Post-test examination of a Li-Ta heat pipe exposed to H plasma in Magnum PSI

Post-test examination of a Li-Ta heat pipe exposed to H plasma in Magnum PSI

The authors exposed a radiatively cooled, Li-filled tantalum (Ta) heat pipe (HP) to a H plasma in Magnum PSI continuously for ˜2 h. We kept the overall heat load on the inclined HP constant and varied the tilt to give peak heat fluxes of ˜7.5–13 MW/m2. The peak temperature reached ˜1250 °C. This pap...

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Veröffentlicht in:Fusion engineering and design 2019-09, Vol.146, p.2603-2607
Hauptverfasser: Nygren, R.E., Matthews, G.F., Morgan, T.W., Silburn, S.A., Rosenfeld, J.H., North, M.T., Tallarigo, A., Stavila, V.N.
Format: Artikel
Sprache:eng
Schlagworte:
Fusion energy
Heat flux
Heat pipes
Lithium
Plasma facing components
Refractory metals
Tantalum
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Zusammenfassung:The authors exposed a radiatively cooled, Li-filled tantalum (Ta) heat pipe (HP) to a H plasma in Magnum PSI continuously for ˜2 h. We kept the overall heat load on the inclined HP constant and varied the tilt to give peak heat fluxes of ˜7.5–13 MW/m2. The peak temperature reached ˜1250 °C. This paper describes the post-test analysis and discusses Li HPs with materials other than Ta for fusion. A companion paper describes the experiment.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2019.04.053