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Category:Legal-Pre-Filed Exhibits
MONTHYEARML1025100362010-09-0808 September 2010 PIC000001-Christopher I. Grimes Resume ML1025006142010-09-0707 September 2010 NRC000001-Boric Acid Corrosion Guidebook, Revision 1 ML1025006402010-09-0707 September 2010 NRC000030-Revised Policy Statement on the Conduct of Nuclear Power Plant Operations ML1025006382010-09-0707 September 2010 NRC000025-Figures 2 Through Figure 6 ML1025006332010-09-0707 September 2010 NRC000027-The Nature of Safety Cultua Review of Theory and Research ML1024607632010-09-0303 September 2010 NSP000061-SER Section 3.0.4 ML1024607282010-09-0303 September 2010 NSP000050-Revised Prefiled Testimony of Northard/Petersen/Peterson-2009 Corrective Action Program Self-Assessment ML1024607252010-09-0303 September 2010 NSP000041-Revised Prefiled Testimony of Northard/Petersen/Peterson-Performance Recovery Plan ML1024607682010-09-0303 September 2010 NSP000069-NRC December 21, 2007 PI&R Report ML1024607712010-09-0303 September 2010 NSP000070-PINGP Pride Initiative Focus 2010 ML1024606332010-09-0303 September 2010 NSP000035B-Revised Testimony of Northard/Petersen/Peterson-Root Cause Evaluation Report 01157726 ML1024606292010-09-0303 September 2010 NSP000020-Revised Testimony of Northard/Petersen/Peterson-Petersen Resume ML1024606272010-09-0303 September 2010 NSP000035C-Revised Testimony of Northard/Petersen/Peterson-Root Cause Evaluation Report 01157726 ML1024606242010-09-0303 September 2010 NSP000019-Revised Testimony of Northard/Petersen/Peterson-Northard Resume ML1024605692010-09-0303 September 2010 Applicant Revised Exhibit NSP000001-Revised Testimony of Steven Skoyen Resume ML1024605662010-09-0303 September 2010 NSP000017-Revised Testimony of Steven Skoyen-NUREG-1765 Excerpts ML1024605152010-09-0303 September 2010 Northern States Power Co. October 2010 Evidentiary Hearing on Safety Culture Contention, Hearing Exhibits ML1024605512010-09-0303 September 2010 NSP000015-Revised Testimony of Steven Skoyen-EFR 1160372-03 ML1024605522010-09-0303 September 2010 NSP000006-Revised Testimony of Steven Skoyen-2006 AES Letter ML1024605532010-09-0303 September 2010 NSP000010-Revised Testimony of Steven Skoyen-EFR 1160372-04 ML1024605542010-09-0303 September 2010 NSP000008-Revised Testimony of Steven Skoyen-Dominion Evaluation R-4448-00-01 ML1024605552010-09-0303 September 2010 NSP000012-Revised Testimony of Steven Skoyen-EC 15651 ML1024605562010-09-0303 September 2010 2009/09/03-Applicant-Revised Exhibit NSP000003-PINGP License Renewal Application Excerpts ML1024605572010-09-0303 September 2010 NSP000013-Revised Testimony of Steven Skoyen-ACRS Letter ML1024605582010-09-0303 September 2010 NSP000007-Revised Testimony of Steven Skoyen-CAP 1160372 ML1024605592010-09-0303 September 2010 NSP000011-Revised Testimony of Steven Skoyen-EC 15044 ML1024605602010-09-0303 September 2010 NSP000016-Revised Testimony of Steven Skoyen-ACRS July 2009 Meeting Transcript Excerpts ML1024605622010-09-0303 September 2010 Applicant Revised Exhibit NSP000004-Root Cause Evaluation Report 01160372-01 ML1024605632010-09-0303 September 2010 NSP000018-Revised Testimony of Steven Skoyen-CE 01140617-03 ML1024605642010-09-0303 September 2010 NSP000009-Revised Testimony of Steven Skoyen-CE 1233806-2 ML1024605652010-09-0303 September 2010 Applicant Revised Exhibit NSP000002-Schematic Representation of PINGP Containment ML1022504662010-08-13013 August 2010 NRC Staff Exhibit 63 - Boric Acid Corrosion Guidebook, Revision 1: Managing Boric Acid Corrosion Issues at PWR Power Stations EPRI, Palo Alto, CA (2001) 1000975 Pages 4-25 & 4-26 ML1022504702010-08-13013 August 2010 2010/08/13-NRC Staff Exhibit 4A - NUREG-1800 Standard Review Plan for Review of License Renewal Applications for Nuclear Power Plants (SRP-LR) (September 2005), (Excerpt) ML1022504772010-08-13013 August 2010 NRC Staff Exhibit List ML1022504962010-08-13013 August 2010 Northard Exhibit 43, Section 3.0.4. of NRC SER ML1022504982010-08-13013 August 2010 Northard Exhibit 48, WM-0491 - Prairie Island Corrective Backlog ML1022505002010-08-13013 August 2010 Skoyen Exhibit 17, NUREG-1765 Excerpt ML1022505082010-08-13013 August 2010 Northard Exhibit 52, Pride Initiative Focus/2010 ML1022505132010-08-13013 August 2010 Skoyen Exhibit 18, CE01140617-03 Potential IWE Non-Compliance ML1022505142010-08-13013 August 2010 Northard Exhibit 42, Event Cross References in 2009 ML1022504952010-08-10010 August 2010 Skoyen Rebuttal Exhibits List ML1022505012010-08-10010 August 2010 List of Northard Rebuttal Exhibits ML1024607592010-08-0606 August 2010 NSP000066-PINGP Corrective Backlog 2010 ML1022504752010-08-0404 August 2010 NRC Staff Exhibit 62 - Summary of July 28, 2010 Public Meeting to Discuss Observations and Lessons Learned During the Pilot Application of the Nuclear Energy Institutes Nuclear Safety Culture Assessment Process (August 4, 2010) ML1021607812010-08-0404 August 2010 Intervenor-Exhibit 21-Xcel Management Review Committee Meeting Summary No. 2010-01, Msrc Meeting Date March 17 and 18, 2010 (NSPM Prod 00000267) ML1021607642010-08-0404 August 2010 Intervenor-Exhibit 1-Resume for Christopher I. 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PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNITS 1 AND 2 Docket Nos. 50-282-LR and 50-306-LR NRC STAFF EXHIBIT 63 Boric Acid Corrosion Guidebook, Revision 1: Managing Boric Acid Corrosion Issues at PWR Power Stations, EPRI, Palo Alto, CA (2001) 1000975 Pages 4-25 & 4-26
Boric Acid Corrosion Guidebook, Revision 1 Managing Boric Acid Corrosion Issues at PWR Power Stations Effective December 6. 2006. this report has been made publicly available in accordance with Section 734.3(b)(3) and published in accordance with Section 734.7 the U.S. Export Administration Regulations. As a result of this publication, this is subject to only copyright protection and does not require any license WARNING: from EPRI. This notice supersedes the export control restrictions and any Please read the License Agreement proprietary licensed material notices embedded in the document prior to publication.
