ML20211N537

Summary of 990901 Meeting with Util in Rockville MD Re Plans for Advanced Core Monitoring Sys.List of Attendees & Licensee Agenda Encl

ML20211N537
Person / Time
Site:	Calvert Cliffs
Issue date:	09/08/1999
From:	Dromerick A NRC (Affiliation Not Assigned)
To:	NRC (Affiliation Not Assigned)
References
TAC-MA6077, TAC-MA6078, NUDOCS 9909130017
Download: ML20211N537 (12)

Text

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September 8, 1999 1

LICENSEE: Baltimore Gas and Electric Company k

FACILITY: Calvert Cliffs Nuclear Power Plant, Unit Nos.1 and 2

SUMMARY

OF THE SEPTEMBER 1,1999, MEETING REGARDING CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS.1 AND 2 (TAC NOS. MA6077 AND MA6078)

On September 1,1999, the Nuclear Regulatory Commission (NRC) staff held a meeting at the NRC offices in Rockville, Maryland with representatives from Baltimore Gas and Electric Company (BGE), the licensee for Calvert Cliffs Unit Nos.1 and 2 to discuss plans for an Advanced Core Monitoring System. Enclosure 1 is a list of attendees. Enclosure 2 is a copy of the licensee's agenda.

The licensee indicated that they intend to replace the current rhodium detector with platinum, non-depleting in-core instrumentation (ICl) detectors into the Calvert Cliffs Unit 2 reactor core during the spring 2001 refueling outage. The existing rhodium detectors work by neutron reaction and the rhodium is depleted over time. They, therefore have an expected life of 1 to 2 fuel cycles depending upon their location in the core. The new detectors with an inconel 690 alloy (1-990) sheaths are expected to last up to and beyond 5 cycles (greater than 10 years).

The licensee further indicated that ABB - Combustion Engineering (ABB - CE) will submit generic topical reports regarding this matter by January 2000 and BGE would submit an amendment request including a site-specific application by March 2000.

The NRC staff indicated that in order to meet the licensee's ambitious schedule it would be necessary for ABB - CE to submit very high quality reports which would include justification for replacement of the CECOR Code by the POLCA Code and justify the use of gamma detectors compared to previous use of neutron detectors. The staff advised the licensee to also submit a high quality site-specific application.

Original signed by:

9909130017 990908 Alexander W. Dromerick, Sr. Project Manager, Section 1 PDR ADOCK 05000317 Project Directorate i P

PDR Division of Licensing Project Management

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Docket Nos. 50-317 and 50-318

2. Licensee's Handout M fD/

Enclosures:

1. List of Attendees cc w/ encl: See next page DISTRIBUTION: See next page DOCUMENT NAME: G:\\PDl-1\\CC1-2\\Mts90199.wpd To receive a copy of this document, indicate in the box:

"C" - Copy without attachment / enclosure "E" - Copy with attachment / enclosure "N" - No copy OFFICE PDI-1/Fty),/A l

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DATE 09/ /99 7" d 09/V/99 09/@)/99 09/

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s Meeting Summary Distribution:

LICENSEE: Baltimore Gas and Electric Company FACILITY: Calvert Cliffs Nuclear Power Plant, Unit Nos.1 AND 2

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SUMMARY

OF THE SEPTEMBER 1,1999, MEETING REGARDING CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS.1 AND 2 (TAC NOS. MA6077 AND MA6078)

E-Mail (w/ encl.1)

Hard Coov (w/all encls.)

J. Zwolinski/S. Black Docket File E. Adensam (e-mail)

PUBLIC I

S. Bajwa PDI-1 R/F j

S. Little A. Dromerick j

A. Dromerick OGC T. Attard ACRS T. Ulses L.Kopp J. Stewart l

P. Loeser cc: Licensee & Service List R. Caruso l

M. Tschiltz M. Oprendek, RGN-l l

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September 8, 1999

.g LICENSEE: Baltimore Gas and Electric Company FACILITY: Calvert Cliffs Nuclear Power Plant, Unit Nos.1 and 2 U

SUMMARY

OF THE SEPTEMBER 1,1999, MEETING REGARDING CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS.1 AND 2 (TAC NOS. MA6077 AND MA6078)

On September 1,1999, the Nuclear Regulatory Commission (NRC) staff held a meeting at the NRC offices in Rockville, Maryland with representatives from Baltimore Gas and Electric Company (BGE), the licensee for Calvert Cliffs Unit Nos.1 and 2 to discuss plans for an Advanced Core Monitoring System. Enclosure 1 is a list of attendees. Enclosure 2 is a copy of the licensee's agenda.

