Bringing Engineering Analysis Codes Into Real-Time Full-Scope Simulators

info@gses.com

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I. Full-scope simulator evolution

II. High-definition simulator platform

III. MAAP in full-scope simulators

IV. Support integrated training of NOP, EOP and

SAMGs

Outline

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• Real-time simulators came to the nuclear industry as training tools in the 1970s– Full plant modeled, but models often “hand crafted”– Analog controls, traditional hard-panel control panels

• Today’s nuclear power plant simulator is high fidelity– Same scope, but– High-definition predictive models used to model plant systems– Digital controls and modern HSIs: detailed view of systems

• Today the real-time simulator is an engineering tool– Holistic dynamic plant model

Real-Time Simulator

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• Broad or full-scope plant model– Includes primary, secondary, BOP and safety system and at

least a high-fidelity main loop

• All models integrated and synchronized (coupling)

• One second of problem time = One second of real time (feels like the real plant)

• Models are interactive – Observe and operate like the real plant– Can be integrated with real control systems

Real-Time Simulator

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• Holistic engineering V&V platform− Validation of system design issue in integrated “plant”

• Controls system design and V&V− Validation and refinement of logic and controls strategies as a development tool for new control strategies

• Human factors engineering platform− Support design of DCS interface, alarms, procedures, etc.− Support design of digital control rooms and information layout− Demonstrate viability of these designs to regulator

• Develop and validate operating procedures

• Address post-Fukushima challenges

New Missions of Simulator

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• Running third-party best estimate or safety analysis codes as integral parts of full-scope simulators

• Enforce synchronization between multiple systems through client and server architecture

• Maintain integrity of original code

• Ensure repeatability

• Allow users to have access to model internal memory and variables

• Advanced 2D & 3D visualization interfaces

GSE High-Definition (HD) Platform

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GSE HD Platform Architecture

Output

Input

Client 

 

Simulator Host Executive

(GSE or non-GSE)

HD Client Executive #1

 

 

Server

Client C module

Server input/outputStatus request

Control

Customized plug-in

interface client

Standard HD server

configuration

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Multiple HD Servers

Simulator(GSE or other)Simulator(GSE or other)

HD Client

HD Server #1HD Server #1

HD Server #2HD Server #2

HD Server #3HD Server #3

HD Server #4HD Server #4

BWR Configuration

• Server #1 (CPU #1): RELAP for BWR vessel

• Server #2 (CPU #2): Neutron Kinetics Code (ex. REMARK)

PWR Configuration

• Server #1 (CPU #1): RELAP for primary loops

• Server #2 (CPU #2): RELAP for steam generators

• Server #3 (CPU #3) Neutron kinetics code (ex. REMARK)

SMR Configuration

• Server #1 (CPU #1): RELAP for module #1

• Server #2 (CPU #2): RELAP for module #2

• Server #3 (CPU #3): S3R for module #1

• Server #4 (CPU #4): S3R for module #2

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MAAP

Data-Centric System

MAAP4.06

MAAP4.08

MAAP5.01

MAAP5.02

MAAP5.03

RELAP5-3D

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Graphical SAMGs

Computer-based procedures that help automate the SAMG control the sequence of events in PSA-HD simulation

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V&V Tool

reference data

simulator data

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• Servers may include GSE or third-party models, such as:− GSE’s Topmeret, REMARK

− MAAP5, MAAP4

− INL’s RELAP5-3D v2.4 & v4.0

− Studsvik’s S3R (neutronics) and thermal margin codes

− MELCOR

− SPICE – analog circuit board

− Russian VVER Neutronic modes

• Flexible configuration − Multiple computers

− Multiple processors/cores

− Varied frame rates

Extensible Platform

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RELAP5-HD Installations

Reactor Type Country Status

BWR, GE Japan On-goingPWR, WE United States On-goingPWR, WE United States On-goingPWR, WE United States On-goingSmall Modular Reactor, B&W

United States On-going

PWR, WE United States On-goingCANDU Canada On-goingPWR, RUS Ukraine On-goingNaval Reactor UK On-goingPWR, WE Netherlands On-goingBWR, GE United States RFTSmall Modular Reactor, NuScale

United States RFT

RELAP5-3D requires US DOE export license

Reactor Type Country Status

PWR, WE South Korea RFTPWR, WE South Korea RFTPWR, CE South Korea RFTPWR, WE South Korea RFTPWR, ASEA Germany RFTPWR, ASEA Germany RFTBWR, ASEA Germany RFTPWR, ASEA Germany RFTBWR, ASEA Sweden RFTBWR, ASEA Sweden RFTBWR, ABB Sweden RFTBWR, GE Switzerland RFTPWR, RUS Bulgaria RFTPWR, RUS Ukraine RFTJMTR Japan RFTPWR, WE Japan RFTBWR, GE Japan RFT

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MAAP4 & 5 Installations

Reactor Type Plants, Country StatusBWR, GE K5, Japan MAAP 3.0, 1994

MAAP 4.0, 20133-Loop PWR, WE KTN2, Japan MAAP4, 20064-Loop PWR, WE (ice condenser)

