Packing experiment of breeder pebbles into water cooled solid breeder test blanket module for ITER

详细信息    查看全文

• 作者：Takanori Hirose ; Yohji Seki ; Hisashi Tanigawa ; Hiroyasu Tanigawa ; Daigo Tsuru ; Mikio Enoeda ; Hisashi Serizawa ; Hiroto Yamaoka
• 关键词：Reduced activation ferritic/martensitic steel ; Blanket ; Ceramic breeder ; Pebble bed
• 刊名：Fusion Engineering and Design
• 出版年：2010
• 出版时间：December 2010
• 年：2010
• 卷：85
• 期：7-9
• 页码：1426-1429
• 全文大小：473 K

文摘

This paper describes an experiment in which Li₂TiO₃ tritium breeder pebbles were packed into a full-scale breeder pebble container (BPC) mockup. The BPC mockup, part of the Japanese water cooled solid breeder (WCSB) – Test Blanket Module (TBM) project, has been successfully developed using a reduced activation ferritic/martensitic steel, F82H. The BPC mockup was fabricated using a fiber laser welding technique, selected for its high focusing capability. Membrane panels, tube plates and side walls were joined by fiber laser welding to form the BPC. Its dimensions are 74 mm × 112 mm × 990 mm. It was confirmed to be gastight under pressurized helium up to 0.5 MPa. Packing tests were performed with real breeder material Li₂TiO₃ pebbles of 1 mm diameter. X-ray tomography revealed that dense packing was uniformly achieved throughout the BPC mockup.