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A NEW STANDARD IN METEOROLOGICAL MONITORING SYSTEMS INSTALLED AT THE PERRY NUCLEAR POWER PLANT Jim Holian (SAIC) and J

A NEW STANDARD IN METEOROLOGICAL MONITORING SYSTEMS INSTALLED AT THE PERRY NUCLEAR POWER PLANT Jim Holian (SAIC) and Jamie Balstad (First Energy Corp). Meteorological Parameters. Meteorological Parameters. Systems A and B 10 and 60 meter wind speed and direction Delta-t (60m-10m)

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A NEW STANDARD IN METEOROLOGICAL MONITORING SYSTEMS INSTALLED AT THE PERRY NUCLEAR POWER PLANT Jim Holian (SAIC) and J

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  1. A NEW STANDARD IN METEOROLOGICALMONITORING SYSTEMS INSTALLED AT THEPERRY NUCLEAR POWER PLANTJim Holian (SAIC) and Jamie Balstad (First Energy Corp)

  2. Meteorological Parameters

  3. Meteorological Parameters Systems A and B • 10 and 60 meter wind speed and direction • Delta-t (60m-10m) • 10 meter temperature

  4. Meteorological Parameters Systems A and B • 10 and 60 meter wind speed and direction • Delta-t (60m-10m) • 10 meter temperature System A only • 10 meter dew point • Station Pressure • Precipitation

  5. Design Basis

  6. Design Basis • Two Beers

  7. Design Basis • Two Beers • Validation without elimination

  8. Design Basis • Two Beers • Validation without elimination • Reduce false 9 out of data

  9. Design Basis • Two Beers • Validation without elimination • Reduce false 9 out of data • Include onsite conditions/climatology

  10. Design Basis (continued) • Produce a valid data set that is the “best of”

  11. Design Basis (continued) • Produce a valid data set that is the “best of” • Reduce manual labor

  12. Design Basis (continued) • Produce a valid data set that is the “best of” • Reduce manual labor • Decrease maintenance costs

  13. Design Basis (continued) • Produce a valid data set that is the “best of” • Reduce manual labor • Decrease maintenance costs • Independently shut down individual sensors

  14. Site-Specific Software

  15. Site-Specific Software • Detects the presence of wind direction shear between tower levels

  16. Site-Specific Software • Detects the presence of wind direction shear between tower levels • Identifies differences in the data attributable to tower interference

  17. Site-Specific Software • Detects the presence of wind direction shear between tower levels • Identifies differences in the data attributable to tower interference • Recognizes light and variable winds

  18. Site-Specific Software • Detects the presence of wind direction shear between tower levels • Identifies differences in the data attributable to tower interference • Recognizes light and variable winds • Identifies wind speed cup/threshold problems before they become obvious

  19. Recognizes delta-t differences attributed to sunrise/sunset/precipitation onset Site-Specific Software (cont’d)

  20. Recognizes delta-t differences attributed to sunrise/sunset/precipitation onset Identifies aspirator trips/fluctuations Site-Specific Software (cont’d)

  21. Recognizes delta-t differences attributed to sunrise/sunset/precipitation onset Identifies aspirator trips/fluctuations Identifies problems associated with temperature/dew point/precipitation interactions Site-Specific Software (cont’d)

  22. Recognizes delta-t differences attributed to sunrise/sunset/precipitation onset Identifies aspirator trips/fluctuations Identifies problems associated with temperature/dew point/precipitation interactions Ability to turn off any sensor remotely Site-Specific Software (cont’d)

  23. PNPP Site Evaluation Criteria MAX WIND SPEED DIFFERENCE BETWEEN SYSTEMS A/B 3 MPH MAX WIND SPEED DIFFERENCE 10-60 METER 10 MPH MIN WD WHERE TOWER IMPACTS WIND SPEED - A 75 DEG. MAX WD WHERE TOWER IMPACTS WIND SPEED - A 100 DEG. MIN WD WHERE TOWER IMPACTS WIND SPEED - B 100 DEG. MAX WD WHERE TOWER IMPACTS WIND SPEED - B 115 DEG. WD WHERE TOWER IMPACTS BOTH A/B WIND SPEEDS 100 DEG.

