Divertorlets concept for low-recycling fusion reactor divertor: Experimental, analytical and numerical verification

TY - JOUR

T1 - Divertorlets concept for low-recycling fusion reactor divertor

T2 - Experimental, analytical and numerical verification

AU - Saenz, F.

AU - Sun, Z.

AU - Fisher, A. E.

AU - Wynne, B.

AU - Kolemen, E.

N1 - Funding Information: This work was supported by the United States Department of Energy through Field Work Proposal No. 1019, Domestic Liquid Metal Plasma Facing Component Development. The research described in this paper was conducted under the Laboratory Directed Research and Development (LDRD) Program at Princeton Plasma Physics Laboratory, a national laboratory operated by Princeton University for the US Department of Energy under Prime Contract No. DE-AC02-09CH11466. This manuscript is based upon work supported by the US Department of Energy, Office of Science, Office of Fusion Energy Sciences. Publisher Copyright: © 2022 IAEA, Vienna.

PY - 2022/8

Y1 - 2022/8

N2 - The 'divertorlets' concept is a potential non-evaporative liquid metal solution for heat removal at low recycling regime. A toroidal divertorlets prototype was built and tested in LMX-U at Princeton Plasma Physics Laboratory to evaluate the performance of this configuration. In this paper, details of the design, experimental results, comparison with analytical theory and MHD numerical simulations of toroidal divertorlets are covered. Experiments, analytical model and simulations showed agreement and allowed the projection of operation properties at higher magnetic flux densities (reactor-like operation), proving the concept to be a compelling solution for divertor applications.

AB - The 'divertorlets' concept is a potential non-evaporative liquid metal solution for heat removal at low recycling regime. A toroidal divertorlets prototype was built and tested in LMX-U at Princeton Plasma Physics Laboratory to evaluate the performance of this configuration. In this paper, details of the design, experimental results, comparison with analytical theory and MHD numerical simulations of toroidal divertorlets are covered. Experiments, analytical model and simulations showed agreement and allowed the projection of operation properties at higher magnetic flux densities (reactor-like operation), proving the concept to be a compelling solution for divertor applications.

KW - liquid metals

KW - MHD simulations

KW - plasma facing components

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U2 - https://doi.org/10.1088/1741-4326/ac6682

DO - https://doi.org/10.1088/1741-4326/ac6682

M3 - Article

SN - 0029-5515

VL - 62

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 8

M1 - 086008

ER -