Engineering Feasibility of a Grid Mesh Structure in a Traveling Wave Direct Energy Converter

概要

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In D-^3He/FRC fusion reactor such as "ARTEMIS-L" [1] , a traveling wave direct energy converter (TWDEC) was proposed to recover the energy of fusion protons of 15 MeV. In this paper, engineering feasibility of grid meshes in TWDEC is studied. The fusion protons are guided from burning plasma to the direct energy converter, where the incident power is as high as 3.5 MW/m^2. In order to remove incident heat to grid meshes, a radiative cooling without liquid flow is ineffective because of the high heat flux. The method by the flow of the pressurized water of 15 MPa with a flow velocity of higher than 10 m/sec is feasible to remove the incident heat. However, it is necessary to exchange grid meshes attributed to the irradiation effect, such as displacements of atoms, several times during a lifetime of a reactor.
社団法人プラズマ・核融合学会の論文
1996-05-25