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Proceedings Paper

Thermal-cycling experiments of monoblock divertor mockups for international thermonuclear experimental reactor
Author(s): Masato Akiba; Satoshi Suzuki; Masanori Araki
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Paper Abstract

Conceptual design of an International Thermonuclear Experimental Reactor (ITER) was underway from 1988 to 1990 and an engineering design of ITER started in 1992. Diverter plates of ITER are exposed to severe heat loads and particle fluxes from fusion plasma. A peak heat flux of the diverter plates is estimated at 15 to 30 MW/m2. In the present study, monoblock diverter mock-ups have been manufactured and tested in an electron beam test facility in JAERI, which consist of carbon reinforced carbon composite (CFC) materials brazed directly on an OFHC copper tube. Thermal cycling experiments have been carried out with a peak heat flux of 15 MW/m2. It has been successfully demonstrated that the present design of the ITER diverter plate can endure a stationary heat load of 15 MW/m2 for more than 1000 cycles. Brazing interfaces between the CFC armors and cooling tubes were investigated after the tests.

Paper Details

Date Published: 25 February 1993
PDF: 6 pages
Proc. SPIE 1739, High Heat Flux Engineering, (25 February 1993); doi: 10.1117/12.140524
Show Author Affiliations
Masato Akiba, Japan Atomic Energy Research Institute (Japan)
Satoshi Suzuki, Japan Atomic Energy Research Institute (Japan)
Masanori Araki, Japan Atomic Energy Research Institute (Japan)

Published in SPIE Proceedings Vol. 1739:
High Heat Flux Engineering
Ali M. Khounsary, Editor(s)

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