ML14142A323

NRR E-mail Capture - Calvert Cliffs May 21, 2014 Public Meeting Presentation

ML14142A323
Person / Time
Site:	Calvert Cliffs
Issue date:	05/22/2014
From:	Nadiyah Morgan Division of Operating Reactor Licensing
To:	Office of Nuclear Reactor Regulation
References
Download: ML14142A323 (39)

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NRR-PMDAPEm Resource From: Morgan, Nadiyah Sent: Thursday, May 22, 2014 11:45 AM To: NRR-PMDA-ECapture Resource

Subject:

Calvert Cliffs May 21, 2014 Public Meeting Presentation Attachments: RI GSI-191 May, 2014 Meeting with NRC Rev. 4.pdf Hi Leslie, Would you please add the attached document to ADAMS?

Docket Nos.: 05000317 and 05000318

Thanks, Dee Nadiyah S. Morgan Calvert Cliffs and Pilgrim Project Manager, NRR US Nuclear Regulatory Commission O-8F4 (301) 415-1016 Nadiyah.Morgan@NRC.GOV 1

Hearing Identifier: NRR_PMDA Email Number: 1305 Mail Envelope Properties (9C2386A0C0BC584684916F7A0482B6CAFCB2EA1FB9)

Subject:

Calvert Cliffs May 21, 2014 Public Meeting Presentation Sent Date: 5/22/2014 11:45:28 AM Received Date: 5/22/2014 11:45:29 AM From: Morgan, Nadiyah Created By: Nadiyah.Morgan@nrc.gov Recipients:

"NRR-PMDA-ECapture Resource" <NRR-PMDA-ECapture.Resource@nrc.gov>

Tracking Status: None Post Office: HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 311 5/22/2014 11:45:29 AM RI GSI-191 May, 2014 Meeting with NRC Rev. 4.pdf 1293700 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

Calvert Cliffs GSI-191 Program Plans for Chemical Effects Testing Plans for Penetration/Bypass Testing Eighth Discussion With NRC Staff May 21, 2014

Agenda

• Introductions

• Objectives for Meeting

• Introduction to CCNPP Program for Vic Cusumano

• Discussion of Autoclave Chemical Effects Test Results

• Discussion of Integrated Chemical Effects Testing Plans

• Discussion of Small-Scale Debris Penetration Testing Plans

• Schedule for Future Periodic Meetings 1 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

CCNPP Attendees

• Tom Konerth - Supervisor Mechanical & Civil Design

• Anne Lederer - Mechanical Design Engineer

• Ken Greene - Licensing Engineer

• Jim Landale - PRA Lead RI GSI-191

• John Swailes - Project Manager GSI-191

• Craig Sellers - Project Manager RI GSI-191

• Andy Henni - Lead Design Engineer RI GSI-191

• Steve Kinsey - Chemical Effects Testing

• Eric Federline - Project Support & Testing 2 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Objectives of this Meeting

• Introduce CCNPP Risk Informed GSI-191 Resolution Project

• Discuss Autoclave Test Results

- CCNPP-CHLE-005 High Temperature Tests

- CCNPP-CHLE-006 Metals Tests

- CCNPP-CHLE-010 Concrete & Insulation Tests

- CCNPP-CHLE-011 Long Term Integrated Simulation Tests

• Discuss Integrated Chemical-Effects Head Loss Experiment (CHLE) Test Plans

• Discuss Small Scale Penetration Test Plans

• Establish Schedule for Future Meetings

• Capture Staff Issues and Concerns 3 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Introduction to CCNPP RI GSI-191 Project SECY-12-0093 Option 2

• Parallel Deterministic and Risk-Informed Resolution

- Refined Testing and Analysis to Support Deterministic Resolution

- Replacing Fibrous Insulation as Needed to Support Deterministic Closure

• Select Insulation Already Identified and Replaced

• Additional Replacement Possible Based on Deterministic Testing

- Risk-Informed Testing and Analysis Partnered with STP

- Close by 12/2019 4 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Introduction to CCNPP RI GSI-191 Project (Continued)

