PEGASUS™

State-of-the-Art Nuclear Fuel Behavior

Solve the Most Challenging Nuclear Fuel Problems – Optimize Fuel Performance

What are the benefits of PEGASUS?

ACCURATE FUEL BEHAVIOR PREDICTIONS
PEGASUS has a unique 2D/3D finite element engine coupled with a superior thermo-mechanical contact algorithm
FUEL VENDOR INDEPENDENT
PEGASUS can be used to analyze fuel designs from multiple fuel vendors
MODULAR ARCHITECTURE
PEGASUS code construction allows secure fuel vendor material properties’ proprietary data protection
EXPERT SUPPORT
PEGASUS is supported by four decades of in-depth fuel behavior knowledge and experience

What is PEGASUS?

PEGASUS is a next generation nuclear fuel behavior code capable of analyzing steady state and transient fuel rod response for conventional and accident tolerant LWR fuel as well as advanced reactor TRISO fuel.

The code is a culmination of over four decades of advanced nuclear fuel behavior knowledge and experience. It will model fuel rod behavior for the entire fuel cycle from startup, operation, reactor transients, and ultimately through spent fuel transportation and permanent storage.

Structural Integrity | Innovation | PEGASUS | Fuel Reliability and Optimization | LWR fuel rod 10pellets Labels

APPLICATIONS

SPECIALIZED ANALYSIS

LWR startup, operational, and specialized analyses such as 2D/3D pellet-cladding interaction (PCI), missing pellet surface (MPS), and fuel rod failure margin analyses

Structural Integrity | Innovation | PEGASUS | Fuel Reliability and Optimization | LWR startup, operational, and specialized analyses | mps r-theta

3D MPS Rod Segment Model | 2D R-θ MPS Model

ADVANCED FUEL

Application for advanced fuel systems such as TRISO-based designs for gas-cooled and other advanced reactor systems

Structural Integrity | Innovation | PEGASUS | Fuel Reliability and Optimization | TRISO Kernel

3D TRISO Fuel Kernel Model Geometry

SPENT FUEL

Uniquely capable of spent fuel assessment and integrity analyses supporting testing, transportation, and storage, based on the combination of nuclear fuel performance and structural analysis modeling capability