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Mori, Takamasa; Okumura, Keisuke; Nagaya, Yasunobu; Nakakawa, Masayuki
Mathematics and Computation, Reactor Physics and Environmental Analysis in Nuclear Applications, 2, p.987 - 996, 1999/09
no abstracts in English
Nakakawa, Masayuki; Mori, Takamasa
Journal of Nuclear Science and Technology, 30(7), p.692 - 701, 1993/07
Times Cited Count：33 Percentile：92.41(Nuclear Science & Technology)no abstracts in English
Murakami, Yohei*; Mitsuyasu, Takeshi*; Miwa, Junichi*; Hino, Tetsushi*; Suyama, Kenya; Nagaya, Yasunobu
no journal, ,
A Monte Carlo code system has been developed to design an innovative water-cooled reactor, Resource-renewable Boiling Water Reactor (RBWR), which enables to burn transuranium elements (TRUs) efficiently. The system can perform multiphysics calculations of whole-core Monte Carlo neutronics, thermal-hydraulics and burnup; thus uncertainty induced by group-constant generation can be excluded. It has been confirmed that the pseudo material construct method can reduce memory requirement significantly and thus the reactor core design with whole core Monte Carlo calculations can be performed even with current computational resource.
Miwa, Junichi*; Hino, Tetsushi*; Mitsuyasu, Takeshi*; Nagaya, Yasunobu
no journal, ,
We performed whole-core Monte Carlo calculations for core design verification of an innovative BWR concept, resource-renewable boiling water reactor (RBWR). The calculations include a coupled neutronics/thermal-hydraulics calculation with a continuous-energy Monte Carlo code MVP and an inhouse thermal-hydraulics code, and a burnup calculation with the MVP-BURN code. Such calculations for the RBWR is challenging because it requires a large memory size and a large amount of calculation time. The typical memory size required for the RBWR calculations was an order of 10 GBytes per CPU in parallel computing using a desktop PC cluster. The total calculation time for calculating the characteristics of the equilibrium core of RBWR with the whole-core Monte Carlo burnup calculation using the desktop PC cluster was about 20 days. We demonstrated that the design calculations for the RBWR were possible with such a desktop PC cluster.
