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; Haga, Kazuo
PNC TN9410 91-256, 41 Pages, 1991/09
Study was performed on UT-3 thermochemical method and a high temperature steam electrolysis method using a solid electrolyte which were hydrogen production methods to use effectively thermal energy from a high temperature fast reactor(HTFR). For the former, the concept of hydrogen production plant system was studied for the first time and hydrogen production cost was calculated by using the concept. Present status of research was studied for the latter. The former is a very attractive hydrogen production method from the point of effective use of the thermal energy produced by the HTFR but it has big problems to be solved before commercialization. The latter, which is one of improved electrolysis methods, does not have attractiveness as large as the former in the point of thermal energy utilization, but it seems not to have unsolved problems as difficult as the former.
; Haga, Kazuo; Sekiguchi, Nobutada
PNC TN9410 91-126, 118 Pages, 1991/03
A conceptual design study has been performed in order to establish an outline image of the High Temperature Fast Reactor (HTFR) which has been aimed to produce the hydrogen as a most promising energy source in 21st century. The study covers the following systems. (1)Reactor system (2)Cooling system (3)Safety system and containment From results of the study, the concepts of the compactized reactor system and the heat exchanging system has been presented. Based on the concept obtained, a preliminary estimate of the cost of hydrogen produced by the HTFR was also conducted in another report. Result revealed that the cost is compatible with that by the High Temperature Gas-cooled Reactor (HTG CR) already published.
