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Thermomechanical processes in an inertial thermonuclear fusion reactor blanket under cyclic exposure to neutron fluence |
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| Authors: | S A Medin A N Parshikov I M Lozitskii Yu N Orlov |
| Affiliation: | (1) Department of Nuclear Engineering, Kyoto University, Yoshida Honmachi, Sakyo Kyoto, 606-8501, Japan;(2) Advanced Nuclear System Research and Development Directorate, Japan Atomic Energy Agency, O-arai, Ibaraki, Japan;(3) Applied Laser Technology Institute, Tsuruga, Fukui, Japan;(4) Institute of Advanced Energy, Kyoto University, Uji, Kyoto, Japan |
| Abstract: | The thermomechanical processes occurring in the blanket of a heavy-ion inertial thermonuclear fusion reactor are analyzed. The heat-release density in the structural materials and the blanket coolant is calculated on the basis of prescribed characteristics of the neutron pulse from a ~1 GJ microexplosion of a target. Calculations of the nonstationary thermoelastic stress and pressure fields as well the temperature of the wall and blanket coolant are performed using simple one-dimensional models. The amplitude and frequency characteristics of the stress and pressure waves generated by the energy released in the microexplosion are obtained. The thermal relaxation processes occurring in the elements of the blanket between successive microexplosions are analyzed. |
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