on the back cover before removing the Wrapping Material.
Technical Report
EPRI Licensed Material Boric Acid Corrosion Tests Test Ref.: A Test Type: Immersion Aerated and Deaerated Boric Acid Org/Date: Westinghouse (1967)
References:
"Materials Behavior Related Issues for Bolting Applications in the Nuclear Industry." Conference: Improved Technology for Critical Bolting Applications, Chicago, Ill., July 20-24, 1986. MPC-Vol. 26 [22].
Absorption o/Corrosion Hydrogen by 302B Steel at 70F to 500F.
Westinghouse Electric Corporation, 1967, WCAP-7099 [23].
Test Configuration, Procedure, and Results Westinghouse conducted a series of tests on electrically isolated coupons of A-302 Grade B low-alloy steel in both aerated and deaerated environments. Some experiments involved cases where the low-alloy steel test coupons were coupled to 304 stainless steel. Tests were conducted at 2500 ppm boron at several different temperatures.
Table 4-3 gives the average corrosion rate for long periods of time (40-160 days) for each of the test conditions. The test results plotted in Figure 4-8 show the effect of test duration.
Table 4-3 Average Corrosion Rates in Aerated and Oeaerated Water - Westinghouse Tests Temperature in Corrosion Rate Oeaerated in Corrosion Rate Aerated in OF eC) IncheslYear (mm/yr) IncheslYear (mm/yr)
Isolated Coupled to 304 Isolated Coupled to 304 70 (21) 0.0002 (0.005) --- 0.002 (0.05) 0.002 (0.05) 100 (38) 0.00005 (0.0013) 0.00005 (0.0013) 0.007 (0.18) 0.007 (0.18) 140 (60) 0.00007 (0.0018) 0.00011 (0.0028) 0.015 (0.38) 0.015 (0.38) 500* (260) --- --- 0.24 (6.1) --
- Provided at meeting with Westinghouse.
Key observations from these tests are:
- In deaerated water at temperatures less than 140°F (60°C), the corrosion rates are very low.
- In aerated water, the corrosion rates increase with temperature from 70°F to 140°F (21°C to 60°C) with the long-term corrosion rate at 140°F (60°C) being about 0.0 IS in/yr (0.38 mrnlyr).
- The galvanic couple between low-alloy steel and stainless steel has little effect on the corrosion rates of low-alloy steel in borated water.
4-25
EPRI Licensed Material Boric Acid Corrosion Tests
- Initial corrosion rates can be much higher than long-term corrosion rates.
- The corrosion rate in aerated borated water at 500 0 P (260°C) is 0.24 inlyr (6.1 mrnlyr).
Conclusions Corrosion rates in low-temperature de aerated water are very low. Corrosion rates in aerated water at temperatures less than 140 0 P (60°C) are acceptably low to not pose a serious problem with leakage of borated water.
18000 200 o A302B Isolated Coupons ACO A3028 Isolated Coupons 16000
- A302B Coupled to 30488 180 .... A3028 Coupled to 30488 14000 160 12000 140 N
E E
~ ~
E 10000 E 120 c:- c'
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.2 i\\
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CI) g 8000 100
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U° U° 1-6000 80 4000 60 21 'C ~ 4.77 X 10" mm/yr (70'F ~ 0.002 In/yr)
~~~::~::~~::==(=70='~F~~~0.:00~2~ln=/y~r)~~
2000 40 A o~~~=
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o 20 40 60 80 100 120 140 160 O~--~~~--~--~--~--~
o 20 40 60 80 100 120
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140 160 Test Time, Days Test Time. Days Corrosion as measured in wei~ht loss Corrosion as A3028 in deaerated of A302B in air-saturated bOriC acid boric acid solution containing solution containing 2500 ppm boron 2500 ppm boron Figure 4-8 Corrosion Rate in Aerated and Deaerated Water - Westinghouse Tests [22) 4-26