NG-02-0121, January 2002 Monthly Operating Report for Duane Arnold Energy Center
| ML020590317 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 02/15/2002 |
| From: | Richard Anderson Nuclear Management Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NG-02-0121 | |
| Download: ML020590317 (7) | |
Text
Duane Arnold Energy Center 3313 DAEC Road Palo, IA 52324-9646 Operated by Nuclear Management Company, LLC February 15, 2002 NG-02-0121 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station 0-Pl-17 Washington; DC 20555-0001
Subject:
File:
Duane Arnold Energy Center Docket No: 50-331 Operating License: DPR-49 January 2002 Monthly Operating Report A-118d Please find enclosed the Duane Arnold Energy Center Monthly Operating Report for January 2002. 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, Rob Anderson Plant Manager-Nuclear RA/RBW Enclosures is;,
Committed to Nuclear Excellence
February 15, 2002 NG-02-0121 Page 2 of 2 cc:
Mr. James E. Dyer Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, IL 60532-4351 Ms. Barbara Lewis McGraw-Hill, Inc.
1200 G Street NW, Suite 1100 Washington, DC 20005 Mr. Dennis Murdock Central Iowa Power Cooperative Box 2517 Cedar Rapids, IA 52406 Document Control Desk INPO Records Center 700 Galleria Parkway Atlanta, GA 30339-5957 Ms. Brenda Mozafari Project Manager 1 White Flint North Mail Stop 13D18 11555 Rockville Pike Rockville, MD 20852 Ms. Lisa Stump Iowa State Utilities Board Lucas State Office Building Des Moines, IA 50319 Dr. William A. Jacobs, Jr.
GDS Associates, Inc.
1850 Parkway Place, Suite 720 Marietta, GA 30068-8237 Mr. Dale Arends Corn Belt Power Cooperative 1300 13th Street North Humboldt, IA 50548 Mr. Al Gutterman Morgan, Lewis, Bockius 1800 M St. NW Washington, DC 20036-5859 DOCU NRC Resident Inspector CTS Project - Are.
OPERATING DATA REPORT DOCKET NO:
DATE:
Unit:
COMPLETED BY:
TELEPHONE:
50-331 02-15-2002 Duane Arnold Energy Center Richard Woodward (319) 851-7318 OPERATING STATUS
- 1.
Unit Name: Duane Arnold Energy Center 700 20
- 2.
Reporting Period: Januar 2002 650
- 3.
Licensed Thermal Power (MWth): 1912 60 Tech. Spec. Amendment 243 and TSCR for extended power uprate was implemented November 7, 2001.
.55 Current operating thermal power, as limited by balance-50 2
of-plant equipment is 1-799 1770.
450 10
- 4.
Nameplate Rating (Gross MWe DER): 676.425 Current rated output, adjusted for as-built balance-of plant conditions is 614.
607.0 350
- 5.
Design Electrical Rating (Net MWe DER): 484-4 574.4 30
- 6.
Maximum Dependable Capacity (Gross MWe MDC):
59-34586.1
- 7.
Maximum Dependable Capacity (Net MWe MDC): 5654 558.5
- 8.
If Changes Occur in Capacity Ratings (Items Number 3 through 7) since the last report, give reasons: On January 1 St administrative limited thermal power was reduced from 1790 to 1770 MWhf due to design limitations on the feedwater flow regulating valves. The 20 MWt thermal power decrease resulted in reducing output ratings by 7 MWe.
- 9.
Power Level to Which Restricted, If Any (Net MWe): N/A
- 10.
Reasons for Restrictions, If Any: N/A 2002 Cumulative Jan-02
- 11.
Hours in Reporting Period 744.0 744.0 236,688.0
- 12.
Number of Hours Reactor Was Critical 744.0 744.0 186,724.6
- 13.
Reactor Reserve Shutdown Hours 0.0 0.0 0.0
- 14.
Hours Generator On-Line 744.0 744.0 182,668.9
- 15.
Unit Reserve Shutdown Hours 0.0 0.0 0.0
- 16.
Gross Thermal Energy Generated (M[WH) 1,280,153.5 1,280,153.5 265,778,783.3
- 17.
Gross Electrical Energy Generated (MWH) 442,902.0 442,902.0 89,177,119.6
- 18.
Net Electrical Energy Generated (MWH) 419,086.1 419,086.1 83,794,712.1
- 19.
Unit Service Factor 100.0%
100.0%
77.2%
- 20.
Unit Availability Factor 100.0%
100.0%
77.2%
- 21.
Unit Capacity Factor (Using MDC Net) 100.9%
100.9%
69.6%
- 22.
Unit Capacity Factor (Using DER Net) 98.2%
98.1%
66.8%
- 23.
Unit Forced Outage Rate 0.0%
0.0%
8.5%
- 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
AVERAGE DAILY UNIT POWER LEVEL DOCKET NO:
50-331 DATE:
02-15-2002 Unit:
Duane Arnold Energy Center COMPLETED BY:
Richard Woodward TELEPHONE:
(319) 851-7318 MONTH January 2002 Day Average Daily Power Level (MWe-Net) 1 552.9 2
577.9 3
579.6 4
580.3 5
580.0 6
581.5 7
583.2 8
575.9 9
581.5 10 577.8 11 580.0 12 579.3 13 580.1 14 579.4 15 580.0 16 581.7 17 581.1 18 582.8 19 579.8 20 582.2 21 581.5 22 579.0 23 580.9 24 581.6 25 576.0 26 249.5 27 417.6 28 554.6 29 584.1 30 577.3 31 579.7
REFUELING INFORMATION DOCKET NO: 50-331 DATE:
02-15-2002 Unit: Duane Arnold Energy Center COMPLETED BY:
Richard Woodward TELEPHONE:
(319) 851-7318
- 1.
