A Treasure is Hidden in Every Nuclear Power Plant AMS Corporation Duplication Prohibited Slide 2

Transcription

1 H.M. Hashemian 1

2 A Treasure is Hidden in Every Nuclear Power Plant What is it? Where is it? How to get to it? Slide 2

3 What Can We Do With It? Slide 3

4 What Happens When You Go To The Doctor Slide 4

5 Diagnostics and Corrective Action Calibration Feeling Good Normal Back at Work Slide 5

6 Predictive Maintenance Radiography Vibration Analysis Oil Analysis (tribology) Slide 6

7 Prognostics Slide 7

8 What is the Treasure? 2010 AMS Corporation Duplication Prohibited Slide 8

9 Where is it? In-Core Thermocouples P P P P L L L Ex-core Neutron Detectors P P P U LW A W W F F L L L RX NR NR NR WR SG L L L L F Reactor Level Sensors NR WR F F F F P F Slide 9

10 How to Get It? ensor Output Se Time (sec) Flow Time Slide 10

11 Sensing Line Blockages Can Be Dangerous (OLM Can Help) 1.E+02 1.E+01 Cleared Pressure Transmitter Sensing Line 1.E+00 PSD 1.E-01 1.E-02 Blocked Pressure Transmitter Sensing Line Partially Blocked 1.E-03 1E-04 1.E Frequency (Hz) Completely Blocked 2010 AMS Corporation Duplication Prohibited Slide 11

12 Venturi Fouling is Detectable and Quantifiable by OLM 103 Indicated Power Reacto or Power (%) Actual Power Venturi Fouling Can Waste Nearly 2% of the Reactor Power Time (Days at Full Power) Venturi Fouling Slide 12

13 BWR Stability Measurements Susquehanna NPP Stable Unstable Limit Cycle Slide 13

14 Instrument Tube Vibration in BWRs In-Core Instrument Tube Fuel Box PIC CDS003A Instrument Tube (~3Hz) Fuel Box (~5Hz) Before Plugging CO OHERENCE After Plugging 0.2 Bypass Cooling Core Support Plate FREQUENCY (Hz) Slide 14

15 Core Barrel Vibration (Deviation From Mean) % Power Hz Related to Core Barrel Motion Low Frequency Signal That Caused Alarms 7.0 Time (sec) 8.0 NOISE Core Barrel CORE Reactor Vessel Thermal Shield Reactor Vessel Core Barrel Slide 15

16 Results of The Testing Slide 16

17 What if There are No Existing Sensors for Condition Monitoring? (Install Wireless Sensors ) Surveillance Schedule Database Equipment Condition Monitoring Database WRLSS Access Point and Antenna Data Acquisition iti and Analysis Workstation Motor Access Point Wired Plant Network Plant Computer Local Workstation Transmitter Surveillance Data and Acceptance Criteria Database Pump crio Temporary or Permanent Instrumentation Pump Room 2.4 GHz RF Spectrum Motor Pump Motor Fan Room Cooling System Plant System Slide 17

18 Wireless Monitoring System - ASME Section XI (Safety Related) (DOE Project at Comanche Peak Nuclear Power Plant, Texas) Containment Spray Containment Spray Centrifugal Charging Centrifugal Charging Safety Injection Safety Injection Residual Heat Removal Residual Heat Removal Component Cooling Water Station Service Water Component Cooling Water Slide 18

19 Recent DOE Research Award (Phase III) In-Containment Application of Wireless Technology for Online Condition Monitoring Slide 19

20 Wireless Data Collection System Implemented at Comanche Peak Nuclear Power Plant Under DOE Project Auxiliary Feedwater Pump Heater Drain Pump Motor AMS Accelerometer Heater Drain Pump Existing Triax Accelerometer Wireless Data Collection System Existing Wireless Accelerometer AMS Accelerometer Slide 20

21 Do Not Forget Cables and Connectors Containment (Harsh Environment) Control Room Area (Mild Environment) Process Cables I&C Cabinets (Analog or Digital) Temperature Sensor Cables Pressure Transmitter Penetration ~150 meters Slide 21