  24. PNPP Site Evaluation Criteria MAX WIND SPEED DIFFERENCE BETWEEN SYSTEMS A/B 3 MPH MAX WIND SPEED DIFFERENCE 10-60 METER 10 MPH MIN WD WHERE TOWER IMPACTS WIND SPEED - A 75 DEG. MAX WD WHERE TOWER IMPACTS WIND SPEED - A 100 DEG. MIN WD WHERE TOWER IMPACTS WIND SPEED - B 100 DEG. MAX WD WHERE TOWER IMPACTS WIND SPEED - B 115 DEG. WD WHERE TOWER IMPACTS BOTH A/B WIND SPEEDS 100 DEG.

  25. PNPP Site Evaluation Criteria MAX WIND SPEED DIFFERENCE BETWEEN SYSTEMS A/B 3 MPH MAX WIND SPEED DIFFERENCE 10-60 METER 10 MPH MIN WD WHERE TOWER IMPACTS WIND SPEED - A 75 DEG. MAX WD WHERE TOWER IMPACTS WIND SPEED - A 100 DEG. MIN WD WHERE TOWER IMPACTS WIND SPEED - B 100 DEG. MAX WD WHERE TOWER IMPACTS WIND SPEED - B 115 DEG. WD WHERE TOWER IMPACTS BOTH A/B WIND SPEEDS 100 DEG.

  26. PNPP Site Evaluation Criteria MAX WIND SPEED DIFFERENCE BETWEEN SYSTEMS A/B 3 MPH MAX WIND SPEED DIFFERENCE 10-60 METER 10 MPH MIN WD WHERE TOWER IMPACTS WIND SPEED - A 75 DEG. MAX WD WHERE TOWER IMPACTS WIND SPEED - A 100 DEG. MIN WD WHERE TOWER IMPACTS WIND SPEED - B 100 DEG. MAX WD WHERE TOWER IMPACTS WIND SPEED - B 115 DEG. WD WHERE TOWER IMPACTS BOTH A/B WIND SPEEDS 100 DEG.

  27. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE WIND SPEED 98 MPH MINIMUM ALLOWABLE WIND SPEED -0.1 MPH MIN WIND SPEED FOR WD VALIDATION 3 MPH MAX WIND DIRECTION DIFFERENCE A/B 15 DEG. MAX WIND DIRECTION DIFFERENCE 10-60 M 30 DEG. MIN WD WHERE TOWER IMPACTS DIRECTION - A 60 DEG. MAX WD WHERE TOWER IMPACTS DIRECTION - A 80 DEG. MIN WD WHERE TOWER IMPACTS DIRECTION - B 80 DEG. MAX WD WHERE TOWER IMPACTS DIRECTION- B 110 DEG. WD WHERE TOWER IMPACTS BOTH A/B DIRECTIONS 80 DEG.

  28. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE WIND SPEED 98 MPH MINIMUM ALLOWABLE WIND SPEED -0.1 MPH MIN WIND SPEED FOR WD VALIDATION 3 MPH MAX WIND DIRECTION DIFFERENCE A/B 15 DEG. MAX WIND DIRECTION DIFFERENCE 10-60 M 30 DEG. MIN WD WHERE TOWER IMPACTS DIRECTION - A 60 DEG. MAX WD WHERE TOWER IMPACTS DIRECTION - A 80 DEG. MIN WD WHERE TOWER IMPACTS DIRECTION - B 80 DEG. MAX WD WHERE TOWER IMPACTS DIRECTION- B 110 DEG. WD WHERE TOWER IMPACTS BOTH A/B DIRECTIONS 80 DEG.

  29. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE WIND SPEED 98 MPH MINIMUM ALLOWABLE WIND SPEED -0.1 MPH MIN WIND SPEED FOR WD VALIDATION 3 MPH MAX WIND DIRECTION DIFFERENCE A/B 15 DEG. MAX WIND DIRECTION DIFFERENCE 10-60 M 30 DEG. MIN WD WHERE TOWER IMPACTS DIRECTION - A 60 DEG. MAX WD WHERE TOWER IMPACTS DIRECTION - A 80 DEG. MIN WD WHERE TOWER IMPACTS DIRECTION - B 80 DEG. MAX WD WHERE TOWER IMPACTS DIRECTION- B 110 DEG. WD WHERE TOWER IMPACTS BOTH A/B DIRECTIONS 80 DEG.

