NG-96-1481, Monthly Operating Rept for June 1996 for Duane Arnold Energy Ctr

Monthly Operating Rept for June 1996 for Duane Arnold Energy Ctr

ML20115H040
Person / Time
Site:	Duane Arnold
Issue date:	06/30/1996
From:	Van Middleswort, Woodward R IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	Miller H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NG-96-1481, NUDOCS 9607220193
Download: ML20115H040 (7)

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UTILITIES July 12,1996 NG-96-1481 Mr. Huben J. Miller Regional Administrator Region III U.S. Nuclear Regulatory Commission 801 Warrem'ille Road Lisle, IL 60532-4351

Subject:

Duane Arnold Energy Center Docket No: 50-331 '

Operating License: DPR-49 June 1996 Monthly Operating Repon File: A-118d

Dear Mr. Miller:

l Please find enclosed the Duane Arnold Energy Center Monthly Operating Report for June 1996. The repon has been prepared in accordance with the guidelines of NUREG-0020 and distribution has been made in accordance with DAEC Technical Specifications, Section , 6.11.1.c.

l r

Very truly yours, M

Gary Van Middlesworth Plant Manager-Nuclear GDV/RBW i

Enclosures g72gg %8 i R

An IES Industnes C:mpany

', ,' OPERATING DATA REPORT DOCKET NO: 50-0331 DATE: 07/12/96 Unit: Duane Arnold Enerty Center COMPLETED BY: Richard Woodward TELEPHONE: (319) 851-7318 OPERATING STATUS l

Average Daily Power Level

1. Unit Name: Duane Arnold Energy Center _ . . _ . _ _ _ , _ _ _ 3 500 j

2. Reporting Period: June 1996 ,gg j t

3. Licensed Thermal Power (Mwth): MiB Y 300 iE 2 200

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

5. Design Electrical Rating (Net MWe DER): 118 ,

1 6 11 16 21 26

6. Maximum Dependable Capacity (Gross MW e MDC): 510 Day

7. Maximum Dependable Capacity (Net MW e MDC): 520

8. If Changes Occur in Capacity Ratings (Items Number 3 through 7) since the last report, Give Reasons: Nat Anolicable

9. Power Level to Which Restricted, If Any (Net Mw e ): Nat Apolicab]g *

10. Reasons for Restrictions If Any: Hot Anolicable l

June-96 1996 Cummulative i 1. Hours in Reporting Period 720.0 4,367.0 187,703.0

12. Number of Hours Reactor Was Critical 720.0 4,367.0 142,892.8

13. Reactor Reserve Shutdown Hours 0.0 0.0 192.8 l

14. Hours Generator On-Line 720.0 4,367.0 139,480.8

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0  ;

16. Gross Thermal Energy Generated (MWH) 1,186,363.1 6,802,614.6 196,063,829.0

17. Gross Electrical Energy Generated (MWH) 395,628.0 2,302,746.0 65,714,716.6

18. Net Electrical Energy Generated (MWH) 373,492.5 2,171,545.3 61,648,559.9

19. Unit Service Factor 100.0 % 100.0 % 74.3 %

20. Unit Availability Factor 100.0 % 100.0 % 74.3 %

21. Unit Capacity Factor (Using MDC Net) 99.8% 95.6 % 69.3 %

22. Unit Capacity Factor (Using DER Net) 96.4 % 92.4 % 66.3 %

23. Umt Forced Outage Rate 0.0% 0.0% 10.5 %

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of each): Refueling. 10/11/96.30 DAYS

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

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO: 50-0331

. DATE: 07/12/96 Unit: Duane Arnold Energy Center COMPLETED BY: Richard Woodward TELEPilONE: (319) 851-7318 MONTH June 1996 Day Average Daily ,

Powerlevel  !

(MWe-Net) 1 525.1 2 524.8 j 3 526.6 j 4 529.2 5 526.6 6 525.0 7 529.1 8 525.4 9 435.4 10 521.3 11 524.2 12 523.2 13 516,6 14 523.9 15 520.1 16 517.5 17 517.7 18 519.1 i 19 519.7 l 20 517.6 21 516.4 22 522.9 23 520.5 24 521.0 25 522.5 ,

I 26 521.4 27 520.7 28 518.2 i 29 512.9 30 517.4 31 #N/A j

i

REFUELING INFORMATION e

• DOCKET NO: 50-0331 DATE: 07/12/96 Unit: Duane Arnold Enercy Center COMPLETED BY: Richard Woodward TELEPHONE: (3191 851-7318

1. Name of facility.

Duane Arnold Energy Center

2. Scheduled date for next refueling shutdown.

Refuel Outage XIV to begin October 11,1996.

