Spherical fuel elements made of graphite for temperature reactors and process for reworking it after the irradiation. [pebble bed reactors]

Patent · Tue Jan 16 00:00:00 EST 1979

OSTI ID:6472406

Hrovat, M; Becker, H J; Huschka, H

There are provided pressed spherical fuel elements for high temperature reactors made of a graphite matrix with separate embedded coated fuel and fertile material particles wherein the fuel elements comprise 3 concentric layers including a graphite nucleus or core which only contains fertile material particles. This graphite nucleus is surrounded by a graphite zone which only contains the fuel particles and this is encased in a shell of pure graphite, the same graphite material being present in all three layers.

• Assignee: Hochtemperaturreaktor-Brennelement GmbH
• Patent Number(s): US 4134941
• OSTI ID: 6472406
• Resource Relation: Patent Priority Date: Priority date 14 Dec 1973, German, Federal Republic of (F.R. Germany)
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
FUEL SPHERES
DESIGN
PEBBLE BED REACTORS
COATED FUEL PARTICLES
FABRICATION
GRAPHITE
REPROCESSING
CARBON
ELEMENTS
FUEL ELEMENTS
FUEL PARTICLES
HOMOGENEOUS REACTORS
NONMETALS
REACTOR COMPONENTS
REACTORS
SEPARATION PROCESSES
SOLID HOMOGENEOUS REACTORS
210300* - Power Reactors
Nonbreeding
Graphite Moderated