• Plant Modifications Completed to Date

- Aluminum Minimization

• Partial Insulation Replacement with SS RMI

• Scissor Lift Removal

• Scaffolding Materiel Removal

- NPSH Assurance

• New Large 6,000 sq. ft. CCI Pocket Strainer with Structural Reinforcement

- Multiple Large-Scale Strainer Head Loss Tests

- 2009 Chemical Effects Testing Suggesting Minimal Chemical Effects Head Loss

- Extensive 2013/2014 Autoclave Testing Yielding No Detectible Precipitates

• Refueling Cavity Drain Enlargement

• Recirculation Suction Header Temperature Instrumentation

- Debris and Chemical Effects Reduction

• Removal of Specific Mineral Wool in ZOI

• Removal of Specific Generic Fiberglass in ZOI

• Removal of Some Calcium Silicate and Double-Banding of that Remaining in ZOI

• Replaced TSP Buffer with NaTB

• Containment Aluminum Minimization 5 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Introduction to CCNPP RI GSI-191 Project (Continued)

• Downstream Effects

- Ex-Vessel

• Complete and Acceptable (WCAP-16406-P-A)

• Replaced HPSI Pump Cyclone Separators

- In-Vessel

• 2007 Strainer Bypass Testing

• LOCADM Acceptance (WCAP-16793-NP-A)

• Current Activities

- Testing

• Integrated Chemical Effects Testing

- Extensive Interaction with NRC Staff

- Establish Agreement on Methods/Protocols and Acceptance of Results

• Strainer Penetration (Bypass) Testing

- Small-Scale Sensitivity Testing

- Large-Scale Penetration Quantification Testing

• Strainer Head Loss Testing, as Required

- Re-Evaluation of Downstream Effects

• As Needed by Updated Penetration Test Results 6 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Introduction to CCNPP RI GSI-191 Project (Continued)

- Industry Activities

• Partner in STP RI GSI-191 Resolution Project

- Best-Estimate Calculations

• Containment Water Mass

• Pool Temperature Profiles for VS, S, M, L, and VL LOCAs

• Debris Generation, including CRUD Debris

• Debris Transport

• Pool Boron Concentration

• Pool Lithium Concentration

• Pool Strong Acid Production

• Pool pH

• Copper and Galvanized Steel Surface Areas

• Submerged Concrete Surface Area

• Calculations Support Deterministic and Risk-Informed Resolution Approaches

- Risk-Informed Analyses

• Hybrid LOCA Frequency

• Initial Risk-Assessment Quantification

• Participant in PWROG Comprehensive Analysis and Test Program

- Member of PWROG GSI-191 Challenge Board

- Participating with PWROG GSI-191 TIGER Team 7 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Introduction to CCNPP RI GSI-191 Project (Continued)

Overview of On-Going Chemical Effects Test Program

• Objective

- Demonstrate Minimal Chemical Effects

- Identify Chemical Effects P on Detector Debris Bed

- Determine Time and/or Temperature at Which Chemical Effects Are Detected or Not

- Used as Basis for Deterministic and Risk-Informed Resolution of GSI-191

• Approach

- Long-Term Integrated Chemical Effects Tests

- Circulate Flow Through Repeatable and Sensitive Detector Debris Bed

- Extensive Autoclave Testing to Refine Design of Experimental Protocols

• Begin with Design Basis Chemical Effects Tests

- DEGB LBLOCA Conditions w/Post 2014 RFO Insulation Configuration

- Post 2018 RFO Insulation Configuration, as required

• Potential Negligible Chemical Effects Outcome

- Permits Deterministic Resolution of GSI-191

• Risk-Informed Testing, As Necessary

- Medium & Small Break Chemical Effects Testing, as Necessary

- Appropriate with STP RI Approach 8 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Introduction to CCNPP RI GSI-191 Project (Continued)

Autoclave Test Program - More Than 50 Autoclave Tests

• CCNPP-CHLE-005 High Temperature Experiment [Complete, Results Herein]

- Address Initial High Temperature (>195°F) Portion of LOCA (<10 hours)

• CCNPP-CHLE-006 Metals Experiments [Complete, Results Herein]

