ML20138J242

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Summary of 970124 Meeting W/Caldon,Inc & Listed Attendees to Provide Opportunity for Caldon to Brief & Discuss Issues Wrt Effects of Imporvements in Flow & Temp Measurements to Reactor Licensee Thermal Power Uprate Program
ML20138J242
Person / Time
Issue date: 01/28/1997
From: Wang E
NRC (Affiliation Not Assigned)
To: Matthews D
NRC (Affiliation Not Assigned)
References
NUDOCS 9702060077
Download: ML20138J242 (38)
v • d • e


Text

.

January 28, 1997 MEMORANDUM TO: David B. Matthews, Chief Generic Issues and Environmental Projects Branch Division of Reactor Program Management Office of Nuclear Reactor Regulation FROM:

Egu Y. Wang, Reactor System Engineer Original Signed By:

Generic Issues and Environmental Pr0jects Branch Division of Reactor Program Management Office of Nuclear Reactor Regulation

SUBJECT:

MEETING

SUMMARY

OF JANUARY 24, 1997, REGARDING CALDON'S THERMAL POWER UPRATE PROGRAM On January 24, 1997, representatives of Caldon Inc. met with representatives of the Nuclear Regulatory Commission (NRC).

Participants also included representatives from Corey-Regan, Inc., Winston & Strawn, Texas Utilities Electric, Niagara Mohawk Power Corp., Arizona Public Service Co., Northern States Power Co., Southern Nuclear Operating Co., and Tennessee Valley Authority. The purpose of this meeting was to provide an opportunity for Caldon representatives to brief and discuss issues with regard to the effects of improvements in flow and temperature measurements to a reactor licensee's thermal power uprate program.

Mr. Cal Hastings, President & CEO, Caldon-Inc. provided an introduction on both the company and measurement improvement program and schedule information.

Mr. Hastings stated that a topical report would be submitted within a month.

Mr. Herb Estrada, Chief Engineer, Caldon Inc., discussed some keypoints and technical issues about this program. He also stated that six licensees had expressed interest in implementing the improvements as part of their thermal power uprate programs.

Two actions were identified this meeting.

First, NRC is to have an internal meeting to discuss potential legal, policy, or technical issues raised by this program. Second, another meeting between Caldon and NRC will be scheduled, if necessary, to address any outstanding' issues based on internal NRC discussion. provides a list of meeting attendees. Attachment 2 is the presentation material.

Attachments: As stated cc w/att:

See next page DISTRIBUTION:

See attached page Document name: 970124MT. SUM

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NRC/SIENENS POWER CORPORATION NEETING ON CONTROL R00 INSERTION ISSUES LIST OF ATTENDEES January 24, 1997 N8ME ORGANIZATION Hastings, Cal Caldon Estrada, Herb Caldon i

Hauser, Ernie Caldon Cowan, Barton Eckert Seamans Cherin & Mellott Wiesemann, R. A.

Eckert Seamans Cherin & Mellott Philips, Malicom Winston & Strawn Horin, Bill Winston & Strawn Berte, F. J.

Tetra Engineering Group Regan, Jennifer Corey-Regan/Caldon Edison, Mike Southern Nuclear Operating Co.

Krainik, Angela Arizona Public Service Co.

Walker, Roger Texas Utilities Electric Contard, Chris Niagara Mohawk Power Corp.

Drake, R. V.

Tennessee Valley Authority Verbout, Thomas Northern States Power Co.

Thadani, Ashok NRC/NRR Malsch, Martin NRC/0GC 4

Boger, Bruce NRC/NRR/DRCH Mauck, Jerry NRC/NRR/DRCH/HICB Doutt, Cliff NRC/NRR/DRCH/HICB Golub, Geoffrey NRC/NRR/DSSA/SRXB Balukjian, Harry NRC/NRR/DSSA/SRXB Matthews, David NRC/NRR/DRPM/PGEB Wang, Egan NRC/NRR/DRPM/PGEB L

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BAL-3898.02

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BAL-3898.18

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noz.?le LEFM Probability Odds of exceeding deviations bounds bounds within bounds bounds on high side 1.0 0.7%

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BAL-3398.19

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1 Overview 1

Overpower Probability LEFMZwith 1% uprate i

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BAL-3898.21

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verify accuracy on-line l

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3.a of thermal power Analyzed powerlevel measurements 1.02 i

Reduce probability U atelicensed i

of overpower i.oi power iev operation i

Currentlicensed Increase licensed 1.00 powerievei power level with j

improved margin Using current Proposed uprate instrumentation using LEFM i

BAL-3898.22

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Improve plant safety Licensees are interested in:

- uprate

-improvement in calorimetric design basis l

- on-line verification Narrowly focused scope I

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c-Topical Report Outline 1.

Purpose and scope

2. Background, calorimetric determination of thermal power
3. Measurement of feedwater flow and temperature with a chordal LEFM
4. Current calorimetric power determinations
5. Basis for the thermal power uprate with the LEFM
6. On-line verification of LEFM accuracy 7.

LEFM reliability 8.

Conditions for use of LEFM uprate 9.

References s&unu b

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10. Appendices i

A. Basis for uncertainties in existing calorimetric instrumentation j

B. Principles of chordal LEFM flow and temperature measurements i

C. Verification of LEFM temperature correlation D. Identifying and bounding the uncertainties in LEFM flow and i

temperature measurements E.

Basis for uncertainties in determining thermal power with the LEFM l

F.

Survey of LEFM hydraulic performance l

G. Estimates of the probability of exceeding power margins of up to 5 l

standard deviations l

l H. Caldon flow measurement applications 1

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(

BAL-3398.25 i

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Request for Review and Approval I

  • Increased LEFM Z accuracy and increased safety margin

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  • Use as technical basis by licensees for uprates up to 1%

Under 10CFR50.46('aX1Xi) i e

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l DISTRIBUTION: Mtg. Sunnary of January 24, Meeting with Caldon Inc.

l Dated January 28. 1997 HARD COPY

Central File Public PGEB r/f R. Cooper, RI E. Merschoff, RII W. Alexion, RIII J. Dyer, RIV E. Wang OGC ACRS E-MAIL F. Miraglia A. Thadani R. Zinnerman T. Martin E. Jordan B. Boger D. Matthews F. Akstulewicz J. Weimiel M. Malsch C. Doutt J. Mauck H. Balukjian G. Golub 7 7-M NRC HLE CENTER CO CGG013

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