An advanced fusion-fission subcritical energy reactor core

Abstract

The invention belongs to a nuclear power design technique, and particularly relates to a loading scheme of an advanced fusion-fission subcritical energy reactor core. The reactor core structure comprises a plurality of fuel assembly modules which are arranged in a hoop along an annular plasma fusion area, wherein each fuel assembly module comprises a plurality of fuel assemblies arranged in a polar direction of the plasma fusion area; a first heat-resistant and radiation-resistant wall is arranged at one side of each fuel assembly towards the plasma fusion area; a tritium-producing coating is arranged at the other side of each fuel assembly opposite to each first wall; an outer shielding layer is arranged outside each tritium-producing coating. By adopting the advanced fusion-fission subcritical energy reactor core, the design requirements of the energy magnification factor and the tritium breeding ratio can be simultaneously met; the continuous growth of the magnification factor and the tritium breeding ratio can be maintained within a long period of time; the breeding performance of the reactor core is good.

Description

technical field [0001] The invention belongs to nuclear power design technology, in particular to an advanced fusion-fission subcritical energy reactor core loading scheme design. Background technique [0002] As a special reactor type transitioning to a controlled nuclear fusion power plant, the fusion-fission hybrid reactor has special advantages in terms of safety, economy, energy optimization utilization and environmental impact. The fusion-fission subcritical energy reactor with production capacity as the main purpose It is a kind of fusion-fission hybrid reactor, which uses the fusion reactor as a neutron source to generate high-flux neutrons, and coats the fusion device with a layer of fissile material or convertible material (such as 238 U 232 Th), energy and neutrons are multiplied by fusion neutron-induced fission, (n,2n) and capture reactions to generate electricity and fissile materials. The energy multiplier of the fission cladding, which is mainly based on pr...

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Problems solved by technology

At present, the feasibility of the existing preliminary scheme projects at home and abroad is poor, such as the divertor area that needs to be reserved for the fusion reactor core, the layout of the coolant pipeline, the problem of pressure bearing of the coolant pipeline, and the overall layout of the core are less considered

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