- Single and Synergistic Corrosion Effects of Differing Metal Combinations

- Determine Most Appropriate Metals for Integrated Tests

• CCNPP-CHLE-007 Alkyds Coating Experiments [In-Progress]

- Investigate Chemical Effects Impact of Alkyd Coatings

• CCNPP-CHLE-010 Concrete Experiments [Complete, Results Herein]

- Single and Synergistic Corrosion Effects of Concrete and Insulation

• CCNPP-CHLE-011 Long-Term Integrated Simulation Autoclave Experiments [In-Progress, Early Results Herein]

- Determination of Duration for Long-Term Integrated Experiments Day Autoclave Simulation of Full Integrated Test

- Tests Completed

• No Increased Filtration Times Observed

• Chemistry Analysis Pending 9 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Introduction to CCNPP RI GSI-191 Project (Continued)

• Integrated Chemical Effects Head Loss Experiment (CHLE)

- Reviewed Conceptual Design with NRC Staff

- Facility Designed & Constructed

- Shakedown Testing in Process 10 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Autoclave Testing Preliminary Results

• CCNPP-CHLE-005 High-Temperature Test Results

• CCNPP-CHLE-006 Metals Test Results Synergistic Interactions Filtration Results

• CCNPP-CHLE-010 Concrete & Insulation Test Results

• CCNPP-CHLE-011 Long-Term Integrated Test Simulation 11 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

High Temperature Portion of LOCA - CCNPP-CHLE-005

• Initial 10 Hour Portion of DBA LOCA Temperature Profile in Sump > 195°F

• Autoclave Testing Compared Initial DBA LOCA Profile to 24 Hours at Sustained 195°F

• Testing with a Maximum Temperature of 195°F was given a 14 Hour Head Start start on the LOCA to Allow Extra Dissolution/Corrosion Such That the Constant 195°F Test Reaches LOCA Conditions at 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />

• Chart Nomenclature

- Red Line, Round Mark: Concentration at Time for Temperature Profile > 195°F

- Black Line, Square Mark: Concentration at Time for Temperature Maintained at 195°F

- Time = 0: Beginning of 24 Hour Constant 195°F

• 14 Hour Advanced Start on High Temperature Profile

- Final Concentration of Red Line is at 195°F 12 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

High Temperature Portion of LOCA (Continued) 8000 Ca, Zn, and Cu Releases Comparable at 195°F Zinc 6000 Concentration (ppb)

WCAP-16530-NP-A Predicts >40,000 ppb 4000 Ca 4500 4000 2000 3500 Calcium Profile 195-Ave Concentration (ppb) 3000 0 0 5 10 15 20 25 30 2500 Time (hr) 2000 600 1500 Copper Concentration (ppb) 1000 400 500 Profile 195-Ave 0

0.0 5.0 10.0 15.0 20.0 25.0 30.0 200 Time (hr)

Profile 195-Ave 0

0 5 10 15 20 25 30 Time (hr) 13 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

High Temperature Portion of LOCA (Continued)

• Al, Si, Mg, & Pb Concentrations Lower at Constant 195°F

• Al, Mg, and Pb Concentrations are all Low (<1.5 ppm) in Either Temperature Profile

• WCAP-16530-NP-A Predicts >65,000 ppb Al and >170,000 ppb Si, Silent on Mg and Pb 1600 25000 Aluminum Silicon Concentration (ppb) Concentration (ppb) 20000 1200 15000 800 10000 400 5000 Profile Profile 195-Ave 0 195-Ave 0

0 5 10 15 20 25 30 0 5 10 15 20 25 30 Time (hr) Time (hr) 800 1600 Magnesium Lead Concentration (ppb) Concentration (ppb) 600 1200 400 800 400 200 Profile 195-Ave Profile 195-Ave 0

0 0 5 10 15 20 25 30 0 5 10 15 20 25 30 Time (hr)

Time (hr 14 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

High Temperature Portion of LOCA (Continued)

CCNPP Proposes to Add Metal Salts to Solution to Account for Increased Release at High Temp

• Candidate Salts:

