Manufacturing of small-scale mock-ups and of a semi-prototype the ITER Normal Heat Flux First Wall

作者：Banetta S^*; Zacchia F; Lorenzetto P; Bobin Vastra I; Boireau B; Cottin A; Mitteau R; Eaton R; Raffray R

来源：Fusion Engineering and Design, 2014, 89(7-8): 970-974.

DOI：10.1016/j.fusengdes.2014.04.020

• ITER First Wall
• Manufacturing
• Hot Isostatic Pressing

This paper describes the manufacturing development and fabrication of reduced scale ITER First Wall (FW) mock-ups of the Normal Heat Flux (NHF) design, including a "semi-prototype" with a dimension of 305 mm x 660 mm, corresponding to about 1/6 of a full-scale panel. The activity was carried out in the framework of the pre-qualification of the European Domestic Agency (EU-DA or F4E) for the supply of the European share of the ITER First Wall. The hardware consists of three Upgraded (2 MW/m(2)) Normal Heat Flux (U-NHF) small-scale mock-ups, bearing 3 beryllium tiles each, and of one Semi-Prototype, representing six full-scale fingers and bearing a total of 84 beryllium tiles.
The manufacturing process makes extensive use of Hot Isostatic Pressing, which was developed over more than a decade during ITER Engineering Design Activity phase. The main manufacturing steps for the semi-prototype are described, with special reference to the lessons learned and the implications impacting the future fabrication of the full-scale prototype and the series which consists of 218 panels plus spares.
In addition, a "tile-size" mock-up was manufactured in order to assess the performance of larger tiles. The use of larger tiles would be highly beneficial since it would allow a significant reduction of the panel assembly time.

• 出版日期2014-10
• 单位AREVA NP