The licensee indicated that they intend to replace the current rhodium detector with platinum, non-depleting in-core instrumentation (ICl) detectors ir.to the Calvert Cliffs Unit 2 reactor core during the spring 2001 refueling outage. The existing rhodium detectors work by neutron reaction and the rhodium is depleted over time. They, therefore have an expected life of 1 to 2

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fuel cycles depending upon their location in the core. The new detectors with an inconel 690 l

alloy (1-990) sheaths are expected to last up to and beyond 5 cycles (greater than 10 years).

The licensee further indicated that ABB - Combustion Engineering (ABB - CE) will submit generic topical reports regarding this matter by January 2000 and BGE would submit an amendment request including a site-specific application by March 2000.

The NRC staff indicated that in order to meet the licensee's ambitious schedule it would be necessary for ABB - CE to submit very high quality reports which would include justification for replacement of the CECOR Code by the POLCA Code and justify the use of gamma detectors compared to previous use of neutron detectors. The staff advised the licensee to also submit a high quality site-specific application.

Original signed by:

4 Alexander W. Dromerick, Sr. Project Manager, Section 1 Project Directorate i Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-317 and 50-318

Enclosures:

1. List of Attendees

2. Licensee's Handout cc w/ encl: See next page DISTRIBUTION: See next page DOCUMENT NAME: G:\\PDI-1\\CC1-2\\Mts90199.wpd To receive a copy of this document, indicate in the box:

"C" - Copy without attachment / enclosure "E" - Copy with attachment / enclosure "N" - No copy 0FFICE PDI-1/P 4 /A l

PDI-1/L@y l

PDI-1/SC,A l

l NAME ADromeMf//fe' SlittlN SBajwa AW DATE 09/ /99 Pd 09/Y/99 09/@) /99 09/

/99 OFFICIAL RECORD COPY

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4 UNITED STATIS e(.)*

E NUCLEAR REGULATORY COMMISSION U'

4I WASHINGTON, D.C. 205%00M September 8, 1999 LICENSEE: Baltimore Gas and Electric Company FACILITY: Calvert Cliffs Nuclear Power Plant, Unit Nos.1 and 2

SUMMARY

OF THE SEPTEMBER 1,1999, MEETING REGARDING CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS.1 AND 2 (TAC NOS. MA6077 AND MA6078)

On September 1,1999, the Nuclear Regulatory Commission (NRC) staff held a meeting at the NRC offices in Rockville, Maryland with representatives from Baltimore Gas and Electric Company (BGE), the licensee for Calvert Cliffs Unit Nos.1 and 2 to discuss plans for an Advanced Core Monitoring System. Enclosure 1 is a list of attendees. Enclosure 2 is a copy of the licensee's agenda.

The licensee indicated that they intend to replace the current rhodium detector with platinum, non-depleting in-core instrumentation (ICl) detectors into the Calvert Cliffs Unit 2 reactor core during the spring 2001 refueling outage. The existing rhodium detectors work by neutron reaction and the rhodium is depleted over time. They, therefore have an expected life of 1 to 2 fuel cycles depending upon their location in the core. The new detectors with an inconel 690 alloy (1-990) sheaths are expected to last up to and beyond 5 cycles (greater than 10 years).

The licensee further indicated that ABB - Combustion Engineering (ABB - CE) will submit generic topical reports regarding this matter by January 2000 and BGE would submit an amendment request including a site-specific application by March 2000.

The NRC staff indicated that in order to meet the licensee's ambitious schedule it would be necessary for ABB - CE to submit very high quality reports which would include justification for replacement of the CECOR Code by the POLCA Code and justify the use of gamma detectors compared to previous use of neutron detectors. The staff advised the licensee to also submit a high quality site-specific application.

