Invention Reference Number
Fusion power systems require reliable methods to deliver hydrogen isotopes into high-temperature plasmas for sustained energy production. Oak Ridge National Laboratory has developed a cryogenic pellet injection system compatible with tritium operation under reactor-relevant conditions. The system enables precise, repeatable delivery of cryogenic fuel pellets with materials that are tritium compatible, supporting long operational lifetimes and improved plasma fueling performance for future fusion reactors.
Description
This innovation introduces a cryogenic gas gun specifically designed for compatibility with tritium-based plasma fueling in fusion energy systems. The design incorporates a unique, fully sealed pellet sizing mechanism that allows variable pellet dimensions during operation while maintaining containment integrity. The injection system employs a reengineered cutting and valve assembly that eliminates exposure of sensitive materials to tritium, mitigating long-term degradation and enhancing operational safety. The simplified valve structure replaces multiple weld points and dissimilar metals with a single robust configuration, improving reliability and manufacturability for reactor environments. Overall, the technology represents a durable and scalable fueling solution that supports extended fusion reactor operation and efficient fuel utilization.
Benefits
- Enables long-pulse, tritium-compatible plasma fueling
- Reduces material fatigue and degradation
- Simplifies valve and seal architecture for improved reliability
- Enhances safety and maintainability in reactor-relevant environments
Applications and Industries
- Magnetic confinement fusion reactors
- Cryogenic fuel delivery systems
- Plasma research facilities
Contact
To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.
