:05 PM To:
Wasik, Chris
Subject:
St. Lucie 1 EPU SRXB spent fuel criticality comments Importance:
High
- Chris, Below are the comments we discussed during our phone call yesterday.
- Thanks, Trace Comment 1:
Regarding within rack interface requirements specified in Note 4 of Figure 5.6-1 and Figure 5.6-2, the licensee proposed:
The storage arrangements of fuel within a rack module may contain more than one pattern. There are no interface limitations within Region 1 between rack modules or within racks, however, each assembly must meet the burnup requirements of each 2x2 array that it resides within.
SRXB suggests the following or similar:
The storage arrangements of fuel within a rack module may contain more than one pattern. Each cell is a part of up to four 2x2 arrays, and each cell must simultaneously meet the requirements of all those arrays of which it is a part.
[The key wording here is to be clear that the cell must meet the requirements of all the arrays (that it is in) and not just some of the arrays.]
Comment 2:
Remove occurrences of or equivalent (5 absorber rods) or provide an method for evaluating equivalent negative reactivity.
Comment 3:
Fix typo in Note 5 of Figure 5.6-3.
Comment 4:
An update of Note 1 of Table 5.6-1 seems appropriate since the licensee proposes to remove the specific minimum burnup values from the table.
Comment 5:
Does an open cell mean the same as an empty cell? WH is also used. Consider using one descriptor throughout.
Hearing Identifier:
NRR_PMDA Email Number:
306 Mail Envelope Properties (Tracy.Orf@nrc.gov20120321150500)
Subject:
St. Lucie 1 EPU SRXB spent fuel criticality comments Sent Date:
3/21/2012 3:05:13 PM Received Date:
3/21/2012 3:05:00 PM From:
Orf, Tracy Created By:
Tracy.Orf@nrc.gov Recipients:
"Wasik, Chris" <Chris.Wasik@fpl.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 1555 3/21/2012 3:05:00 PM Options Priority:
High Return Notification:
No Reply Requested:
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