PPPL-4910

Radial Cooling of a Spherical Torus (ST) Toroidal Field (TF) Centerpost

Authors: Robert D. Woolley

Abstract:
It is best for fusion to operate STs at the highest feasible toroidal field. This may not be obvious since dissipated electrical power increases as the square of magnetic field strength. However, fusion power density increases even faster. For example, increasing TF by 10% increases electrical losses by 21% but it also may increase fusion power by 46.4%.
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Submitted to: SOFE Proeedings (June 0213) 25th Symposium on Fusion Engineering, San Francisco, CA (June 10-14, 2013)

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Download PPPL-4910 (pdf 490 KB 6 pp)
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