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Alexander W. Dromerick, Sr. Project Manager, Section 1 Project Directorate i Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-317 and 50-318

Enclosures:

1. List of Attendees

2. Licensee's Handout cc w/ encl: See next page

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Calvert Cliffs Nuclear Power Plant E

Unit Nos.1 and 2 President Mr. Joseph H. Walter, Chief Engineer Calvert County Board of Public Service Commission of Commissioners Maryland 175 Main Street Engineering Division Prince Frederick, MD 20678 6 St. Paul Centre Baltimore, MD 21202-6806 James P. Bennett, Esquire Counsel Kristen A. Burger, Esquire Baltimore Gas and Electric Company Maryland People's Counsel P.O. Box 1475 6 St. Paul Centre Baltimore, MD 21203 Suite 2102 Baltimore, MD 21202-1631 Jay E. Silberg, Esquire Shaw, Pittman, Potts, and Trowbridge Patricia T. Birnie, Esquire 2300 N Street, NW Co-Director Washington, DC 20037 Maryland Safe Energy Coalition P.O. Box 33111 Mr. Bruce S. Montgomery, Director Baltimore, MD 21218 NRM Calvert Cliffs Nuclear Power Plant Mr. Loren F. Donat611 1650 Calvert Cliffs Parkway NRC Technical Training Center Lusby, MD 20657-4702 5700 Brainerd Road Chattanooga, TN 37411-4017 Resident inspector U.S. Nuclear Regulatory Mr. Charles H. Cruse Commission Vice President, Nuclear Energy P.O. Box 287 Baltimore Gas & Electric Company St. Leonard, MD 20685 Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Mr. Richard I. McLean, Manager Lusby, MD 20657 Nuclear Programs Power Plant Research Program Maryland Dept. of Natural Resources Tawes State Office Building, B3 Annapolis, MD 21401 Regional Administrator, Region i U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 1

n LIST OF ATTENDEES BALTIMORE GAS AND ELECTRIC COMPANY SEPTEMBER 1.1999 NAME ORGANIZATION

~ Alexander W. Dromerick NRC/NRR Tony Attard NRC/NRR :

Tony Ulses NRC/NRR Larry Kopp NRC/NRR Jim Stewart NRC/NRR

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Paul Loeser NRC/NRR Tony Penna BGE/Calvert Cliffs Donna Moeller BGE/Calvert Cliffs Ralph Caruso NRC/NRR S. Singh Bajwa NRC/NRR l

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f Calvert Cliffs Nuclear Power Plant Advanced Core Monitoring System Project Meeting with NRC i

September 1,1999

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h, EXECUTIVE

SUMMARY

' This project will install platinum, non-depleting In-Core Instmmentation (ICI) detectors -

into the reactor core. The existing rhodium detectors work by neutron reaction and the rhodium'is depleted over time. They, therefore, have an expected life of 1 to 2 fuel cycles depending upon their location in the core.

The platinum detectors work by gamma reaction ' and Do Not Deplete over time.

These new detectors with an Inconel 690 alloy (I-690) sheath are expected to last up to and beyond 5 fuel cycles; greater than 10 years.

i This pmject will develop, license and install a new core monitoring software.

The new software code will perform 3-D nodal power calculation, using advanced thermal-hydraulics methods and a 2-energy group nodal model.

The most important features in this system are the ability to construct the power distribution in each fuel assembly I

and to provide pin-wise calculated quantities. This capability will enable the system to perform on-line monitoring of the thermal lithits on Peak Linear Heat Rate and DNB.

New software was chosen because it is more cost effective than modifying the existing software and it better serves life extension plans.

The new software will be installed into the Simulator in 2000, into Unit-2 in 2001 and into Unit-1 in 2002.

This pmject will install Quickloc flanges.

Quickloc is an ABB patented In-Core Instmment flange closure system, which will significantly reduce critical path time and man-rem exposure associated with servicing the eight ICI flanges.