3. Scheduled date for restart following refueling.

November 11,1996

4. Will refueling or resumption of operation thereafter require a technical specification change or other license amendment?

Yes RTS 269, T.S. 3.7," Plant Containment Systems" RTS 288, T.S. 2.1,3.2," Reactor Water Clean-up Systems Vessel L.evel Isolation Set-Point Change" j l

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

RTS 269, submitted December 22,1995 RTS 288, submitted January 18,1996  ;

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.

No

7. Current and projected fuel assemblies inventory:

Number of Projected date oflast Fuel refueling that can be Assemblies discharged In:talled in reactor core (following refueling) 368 n/a Previously discharged from core to Spent Fuel Storage 1408 n/a Pool (following refueling)

Under present physical capacity of Spent Fuel Storage 2411 2007 Pool Under Licensed Capacity of Spent Fuel Storage Pool 3152 2014

DOCKETNO: 50-0331 DATE: 07/12/96 .

Unit: Duane Arnold Enercy Center COMPLETED BY: Richard Woodward TELEPliONE: (3191 851-7318 UNIT SilUTDOWNS AND POWER REDUCTIONS REPORT MONTil: June 1996 No. Date Type Ditration Reason Method of Licensee Event System Code Comp. Code Cause (1) (ifours) (2) Shutting Report # (4) (5)

Down Reactor (3) 8 June S 0 B 5 n/a n/a n/a Control Rod Sequence Exchange

'8-9 (4.5 full-power-hours equivalent) 1 - F: Forced 2 - Reason 3 - Method: 4 - Exhibit G-Instructions for S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data Entry B-Maintenance or Test 2-Manual Scram Sheets for Licensee Event C-Refueling 3-Automatic Scram Report (LER) File (NUREG-D-Regulatory Restriction 4-Continued 0161)

E-Operator Training & License Examination 5-Reduced Load F-Administrative 9-Other (Explain) 5 - Exhibit I (Same Source)

G-Operational Error (Explain)

II-Other(Explain)

. . _ _ _ _ _ _ - - - _ . . - - _ - - - - - - - - - - _ _ _ .- - - . w v ..-. - , - , ~~. - - - - - - - ,a . ._ ----

. DOCKET NO.: 50-0331 DATE: 07/12/96 Unit: Duane Arnold Enerev Center COMPLETED BY: Richard Woodw ard TELEPHONE: (,319) 851-7318 Monthly Operational Overview for June 1996 :

The DAEC operated at full thermal power throughout the month except:

e on June 8-9, to perform a scheduled Control Rod Sequence Exchange; 4.5 full-power-hours (equivalent) lost.

e on June 4,10, and 15, and 24, to reduce recirculation flow to withdraw a control rod, and on June 13, to perform surveillance testing of the High Pressure Coolant injection System.

Total forgone production (including other small planned losses) was the equivalent of 20.7 full-power hours of operation.

At the end of the month the Duane Arnold Energy Center had operated 391 consecutive days, its best-ever continuous operating run.

Allocauon of Production & Losses: Liectncal Lapacity Factor 1 ull Power Output %of 565.7 MWe Equivalent l MWe (Design Gross floun Rating)

Actual Metered Net Electne Output 518.7 91.7 % 660.2 Actual Metered Plant Electric leads - 30.7 5.4% 39.1 l Load Following 0.0 0.0% 0.0 Off-Line 0.0 0.0% 0.0 l Weather losses, ie., condenser pressure >2.75 in tig / Circ % ater Temp > 74.5 *1 72 32% 9.3 Planned Capacity Losses: $cq Exchg 6/8-9, other small planned losses 3.8 0.7% 4.9 Unplanned Capacity Losses: None 0.0 0.0% 0.0 Normal Capacity Losses (Avg MWth < 1658) 0.4 0.1% 0.6 Metering losses (Avg indic MWe - Avg M%11c) 2.0 0.4% 2.5 Efficiency losses (Weather-Norm-Full-Power-M%'e < 565.7) 2.2 0.1% M Design Gross Electric Output E 100 0 % R 7

(There were no Licensee Event Reports)

Licensine Action Summary:

Plant Availability: 100.0 % Unplanned Auto Scrams (while/ critical) this month: 0 Number of reportable events: 0 Unplanned Auto Scrams (while/ critical) last 12 months: 0 l

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