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Category:Legal-Exhibit
MONTHYEARIR 05000271/20120082012-04-20020 April 2012
Official Exhibit - NYS000462-00-BD01 - IR 05000271-12-008; 1/9 - 13, 1/23 - 27, and 3/19 - 20/2012; Vermont Yankee Nuclear Power Station; Post Approval Site Inspection for License Renewal 1P71003.
ML15331A1572011-12-23023 December 2011
Official Exhibit - NYS000460-00-BD01 - Commitment Charge Process.
IR 05000271/20110112011-12-22022 December 2011
Official Exhibit - NYS000459-00-BD01 - IR 05000271-11-011; 10/17/2011 - 12/11/2011; Vermont Yankee Nuclear Power Station; Review of License Renewal Activities.
ML0825303982008-09-14014 September 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-28-VY, VY EPRI Checworks Wear Rate Analysis Results Cycles 20 & 21 (2001)
ML0825303102008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-17-VY, INPO Report OE-21421 (Dresden 3)
ML0823304162008-08-12012 August 2008
Entergy Exhibit List - Appendix a, Entergy Nuclear Vermont Yankee LLC and Entergy Nuclear Operations Inc. July 2008 Evidentiary Hearing
ML0823304172008-08-12012 August 2008
NRC Staff Exhibit List - Vermont Yankee Nuclear Power Station July 2008 Evidentiary Hearing
ML0823304192008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing, New England Coalition Exhibit List
ML0823304982008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Intervenor Exhibit NEC-JH_35, NRC, Safety Evaluation by the Office of Nuclear Reactor Regulation Related to Amendment No. 229 to Facility Operating License No. DPR-28 Entergy Nuclear Vermont...
ML0823406782008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Intervenor Exhibit NEC-RH_02, Curriculum Vitae of Rudolf Hausler
ML0823406802008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Intervenor Exhibit NEC-UW_02, Curriculum Vitae of Ulrich Witte
ML0823407332008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Intervenor Exhibit NEC-UW_15, L. E. Hochreiter, Data Collection of Pipe Failures Occurring in Stainless Steel and Carbon Steel Piping, Nuce 597D - Project 1 (April 2005) (Corrected)
ML0823407342008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Intervenor Exhibit NEC-UW_20, Vermont Yankee Nuclear Power Station, PP7028: Piping FAC Inspection Program - FAC Inspection Program Records for 2005 Refueling Outage. (Corrected)
ML0824904142008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E2-02-VY, Fitzpatrick Jc
ML0824904732008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E2-29-VY, List of Drawings Provided to NEC in Discovery
ML0825200232008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E2-06-VY, NUREG/CR-6583
ML0825301682008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E3-02-VY, Hoffman Cv
BVY 05-084, Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E3-05-VY, Attachment 6 to Supplement 33 to VY EPU Application2008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E3-05-VY, Attachment 6 to Supplement 33 to VY EPU Application
BVY 04-058, 2008-08/12-Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E3-04-VY Attachment 2 to Supplement 8 to VY EPU Application2008-08-12012 August 2008
2008-08/12-Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E3-04-VY Attachment 2 to Supplement 8 to VY EPU Application
ML0825302732008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-03-VY, Fitzpatrick Cv
ML0825302762008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-06-VY, VY Procedure EN-DC-315
ML0825303062008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-13-UY, INPO Report OE-17412 (Clinton)
ML0825303072008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-15-VY, INPO Report OE-20246 (Clinton)
ML0825303082008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-15-VY, INPO Report OE-20246 (Clinton)
ML0825303092008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-16-VY, INPO Report OE-17654 (Clinton)
ML0825303452008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-08-VY, Flow-Accelerated Corrosion in Power Plants
ML0825303692008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-18-VY, NRC Exhibit NEC-JH_18 LRA A3 Fdw 02 at Lph Ppb
ML0825303702008-08-12012 August 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-19-VY, Effects of Chemistry on Corrosion-Erosion of Steels in Water and Wet Steam
ML0825303182008-07-31031 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Application Exhibit E4-43-VY, Dr. Horowitz'S Checworks Presentation
ML0825303212008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-39-VY, Checworks v1.0G_Enhancements
ML0825302742008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-04-VY, Section B.1.13 of VY LRA
ML0825303722008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-22-VY, Heat and Mass Transfer Downstream of Abrupt Nozzle Expansion in Turbulent Flow
ML0825302722008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-02-VY, Horowitz Cv
ML0825303752008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-29-VY, EPRI Checworks Wear Rate Cycle 22B (2003)
ML0825304702008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-14-VY, INPO Report OE-18478 (Clinton)
ML0825301692008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E3-03-VY, Lukens C V
ML0824904812008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E2-39-VY, Vermont Yankee Transient Counting Status
ML0823305252008-07-23023 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Intervenor Exhibit NEC-JH_43, PP7028 FAC Inspections 2004 Refueling Outage.