Manipulation of i

the individual ICI's is eliminated, thereby reducing the chance for physical damage i

over the useful life of the ICI.

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=,o PROJECT SCOPE c This project will:

install platinum non-depleting ICI's utilize a new alloy (I-690) for ICI sheathing e

e - ' utilize fewer ICI's, per CEOG Task change the Data Acquisition System (DAS) to enable the new ICI signal to be processed

. develop and license a new advanced core monitoring software replace CECOR with POLCA7 e

add computer hardwam to the Control Room and Simulator add Quickloc flanges to the Reactor Vessel Head

,L OBJECTIVES In addition to meeting the safety, schedule and budget goals, this pmject will:

execute a testing program to ensure specification compliance, quality and to build e

customer confidence

. minimize the impact to the Control Room Operators.(end user) install ICI's as a routine refueling outage task e

accommodate the RFO schedule and resource limits when installing Quickloc e

flanges

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l BENEFITS SOFI' WARE ASI Control strategy i

Better ECC Capability i

Better Shutdown Boron Concentration Free up CPU Time on the Plant Computer i

Allows ICI signals to be used for Plant Opentions Pmvides 3-D Core Calculations on-line f

I Pmvides Core Predictive Capabilities Suppons Use of Fat Pellets Suppons AxialBlankets Suppons Loss ofImad Provides Margin to Maintain 100% Power for a Full Cycle l

ICI's Physically identical to current design Reduced ICI Procurement Costs Reduced ICI Disposal Costs Reduced' Outage Time due to less frequent ICI Replacement Schedule Reduced Radiation Exposure due to less frequent ICI Replacement Schedule Neutronic Life of 10+ years QUICKLOC Reduced Radiation Exposure Eliminates Damage to ICI's by the Flange Suppons the Iong Range Business Plan of _< 160 Rem Total Dose l

Saves O&M -

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PROJECT SCHEDULE i-At the October,1998 Nuclear Leadership Team meeting, this project proposed an implementation date of 2002 and 2003. Since then, the team has worked to move the implementation date to 2001 and 2002.

The change in schedule improves the cost benefit analysis and minimizes outage resource conflicts between this project and the Steam Generator Replacement project.

MILESTONES / TIMELINE 3/99 Modify DAS 4/99 Install 2 test ICI's into U 2 9/99 Receive Topical Report from ABB 9/9') Receive Demo System from ABB 9/99 Complete ACM Engineering / Purchase Specification 10/99 Design Scope Document 11/99 Issue CNF's 11/99 OrderI-690 12/99 Submit Generic Topical Report to NRC 12/99 Submit Technical Specification changes 1/00 Decide Rhodium or Platinum 3/00 Submit Calvert Cliffs Specific Topical Report and License Request to NRC 4/00 Install test ICI's into U-l 6/00 Receive NRC Appmval

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8/00 Order 35 Platinum ICI's i

9/00 Install stand alone computer with ACM 12/00 Install ACM into Simulator 8/00 Order 35 Platinum ICI's for U-2 3/01 Tech Spec Changes - COLR, TRM changes associated with ACM 3/01 Install ACM software onto TSC 4/01 Install Quickloc into U-2 i

4/01 Install ICI's into U-2 8/01 Order 35 Platinum ICI's for U-l 4/02 Install ICI's into U-l l

5/02 Remove CECOR from Plant Computer

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.g Meeting Summary Distribution:

LICENSEE: Baltimore Gas and Electric Company FACILITY: Calvert Cliffs Nuclear Power Plant, Unit Nos.1 AND 2

SUMMARY

OF THE SEPTEMBER 1,1999, MEETING REGARDING CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS.1 AND 2 (TAC NOS. MA6077 AND MA6078)

E-Mail (w/ encl.1)

Hard Coov (w/all encts.)

~

-A MfiW 3 yfE_

E. Adensam (e-mail)

PUBLIC S. Bajwa PDI-1 R/F S. Little A. Dromerick A. Dromerick OGC T. Attard ACRS T. Ulses L.Kopp

' J. Stewart P. Loeser cc: Licensee & Service List R. Caruso M. Tschiltz M. Oprendek, RGN-l l

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