Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 52 / Number 3
R. W. Moir, T. D. Rognlien
Fusion Science and Technology
Volume 52 / Number 3 / October 2007 / Pages 408-416
Format:electronic copy (download)
A fusion power plant is described that utilizes a new version of the tandem mirror device including spinning liquid walls. The magnetic configuration is evaluated with an axisymmetric equilibrium code predicting an average beta of 60%. The geometry allows a flowing molten salt, (flibe-Li2BeF4), which protects the walls and structures from damage arising from neutrons and plasma particles. The surface of the liquid facing the burning plasma is heated by bremsstrahlung radiation, line radiation, and by neutrons. The temperature of the free surface of the liquid is calculated, and then the evaporation rate is estimated from vapor-pressure data. The allowed impurity concentration in the burning plasma is taken as 1% fluorine, which gives a 17% reduction in the fusion power owing to D/T fuel dilution, with F line-radiation causing minor power degradation. The end leakage power density of 0.6 MW/m2 is readily handled by liquid jets. The tritium breeding is adequate with natural lithium. The simple geometry and the use of liquid walls promise the cost of power competitive with that from fission and coal.
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