  30. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE WIND SPEED 98 MPH MINIMUM ALLOWABLE WIND SPEED -0.1 MPH MIN WIND SPEED FOR WD VALIDATION 3 MPH MAX WIND DIRECTION DIFFERENCE A/B 15 DEG. MAX WIND DIRECTION DIFFERENCE 10-60 M 30 DEG. MIN WD WHERE TOWER IMPACTS DIRECTION - A 60 DEG. MAX WD WHERE TOWER IMPACTS DIRECTION - A 80 DEG. MIN WD WHERE TOWER IMPACTS DIRECTION - B 80 DEG. MAX WD WHERE TOWER IMPACTS DIRECTION- B 110 DEG. WD WHERE TOWER IMPACTS BOTH A/B DIRECTIONS 80 DEG.

  31. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE WIND DIRECTION 361 DEG. MINIMUM ALLOWABLE WIND DIRECTION -0.1 DEG. MAX SIGMA THETA DIFFERENCE A/B 10 DEG. MAX DIFFERENCE IN DELTA T A/B 1 °F BOTH 10/60 METER ASPIRATORS OK 4.6 VOLTS 60-METER ASPIRATOR HAS FAILED 4.2 VOLTS 10-METER ASPIRATOR HAS FAILED 3.8 VOLTS BOTH 10/60 METER ASPIRATORS FAILED 3.45 VOLTS MAX AMBIENT TEMP DIFFERENCE A/B 1.2 °F

  32. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE WIND DIRECTION 361 DEG. MINIMUM ALLOWABLE WIND DIRECTION -0.1 DEG. MAX SIGMA THETA DIFFERENCE A/B 10 DEG. MAX DIFFERENCE IN DELTA T A/B 1 °F BOTH 10/60 METER ASPIRATORS OK 4.6 VOLTS 60-METER ASPIRATOR HAS FAILED 4.2 VOLTS 10-METER ASPIRATOR HAS FAILED 3.8 VOLTS BOTH 10/60 METER ASPIRATORS FAILED 3.45 VOLTS MAX AMBIENT TEMP DIFFERENCE A/B 1.2 °F

  33. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE TEMPERATURE 110 °F MINIMUM ALLOWABLE TEMPERATURE -30 °F MAXIMUM ALLOWABLE DEWPOINT 82 °F MINIMUM ALLOWABLE DEWPOINT -30 °F MAX DEW POINT EXCEEDING TEMPERATURE 1.8 °F MAX DIFFERENCE CURRENT/PREVIOUS 15-MIN RAIN 0.99 IN. MAX TEMPERATURE-DEWPOINT SPREAD W/RAIN 10 DEG. MINIMUM ALLOWABLE PRECIPITATION -0.1 IN. MAX ALLOWABLE 15-MINUTE PRECIPITATION 1.00 IN.

  34. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE TEMPERATURE 110 °F MINIMUM ALLOWABLE TEMPERATURE -30 °F MAXIMUM ALLOWABLE DEWPOINT 82 °F MINIMUM ALLOWABLE DEWPOINT -30 °F MAX DEW POINT EXCEEDING TEMPERATURE 1.8 °F MAX DIFFERENCE CURRENT/PREVIOUS 15-MIN RAIN 0.99 IN. MAX TEMPERATURE-DEWPOINT SPREAD W/RAIN 10 DEG. MINIMUM ALLOWABLE PRECIPITATION -0.1 IN. MAX ALLOWABLE 15-MINUTE PRECIPITATION 1.00 IN.

