Nuclear Fuel Analysis...

Nuclear Fuel Analysis SoftwareOPERATING EFFICIENCY

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Studsvik has a long history of providing fuel vendor independent analysis software and services. These products encompass In-Core Fuel Management, Core Monitoring, Transient Analysis, simulator training for reactor operators, and fuel back-end applications. They are used throughout the world for LWR core design and analyses as well as plant operational support.

Fuel Vendor Independent Solutions

“a global leader in software

and services for In-Core Fuel

Management“

CMS Product LineThe Studsvik product line covers a wide range of In-Core Fuel Management applications, including:• In-Core Fuel and Core Design• Steady State & Transient Core Analysis• Operational Support / Reactor Engineering• Core Monitoring and Core Tracking• Operator Simulator Training• Back-end Analysis (storage/shipping casks)

CASMO - Lattice Spectrum CodeCASMO is a fuel lattice modeling code used primarily in generation of nuclear libraries for downstream CMS core modeling simulation products. CASMO can also be used as a standalone fuel lattice analyses solution. Multi-assembly geometric confi gurations, as well as spent fuel pool confi gurations for criticality analyses, for example, can be modeled.

SIMULATE - Steady State Core ModelSIMULATE is the main fuel core analysis product for incore fuel design and steady state core operational analyses. Refl ecting the broad experience of application to 1000’s of LWR cycles of operation, SIMULATE contains automated engineering analysis functions typically associated with core design and steady state analyses.

XIMAGE - Loading Pattern DevelopmentXIMAGE provides an automated core loading pattern development tool. XIMAGE employs intuitive graphical interface and automated calculational sequences typically associated with core design, providing a cost effective, accurate solution. Core designs developed with XIMAGE can be automatically exported back to SIMULATE for more in-depth core analysis.


documentation system using the CMS neutronics model.

CMSOps includes automated standard operational calculation functions for reactivity management, such as estimated

critical condition, axial shape guidance during power manuever, reactivity coeffi cients, and shutdown margin, as well as, predictive and recalculation capabilities.

GARDEL - Online Core MonitoringExpands the capabilities of CMSOps to include real time core monitoring functions in a fuel vendor independent application.

SIMULATE-3R- Cycle Specifi c Real Time Core Model for Operator TrainingSIMULATE-R provides a cycle specifi c reactor core model for the training simulator. The model is created automatically from SIMULATE, assuring fi delity of the simulator model results to the cycle specifi c core design model, saving resource otherwise needed to tune the training simulator.

SIMULATE-R has been successfully integrated with major training simulator vendors, including ThunderSim, GSE Systems, CAE, DSS, and Westinghouse.

ServicesWith a staff of 40 experienced nuclear engineers, Studsvik provides expert consultant services for model setup and customized analyses.

SIMULATE-3K Transient Analysis ModelingSIMULATE-3K is the transient version of SIMULATE used for application to transient analysis. Typical applications are for Reactivity Insertion Accidents (RIA’s),

as well as plant transients such as turbine trip, pump trip, etc. SIMULATE-3K has also been successfully coupled to system transient codes (e.g., RELAP5 or RETRAN)

Model setup is easy since the core model description and nuclear data library created by SIMULATE can be used directly.

SNF - Spent Fuel AnalysisSNF provides source term and decay heat calculations using the detailed isotopic concentrations from CASMO (over 300 isotopes explicitly represented), and the detailed operational spectrum history from SIMULATE. SNF has been extensively benchmarked against measured data of spent fuel, demonstrating SNF as a highly accurate solution for analyzing spent fuel and cask loading applications.

CMSOps - Automated Reactivity Managment and Operational SupportCMSOps provides an automated core tracking, operational support and

Studsvik provides expert con-sultant services for model setup and customized analyses

“application to1000’s of

LWR cycles of operation“

In-Core Design & Analysis• CASMO Lattice Spectrum Depletion Model

• SIMULATE Steady State Reactor Core Model

• XIMAGE Loading Pattern Design

• SIMULATE-3K Transient Analysis Core Modeling

• SNF Source Term, Decay Heat and SNM

OperationalSupport• CMSOps

Automated Reactivity Management

• GARDEL

Online Core Monitoring

• SIMULATE-3R

Real Time Operator Training Core Model

Consulting Services• CMS MODEL REVIEW

• CORE DESIGN

• CUSTOM ANALYSIS

CMS Product line – In-Core Design, Operational Support and Consulting Services


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SummaryStudsvik software products and services are used for in-core fuel management, core monitoring, transient analysis, simulator training for reactor operators, fuel pool criticality, and fuel back-end applications. Together, over fi fty-fi ve organizations in fi fteen different countries have analyzed every commercially available LWR (light water reactor) fuel design in over a thousand reactor operating cycles using Studsvik products.

This experience base, plus one of the largest active software development groups in the industry, positions Studsvik as a global leader in software and services for in-core fuel management.

Hardware RequirementsStudsvik software products are written to function on standard UNIX, Windows, PC and Linux platforms. In addition, fi les created within the CMS product line are specifi cally written to be binary compatible, resulting in cross-platform compatibility. This allows the luxury of using CMS on a heterogeneous computing network.

Global Leader in Software and ServicesFor In-Core Fuel Management

Studsvik ABBox 556, SE-611 10 Nyköping SwedenPhone: +46 155 22 10 00Telefax: +46 155 26 30 00E-mail: [email protected]

Nuclear Fuel Analysis Software

Studsvik Scandpower, Inc.1087 Beacon St., Suite 301Newton, MA USA 02459-1700Phone: +1 617 965 7450Telefax: +1 617 965 7549E-mail: [email protected]

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