DOAJ Open Access 2020

Radiative heat load distribution on the EU-DEMO first wall due to mitigated disruptions

M. Moscheni M. Carr S. Dulla F. Maviglia A. Meakins +3 lainnya

Abstrak

The EU-DEMO First Wall (FW) will be a relatively thin structure. In order not to damage this layer, heat loads distributed onto the wall should be carefully controlled. In the case of transient events, as for example plasma disruptions, the steady-state heat load limit (∼1-2MW/m2) can be largely exceeded for a timespan sufficiently long to cause damages. Therefore, when the control system detects an upcoming disruption, Shattered Pellet Injection (SPI) or Massive Gas Injection (MGI) mitigation techniques can be employed to inject impurities and switch off the plasma safely. In the present work, the Monte-Carlo ray-tracing code CHERAB is used to compute the radiative heat load distribution on the EU-DEMO Plasma Facing Components (PFCs) due to a mitigated plasma disruption. By applying ad-hoc techniques to improve the quality of the Monte Carlo calculation, we obtain a peak radiative load of ∼490MW/m2 on the PFCs, which is ∼25% lower than previous estimates.

Topik & Kata Kunci

Nuclear engineering. Atomic power

Penulis (8)

M. Moscheni

M. Carr

S. Dulla

F. Maviglia

A. Meakins

G.F. Nallo

F. Subba

R. Zanino

Format Sitasi

APA MLA BibTeX

Moscheni, M., Carr, M., Dulla, S., Maviglia, F., Meakins, A., Nallo, G. et al. (2020). Radiative heat load distribution on the EU-DEMO first wall due to mitigated disruptions. https://doi.org/10.1016/j.nme.2020.100824

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Informasi Jurnal

Tahun Terbit: 2020
Sumber Database: DOAJ
DOI: 10.1016/j.nme.2020.100824
Akses: Open Access ✓