HTTR hydrogen production system structure and main specifications of mock-up test facility (Contract research)

Kato, Michio; Hayashi, Koji; Aita, Hideki; Ohashi, Hirofumi ; Sato, Hiroyuki  ; Inaba, Yoshitomo  ; Iwatsuki, Jin ; Takada, Shoji; Inagaki, Yoshiyuki

The mock-up test facility was fabricated to investigate performance of the steam generator for mitigation of the temperature fluctuation of helium gas and transient behavior of the hydrogen production system for HTTR and to obtain experimental data for verification of a dynamic analysis code. The test facility has an approximate hydrogen production capacity of 120Nm/h and the steam reforming process of methane; CH+HO=3H+CO, was used for hydrogen production of the test facility. An electric heater was used as a heat source instead of the reactor in order to heat helium gas up to 880 C (4MPa) at the chemical reactor inlet which is the same temperature as the HTTR hydrogen production system. Fabrication of the test facility was completed in February in 2002, and seven cycle operations were carried out from March in 2002 to December in 2004. This report describes the structure and main specifications of the test facility.