SOLID-LIQUID HYBRID FUEL ELEMENT
PROBLEM TO BE SOLVED: To solve problems in a molten salt reactor using a liquid fuel obtained by dissolving a nuclear fuel in molten salt, accompanying the burning of a nuclear material in the molten salt, such as replenishment of new nuclear materials, purification of nuclear reaction product remai...
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Language | English Japanese |
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27.04.2017
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Abstract | PROBLEM TO BE SOLVED: To solve problems in a molten salt reactor using a liquid fuel obtained by dissolving a nuclear fuel in molten salt, accompanying the burning of a nuclear material in the molten salt, such as replenishment of new nuclear materials, purification of nuclear reaction product remaining in the molten salt, discharge of an FP gas as a nuclear reaction product, and oxidation-reduction regulation.SOLUTION: A solid-liquid hybrid fuel element 1 includes: a cylindrical fuel element cask encapsulating molten salt 4; a solid salt fuel 2 disposed in an upper space in the fuel element cask; a coupling rod 3 holding the solid salt fuel and transmitting heat from the molten salt 4; and a molten salt fuel heated and molten by nuclear reaction. Having in the upper space in the fuel element cask a solid salt fuel block for component-adjusted new fuel, the solid-liquid hybrid fuel element 1 can replenish reduced nuclear reaction substance due to a progress of the nuclear reaction in the molten salt portion by supplying the solid salt fuel block sequentially in accordance with the burning of the nuclear material in the molten salt. This allows a long-term operation.SELECTED DRAWING: Figure 1
【課題】溶融塩中に核燃料を溶解させた液体燃料を用いる溶融塩炉では、溶融塩中の核物質の燃焼に伴い、新しい核物質の補填や、溶融塩中に溜まる核反応生成物の純化、また核反応生成物であるFPガスの排出、また溶融塩の酸化還元調整などを解決すること。【解決手段】本発明の固液ハイブリッド燃料体1は、溶融塩4を封入する円筒状の燃料体キャスクと、燃料体キャスク内の上部空間に配設された固体塩燃料2と、これを保持し、かつ溶融塩4からの熱を伝える連結棒3と、核反応により発熱し溶融している溶融塩燃料とからなる。本発明の固液ハイブリッド燃料体1は、燃料体キャスク内の上部空間に成分調整した新燃料の固体塩燃料ブロックを有するため、溶融塩内の核物質の燃焼に従い、固体塩燃料ブロックを順次投入することで、溶融塩部分での核反応の進行により減少する核反応物質を補填することができる。これにより、長期の運転が可能となる。【選択図】図1 |
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AbstractList | PROBLEM TO BE SOLVED: To solve problems in a molten salt reactor using a liquid fuel obtained by dissolving a nuclear fuel in molten salt, accompanying the burning of a nuclear material in the molten salt, such as replenishment of new nuclear materials, purification of nuclear reaction product remaining in the molten salt, discharge of an FP gas as a nuclear reaction product, and oxidation-reduction regulation.SOLUTION: A solid-liquid hybrid fuel element 1 includes: a cylindrical fuel element cask encapsulating molten salt 4; a solid salt fuel 2 disposed in an upper space in the fuel element cask; a coupling rod 3 holding the solid salt fuel and transmitting heat from the molten salt 4; and a molten salt fuel heated and molten by nuclear reaction. Having in the upper space in the fuel element cask a solid salt fuel block for component-adjusted new fuel, the solid-liquid hybrid fuel element 1 can replenish reduced nuclear reaction substance due to a progress of the nuclear reaction in the molten salt portion by supplying the solid salt fuel block sequentially in accordance with the burning of the nuclear material in the molten salt. This allows a long-term operation.SELECTED DRAWING: Figure 1
【課題】溶融塩中に核燃料を溶解させた液体燃料を用いる溶融塩炉では、溶融塩中の核物質の燃焼に伴い、新しい核物質の補填や、溶融塩中に溜まる核反応生成物の純化、また核反応生成物であるFPガスの排出、また溶融塩の酸化還元調整などを解決すること。【解決手段】本発明の固液ハイブリッド燃料体1は、溶融塩4を封入する円筒状の燃料体キャスクと、燃料体キャスク内の上部空間に配設された固体塩燃料2と、これを保持し、かつ溶融塩4からの熱を伝える連結棒3と、核反応により発熱し溶融している溶融塩燃料とからなる。本発明の固液ハイブリッド燃料体1は、燃料体キャスク内の上部空間に成分調整した新燃料の固体塩燃料ブロックを有するため、溶融塩内の核物質の燃焼に従い、固体塩燃料ブロックを順次投入することで、溶融塩部分での核反応の進行により減少する核反応物質を補填することができる。これにより、長期の運転が可能となる。【選択図】図1 |
Author | FURUKAWA MASAAKI IWASHITA TSUYOSHI WATANABE TAKASHI |
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Snippet | PROBLEM TO BE SOLVED: To solve problems in a molten salt reactor using a liquid fuel obtained by dissolving a nuclear fuel in molten salt, accompanying the... |
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SubjectTerms | NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS |
Title | SOLID-LIQUID HYBRID FUEL ELEMENT |
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