Modelling ELM heat flux deposition on the ITER main chamber wall

0473244 - ÚFP 2017 RIV NL eng J - Journal Article
Kočan, M. - Pitts, R.A. - Lisgo, S.W. - Loarte, A. - Gunn, J. P. - Fuchs, Vladimír
Modelling ELM heat flux deposition on the ITER main chamber wall.
Journal of Nuclear Materials. Roč. 463, July (2015), s. 709-713. ISSN 0022-3115. E-ISSN 1873-4820.
[International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI)/21./. Kanazawa, 26.05.2014-30.05.2014]
Institutional support: RVO:61389021
Keywords : ELM * ITER
OECD category: Nuclear related engineering
Impact factor: 2.199, year: 2015

Abstract The interaction of ELM filaments with the ITER beryllium first wall panels (FWPs) is studied using a simple ad-hoc fluid model of the filament parallel transport, taking into account the full, three-dimensional structure of the FWPs, including magnetic shadowing effects. The calculated ELM surface heat loads are used as input to the RACLETTE heat transfer code to estimate the FWP surface temperature rise. The results indicate that controlled ELMs in ITER during burning plasma operation (ΔWELM ≈ 0.6 M J) will not lead to melting or significant evaporation of the beryllium surfaces, even in the case of high ELM broadening and the minimum allowable distance between the primary and secondary separatrices. The ELM-averaged steady-state heat load also stays below the maximum power handling capability of the FWPs.
Permanent Link: http://hdl.handle.net/11104/0270410