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Fujiwara, Masayuki; Mizuta, Shunji;
JNC TN9400 2000-050, 19 Pages, 2000/04
JNC-TN9400-2000-050.pdf:0.82MB
For evaluating the fast reactor system technology, it is important to evaluate the practical feasibility of ODS ferritic cdaddings, which is the most promising matelials to attain the goal of high coolant temperature and more than 150 GWd/t. Based on the results of their technology development, mass production process with highly economically benefit as well as manufacturing cost estimation of ODS ferritic claddings were preliminarily conducted. From the view point of future utility scale, the cost for manufacturig mother tubes has a dominant factor in the total manufacturing cost. The method to reduce the cost of mother tube manufacturing was also preliminarily investigated.
; Haga, Kazuo
PNC TN9410 91-305, 20 Pages, 1991/09
Additional calculation was performed concerning "Study of Weight of Fast Reactor Power System for Deep Sea Research" (PNC ZN9410 91-176) published in 1991. In the above report, weight was calculated of power systems of 10kWe for an unmanned base located at the depth of water of 8,020m and of 20kWe for a research submersible diving to that of 10km. The power systems consisted of fast reactor systems and pressure hulls. The main points of the additional calculation were as follows. (1)The depth of water was not fixed, but treated as a parameter. (2)When the power systems will be used in future, some buoyancy material will be attached to the systems in order to make the weight of the systems zero in the sea water. The weight of the buoyancy material was also calculated in this report. (3)In the case of 10kWe power source, electric power was generated by eight sets of closed Brayton cycles of 1.3kWe, but two sets of 5kWe were used in this report. The additional calculation lead to the result that the total weight of the power systems at the depth of water containing the buoyancy material were 13.6t and 13.9t for 10kWe and 20kWe respectively.