Current status of research and development on system integration technology for connection between HTGR and hydrogen production system at JAEA

Ohashi, Hirofumi ; Inaba, Yoshitomo  ; Nishihara, Tetsuo ; Takeda, Tetsuaki; Hayashi, Koji; Inagaki, Yoshiyuki

Japan Atomic Energy Agency (JAEA) has been promoting R&D on the hydrogen production technology with a High Temperature Gas-cooled Reactor (HTGR). Research on the system integration technology has been carried out about four items, that is, (a) control technology to keep reactor operation against thermal disturbance caused by the hydrogen production system, (b) estimation of tritium permeation from reactor to hydrogen, (c) countermeasure against explosion and (d) development of high temperature valve to isolate reactor and hydrogen production systems in accidents. This report describes current status of research activities on the system integration technology at JAEA.