Fusion reactor
Adapting computational optimization concepts from aeronautics to nuclear fusion reactor design
... nuclear fusion reactor divertor design is extremely CPU demanding, not least due to the large number of design variables and the hybrid micro-macro character of the ...current reactor design ...
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Study on Jets Stabilized by Inserting Internal Flow Resistances for the Liquid Metal Divertor in the Helical Fusion Reactor
... the fusion reactor, higher neutron and γ-ray irradiations than in LHD make the performances of measurements and actuators for diver- tor detachment poor ...
5
Magnetohydrodynamic Calculations of Toroidal Fusion Reactor to Ensure Stable Control
... for fusion energy is a challenge that is a mixture of basic fusion engineering and ...the fusion reactions in the plasma to be continuing in the fusion reactors, the speed of tritium breeding ...
8
Improved Design of a Cartridge-Type Helical Blanket System for the Helical Fusion Reactor FFHR-b1
... The blanket is one of the important components com- prising the fusion reactor. The blanket has three roles of tritium breeding, neutron shielding, and energy conver- sion from the 14 MeV neutron energy to ...
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Current Status of Fusion Reactor Structural Materials R&D
... 2003, fusion is an important energy option for Japan. Thus fusion energy should be attractive and competitive as the future ...that fusion plasma satisfies self ignition condition and is well ...
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Reduced-Size LHD-Type Fusion Reactor with D-Shaped Magnetic Surface
... A new winding law for the continuous helical coils is proposed for Large Helical Device (LHD) type fusion reactors to satisfy the requirements for a wide blanket space and large plasma volume. Helical coils wound ...
5
Design Status of the Structural Components of the Helical Fusion Reactor FFHR-d1
... To solve the remaining issues, several new ideas (or challenging options) have been proposed. For example, the helical fusion reactor might be e ffi ciently constructed using a high temperature superconductor ...
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Thermo-mechanical analysis of a helium cooled divertor of a fusion reactor
... The development of the divertor for the forthcoming DEMO fusion reactor stipulates heat flux loads larger than 10 MW/m 2 . Successful design should withstand such high loads for a number of load cycles. One ...
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Vbm Fusion Reactor H – H Cycle
... The produced helium -3 nucleus starts its circular motion from point “F“ (0,0,0)or the point p1(x1 , y1, z1) and reaches at point p2 (x2 , y2 , z2) located on the circumference of the circle to be followed by the helium ...
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A Study of the Flow Patterns of Expanding Impurity Aerosol Following a Disruption Event in a Fusion Reactor
... configuration of an electrothermal (ET) plasma source with a supersonic throat connected at the ET source exit and opens into a large volume representing a fusion reactor vacuum vessel [9-11]. As the plasma ...
180
Silicon Carbide and Silicon Carbide Composites for Fusion Reactor Application
... the fusion reactor system due to its enhanced toughness by fiber reinforcement and intrinsic properties of SiC such as low activation, chemical and environmental inertness, irradiation stability, and very ...
5
Comments on the status of modern covariance data based on different fission and fusion reactor studies
... – reactor pressure vessel surveillance dosimetry [3]: uncer- tainty in predicted dosimeter reaction rates and pressure vessel exposition, determination of realistic safety margins and consequently the ...
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Sounding procedure for characterization of big fusion reactor chambers by means of a compact neutron source with a nanosecond pulse duration
... In the paper a methodology that is elaborated for characterization of big-sized chambers of modern and future nuclear fusion reactors is described. It gives an opportunity to defi ne distortions introduced by ...
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Environmental and Economical Assessment of Various Fusion Reactors by the Calculation of CO2 Emission Amounts
... magnetic fusion reactors [3], we evalu- ate various blanket designs, including fission-fusion hybrid and D- 3 He fuel fusion ...confinement fusion reactor is also assessed by adding ...
5
Possibility of Quasi-Steady-State Operation of Low-Temperature LHD-Type Deuterium-Deuterium (DD) Reactor Using Impurity Hole Phenomena – DD Reactor Controlled by Solid Boron Pellets –
... (DB) fusion reactor, (43∼63)% of the fusion energy (depending on the nuclear burning conditions) is released as charged particle energy (= P c ...He fusion reactions produces the ...
5
Feasibility of HTS Magnet Option for Fusion Reactors
... Conceptual design studies are being carried out on the application of high-temperature superconducting (HTS) conductors and coils to the magnet systems of fusion reactors. A 100-kA-class HTS conductor is re- ...
6
DT Fusion Ignition of LHD-Type Helical Reactor by Joule Heating Associated with Magnetic Axis Shift
... A new concept to achieve current drive with magnetic axis shift, which is caused by vertical magnetic field coil current change in LHD-type magnetic configuration, is proposed. It is confirmed numerically that an LHD- ...
5
Recent Fusion Research in the National Institute for Fusion Science
... for Fusion Science (NIFS) was established on May 29, 1989 aimed at academic ap- proaches towards the exploration of fusion science for a steady-state helical reactor and establishment of a com- ...
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Development of Transport Model in Reactor Plasmas based on LHD Experiment Scaling
... (LHD), reactor-relevant high-beta plasmas with volume-averaged beta (β) of ∼ 5% are achieved without disruptive ...efficient fusion reac- tor, because the helical type device does not require the plasma ...
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Multi-Input Multi-Output (MIMO) Control System with a State Equation for Fusion Reactors
... a fusion reactor in which three control parameters (i.e., fusion power, plasma current, and plasma density) were se- lected, and three actuators ...
5