ML0825303632008-07-21021 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E4-21-VY, INPO Report OE-20127 (Calvert Cliffs)
ML0823304232008-07-21021 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Intervenor Exhibit NEC-JH_02, Curriculum Vitae of Joram Hopenfeld
ML0825504092008-07-21021 July 2008
Vermont Yankee July 2008 Evidentiary Hearing - Applicant Exhibit E2-36-VY, Transcript of ACRS Meeting 03/06/08 (Excerpt)
ML0823406772008-07-21021 July 2008
Vermont Yankee July 2008 Evidentiary Hearing-Intervenor Exhibit NEC-JH_71, Bignold, G.J. Et Al, Paper 1, Water Chemistry II, Bnes (1980): 5-18
ML0823406792008-06-0202 June 2008
Vermont Yankee July 2008 Evidentiary Hearing - Intervenor Exhibit NEC-RH_05, Rudolf Hausler, Flow Assisted Corrosion (FAC) and Flow Induced Localized Corrosion: Comparison and Discussion
ML0823200362008-06-0202 June 2008
Vermont Yankee July 2008 Evidentiary Hearing - Staff Exhbit B, Approved Applications for Power Uprates -www.NRC.gov/reactors/operating/licensing/power-uprates/approved-applications.html
ML0823809412008-05-31031 May 2008
2008/05/31-Vermont Yankee July 2008 Evidentiary Hearing - Staff Exhibit 1, NUREG-1907 Safety Evaluation Related to the License Renewal of Vermont Yankee Nuclear Power Station - Volume 1 (ML081430057) & Volume 2 (ML081430109) Combined (May 2
ML0823809422008-05-31031 May 2008
2008/05/31-Vermont Yankee July 2008 Evidentiary Hearing - Staff Exhibit 1, NUREG-1907 Safety Evaluation Related to the License Renewal of Vermont Yankee Nuclear Power Station - Volume 1 (ML081430057) & Volume 2 (ML081430109) Combined (May 2
ML0813501622008-05-13013 May 2008
Vermont Yankee - Exhibit List of NRC Staff Initial Statement of Position on NEC Contentions 2A, 2B, 3 and 4
ML0817500362008-05-12012 May 2008
Exhibits to Entergy'S Direct Testimony on NEC Contention 2 - Environmentally Assisted Fatigue - Includes Exhibits E2-02 Through E2-20, Volume 1
ML0817500382008-05-12012 May 2008
Exhibits to Entergy'S Direct Testimony on NEC Contention 4 - Flow-Accelerated Corrosion Includes Exhibits E4-02 Through E4-29, Volume 1
ML0823200192008-05-12012 May 2008
Vermont Yankee July 2008 Evidentiary Hearing - Staff Exhibit 2, Affidavit of Kenneth C. Chang
2012-04-20
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SUBJECT:
0E21421 - (Preliminary) Loss of condenser vacuum due to air in-leakage and a degraded steam jet air ejector train
- k* TR T ýAN 0 ýN Abstract: With Dresden Unit 3 at i00 percent power, a derate was required to maintain condenser vacuum after a step increase in air in-leakage to the condenser. The event was compounded by operation on a degraded steam jet air ejector train.
Reason for Message: When evaluating steam jet air ejector trains for operation during summer months consider the health of the trains.
Summer months are the largest challenge for air 'ejectors when condensate temperatures reach their highest levels and degrade the steam jet air ejector inter condenser vacuum and, as a result, the efficiency of the steam jets. Had the 3A steam jet air ejector train been in service, Dresden Unit 3 would have been able to operate with the elevated in-leakage. Additionally, the most probable location of the in-leakage is from the vacuum pump piping that ties into the center waterbox. This was identified as a suspect location of leakage at Quad Cities in 2001.
Event date: 8/15/05.
Station/ Unit Name: Dresden /Unit 3 NSSS/A-E: Westinghouse/ Sargent-
& Lundy Turbine Manufacturer: Westinghouse Maintenance Rule Applicability: Yes Component Information: Unit 3B Second Stage Air Ejector Manufacturer: Ingersoll Rand (now alstom power)
Model Number: #1 4MF-24, #2 4MF-8 Part Number:
Description:
The following chronologyi describes the course of this event and associated actions:
April 2005 Dresden Unit 3 shifted to 3B offgas train for maintenance orn the 3A train 8/15/05 Offgas flow increases to 196 SCFM 8/19/05 Reduced load to 860 Mwe due to SJAE "chugging" 8/20/05 Indication of leak in condenser from Helium testing 8/21/05 Attempted to increase load to 912 Mwe but had to abort due to c,ondenser backpressure transient and onset of SJAE "chugging" 8/25/05 Reduced load to 500 Mwe and shifted to the 3A offgas train 8/26/05 . Returned to full power (912 Mwe) on the 3A offgas train Causes:
The most probable cause of air in-leakage (unconfirmed because-.outage has not been taken yet to confirm the leak) is from the circulating
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U.S. NUCLEAR REGULATORY COMIvlbbylu*
Inthe Matter of IJU U-b¶Lf
,,J *o,,*,J *A Yak/vL. LLL-Docket No. 60-Z?1JfQ!fcial Exhibit No. *W-F7- Vf OFFERED by(eeýtervenor NRC Staff Other IDEN, F on oniE wm o31/2J ane Ks Wn -
Action Taken: . ý REWM WD N
water vacuum pump (water side of the condenser used for system start-up)
The most probable cause of the lost generation is degraded 2nd stage Steam Jet Air Ejector on the 3B train.
Corrective Actions:
Repair the condenser waterbox leak during next outage of sufficient duration Repair the 3B steam jet air ejector during next refueling outage Safety Significance:
None Information
Contact:
S. Miller, 815-416-3872, scott.miller2@exeloncorp.com C. Bowser, 815-416-3808, charlie.bowser@exeloncorp.com NOTICE:
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