Tritium proof-of-principle pellet injector - Phase II
- Oak Ridge National Lab., TN (United States)
As part of the International Thermonuclear Engineering Reactor (ITER) plasma fueling development program, Oak Ridge National Laboratory (ORNL) has fabricated a pellet injection system to test the mechanical and thermal properties of extruded tritium. This repeating, single-stage, pneumatic injector, called the Tritium-Proof-of-Principle Phase II (TPOP-II) Pellet Injector, has a piston-driven mechanical extruder and is designed to extrude hydrogenic pellets sized for the ITER device. The TPOP-II program has the following development goals: evaluate the feasibility of extruding tritium and deuterium-tritium (D-T) mixtures for use in future pellet injection systems; determine the mechanical and thermal properties of tritium and D-T extrusions; integrate, test, and evaluate the extruder in a repeating, single-stage light gas gun that is sized for the ITER application (pellet diameter approx.7 to 8 mm); evaluate options for recycling propellant and extruder exhaust gas; evaluate operability and reliability of ITER prototypical fueling systems in an environment of significant tritium inventory that requires secondary and room containment systems. 10 refs., 4 figs.
- OSTI ID:
- 196686
- Report Number(s):
- CONF-950506--
- Journal Information:
- Fusion Technology, Journal Name: Fusion Technology Journal Issue: 3 pt 1 Vol. 28; ISSN 0748-1896; ISSN FUSTE8
- Country of Publication:
- United States
- Language:
- English
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