ML18043A723
| ML18043A723 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 06/06/1979 |
| From: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7906110140 | |
| Download: ML18043A723 (2) | |
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consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201
- Area Code 517 788-0550 June 6, 1979 Director, Nuclear* Reactor Regulation Att Mr Dennis L Ziemann, Chief Operating Reactors Branch No 2 US Nuclear Regulatory.Commission Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -
CYCLE 4 START~UP PHYSICS TEST On May 23, 1979 Consumers Power Company representatives talked with the NRC staff about specific aspects of the Palisades Plant Cycle 4 operation.
_l\\.l-though not required by regulations or the Plant Technical Specifications, Consumers Power,agreed to submit an outline.of the planned Cycle 4 start-up physics tests.
Attached is the proposed Cycle 4 Start-Up Test Progra.~ for Palisades.
The tests.are the same as were performed last cycle with the following exceptions:
- 1.
The net rod wo~th (N-1) measurement will-not be dcne.
Industry practice has been to do this test only once for a particular reactor, so repeti-tion of this test in the future is not contemplated..
- 2.
The dropped rod worth test will not be performed.
The overriding ccncern in the rod drop accident anaiysis is the core power distribution, which is not directly associated with rod worth, so that this test provides no usefUl information that.is not already covered by other tests.
- 3.
The central control rod calibration has been added and the moderator and power coefficient tests will be performed by trading with this rod, assuming*
that the special test exception technical specification change (to be.sub-mitted on June 7, 1979) is granted.
David P Hoffman Assistant Nuclear Licensing Administrator CC JGKeppler, USNRC
PALISADES CYCLE 4 START-UP TESTS I.
LOW POWER Measured Para.meter ARO HZP critical boron concentra-tion.
Regulation rod bank worths, no overlap.
Regulation rod bank worths in overlap sequence.
Central rod integral worth.
- calibration.
Symmetric rod worths.
Moderator temperature coefficient -
ARO. and r.egulati.ng banks in.
Reciprocal soluble boron worth.
Acceptance Criterion
+/- 10% of predicted value.
+/- 15% of predicted value or within
_ 0.15~ tip __ J?i:_edicted value, which-ever* is greater.
None.
None.
Each individual rod within +/- io%
of the* symmetric group average.
+/- 5 /x-1:()_.:.._5. tip/ ~F Jr~ID.--=-the predic::t_~9:.
value.
- Not larger than ;125 ppID./% tip.
II.
POWER ESCALATION -
(50% and 90%. of Rated Power)
Measured. Para.meter.
Moderator temperature coefficient *.
Power coefficient.
Power distribution.*
Acceptance Criterion
+/- 5*x 19~
5 _tip_/°F from the predicted value *
- Average for all tests within +/- 3 x
- io-5 tip/% power of the predicted aver.age *.
Technical Specifications are met.