ML25183A344
| ML25183A344 | |
| Person / Time | |
|---|---|
| Issue date: | 06/30/2025 |
| From: | Jeffrey Poehler NRC/RES/DE |
| To: | |
| JEFF POEHLER 3014158353 | |
| Shared Package | |
| ML25183A340 | List: |
| References | |
| Download: ML25183A344 (1) | |
Text
1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 A
B C
J K
L M
N O
P Q
R S
T U
V W
X Y
Z AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS Panelist 1 Panelist 2 Panelist 3 Average ImportanceUncertaintyKnowledge ImportanceUncertaintyKnowledge ImportanceUncertaintyKnowledge Recommendation ID title of recommendation Scope, objectives, and/or topic modifications Score Score Score Rationale Score Score Score Rationale Score Score Score Rationale Importanc e (avg)
Uncertaint y (avg)
Knowled ge (avg) error bars Import Uncert. Know error More research could be used to gain knowledge on a topic expected to be important to safety More research could reduce uncertainty and clarify topic importance More research could improve knowledge but topic not expected to be safety significant Topic expected to have safety significance but likely could be addressed without additional research Topic may have safety significance but sufficient knowledge exists to manage Topic not expected to have safety significance and sufficient knowledge exists H/M/L H/M/L K/PK/UK H/M/L H/M/L K/PK/UK H/M/L H/M/L K/PK/UK EIM-1 Improve visual inspections and leverage innovative NDE techniques to detect degradation mechanisms and aging effects.
M M
PK Visual inspections alone may miss early or hidden concrete degradation. Integrating innovative NDE techniques in high-risk areas through a risk-informed approach enhances detection while balancing cost and effort.
H L
K challenging environments has been accomplished in space exploration. Application of that technology to nuclear fleet is possible. Based on OPEX critical plant locations for machine visual inspections could be identified and H
M PK NDE techniques are improving.
In many situations, visual inspection may not be effective in timely detection of degradation.
2.7 1.7 1.7 0.277778 2.6667 1.6667 1.6817 0.277778 1
2 1
1 2
EIM-2 Develop and enhance Aging Management Programs (AMPs) for elastomers in civil structures and for coastal environments. (from IAEA)
H M
PK Coastal environment has largely impact on corrosion of steel elements.
L L
K Chemistry research is needed.
The proposed research could be viewed as the low hanging fruit. Ranking is set accordingly.
H M
PK IAEA 2.3 1.7 1.7 0.277778 2.3333 1.6667 1.6667 0.277778 2
2 3
3 2
EIM-3 Integrate advanced technologies like sensors, AI, robotics, drones, laser measurements, building information models (BIM) etc. for efficient inspections, improved safety for personnel, better access, and data management.
H M
PK Visual inspections at high elevations and hard-to-access areas are often ineffective in current aging management programs. Integrating technologies such as AI, robotics, drones, and BIM enhances inspection efficiency, improves safety, and enables better access to these challenging locations.
H M
K Resource intensive but doable.
Individual tools and components are known but their integration may be problematic. In case of structures, add integration to computational mechanics to identify critical structural areas.
Programmed info into robotics/drones could H
L PK Plant modernization, improved personnel safety, increased efficiency. Inspection cost may increase initially but it may save expensive repair, plant outage, or even shut down.
3.0 1.7 1.7 0.277778 2.9700 1.6667 1.6367 0.277778 3
EIM-4 Implement enhanced mitigation technologies, such as cathodic protection systems, drones, and remote monitoring methods.
M M
UK Cathodic protection is rarely used in U.S. nuclear plant concrete structures due to implementation and regulatory challenges, but its potential to prevent corrosion makes it worth evaluating for long-term operation.
H L
K This in part has been developed and implemented.
The proposed research could be viewed as the low hanging fruit. Ranking is set accordingly.
H M
PK Use of proven methods including newer technologies will make monitoring safer and more cost efficient.
2.7 1.7 2.0 0.277778 2.6667 1.6667 2.0150 0.277778 4
EIM-5 Create databases to track degradation trends over time and develop novel techniques for inspecting inaccessible areas.
M L
PK Creating databases to track degradation trends over time enables better prediction and management of aging effects, while developing novel techniques for inspecting inaccessible areas improves early detection and supports safe, long-term operation H
L PK Integrated databases within fleets and specific industry organizations exist. Such databases function to improve industry performance.
However, developing novel techniques beyond those that are currently used (to inspect H
L PK Overcome difficulties of inspection of inaccessible or hard to access areas.
2.7 1.0 2.0 0.166667 2.6667 1.0000 1.9850 0.166667 5
EIM-1 EIM-2 EIM-3 EIM-4 EIM-5 1
3 2
2 Importance Knowledge Session 8 - Civil Structures, Concrete and Components - Enhance Inspection and Monitoring (EIM)
High Low Known Unknown