Technical description of the heterogeneous gas core reactor

Technical Report · Wed Jan 01 04:00:00 EST 1986

DOI:https://doi.org/10.2172/6413661· OSTI ID:6413661

Diaz, N J; Dugan, E T; Han, K I

Solid-fueled and liquid-fueled heterogeneous nuclear reactors have already undergone extensive analysis and development. Gas-fueled nuclear reactor studies, however, have been restricted to either (1) homogeneous core systems, (2) two large separate regions of fuel and moderator; and (3) concentric rings of fuel-moderator arrangements. The gas-fueled heterogeneous core reactors consist of an array of coolant/moderator channels in a vessel containing a fissionable gas or a mixture of fissionable and non-fissionable gases. The moderator/coolant is, therefore, distributed in the core but physically separated from the gas. It is this moderator/coolant distribution in a variable lattice arrangement surrounded by the gas which constitutes the bases of this concept. The results of this arrangement on the neutron and fuel economy, power distribution, power density, and heat transfer characteristics have been found to be extremely advantageous. 13 figs.

• Research Organization: Florida Univ., Gainesville (USA). Dept. of Nuclear Engineering Sciences
• OSTI ID: 6413661
• Report Number(s): DOE/NBM-5017971; ON: DE85017971
• Country of Publication: United States
• Language: English

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