NG-99-0530, Monthly Operating Rept for Mar 1999 for Daec.With

Monthly Operating Rept for Mar 1999 for Daec.With

ML20205R336
Person / Time
Site:	Duane Arnold
Issue date:	03/31/1999
From:	Vanmiddlesworth, Woodward R IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	Dyer J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
GL-97-02, GL-97-2, NG-99-0530, NG-99-530, NUDOCS 9904220294
Download: ML20205R336 (7)

Text

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t ALLI ANT UTlLITIES it.s vuhun inc. l

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IES Utilities SIE;", iia ["ENI"i l No IA Sm4WH5 April 12,1999 omc,:3an5uou 1

Fax: 31!tH513986 j www.alhant energy.com 1 l

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Mr. James E. Dyer I Regional Administrator Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle,IL 60532-4351 i l

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Subject:

Duane Arnold Energy Center l Docket No: 50-331 Operating License: DPR-49 March 1999 Monthly Operating Report File: A-118d

Dear Mr. Dyer:

Please find enclosed the Duane Arnold Energy Center Monthly Operating Report for March 1999.

The report has been prepared in accordance with the guidelines of NRC Generic Letter 97-02:

Revised Contents Of The Monthly Operating Report, and distribution has been made in accordance with DAEC Technical Specifications, Section 5.6.4.

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Very truly yours, .i 1

Gary anMiddlesworth Plant Manager-Nuclear GDV/RBW Enclosures 9904220294 990331 PDR ADOCK 05000331 R PDR ,

d Mr.' James E. Dyer NG 99-0530 1 April 12,1999 Page 2 of 2 l cc:

/U.S. Nuclear Regulatory Commission Ms. Lisa Stump Attn: Document Control Desk lowa State Utilities Board i Mai! Station 0-PI-17 Lucas State Office Building WashingLu, DC 20555-0001 (Orig.) Des Moines, IA 50319 Ms. Barbara Lewis Dr. Willinn A. Jacobs, Jr.

McGraw-Hill, Inc. GDS Associates,Inc.

1200 G Street NW, Suite 1100 1850 Parkway Place, Suite 720 Washington, DC 20005 Marietta, GA 30068-8237 Mr. Dennis Murdock Mr. Dale Arends Centrallowa Power Cooperative Corn Belt Power Cooperative Box 2517 130013th Street North Cedar Rapids, IA 52406 Humboldt, IA 50548 '

Document Control Desk Mr. Al Gutterman INPO Records Center Morgan, Lewis, Bockius 700 Galleria Parkway 1800 M St. NW Atlanta, GA 30339-5957 Washington, DC 20036-5859 Ms. Brenda Mozafari DOCU Project Manager 1 White Flint North NRC Resident Inspector Mail Stop 13D18 11555 Rockville Pike CTS Project Rockville, MD 20852 l

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OPERATING DATA REPORT DOCKET NO: 50-0331 DATE: 04/12/99 Unit- Duane Arnold Enercy Center COMPLETED 13Y: Richard Woodward TELEPliONE: (3191 851-7318 OPERATING STATUS

1. Unit Name: Duane Arnold Enercy Center

2. Reporting Period: March 1999 I Average Daily Power Level 1

3. Licensed Thermal Power (MWth): 1658 4 Nameplate Rating (Gross MWe DER): 565.7 (Turbine) _

5. Design Electrical Rating (Net MWe DER): 133 8 2;

300-

6. Maximum Dependable Capacity (Gross MWe MDC): 110 200

7. Maximum Dependable Capacity (Net MWeMDC): 12 0 100-0 i

8. If Changes Occur in Capacity Ratings (Items Number 3 through 7) since the last report, Give Reasons:N_o; 01 08 15 22 29 Annlicable Day

9. Power Level to Which Restricted, if Any (Net MW ):e N_3

10. Reasons for Restrictions, if Any: NfM March-99 1999 Cumulative

11. Hours in Reporting Period 744,0 2,160.0 211,800.0

12. Number of Hours Reactor Was Critical 744.0 2,160.0 164,508.8

13. Reactor Reserve Shutdown Hours 0.0 0.0 192.8

14. Hours Generator On-Line 744.0 2,160.0 160,788.2 l

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1,220,457.9 3,543,138.9 230,390,928.2

17. Gross Electrical Energy Generated (MWH) 414,830.0 1,203,342.0 77,263,668.6

18. Net Electrical Energy Generated (MWH) 391,708.5 1,136,571.5 72,546,817.0

19. Unit Service Factor 100.0 % 100.0 % 75.9 %

20. Unit Availability Factor 100.0 % 100.0 % 75.9 %

21. Unit Capacity Factor (Using MDC Net) 101.2 % 101.2 % 72.0 %

22. Unit Capacity Factor (Using DER Net) 97.9 % 97.8 % 69.0 %

23. Unit Forced Outage Rate 0.0% 0.0% 9.3%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of each): N/A l

25. If Shutdown at End of Report Period, Estimated Date of Startup: N/A l

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AVERAGE DAILY UNIT POWER LEVEL

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DOCKET NO: 50-0331 DATE: 04/12/99 -

Unit: Duane Arnold Enerav Center .

