Fabrication of nitrogen trapping test loop for IFMIF-EVEDA

• Published in: Fusion engineering and design Vol. 86; no. 9; pp. 2678 - 2681
• Main Authors: Yagi, Juro, Ban-nai, Mikiko, Suzuki, Akihiro, Terai, Takayuki, Nakamura, Kazuyuki, Kondo, Hiroo, Ida, Mizuho, Kanemura, Takuji, Furukawa, Tomohiro, Hirakawa, Yasushi, Anzai, Masaaki
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.2011; Elsevier
• Subjects: Applied sciences; Circulation; Controled nuclear fusion plants; Dynamic tests; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Ferrous alloys; Fe–Ti alloy; IFMIF-EVEDA; Installations for energy generation and conversion: thermal and electrical energy; Intermetallic compounds; Liquid lithium; Lithium; Lithium loop; Nitrogen hot trap; Pebble bed; Pumps; Trapping; Fe–Ti alloy; IFMIF-EVEDA; Nitrogen hot trap; Lithium loop; Nuclear fusion reactor; Fe-Ti alloy; Trapping; Lithium; Iron; High temperature; Nitrogen; Contamination; Pump
• ISSN: 0920-3796; 1873-7196
• DOI: 10.1016/j.fusengdes.2011.01.096

Nitrogen trapping is a key technology for liquid lithium usage, but has not been well investigated in dynamic conditions. Based on IFMIF (International Fusion Material Irradiation Facility)-EVEDA (Engineering Validation Engineering Design Activities), the nitrogen-trapping loop was designed and fabricated at The University of Tokyo. Lithium in the loop can be heated up to 600 °C and is circulated by a mechanical pump. The pump, which works in high temperature lithium, is newly developed as well. Nitrogen trapping material, such as the Fe–Ti alloy pebble, can be installed as a pebble bed column similar to that of the EVEDA nitrogen trap. In order to avoid contamination by air, all of the components are installed in a vacuum vessel or in a vacuum glove box.