  35. PNPP Site Evaluation Criteria (cont’d) MAXIMUM ALLOWABLE TEMPERATURE 110 °F MINIMUM ALLOWABLE TEMPERATURE -30 °F MAXIMUM ALLOWABLE DEWPOINT 82 °F MINIMUM ALLOWABLE DEWPOINT -30 °F MAX DEW POINT EXCEEDING TEMPERATURE 1.8 °F MAX DIFFERENCE CURRENT/PREVIOUS 15-MIN RAIN 0.99 IN. MAX TEMPERATURE-DEWPOINT SPREAD W/RAIN 10 DEG. MINIMUM ALLOWABLE PRECIPITATION -0.1 IN. MAX ALLOWABLE 15-MINUTE PRECIPITATION 1.00 IN.

  36. PNPP Site Evaluation Criteria (cont’d) MAX ALLOWABLE STATION PRESSURE 30.75 IN/HG MIN ALLOWABLE STATION PRESSURE 27.75 IN/HG MAX 15-MINUTE PRESSURE CHANGE 0.2 IN/HG MAXIMUM ALLOWABLE DELTA-T 15.0 DEG. MINIMUM ALLOWABLE DELTA-T -6.0 DEG. DEWPOINT ASPIRATOR HAS FAILED 3.25 VOLTS DEW POINT & 60 METER ASPIRATOR FAILED 2.95 VOLTS DEW POINT & 10 METER ASPIRATOR FAILED 2.75 VOLTS ALL ASPIRATORS FAILED 2.58 VOLTS

  37. Wind Direction Sensor Algorithm For both levels If neither wind speed reading is obtained from front-end processor set valid value to the bad wind speed value and set flag to 9 If both wind speeds were “off” or “out of range” set valid value to the bad wind speed value and set flag to 9 If one wind speed was “off” or “out of range” set valid value to good measurement and set flag to 5 if using Train A or 6 if using Train B If both wind speeds are a “stuck” value for last 12 15-minute periods set valid value to the bad wind speed value and set flag to 8 If only one current wind speed is a “stuck” value for last 12 15-min periods set valid value to the other train and set flag to 7

  38. Validity Flags 0 Normal data validation. Using System A 1 Secondary validation required, using System A. For dew point the freeze-point was converted to dew point, or dew point slightly above the temperature and has been set to the temperature. 2 Secondary validation required, using System B 3 Used only for delta-t and temperature: one aspirator failed. Using the other system sensor.

  39. Validity Flags (continued) • Using System A Data. Validation exceed criteria because:  • Both System A and B wind directions were blowing through the tower. • Secondary validation detected direction change with height greater than 30 degrees. • Wind speed below light wind limit or wind speed less than predetermined criteria. • Delta-t differences occurred during sunrise/sunset

  40. Validity Flags (continued) 5/6 No Validation. Problem detected with System B/A sensor (turned “off” or problem with time/date stamp or reading data logger file) using System A/B 7 Ambient Temperature/Delta-T --Both aspirators off, results could be affected Dew point --possible “stuck” sensor (samereading for 5 readings) Precipitation --Difference between temperature and dew point greater than 10 F. Wind Speed --One sensor at same level is “stuck” (same reading for 13 readings) Pressure --possible “stuck” sensor (same reading for 5 readings).

  41. Validity Flags (continued) 8 Failed all validation checks. System A values passed if possible. Dew point exceeded temperature by greater than allowable criteria. Dew point reset to temperature. Wind Speed --Both sensors at same level are “stuck” (same reading for 13 readings) 9 No data obtained from either data logger or all similar sensors on same level turned “off”

  42. Validity Flags Summary

  43. Validity Flags Summary 0-3 Good data, best of both Systems A and B

  44. Validity Flags Summary 0-3 Good data, best of both Systems A and B 4-6 Requires closer review because system validation was limited or non-existent

  45. Validity Flags Summary 0-3 Good data, best of both Systems A and B 4-6 Requires closer review because system validation was limited or non-existent 7-8 Requires intense scrutiny because data failed system validation

  46. Validity Flags Summary 0-3 Good data, best of both Systems A and B 4-6 Requires closer review because system validation was limited or non-existent 7-8 Requires intense scrutiny because data failed system validation 9 Bad or missing data

