NG-98-1875, Monthly Operating Rept for Oct 1998 for Daec.With

Monthly Operating Rept for Oct 1998 for Daec.With

ML20195D362
Person / Time
Site:	Duane Arnold
Issue date:	10/31/1998
From:	Vanmiddlesworth, Woodward R IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	Caldwell J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
GL-97-02, GL-97-2, NG-98-1875, NUDOCS 9811180014
Download: ML20195D362 (7)

Text

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IES Utilities ElEEACo Palo. IA 52324 9785

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November 13,1998 office: 319.851.7611 j Fax: 319.851.7986 ,

www.alliant energy.com NG 98-1875 Mr. James L. Caldwell Regional Administrator (acting)  ;

Region III  :

U.S. Nuclear Regulatory Commission 801 Warrenville Road i Lisle,IL 60532-4351 Subjecti ~ Duane Arnold Energy Center Docket No: 50-331 Operating License: DPR-49 October 1998 Monthly Operating Report File: A-118d

Dear Mr. Caldwell:

Please find enclosed the Duane Arnold Energy Center Monthly Operating Report for October 1998. 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.

Very truly yours, l Gary VanMiddlesworth Plant Manager-Nuclear l GDV/RBW j Enclosures

>/ h 9811100014 981031 m PDR ADOCK 05000331 R PDR

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l Mr. James L. Caldwell NG 98-1875 November 13,1998 .

Page 2 of 2 i

cc:

IJ.S. Nuclear Regulatory Commission Ms. Lisa Stump

/ ttn: Document Control Desk lowa State Utilities Board Mail Station 0-PI-17 Lucas State Office Building Washington, DC 20555-0001 (Orig.) Des Moines,IA 50319 Ms.' Barbara Lewis Dr. William 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. N W Atlanta, GA 30339-5957 ' Washington, DC 20036-5859 Mr. Rich Laufer DOCU Project Manager 1 White Flint North NRC Resident Inspector T Mail Stop 13E21 '

11555 Rockville Pike CTS Project j Rockville, MD 20852  !

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OPERATING DATA REPORT DOCKET NO: 50-0331 DATE: 11/13/98 Unit: Duane Arnold Energy Center COMPLETED BY: Richard Woodward TELEPHONE: (3191 851-7318 OPERATING STATUS

1. Unit Name: Duane Arnold Enercy Center Average Daily Power Level

2. Reporting Period: October 1998 500 400 i

3. Licensed Thermal Power (MWth): 1658 { ,gg

4. Nameplate Rating (Gross MWe DER): 565.7 (Turbine) h200 100

5. Design Electrical Rating (Net MW, DER): fj3.8 0

6. Maximum Dependable Capacity (Gross MWe MDC):50 1 6 11 16 21 26 31 Day

7. Maximum Dependable Capacity (Net MW eMDC): j_2_0 2

8. If Changes Occur in Capacity Ratings (Items Number 3 through 7) since the last report, Give Reasons: Not Applicable

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

10. Reasons for Restrictions, If Any: N,,/A October-98 1998 Cumulative i 1. Hours in Reporting Period 745.0 7,296.0 208,176.0

12. Number of Hours Reactor Was Critical 745.0 6,216.8 160,983.3

13. Reactor Reserve Shutdown Hours 0.0 0.0 192.8

14. Hours Generator On-Line 745.0 6,131.2 157,280.3

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1,232,089.5 9,962,259.9 224,668,302.1

17. Gross Electrical Energy Generated (MWH) 415,780.0 3,330,395.0 75,323,081.6

18. Net Electrical Energy Generated (MWH) 392,932.2 3,142,892.9 70,713,981.1

19. Unit Service Factor 100.0 % 84.0 % 75.6 %

20. Unit Availability Factor 100.0 % 84.0 % 75.6 %

21. Unit Capacity Factor (Using MDC Net) 101.4 % 82.8 % 71.4 %

22. Unit Capacity Factor (Using DER Net) 98.0 % 80.1 % 68.4 %

23. Unit Forced Outage Rate 0.0% 0.0% 9.5%

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

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

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO: 50-0331 DATE: 11/13/98 Unit: Duane Arnold Energy Center COMPLETED BY: Richard Woodward TELEPliONE: (3191 851-7318 MONTH October 1998 Day Average Daily Power Level (MWe-Net) 1 530.8 2 530.1 3 528.8 4 526.4 5 521.9 6 527.5 7 528.8 8 530.4 9 521.6 10 534.7 11 492.4 12 528.0 13 531.5 14 531.7 15 525.5 16 522.I 17 520.5 18 531.5 19 528.8 20 532.9 21 534.7 22 531.9 23 53C0 24 531.7 25 528.7 26 527.2 27 523.6 28 527.0 29 525.4 30 528.9 31 532.4l

