Infrared emissivity of reduced-activation Eurofer 97 for fusion reactor applications

JOURNAL OF NUCLEAR MATERIALS

卷:549

Article

Echaniz, T.¹  de Arrieta, I. Gonzalez^2,3  Gil-Munoz, A.²  Fernandez-Pereda, J.²  Fuente, R.¹  Klimenkov, M.⁴  Lopez, G. A.² 

[1] Univ Basque Country UPV EHU, Appl Math, E-48013 Bilbao, Spain

[2] Univ Basque Country UPV EHU, Phys Dept, E-48940 Leioa, Spain

[3] Univ Orleans, CEMHTI UPR3079, CNRS, F-45071 Orleans, France

[4] Karlsruhe Inst Technol KIT, Inst Appl Mat Appl Mat Phys, D-76021 Karlsruhe, Germany

关键词: Eurofer 97;    Infrared emissivity;    Low-activation materials;    Heat transfer;    Ferritic-martensitic steels;   

DOI  :  10.1016/j.jnucmat.2021.152907

来源: Elsevier

【 摘 要 】

The spectral directional emissivity of Eurofer 97 is reported between 423 and 873 K for two surface states. Total hemispherical data has been calculated by numerical integration of the measured data and compared to the theoretical predictions based on electrical resistivity data. A semi-quantitative agreement between measured emissivity data and predicted values for Eurofer 97 and similar steels (Grade 91, F82H) has been found, despite larger differences in their resistivities. The reported values for the polished surface are shown to be comparable to data for Grade 91 steel and lower than the usually assumed ones in thermal budget modelling of the DEMO tokamak and other nuclear applications of this alloy. (c) 2021 Elsevier B.V. All rights reserved.

【 授权许可】

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