COMPLETED BY: Richard Woodward TELEPHONE: (319) 851-7318 -

i MONTH March 1999 Day Average Daily Power Level (MWe-Net) 1 532.9 2 532.3 3 534.8 4 534.3 5 533.6 6 535.3 7 532.9 8 533.0 9 533.8 10 5335 11 535.0 12 534.2 13 532.l' 14 394.6 15 530.2 16 530.2 17 527.9 18 532.6 l 19 532.9 20 531.4 21 532.9 22 534.7 23 531.8 j 24 532.9 25 533.4 26 531.6 27 533.4 28 532.2 29 525.1 30 528.6 31 486.7

4 REFUELING INFORMATION DOCKET NO: 50-0331 DATE: 04/12/99 Unit: Duane Arnold Enercy Center COMPLETED BY: Richard Woodward TELEPHONE: (319) 851-7318

1. Name of facility. Duane Arnold Enerev Center

2. Scheduled date for next refueling shutdown. October 8.1999

3. Scheduled date for restart following r+eling. November 13.1999

4. Will refueling or resumption of opm t + . thereafter require a technical specification change or other license amendment? Y.es > Sc:,. 3pecincatio_qshangsjp. support next fuel reload with GE12 fuel desinn.

5. Scheduled date(s) for submitting proposed licensing action and supporting information.

Technical Soeci6 cation chance for GE12 fuel storace submitted January 22.1999.

Technical Soecification chance for GE12 fuel operation will be submitted oromotly followine receiot of suonortine information from fuel vendor.

6. Important licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures. See items 4 & 5 above )

7. Current and projected fuel assemblics inventory:

Number of Projected date oflast Fuel refueling that can be discharged Assemblies (after allowing margin for maintenance of continuous full-core l

i discharge capability)

Installed in reactor core l 368 N/A Previously discharged from core to Spent Fuel Storage Pool i 1648 N/A Installed Capacity of Spent Fuel Storage Pool l 2411 2001 Licensed Capacity of Spent Fuel Storage Pool (with reracking)  ! 2829 2006 Licensed Capacity of Spent Fuel Storage Pool and Cask Pool (with 3152 2010 reracking)

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DOCKO'9: 50 0331

.'ATF. 04/17/99

, . Urat: Duane Amold Energy Cgntgr COMPLETED BY: Richard Woodward TELEPHONE: (319) 851-7318 UNIT SHUTDOWNS AND POWER REDUCTIONS ,

REPORT MONm: March 1999 )

No. Date Type Duration Reason Method of Licensee Cause (1) (Hours) (2) Shutting Event Down Reactor Report #

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(3)  !

3 03/13/99 S 0 5 N/A Turbine Control Valve e

(5.89 Fu!! urveillance Testing j Power Hours equivalent) 1 - F: Forced 2 - Reason 3 - Method:

S: Scheduled A-Equipment Failure (Explain) 1 Manual B-Maintenance or Test 2-Manual Scram C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Continued E-Operator Training & License Examination 5-Reduced Load F Administrative 9-Other (Explain)

G-Operational Error (Explain)

H-Other (Explain)

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• i i .

DOCKET NO.: 50-0331 DATE: 04/12/99 Unit: Duane Amold Enerev Center COMPLETED BY: Richard Woodward TELEPHONE: (3191 851-7318 Monthly Operational Overview for March 1999 At the beginning of March the DAEC had continuously operated 73 days.

On March 13*, the DAEC reduced power at 23:00 for turbine valve testing.

On March 31" at 0938 hours0.0109 days <br />0.261 hours <br />0.00155 weeks <br />3.56909e-4 months <br /> a plant shutdown was commenced due to a main generator field ground alarm coming in that would not immediately clear. The plant shutdown was halted at 1115 hours0.0129 days <br />0.31 hours <br />0.00184 weeks <br />4.242575e-4 months <br /> when the main generator field ground alarm did clear. Reactor power at this time was 70%. After a review of the situation by plant management, a reactor power increase to full power was commenced at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br />.

Allocation of froduction & Losses: Electrical Capacity Factor Full Power Output  % of 565.7 MWe Equivalent MWe (Design Rating) Hours (FPHeq)

Turbine Valve Testing: 03/13 23:00 03/15 07:00 4.47 0.79 % 5.89 Gen Field Ground Alarm: 03/3109:00 21:00 1.22 0.22 % 1.60 Reduced recirculation flow to pull control rods to increase load line (Rod Pull): 03/1518:00 18:45,03/16 21:00 21:45 0.03 0.01 % 0.04 HPCI Run 03/24 22:30 03/25 03:00 0.02 0.00 % 0.03 Average Margin to 1658 MWth Limit 026 0 05 % 0.34 Subtotal: On-ilme Capacity Lasses 6.01 1.06 % 7.90 l I i t

'B' Moisture Separator Reheater Performance Loss 1.20 0.21% 1.58 Feedwater flow measurement nonic fouling 2.55 0.45 % 3.35

,Other Losses, as yet unidentiGed 2.59 0.46 % 3 41 L Subtotal: On-line Emeiency Losses 6.34 1.12 % 8J3 I I t I begative (-) Weather Losses (Lt., weather gains, turbine exhaust pressure / condenser inlet temperature < desiga) . 4.18 0.74 % . 5.50 I i i TotalOn-line14sses l 8.16 l 1.44 % l 10.73 l 1

1 Avg. Net Electric Output (while on-line) 526.44 93.06 % 692.37 Plant Electric Loads (while on-line) 3110 5.50 % 40 90 Total Eleetric Gestration 557.54 98.56 % 733.27 Off-tjne Unplanned lasses: 0.00 l l

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i i lDesige Electric Rating,l etal %, Total # of clock-hours l 565.70 l 100.00 % l 744.00_ l (There were no Licensee Event Reports.)

{ icensinn Action Summary:

Plant Availability: 100 % Unplanned Auto Scrams (while/ critical)this month: 0 Number of reportable events: 0 Unplanned Auto Scrams (white / critical)last 12 months: 0 Main Steam Safety and Relief Valve Challenges: 0