- Sodium Metasilicate

- Aluminum Nitrate Nonahydrate

- Magnesium Nitrate Hexahydrate

- Lead Nitrate

- Each has High Solubility in Water

- Avoids New Chemistry

• Nitrates Consistent with Nitric Acid Addition

• Silicate (from Sodium Metasilicate) Consistent with High Na Concentration (from NaTB)

• Required Quantities Added to 750 Gallon Fluid Volume (192,000 Tablespoons)

- Aluminum

• Required Boost = 0.92 ppm 36.3 grams Aluminum Nitrate (<1.5 Tablespoons)

- Silicon

• Required Boost = 6.11 ppm 75.5 grams Sodium Metasilicate (~2.2 Tablespoons)

- Magnesium

• Required Boost = 0.39 ppm 11.7 grams Magnesium Nitrate (~1.2 Teaspoons)

- Lead

• Required Boost = 0.83 ppm 3.8 grams Lead Nitrate (<0.25 Teaspoon) 15 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Autoclave Testing of Metals - CCNPP-CHLE-006

• CCNPP Performed >25 Autoclave Tests of Metals

• Various Combinations

• Objectives were:

- Investigate Single and Synergistic Corrosion Effects of Differing Metal Combinations

- Determine Which Metals are Appropriate for Integrated CHLE Tests

• 48 Hour Tests with Insulation & Containment Debris Materials 290

• CHLE-006 Tests Used More Severe Temperature 270 Profile than CHLE-005 Tests Which Unexpectedly Resulted in Higher Dissolved Concentrations of Metals Temp (F) 250 230 210 CHLE-005 CHLE-006 190

-80 120 320 520 720 Time (min)

• Filtration Results Show No Indication of Precipitates Adversely Impacting Filtration Times and Therefore not Affecting Head Loss 16 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Autoclave Testing of Metals (Continued)

• Results

- The Following Metals Used in Containment Will Be Included in Integrated Tests

• Aluminum, Copper, Galvanized Steel, and Lead

- Interactions Observed

• Zinc & Aluminum

• Zinc & Magnesium

• Zinc & Silicon

- Presence of Zn in Solution With Insulation, Concrete, and Marinite Reduces Release of Al, Mg, and Si

• High Zn Concentration from Metallic Zn Coupons Used as Surrogate for Inorganic Zinc-Rich Coatings (IOZ )

• Propose to use IOZ Coated Coupons instead of Metallic Zinc 17 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Autoclave Testing of Metals (Continued) 60000 280 Presence of Zn in Solution Reduces 260 Release of Al, Mg, & Si 50000 Si Concentration (ppb)

Silicon 240 40000 Temp (F) 220 30000 200 8000 280 20000 180 260 10000 160 Al Concentration (ppb) 6000 240 With Zn No Zn Temp 0 140 Aluminum -100 400 900 1400 1900 2400 2900 Temp (F) 220 4000 Time (min) 200 5000 280 180 260 Mg Concentration (ppb) 2000 4000 160 Magnesium 240 Temp (F)

With Zn No Zn Temp 3000 220 0 140

-100 400 900 1400 1900 2400 2900 2000 200 Time (min) 180 1000 160 With Zn No Zn Temp 351 in2 Metallic Zn 0 140

~33% of 10µm Sphere Surface -100 400 900 1400 1900 2400 2900 Area Time (min) 18 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Autoclave Testing of Metals (Continued)

Filtration Results

• 116 Filtration Sample Times

• Average Filtration Time <20 Seconds

• <100 Second Filtration Times

- No Indication of Difficult to Filter Precipitates

- Consistent with PWROG Criterion

• PWROG Filtration ation Time for NaTB Buffered Borated Water Ranged Between ~

~10 to ~20 Seconds 100 80 Filtration Time (s) 60 40 8 hr 20 24 hr 32 hr 0

48 hr Test Number - Description 19 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Autoclave Tests of Concrete and Insulation - CCNPP-CHLE-010

• The Following Autoclave Tests Were Run

• Insulation and Concrete

• Insulation Only

• Concrete Only

• Results

• Al, Ca, Mg, and Si Released from Both

• Tests Very Repeatable

• No Synergies Observed

• Plant-Specific Concrete to be Used in Integrated Tests 20 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

CCNPP-CHLE-011 Long-Term Integrated Simulation

• Four Autoclave Tests

- Simulated Integrated Tests

- All Materials Included Sample Filtration Times from 10-Day

• Insulation, Metals, Concrete, Integrated Test Simulations etc.