22 Recent Cable Connector Problem Added Two Weeks to the Outage of U.S. Nuclear Power Station Slide 22

23 Melted Insulation Results in Forced Shutdown of U.S. Nuclear Power Station Slide 23

24 How to Identify and Locate Problems in Cables 0.6 Thermocouple Lead Wires (High - Low) TT22 TT17 KK115B Shield to Ground TT22 TT17 KK115B-02 Rho 0.3 Rho Distance (Feet) Distance (Feet) 0.4 Lead to Shield + KK115B Lead to Shield - KK115B-04 Rho 0 Rho 0 TT22 TT17 TT22 TT Distance (Feet) Distance (Feet) Slide 24

25 DOE Holistic Cable Condition Monitoring Project 100Hz KDL300A-01 8 Capacita ance (10^-10) 4 Dry Wet Laboratory Research 0 Cable 3 Cable 4 Cable 5 Dissipation i i 100Hz KDL300A Dissipation Factor (10 0^-2) Dry Wet 0.00 Cable 3 Cable 4 Cable 5 Slide 25

26 Development of MicroSensors for Cable Condition Monitoring (DOE Project Jointly Performed by AMS and PAC: Ken Watkins) AGE ALERT TM Microsensor Slide 26

27 Holistic Cable Diagnostic System CABLE Test Lead Compensation User Interface Data Qualification Default Equipment Settings 0.30 Statistical Analysis 0.25 Response Time (sec) Transmitters Test Data Acquisition TDR LCR IR FDR RTDR Cable Testing Database Historical Data Trending Data Review Report Generation Data Storage Similar Equipment Data Comparison Slide 27

28 DOE SBIR PROJECTS On-line Monitoring of Accuracy and Reliability of Instrumentation and Health Phase II+ of Nuclear Power Plants Wireless Sensors for Equipment Health and Condition Monitoring in Phase II+ Nuclear Power Plants Wireless Sensors for Predictive Maintenance of Rotating Equipment in Phase II DOE s Research Reactors Advanced Techniques for On-Line Condition Monitoring and Diagnostics of Phase II Digital Rod Position Indication Systems A Holistic Approach for In-Situ Cable Condition Monitoring Phase I Prognostic Methodologies for Condition Assessment and Predictive Phase I Maintenance of Power Plant Systems, Structures and Components Online Monitoring for BWRs Phase III In-Containment Application of Wireless Technology Phase III Slide 28

29 DRPI Diagnostic System Block Diagram ROD DRPI Coil Signals Communication Link crio DRPI Diagnostic Display Switch Controller PXI Master Controller Slide 29

30 ATR at a Glance ATR is launching a Life Extension Program (LEP) as well as a Reliability Centered Maintenance (RCM) program to improve reliability of rotating machinery and I&C systems 4RTD RTDs and 1 Pressure XMTR Per Outlet Reactor Vessel Heat Exchangers RX RTDs PPS 4 RTDs WPC Reactor Coolant Pump PPS PPS WPC: Water Power Calculator PPS: Primary Protection System Slide 30

31 NASA Airspeed SBIR for Indication Fault Detection (Air France Flight Crash En Route from Rio de Janeiro to Paris) 1.00E E E E-01 Airspeed Indicator Vertical Speed Indicator Altimeter PSD (V²/Hz) 1.00E E E E E-06 Fully Open Fully Closed.0135" Cap.026" Cap Pitot Tube Static Port 1.00E , Frequency (Hz) KK040A-01 Pressure Chamber Pitot Heater Switch Drain Opening Alternatet Static Source ity Probabili Fully Open Fully Closed.0135" Cap.026" Cap.038" Cap Deviation Slide 31

32 NASA SBIR for Space Reactor OLM OLM S 1 (%) Time Flow Sensor S 1 Temperature Sensor S 2 Pressure Sensor S 3 Analytical Modeling Techniques Flow Estimate S 1E Temperature Estimate S 2E Pressure Estimate S 3E Residuals S 1 = S 1 S 1E S 2 = S 2 S 2E S 3 = S 3 S 3E S 2 (F) Time S 3 (PSIG) Time Input Layer Mapping Layer Bottleneck Layer Demapping Layer Output Layer S 1 S 1E S 2 S 2E S N S NE Slide 32

33 Conclusions Slide 33