A system dynamics model for stock and flow of tritium in fusion power plant

作者：Kasada Ryuta^*; Kwon Saerom; Konishi Satoshi; Sakamoto Yoshiteru; Yamanishi Toshihiko; Tobita Kenji

来源：Fusion Engineering and Design, 2015, 98-99: 1804-1807.

DOI：10.1016/j.fusengdes.2015.03.047

• Fusion reactor
• Tritium
• Fuel cycle
• System dynamics

In order to analyze self-efficiency of tritium fuel cycle (TFC) and share the systems thinking of TFC among researchers and engineers in the vast area of fusion reactor technology, we develop a system dynamics (SD) TFC model using a commercial software STELLA. The SD-TFC model is illustrated as a pipe diagram which consists of tritium stocks, such as plasma, fuel clean up, isotope separation, fueling with storage and blanket, and pipes connecting among them. By using this model, we survey a possibility of D-D start-up without initial loading of tritium on two kinds of fusion plant having different plasma parameters. The D-D start-up scenario can reduce the necessity of initial loading of tritium through the production in plasma by D-D reaction and in breeding blanket by D-D neutron. The model is also used for considering operation scenario to avoid excess stock of tritium which must be produced at tritium breeding ratio over unity.

• 出版日期2015-10