• Filtration Times

- No Indication of Difficult to Filter 60 Precipitates 50

- PWROG Filtration Time for NaTB Filtration Time (s)

Buffered Borated Water Ranged 40 Between ~10 to ~20 Seconds 30 501 20 502 10 503 504 0

Sample Description 21 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

PWROG Filtration Data - 24 Hour Autoclave Tests

• Same Data Provided to NRC by PWROG on April 16, 2014

• Slide 15 Of The Chemical Effects Autoclave Testing Presentation

• The Difference Is That The Plot Has Filtration Time Plotted On A Log Scale

• Calvert Cliffs is Test Number 03-01 22 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Autoclave Test Filtration Times CCNPP Filtration Times from 6 Integrated Simulations

• PWROG Filtration Criteria

- >100 Second - Indication of Potential for Some Chemical Effects

- Filtration Testing of Borated Demineralized Water Buffered with NaTB

• Low Filtration Time = 8.4 Seconds

• High Filtration Time = 17.3 Seconds Filtration Times 100 90 80 PWROG Indication of Some Chemical Effects Filtration Time (s) 70 60 PWROG Borated/NaTB High Filtration Times 50 40 CCNPP Average Time 30 from 6 Integrated Simulations 20 PWROG Borated/NaTB 10 Low Filtration Times 0

8 32 56 80 104 128 152 176 200 224 Sample Time (hr) 23 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated Chemical Effects Head Loss Experiment (CHLE)

• Use CCNPP-Specific Chemistry Conditions

• Use CCNPP-Specific Materials

• Materials Scaled Appropriately by Volume or Surface Area

• Autoclave Test Results Influenced Design of Experimental Protocols

• Simulate Bounding Sump Temperature Profile

• Circulate Solution Through Detector Debris Bed

• Stepwise Temperature Reduction at End of Experiments 24 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Plans - Test Facility Schematic Vertical Head Heat Exchanger Recirculatio Loss Column Loop n Loop Loop Heating

& Cooling 25 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Facility - Photos Initial Prep Tank Primary Reaction Chamber Vertical Head Loss Loop Heat Exchanger Loop 26 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Plans - Reaction Chamber Layout Submerged Coupons in Center Below Recirculation System to Assure Flow Across Coupons and Tank Mixing 27 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Plans - Reaction Chamber CFD

• Pump Recirculation to Assure Flow

• CFD Simulation Across Coupons and Tank Mixing 28 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Plans - Reaction Chamber CFD CFD Shows Mixing and Dissolution of Buffer Buffer Basket 29 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Facility - Long-Term Operation 30 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Plans

• Plant-Specific Chemistry

• Plant-Specific Materials

- Use Best Estimate (BE) Concentrations - Mineral Wool Insulation

• Sump Boron Concentration - Nukon

- Bounding Range: 2575 - 2897 ppm

• Equivalent for

- Best Estimate (BE): 2740 ppm (PD)

• Nukon

• Thermal Wrap

• Sump Lithium Concentration

• Generic Fiberglass

- Bounding Range: 0.036 -0.974 ppm

• Temp-Mat

- BE: 0.50 ppm (Average) - Lead Shielding Blankets

• Materials Provided by Lancs Industries

• NaTB Buffer Concentration

- Marinite Board Fire Barrier

- 16,500 lbm NaTB Installed

- BE Water Mass for LBLOCA: 4,099,799

• Materials from CCNPP Warehouse lbm - Concrete

- BE Water Volume @195°F: 509,998

• Materials from CCNPP Demolition gallons - Galvanized Steel & Copper

- Test Water Volume @195°F: 750 gallons

• Materials Conforming to Same ASTM Stds

- NaTB: 24.26 lbm

- Coatings

• Strong Acids

• Inorganic Zinc Coated Coupons

- HNO3 & HCl Added at Rate Produced

• Epoxy Coating Excluded

- 30 Day Total Added Before Stepwise

• Alkyd Coatings TBD (Autoclave Testing in Cooldown Progress)

