Neutronics and pumping power analyses on the Tokamak reactor for the fusion-biomass hybrid concept

Kenzo Ibano, Ryuta Kasada, Yasushi Yamamoto, Satoshi Konishi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The authors aim to develop a fusion-biomass combined plant concept with a small power fusion reactor. A concern for the small power reactor is the coolant pumping power which may significantly decreases the apparent energy outcome. Thus pressure loss and corresponding pumping power were studied for a designed Tokamak reactor: GNOME. First, 3-D Monte-Carlo Neutron transport analysis for the reactor model with dual-coolant blankets was taken in order to simulate the tritium breeding ability and the distribution of nuclear heat. Considering calculated concentration of nuclear heat on the in-board blankets, pressure loss of the liquid LiPb at coolant pipes due to MHD and friction forces was analyzed as a function of fusion power. It was found that as the fusion power increases, the pressure loss and corresponding pumping power exponentially increase. Consequently, the proportion of the pumping power to the fusion power increases as the fusion power increases. In case of ∼360 MW fusion power operation, pumping power required for in-board cooling pipes was estimated as ∼1% of the fusion power.

Original languageEnglish
Pages (from-to)2881-2884
Number of pages4
JournalFusion Engineering and Design
Issue number11
Publication statusPublished - 2013 Nov
Externally publishedYes


  • Blanket
  • Divertor
  • LiPb
  • Neutronics
  • Pressure drop

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering


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