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i , ( 1 REFUELING INFORMATION DOCKET NO: 50-0331 DATE: 11/13/98 Unit: Duane Arnold Enercy Center COMPLETED BY: Richard Woodward TELEPHONE: (319) 851-7318

1. Name of facility. Duane Arnold Enercy Center

2. Scheduled date for next refueling shutdown. October 8.1999 t- Scheduled date for restart following refueling. November 13.1999

4. Will refueling or resumption of operation thereafter require a technical specification change or other license amendment? Yes - Technical Specification chance to suonort next fuel reload with GE12 fuel desien.

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

January 31.1999 I 1 1

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 assemblies inventory:

Number of Projected date of last Fuel refueling that can be discharged Assemblies (after allowing margin for maintenance of continuous full-core discharge capability) Installed ;n reactor core 368 N/A Previously discharged from core to Spent Fuel Storage Pool I 1648 N/A Installed Capacity of Spent Fuel Storage Pool 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) i

1 DOCKET NO: 30-0331 DATE: 11/13/98 Unit: Duane Arnold Energy Center COMPLETED BY: Richard Woodward TELEPHONF- (319)851-7318 UNIT SliUTDOWNS AND POWER REDUCTIONS REPORT MONTH: October 1998 (There were no average daily power reductions > 20% during the month.) No. Date Type Duration Reason Method of Licensee Cause (i) (Hours) (2) Shutting Event Down Reactor Report # (3) 1 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)

lq , , , , DOCKET NO.: 50-0331

DATE

11/13/98

[ Unit: Duane Amold Enercy Center l COMPLETED BY: Richard Woodward l TELEPHONE: D3.19) 851-7318 [ Monthly Operational Overview for October 1998 l l i At the end of October, the DAEC had operated five years and over 6,000,000 man-hours since the last employee lost-time j accident. Also at the end of October, the DAEC had also operated 163 days since the Cycle 16 start-up, its seventh longest j continuous operating run, Cycle 16 Capacity Factor has been 94.9%.

During the month of October, the DAEC operated at its 1658 MW. licensed limit except for the following departures from full power

Allocation of Production & Losses: Electrical Capacity Factor Full Power Output MWe  % of 565.7 MWe Hours . (Design Rating) equivalent (FPHeal Plant Process Computer maintenance : 10/19 11:00 - 18:00, 0.03 0.01% 0.04 10/25 00:00 - 02:00 Turbine Valve and Main Steam Isohtion ValveTesting: 10/10 1.24 0.22 % 1.63 23:00 - 10/11 10:00 Reduced recirculation flow to pull control rods to increase load 0.02 0.00 % 0.03 line (Rod Pull): 10/13 01:00- 02:00 Average Margin to 1658 MWth Limit 0.22 0.04 % 0.29 Subtotal: Capacity Losses 1.51 0.27 % 1.99

           'B' Moisture Separator Reheater Performance Loss                               1.20           0.21%                1.58 Feedwater flow measurement nozzle fouling                                     2.55            0.45 %              3.35                   j Other Losses, as yet unidentified                                              0.89           0.16 %               1.17 Subtotal: Efficiency Losses               4.64           0.82 %               6.11
                 - Weather Losses (turbine exhaust pressure / condenser inlet             1.41           0.30 %               1.90 temperature > design) l                                                      Total Losses l            7.g     l      1.39 %

l 10.00 l Net Electric Output $27.47 93.21 % 694.60 Plant Electric Loads (while on-line) 30.67 5.40% 40.40 Total Electrie Generation 558.14 98.61 % 735.00 l Design Electric Rating, Total %, Total # of clock-hours l 565.70 l 100.00 % l 745.00 l There were no Licensee Event Reports. l.icensine Action Summary: l Plant Availability: 100 % Unplanned Auto Scrams (while/ critical) this month: 0 l Number of reportable events: 0 Unplanned Auto Scrams (while/ critical)last 12 months: 0 Main Steam Safety and Relief Valve Challenges: 0 i}}