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Predicting Wear: How to use Pass 2 Analysis

February 18, 2021/in BOP Blog Series, Engineering, Thermal Performance, Nuclear, Blog /by Sunny Demattio

The documentation of a Pass 2 Analysis can have a wide range in levels of formality, but should include:

  1. A table of all inspections in the model including whether or not the inspection is included in the run calibration and, if not, the reason for exclusion.
  2. A section to document any changes to WRA Run Definitions, including moving lines from one run into another or a change in Analysis Method.
  3. Documentation with the following information for each run (Table form works best for comparison between runs):

• Number of inspections used for calibration
• LCF
• Number of Parallel Trains Inspected vs. Total Number of Parallel Trains
• Ranking of Very Good, Good, Moderate, or Poor for Parallel Train Coverage
• Number of Geometry Types Inspected vs. Total Number of Geometry Types
• Ranking of Very Good, Good, Moderate, or Poor for Geometry Coverage
• Ranking of Very Good, Good, Moderate, or Poor for Inspection Correlation
• Whether or not a run can be considered calibrated
• For calibrated runs, comment on any of the above fields that do not meet calibration criteria and why the run can still be considered calibrated.
• For non-calibrated runs, comment on why the run is not calibrated and what measures are required for calibration.

Additionally, it’s useful to include:

• The figure of merit calculation for run correlation for comparison with CHUG Position Paper No. 17
• Total number of Control Valves Inspected vs. Total number of Control Valves in the run
• Total number of Orifices Inspected vs. Total number of Orifices in the run
• A list of all components with a low or negative predicted Time to Tcrit documenting whether or not the component is to be inspected at the next outage and why

To learn more about using Pass 2 Analysis and calibration rates, talk with the experts at GSE TrueNorth or visit  https://www.gses.com/balance-of-plant-bop/

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https://www.gses.com/wp-content/uploads/2021/02/BOPBlogSeries-Square_600x600.jpg 600 600 Sunny Demattio https://www.gses.com/wp-content/uploads/2019/11/GSE-Solutions_tag-300x94.png Sunny Demattio2021-02-18 12:35:252021-02-19 08:29:27Predicting Wear: How to use Pass 2 Analysis

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