  47. PNPP Hourly Data • 00100418 3.8 12. 35.9 6.1 18. 16.5-0.8 59.0 53.829.350.00 00010000000 • 00100419 4.2 52. 14.1 6.7 45. 10.7-0.6 58.8 53.429.350.00 00010000000 • 00100420 3.0 72. 9.6 0.6 71. 3.6 0.9 56.7 52.829.340.00 02022000000 • 00100421 2.3 74. 10.9 0.6 74. 4.2 1.4 56.1 52.729.350.00 02022000000 • 00100422 1.4117. 37.8 0.6 97. 3.6 1.6 55.5 52.729.360.00 00021000000 • 00100423 2.6109. 24.2 0.9117. 4.6 2.0 54.7 52.729.360.00 11020000000 • 00100424 1.8 95. 20.3 0.9119. 2.2 1.9 54.5 52.529.360.00 21024000000 • 00100501 2.3110. 17.5 1.0125. 4.0 1.8 54.3 52.629.370.00 11020000000 • 00100502 4.0139. 14.2 0.8146. 4.1 0.5 55.6 52.929.380.00 00020000000 • 00100503 2.5 92. 12.4 0.9122. 3.4 1.0 55.0 52.429.370.00 21024000000 • 00100504 2.4 76. 23.1 8.3101. 5.6 1.2 54.3 52.029.360.00 22011000000 • 00100505 4.1107. 16.5 9.7106. 6.8 0.3 54.7 51.829.340.01 11011000000

  48. PNPP Hourly Data • 00100418 3.8 12. 35.9 6.1 18. 16.5-0.8 59.0 53.829.350.00 00010000000 • 00100419 4.2 52. 14.1 6.7 45. 10.7-0.6 58.8 53.429.350.00 00010000000 • 00100420 3.0 72. 9.6 0.6 71. 3.6 0.9 56.7 52.829.340.00 02022000000 • 00100421 2.3 74. 10.9 0.6 74. 4.2 1.4 56.1 52.729.350.00 02022000000 • 00100422 1.4117. 37.8 0.6 97. 3.6 1.6 55.5 52.729.360.00 00021000000 • 00100423 2.6109. 24.2 0.9117. 4.6 2.0 54.7 52.729.360.00 11020000000 • 00100424 1.8 95. 20.3 0.9119. 2.2 1.9 54.5 52.529.360.00 21024000000 • 00100501 2.3110. 17.5 1.0125. 4.0 1.8 54.3 52.629.370.00 11020000000 • 00100502 4.0139. 14.2 0.8146. 4.1 0.5 55.6 52.929.380.00 00020000000 • 00100503 2.5 92. 12.4 0.9122. 3.4 1.0 55.0 52.429.370.00 21024000000 • 00100504 2.4 76. 23.1 8.3101. 5.6 1.2 54.3 52.029.360.00 22011000000 • 00100505 4.1107. 16.5 9.7106. 6.8 0.3 54.7 51.829.340.01 11011000000

  49. PNPP Hourly Data • 00100418 3.812.35.9 6.118.16.5-0.859.053.829.350.00 00010000000 • 00100419 4.252. 14.1 6.745.10.7-0.658.853.429.350.00 00010000000 • 00100420 3.072. 9.6 0.671. 3.6 0.956.752.829.340.00 02022000000 • 00100421 2.374.10.9 0.674. 4.2 1.456.152.729.350.00 02022000000 • 00100422 1.4117.37.8 0.697. 3.6 1.655.552.729.360.00 00021000000 • 00100423 2.6109.24.2 0.9117. 4.6 2.054.752.729.360.00 11020000000 • 00100424 1.895.20.3 0.9119. 2.2 1.954.552.529.360.00 21024000000 • 00100501 2.3110. 17.5 1.0125. 4.0 1.854.352.629.370.00 11020000000 • 00100502 4.0139.14.2 0.8146. 4.1 0.555.652.929.380.00 00020000000 • 00100503 2.592.12.4 0.9122. 3.4 1.055.052.429.370.00 21024000000 • 00100504 2.476.23.1 8.3101. 5.6 1.254.352.029.360.00 22011000000 • 00100505 4.1107.16.5 9.7106. 6.8 0.354.751.829.340.01 11011000000

  50. PNPP System Performance

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