ML20195E074

Ack Support & Cooperation Received Re Special Study Based on 880309 Event Using Brookhaven Nuclear Plant Analyzer

ML20195E074
Person / Time
Site:	LaSalle
Issue date:	06/15/1988
From:	Jordan E NRC OFFICE FOR ANALYSIS & EVALUATION OF OPERATIONAL DATA (AEOD)
To:	Beckjord E NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
References
NUDOCS 8806230286
Download: ML20195E074 (2)

Text

) .

JUN 151988 i

MEMORANDUM FOR: Eric S. Beckjord, Director Office of Nuclear Regulatory Research FROM: Edward L. Jordan, Director Office for Analysis and Evaluation of Operational Data

SUBJECT:

RES SUPPORT OF AE00 SPECIAL STUDY USING BROOKHAVEN NUCLEAR PLANT ANALYZER AE00 has prepared a Special Study based on the March 9, 1988 event at LaSalle which includes parameter traces from the Brookhaven Nuclear Plant Analyzer.

You will be receiving a copy of that report under separate cover. During that event, both recircslation pumps-tripped and neutronic thermohydraulic oscillations developed which grew in magnitude until the plant tripped on high neutron flux. With the assistance of your staff (Messrs. Shotkin and Scott) ,

and funding we were able to use Brookhaven to run the BWR Nuclear Plant Analyzer which gave us insights into the expected reactivity oscillations during this type of event and the effects of other plant actions such as restart of the recirculation pumps and closure of the MSIVs.

We appreciate the support and cooperation we received in this effort from RES and Brookhaven.

erigised seemed by Edward L. Jordan, Director Office for Analysis and Evaluation of Operational Data.

Distribution:

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' " AEOD' R/F ROAB R/F JRosenthal MWilliams KBlack CHeltemes EJordan MTaylor* EDO 8806230286 880615 PDR OSP 8 ADOCK 05000373 WLanning PDR

• See previous copy for concurrence.

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DATE$6/13/88 $ 6/13/88 $ 6/13/88 $ 6// 8 $ $ $

OFFICIAL REC RD COPY

,_ . _ . ~ . . ._ _ . . _ _

I .

MEM0 RAND 0MFOR: Eric S. Beckjord, Director Office of Nuclear Regulation Research

(

FROM: \ Edward L. Jordan, Director

\ Office for Analysis and Evaluation N of Operational Data

SUBJECT:

\RESSUPPORTOFAE0DSPECIALSTUDYUSINGBR00XHAVEN NUCLEAR PLANT ANALYZER AE00 has prepared a Special Study based on the March 9,1988 event at LaSalle which includesxparameter traces from the Brookhaven Nuclear Plant Analyzer. You will be receiving a copy of that report under separate cover.

During that event, both r'ecirculation pumps tripped and neutronic thermo-hydraulic oscillations developed which grew in magnitude until the plant tripped on high neutron flux'.N With the assistance of your staff (Messrs.

Shotkin and Scott) and funding \we were able to use Brookhaven to run the BWR Nuclear Plant Analyzer which gaye us insights into the expected reactivity oscillations during this type of byent and thi effects of other plant actions such as restart of the recirculation pumps and closure of the MSIVs.

\

We appreciate the support and coopera' tion we received in this effort from RES and Brookhaven. 'N s

N

'\E'dward L. Jordan, Director Office for Analysis and Evaluation of 30perational Data

\

s '

Distribution: \

PDR \

AEOD R/F 'N ROAB R/F \

JRosenthal \

MWilliams \N KBlack CPeltemes N Edordan \

MTaylor, E00 \

OSP \

WLanning \

l ROAB?

JRosenthal:ks OD -

T vak E00 Dq CF h: emes D:AE0D EJordan 6/l3/88 6/ 8 6/( '88 6/ /88

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