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Energies 2016, 9(7), 508; doi:10.3390/en9070508

Progress of the Plasma Centerpost for the PROTO-SPHERA Spherical Tokamak

National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Frascati 00044, Italy
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Academic Editor: Rodolfo Araneo
Received: 8 February 2016 / Revised: 15 June 2016 / Accepted: 21 June 2016 / Published: 30 June 2016

Abstract

Plasma properties can be useful in a wide spectrum of applications. Experimental projects on controlled nuclear fusion are the most challenging of these applications and, at the same time, the best way to approach plasma science. Since nuclear fusion reactors can ensure a large-scale, safe, environmentally-friendly and virtually inexhaustible source of energy, several fusion-oriented megaprojects and innovative companies are appearing all over the world. PROTO-SPHERA (Spherical Plasma for HElicity Relaxation Assessment) is the first plasma project with a simply connected configuration, namely not requiring additional objects inside the plasma volume. This is obtained by a plasma arc, shaped as a screw pinch, acting as the centerpost of a spherical torus with minimal aspect ratio. Due to its intrinsic physical, engineering and economic advantages, this new approach is attractive also on an industrial scale and with several developments that still needs to be explored. This paper presents the PROTO-SPHERA basic principles, its first encouraging results and its expected and potential evolutions. View Full-Text
Keywords: nuclear fusion; pinch; plasma physics; power converters and inverters; power plants; power supply; spherical tokamak; sustainable energy sources nuclear fusion; pinch; plasma physics; power converters and inverters; power plants; power supply; spherical tokamak; sustainable energy sources
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lampasi, A.; Maffia, G.; Alladio, F.; Boncagni, L.; Causa, F.; Giovannozzi, E.; Grosso, L.A.; Mancuso, A.; Micozzi, P.; Piergotti, V.; Rocchi, G.; Sibio, A.; Tilia, B.; Zanza, V. Progress of the Plasma Centerpost for the PROTO-SPHERA Spherical Tokamak. Energies 2016, 9, 508.

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