KON1, Japan MAAP4, 2006

BWR, GE TK2, Japan MAAP 3.0, 1998 MAAP 4.0, 2013

BWR, GE 2F2, Japan MAAP3, 2001BWR, GE TS1, Japan

(Same design as 1F1)MAAP3, 1997

4-Loop, PWR, Mitsubishi

TS2, Japan MAAP 3.0, 1998MAAP 4.0, 2013

PWR, WE R2, Sweden MAAP5, on-goingPWR, WE United States MAAP5, on-goingPWR, WE United States MAAP5, on-going

BWR, ASEA Sweden MAAP5, on-going

MAAP code requires US EPRI user license

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GSE First-of-a-Kind Engineering Simulator Experience

Pebble Bed Modular Reactor

IGCC China

Westinghouse AP1000

NuScale Power

Ultra Supercritical Korea

SMART Korea Atomic Energy Research Institute

HYH CPR-1000 HFE and Control V&V Platform

B&WmPowerEngineering and HFESimulator

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• Interface functions• BOP to HD fluid interface (BOP calculates flows)• BOP to HD fluid interface (HD calculates flows)• HD to HD fluid interface (typically only used for U-tube

rupture)• BOP to HD heat structure interface• HD to HD heat structure interface• Core model interface• Miscellaneous control interface• Instrumentation interface• Remote function / Fast time interfaces

HD Interfaces

Standard interfaces and automated

generation

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2-Unit Westinghouse 4-Loop PWR

MAAP5 in Full-Scope Simulator

Unit 2Containment

MAAP5

RCS TH Code/MAAP5

SG

TH Code/MAAP5

CoreS3R

Unit 1Containment

MAAP5

RCS TH Code/MAAP5

SG

TH Code/ MAAP5

CoreS3R

In-plant DOSE simulation

In-plant DOSE simulation

Ex-plant DOSE Simulation

MAAP5

BOPJTopMeret

Auxiliary BuildingMAAP5

Spent Fuel Pool

I&CJControl

Electrical SystemJElectric

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MAAP5 in Full-Scope Simulator

Timeline 0 Min. ~60 Min.3 Hrs. 20

Min.5 Hrs. 30

Min.

Scenario Steady-stateLOCA, code transition

LOCA, Core melt-down

LOCA, Vessel failed

MAAP Server #1

Unit #1 RCS/SG

TH CodeTransition

MAAP5.0

Unit #1 Containment

MAAP5.0

MAAP Server #2

Shared Aux. Building(w/ SFP)

MAAP5.0

Simulator

BOP GSE JTopmeret

Neutronics Studsvik S3R MAAP5.0

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A More Reliable Engineering Code

Best Estimate

Core Code

Accumulation of

Benchmarks

NQA (Future)

Code Improvement

New Capabilities

Verification & Validation

Documentation

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Engineering Codes to Simulator

Eng. Code

Bench-marks

NQA (Future)

Code Improve-

ment

New Capabi-

lities

V&V

Documen-tation

Simulation System

All Simulator System Models

Eng. Code

Input Deck

Various Interfaces

System Configu-ration

Simulator System Dev. &

Test Process

Engineering CodesTraining Simulator

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Progressive Simulator Solutions

Desktopsimulator

Full-scope simulator

Risk-informed simulator

Desktop HD (MAAP or RELAP)

HD (MAAP, RELAP, JADE,

etc..)

HD (MAAP, RELAP, JADE, uncertainty, database, etc..)

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Integrated EOPs, SAMGs, etc.

Full-scope Simulator (RELAP5-HD) MAAP

NOPs EOPs SAMGs

Emergency Director(Plant Manager)

Local Field Personnel

Main Control RoomTechnical Support

CenterRadiological

Center

Postulated Actions Exercises

Realistic Training Expanded Training

Other codes

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Next-Generation Simulation

• Multi-scale, multi-physics modeling• Wide-scale data processing• Large-scale numerical computation• Multi-variant, multi‐response and multi-dimensional

problems• Total data model integration• Data, computations, systems, uncertainty

quantification and knowledge management

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EPRI MAAP Code

• ''MAAP 5.0 is an Electric Power Research Institute (EPRI) software program that performs severe accident analysis for nuclear power plants including assessments of core damage and radiological transport. A valid license to MAAP 5.0 from EPRI for customer's use of MAAP 5.0 is required prior to a customer being able to use MAAP 5.0 with [LICENSEE PRODUCT].

• EPRI (www.epri.com) conducts research and development relating to the generation, delivery and use of electricity for the benefit of the public. An independent, nonprofit organization, EPRI brings together its scientists and engineers as well as experts from academia and industry to help address challenges in electricity, including reliability, efficiency, health, safety and the environment. EPRI does not endorse products or services, and specifically does not endorse [NEW PRODUCT NAME] or GSE. Interested vendors may contact EPRI for a license to MAAP 5.0."

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Thank you!

GSE Systems, Inc.

For more information:

Go to: www.GSES.com

Call: +1 800.638.7912

Email: info@gses.com

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