- Assures Higher pH for Release and Lower pH for Potential Precipitation 31 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Plans (Continued)

• Temperature Conditions

• Simulate LBLOCA, 195°F Max

• Final Step-Wise Temperature Reduction

• Duration Determined Based on Results of

• Duration of Plateaus Based on Time for CCNPP-CHLE-011 Autoclave Test Detection in Debris Bed 280 150 260 140 240 220 130 Temperature (F) 120 Temperature (F) 200 180 110 160 100 140 90 120 80 100 70 80 60 60 50

-14 34 82 130 178 226 240 245 250 255 260 265 270 Time (hr) Time (Hr)

AOR Sump Temperature Test Temperature Test Temperature 32 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Status - Detector Debris Bed

• Building Bed at 6 gpm

• Reduce Flow to 1 gpm for Testing

- CCNPP Prototypical Approach Velocity

• Verify Sensitivity with WCAP-16530-NP-A Surrogate 5 10 ReduceFlow 9

4 8 7

3 6 p [ft water]

5 Diff Press Notes 2 4 Flow Add 1 ppm Al as 3 AlOOH 1 2 1

AddBuffer 0 0 0 2 4 6 8 10 Time after debris addition [h]

33 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Integrated CHLE Test Plans (Continued)

Modeling of Marinite Modeling of Zinc-Rich Coatings

• Marinite Fines Debris Historically Treated

• Failed Inorganic Zinc Coatings (IOZ) as 10 µm Spheres for Hydraulic Historically Treated as 10 µm Spheres for Characteristics Hydraulic Characteristics

• Modeling as such in Chemical Effects

• Modeling as such in Chemical Effects Testing Results in Non-Prototypical Surface Testing Results in Non-Prototypical Surface Area of Solid Marinite Area of Metallic Zinc

• Calvert Cliffs Proposed Approach

• Calvert Cliffs Proposed Approach

- Marinite Fine Debris Tested using 1/2 - IOZ in Zone of Influence and Degraded Thick Marinite Board with 50% of the Qualified IOZ Tested Using Cured/Aged Surface Area as 44 µm Spheres Based IOZ Coated Coupons with 2x Surface on Surface Roughness Area of Destroyed or Degraded Coatings

- Marinite non-Fines Tested using 1/2 Thick - Organic Zinc-Rich Coatings Tested Using Marinite Board with Postulated Surface Cured Coupons Coated With Same Area Submerged or Sprayed Coating 34 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Small-Scale Penetration Test Plan

• Sensitivity Tests

- Water Chemistry

• Tap Water

• Borated Buffered DI Water

• Buffer Type

• Boron Concentration

• Buffer Concentration

- Water Temperature

• Controlled Room Temp

• Elevated (180°F)

- Fiber Mixture

• Nukon

• Nukon, Temp-Mat, Min Wool, Cocktail

- Approach Velocity

• Prototypical Strainer

- Fabricated from Similar Perforated Plate

• Continuous Filtration

• Performing Jointly with Arkansas Nuclear One

- 3 Different Pocket Geometries

• 400 mm Deep (ANO)

• 200 mm Deep (ANO & CCNPP)

• 100 mm Deep (ANO) 35 Calvert Cliffs Chemical Effects - Plans for Integrated Testing

Future Meetings

• June 2014

- Chemical Effects Autoclave Test Results

• CCNPP-CHLE-007 Alkyds Test

• CCNPP-CHLE-011 Long Term Test

- Final Chemical Effects Screening Test Protocol

• Ready to Launch CCNPP-CHLE-002 Integrated CHLE Tests

- Small-Scale Penetration Test Results

• Ready to Launch Large-Scale Penetration Tests 36 Calvert Cliffs Chemical Effects - Plans for Integrated Testing