ML18065B001
| ML18065B001 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 10/09/1996 |
| From: | Bordinw T CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9610160014 | |
| Download: ML18065B001 (4) | |
Text
- ,,.
-~
consumers Power l'OWERINli llllUllliAN-S l'IUllillEJS Palisades Nuclear Plant: 27780 Blue Star Memorial Highway, Covert, Ml 49043 October 9, 1996 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555
(.
DOCKET 50-255 - LICENSE DPR PALISADES PLANT Thomas C. Bordlne Manager, Licensing REVISION TO PIDAL IN-CORE MONITORING CODE - REQUEST FOR ADDITIONAL INFORMATION
- In a letter dated August 6, 1996, Consumers Power Company requested NR~ approval for a ~evision of the PIDAL (Palisades In-core Detector Algorithm) in-core monitoring computer code. This revision involves the replacement of Siemans Power Corporation's codes (PDQ and XTG) with SIMULATE-3, an advanced three-dimensional two-group reactor analysis code.
During a meeting on September 25, 1996, Consumers Power Company offered to provide the NRC reviewer with any additional background information that might facilitate his review of the proposed revision. The reviewer noted that it would be helpful to have a chart showing the change in predicted rhodium depletion rates using the new methodology.
The following attachment contains the requested information. Provided is a comparison of PDQ and SIMULATE-3 determinations for cycle 11 rhodium reaction rates at 0.0 and 13.0 GWD/MTU. Since the five-level SIMULATE-3 reaction rates have to be collapsed to two dimensions for comparison with PDQ, the reaction rates are only provided for instrumented locations with all 5 levels operable. The fraction of remaining l
[bo_dium from one string in each quarter core location was utilized to determine the self-9610160014 961009 Fr 1
I PDR
._ApOCK 05000255 : ' -
I
~.
P *.
PDR I '
A CMS ENER6Y COMPANY f{P'
shielding correction contained witflin the listed SIMULATE-3 reaction rates at 13.0 GWD/MTU. Since all the detectors were new at the beginning of cycle 11, no self-shielding correction was necessary at 0.0 GWD/MTU.
SUMMARY
OF COMMITMENTS This letter contains no new commitments and no revisions to existing commitments.
Thomas C. Berdine Manager, Licensing CC Administrator, Region Ill, USNRC Project Manager, NRR1 USNRC NRC Resident Inspector - Palisades Attachment 2
ATTACHMENT CONSUMERS POWER COMPANY PALISADES PLANT DOCKET 50-255 REQUESTED ADDITIONAL INFORMATION REGARDING REVISION TO. PIDAL IN-CORE MONITORING CODE 1 Page
11 RHODIUM REACTI~TES (E+l5) AT CYCLE 0.0 GWD/MTU 5.097 0.000 0.000 0.000 0.000 5.692 0.000 2.314 4
' 4. 63'9 0.000 0.000 0.000 0.000 5.517 0.000 2.048 9.875 0.000 0.000 0.000 0.000 3.174 0.000 13.012 5.451 6.112 5.386 0.000 5.622 0.000 4.900 0.000 5.003 5.679 4.968 0.000 5.399 0.000 4.828 0.000 8.965 7.627 8.411 0.000 4.133 0.000 1.496 0.000 5.443 0.000 5.346 0.000 5.845 5.522 0.000
- 1. 247 5.007 0.000 4.923 0.000 5.615 5.389 0.000
- 1. 057 8.703 0.000 8.602 0.000 4.101 2:459 0.000 17. 969 0.000 5.592 5.338 5.438 5.648 5.014 0.000 0.000 5.263 5.057 5.174 5.554 4.976 0.000 0.000 6.242 5.552 5.110 1.699 0.763 0.000 0.000 0.000 0.000 0.000 3.859 2.253 0.831 0.000 0.000 0.000 0.000 3.594 2.072 0.727 0.000 0.000 0.000 0.000 7.371 8.747 14.345 5.863 5.543 0.000 4.751 0.000 5.789 5.317 0.000 4.668 0.000
- 1. 274 4.258 0.000 1.788 0.000
- 4. 778 0.000 0.000 1.982 0.000 4;ff27~o-.-o-o-o-o-:-*n-o-O" i. 817 0.000
-1. 021 0.000 0.000 9.079 0.000 0.000 1.488 0.000
.53 0.000 1.299 0.000 PDQ 0.000 14.516 0.000
% DEV CYCLE 11 RHODIUM REACTION RATES (E+15) AT 13.0 GWD/MTU 5.447 0.000 0.000 0.000 0.000 6.286 0.000 2. 652 5.053 0.000 0.000 0.000 0.000 5.938 0.000
- 2. 544 7.791 0.000 0.. 000 0.000 0.000 5:861 0.000 4.240 6.082 6.384 6.856 0.000 6.377 0.000 4.701 0.000 5.734 6.039 6.595 0.000 6.051 0.000 4.398 0.000 6.066. 5. 716 3.955 0.000 5.394 0.000 6.881 0.000 6.229 0.000 6.623 0.000 6.504 5.708 0.000
- 1. 497 5.862 0.000 6.313 0.000 6.185 5.366 0.000 1.295 6.254 0.000 4.904 0.000 5.152 6.371 0.,ODO,15. 579 0.000 6.712 6.963.6.488 6.147 4.817 0.000 0.000 6.417 6.727 6.202 5.866 4.522 0.000 0.000 4.605 3.514 4.609 4.785 6.532 0.000 0.000 0.000 0.000 0.000 4.405 2.657' 1. 054 0.000 0.000 0.000 0.000 4.063 2.441 0.959 0.000 0.000 0.000 0.000 8.408 8.839 9.949 6.681 6.393 0.000 4.866 0.000 6.388 6.076 0.000 4.594 0.000 4.586 5.210 0.000 5.913 0.000 4.855 0.000 0.000 2.481 0.000 4.636 0.000 0.000 2.300 0.000 4.714 0.000 0.000 7.848 0.000 0.000 1.962. 0.000 53 0.000 1.779 0.000 PDQ 0.000 10.285 0.000
% QEV