Name of facility. Duane Arnold Energy Center
- 2.
Scheduled date for next refueling shutdown. Spring 2003
- 3.
Scheduled date for restart following refueling. Spring 2003
- 4.
Will refueling or resumption of operation thereafter require a technical specification change or other license amendment? No
- 5.
Scheduled date(s) for submitting proposed licensing action and supporting information. N/A
- 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. N/A
- 7.
Current fuel assemblies inventory_
Number of Projected date of last Fuel refueling that can be Assemblies discharged (after allowing margin for maintenance of continuous full-core discharge capability)
Installed into reactor core 368 Discharged from core to Spent Fuel Storage Pool 1912 Installed capacitvy of§ pnt Fuel Storage Pool 2411 2001 Licensed capacity of Spent Fuel Storage Pool (with reracking) 2829 2007 Licensed capacity of Spent Fuel Storage Pool and Cask Pool (with 3152 2011 reracking)
DOCKET NO:
DATE:
Unit:
COMPLETED BY:
TELEPHONE:
50-331 02-15-2002 Duane Arnold Energy Center Richard Woodward (319) 851-7318 UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH: January 2002 No.
Date Type Duration Reason Method of Licensee Cause (1)
(Hours)
(2)
Shutting Event Down Reactor Report #
(3) 01/25/02 S
0 B
5 N/a Sequence Exchange (20.2 full-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)
DOCKET NO.:
50-331 DATE:
02-15-2002 Unit:
Duane Arnold Energy Center COMPLETED BY:
Richard Woodward TELEPHONE:
(319) 851-7318 Monthly Operational Overview for January 2002 At 00:53 on December 3 1St, operators had reduced power to 955 MWth, 293 MWe to perform a steam leak repair on the IT 91 'B' 1st Stage Moisture Separator Reheater drain tank manway gasket. Following completion of the repair of the valve, reactor thermal power was increased to 1790 MWth at 11:19 on January 1t.
At 15:37 January 1't power was reduced to 1745 MWth by lowering Reactor Recirculation System (RRS) flow to withdraw control rods to adjust loadline. Power was increased to 1790 MWth at 16:01.
At 17:29 January ist, shortly after the power increase, the 'B' Feed Regulating Valve (FRV) exhibited position oscillations, and reactor power was lowered to approximately 1770 MWth to stabilize reactor feed flow. Subsequently, pending resolution of design issues with the FRVs, the administrative limit on thermal power was reduced from 1790 to 1770 MWth, and corresponding rated electric output was reduced from 614 to 607 MWe.
At 04:52 on January 2"'-reacto-r power was reduced to 1700 MWth by lowering RRS flow to withdraw-control rods to adjust loadline. Power was increased to 1770 MWth at 17:39.
On January 17th at 00:37, power was reduced approximately 2 MWe for approximately seven hours to calibrate FT158 1 and FT1626, 'A' and 'B' Feedwater flow transmitters.
The DAEC continued operating at its 1770 MWth administrative thermal power limit until January 25th at 16:33 when, during switching of its electrical supply, the 'B' RRS Motor-Generator (MG) set scoop tube ran back 1.8% and automatically locked up. The runback lowered reactor power by 10 MWth. Following the reduction in power, the RRS pump mismatch was verified, and the RRS MG Scoop Tube Lock was reset. Core thermal power, recirculation pump speed, and core flow were observed to be stable. At 17:40, thermal power was returned to 1770 MWth.
At 22:31 January 25th, Reactor power was lowered in order to allow performance of a control rod sequence exchange, along with removal of the 'B' Condensate and Feedwater Pumps from service to allow troubleshooting and maintenance to be performed on the 'B' FRV and minimum flow valve. Return to full power was achieved at 18:00 on January 27h.
Following the sequence exchange, power was briefly lowered by reducing RRS flow four times (20:07 on January 27 h, and 03:07, 10:13, and 23:34 on January 28"h) to change control rod positions to adjust loadline.
At 15:34 on January 29"h, power was increased to 1790 MWth. The 'B' FRV was observed oscillating, and power was reduced to 1770 at 16:30.
Allocation of Production & Losses:
Capacity Factor Full Power Electrical
% of 607* MWe Equivalent I
Output MWe (Iaxgel-Outpu)
Hours (EPI-e~i Net ElectrklOutput 56-3.304 92.80%
690.42 Plant HousIe I oad (while oln-line)
+19
- 9)
Gross Electric Generation 595.28 98.07%
729.66 Canpadit-I oses.
(d eprt.
_rm IsI froI' fullh mibal po-ewe*'
Loadline Adiustmsets: 01/01 & 01/0200 0.02 Feedwater Flow Calibation 01/17 0.01 0.00%
0.01 Sequence Exchange and related follow-on rod-pulls 1/25 - 28 16.46 2.71%
20.18 MSR Steam Leak Rgeai2/31 00:53 01/01 16:01 0.99 0.16%
1.21 Maiti 4mKargi to 1770 Adiistrative MWth Limit 0.20.2 0.15 Efficiency Losses (occur even at full thermal power):
Unidenified idua 0.13 0 03%
0.16
-/+ Seasonal Effects(n.egativyelosses...i.e..-cold.weather i
ncreases)
(6A1)
(..
.9.%)
(2.3..
L otalcOn-in e Losses (Capaiy, Efficie...nc d Weather,)1 Off-Line Losses:
(none),0.0 110-90%0--
0.00 Licensing Action Summary:
Plant Availability:
100.0%
Unplanned Auto Scrams (while cntical) this month:
U Number of reportable events:
0 Unplanned Auto Scrams (while critical) last 12 months:
0