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REACTOR FUEL PELLETS WITH THERMALLY-CONDUCTIVE INSERTS, AND RELATED REACTOR FUEL PELLET ARRANGEMENTS
REACTOR FUEL PELLETS WITH THERMALLY-CONDUCTIVE INSERTS, AND RELATED REACTOR FUEL PELLET ARRANGEMENTS
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机译:具有导热刀片的反应堆燃料粒料,以及相关反应器燃料颗粒布置
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摘要
Fuel pellets and fuel pellet arrangements include thermally-conductive inserts within a fuel. The inserts have at least one portion of a thermally-conductive material, such as radially-extending fins. The inserts are configured to dissipate heat during use of the fuel pellets, while minimizing the amount of the total volume of the fuel pellet that is occupied by non-fissile material. The inclusion of heat-dissipating inserts enables the fuel pellets to exhibit improved thermal performance over the lifetime of the fuel, including a relatively low peak temperature and relatively low integrated average temperatures, while the minimal volume of the inserts avoids significantly decreasing the percent of enrichment achievable.
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