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| Date post: | 27-May-2015 |
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Technology |
| Upload: | gse-systems-inc |
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Post-Fukushima Drivers of Severe Accident Simulation
FLEX
NTTF
RMRF
B.5.b
IRM
ASME NSC
HD simulator
Desktop & full-scope
Classroom
Training
Site drills/ exercises
Safety analysis
V&V
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What Does the Industry Need?
• A single tool for: – Safety analysis, emergency planning, technical support
and training organizations – Desktop, classroom, and full-scope simulators – Multi-unit site scenarios from normal operations to
EOP, SAMG and EDMG – Ease of coupling with plant desired codes, such as dose
• An essential tool to meet regulatory requirements (e.g., NTTF) in post-Fukushima
• Reducing costs and risks with intuitive tool set to facilitate training, drills/exercises, analysis, and V&V
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Tier 1 NTTF Recommendations
• 2.1 - Seismic and flood hazard reevaluations • 2.3 - Seismic and flood walk downs
• 4.1 - Station blackout (SBO) regulatory actions • 4.2 - Equipment covered under Title 10 of the Code of
Federal Regulations (10 CFR) 50.54(hh)(2)
• 5.1 - Reliable hardened vents for Mark I and Mark II containments
• 7.1 - SFP instrumentation • 8 - Strengthening and integration of emergency operating
procedures, severe accident management guidelines (SAMGs), and extensive damage mitigation guidelines
• 9.3 - Emergency preparedness regulatory actions (staffing and communications)
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Tier 3 NTTF Recommendations
• 9.1/9.2 - Emergency preparedness (EP) enhancements for prolonged SBO and multiunit events (dependent on availability of critical skill sets)
• 9.3 - ERDS capability (related to long-term evaluation Recommendation 10)
• 10 - Additional EP topics for prolonged SBO and multi-unit events (long-term evaluation)
• 11 - EP topics for decision making, radiation monitoring, and public education (long term evaluation)
• 12.1 – Reactor oversight process modifications to reflect the recommended defense in-depth framework (dependent on recommendation 1)
• 12.2 - Staff training on severe accidents and resident inspector training on SAMGs (dependent on recommendation 8)
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Desktop Simulator
Technology
• PSA-HD (MAAP code)
• Interactive GUI • Simulates most
important systems & scenarios (RCS/SG/Cont./Aux Blvd./SFP/Dose)
Applications
• Classroom training
• Computer-based training (graphical and text procedures)
• Engineering analysis
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Unit 2
containment MAAP5
RCS
MAAP5
SG
MAAP5
Core
Unit 1
containment MAAP5
RCS
MAAP5
SG
MAAP5
Core
In-plant DOSE simulation
In-plant DOSE simulation
Ex-plant DOSE simulation
MAAP5
Auxiliary building MAAP5
Spent fuel pool
Demo on a 2-unit plant of Westinghouse 4-loop PWR
PSA-HD: Desktop Simulation
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Full-Scope Simulator
Technology
• PSA-HD integrated in FSS
• Enhanced simulator models as needed
• Integrated EOPs, SAMGs & EDMGs
Applications
• Plant site drills and exercises involving TSC, OSC, EOF
• Performance evaluation
• Operator training
• Realistic V&V and analysis
9 A Demo on a 2-Unit Plant of Westinghouse 4-Loop PWR
PSA-HD: Full-Scope Simulator
Unit 2
containment MAAP5
RCS TH
code/ MAAP5
SG
TH code/ MAAP5
Core S3R
Unit 1
containment MAAP5
RCS TH
Code/ MAAP5
SG
TH Code/ MAAP5
Core S3R
In-plant DOSE simulation
In-plant DOSE simulation
Ex-plant DOSE Simulation
MAAP5
BOP JTopMeret
Auxiliary building MAAP5
Spent fuel pool
I&C JControl
Electrical system JElectric
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GSE HD Parallel Architecture
JADE Operation Station DCS-Like HMI
animation, Soft panels,
Interface simulation control
HD server 1 for MAAP5
Unit 1
HD server 2 for MAAP5
Unit 2
HD server 3 for MAAP5
Unit 3
JADE Dashboard (JDB) HD server,
Graphical user interface, interactive control,
monitor, V&V
HD Client
HD server # for MAAP5
Unit #
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Reactor Core Performance
UNIT 1 UNIT 2
Time 4H:2M:56S
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Fukushima Unit 3 at 76 Hours
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Off-site Radiological Dose
Time 6:20:06
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SBT in PSA-HD (SAMGs)
SBT is a computer-based procedure that helps automate the SAMG to control the sequence of events in PSA-HD simulation.
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Analysis/V&V Tool
reference data
simulator data
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PSA-HD Sample Configuration
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Key Points
• Need to work with PRA and EP groups – PRA group has MAAP Models (this is the standard) – EP need these tools first and are developing responses to the
Recommendations (Flex, SAMG) – Model is important – Then training
• May not need full-scope integration – Start with single unit desktop (include Flex, etc.) – Then expand to multi-unit/site model with fuel pool, etc. – Use for validating updated procedures (demonstrate
effectiveness) – Expand interface for training of decision makers and
stakeholders – Then maybe integrate with full-scope simulator
• All desktop work is applicable so investment is not lost
For more information: Go to: www.GSES.com
Call: 800.638.7912
Email: [email protected]
Follow us on: Twitter @GSESystems
Facebook.com/GSESystems
