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Fusion driving subcritical cladding of transmutation subordinate actinium series nuclide

A subcritical and minor actinide technology, applied in the field of minor actinide nuclide transmutation, can solve the problems of high corrosion of molten salt fuel and difficulty in fuel purification and purification, and achieve the effect of compact structure and high filling rate

Active Publication Date: 2013-05-08
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Molten salt fuel is highly corrosive, and it is difficult to purify the fuel

Method used

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  • Fusion driving subcritical cladding of transmutation subordinate actinium series nuclide
  • Fusion driving subcritical cladding of transmutation subordinate actinium series nuclide
  • Fusion driving subcritical cladding of transmutation subordinate actinium series nuclide

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Embodiment Construction

[0030] The structure of the present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0031] Fusion parameters and design requirements adopted in the present invention:

[0032] (1) The large and small radii of the plasma cavity are 3m and 0.75m respectively, the ring diameter ratio is 4, and the elongation ratio is 1.7;

[0033] (2) Fusion power less than 200MW, first wall load less than 1MW / m 2 , the tritium multiplication ratio is greater than 1.15, the energy amplification factor is greater than 10, and the output thermal power is 1500MW;

[0034] Such as figure 1 and figure 2 As shown, it is a cross-sectional view of a single module. The overall shape of each cladding module is a "D" shape, including an inner cladding, an outer cladding, and a "D"-shaped plasma chamber 1 formed between the inner cladding and the outer cladding. The inner cladding layer is cylindrical, and radially from the inside to the outside a...

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Abstract

A fusion driving subcritical cladding of transmutation subordinate actinium series nuclide is formed by a plurality of same independent small modules. The whole shape of each small module is D-shaped. Each small module comprises an inner cladding, an outer cladding and a D-shaped plasma body cavity which is formed in each small module. The inner cladding is in a cylindrical shape. The inner cladding successively comprises an inner shield, an inner reflecting layer, an inner first wall and an inner scraping layer from inside to outside along the radial direction. The whole shape of the outer cladding is also D-shaped. The outer cladding successively comprises an outer scraping layer, an outer first wall, a transmutation area, a tritium breeding blanket, an outer reflecting layer and an outer shielding layer from inside to outside along the radial direction. A plurality of transmutation fuel subassemblies are horizontally arranged in the transmutation area along the first wall. By the adoption of the modularized design, fuel is convenient to load and unload. By the adoption of the horizontal arrangement of the transmutation fuel subassemblies in the transmutation area, the filling rate of the transmutation area is improved to enable the structure of the transmutation cladding to be more compact. Metal alloy fuel is adopted by the fuel in the transmutation fuel subassemblies, and a hard energy spectrum is obtained to benefit metal alloy (MA) to carry out the direct and effective transmutation through fission reactions.

Description

technical field [0001] The invention belongs to the technical field of transmutation of minor actinide nuclides, and in particular relates to a fusion-driven subcritical cladding for transmutation of minor actinide nuclides. Background technique [0002] At present, fission reactors in the world have produced a large amount of highly radioactive nuclear waste, which has become one of the important reasons restricting the development of nuclear power. For this reason, the transmutation of nuclear waste has become an international hot issue, especially the research on the transmutation of highly radioactive and long-lived minor actinides (MA for short). [0003] Fusion-driven subcritical transmutation cladding relies on neutrons generated by fusion reactions to operate in a subcritical state. The subcriticality can be designed to be relatively deep to reduce the possibility of supercritical accidents. The energy of fusion neutrons is 14.1 MeV, which is beneficial to obtain a ...

Claims

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Application Information

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IPC IPC(8): G21B1/11
CPCY02E30/10
Inventor 曹良志杨超吴宏春
Owner XI AN JIAOTONG UNIV
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