抄録
The high temperature gas cooled reactor can supply hot helium gas whose temperature is about 950℃ for not only power generation but also process heat in the chemical industry. JAERI has conducted the conceptual design on the HTTR steam reforming hydrogen production system. This system can achieve the hydrogen production rate of 410m^3/h per process heat of 1MW and it is competitive to the conventional plant. Furthermore thermal transients of helium gas induced by some troubles in the hydrogen production plant can be mitigated passively by using the steam generator integrated with radiator so that this system can continue normal operation.
