Assessment of Spherical Tokamak Reactors Comparing with Other Fusion Power Plants

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概要

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• The 1-GWe D-T normal-conducting spherical tokamak (ST) reactor is designed using PEC (Physics-Engineering-Cost) system code, and is compared with conventional superconducting tokamak reactor (TR) and other fusion reactors. Especially two reference ST designs and one reference TR design are defined, and their design and environmental parameters are compared. It is found that the cost of electricity (COE), the life-cycle CO2 emission rate and the energy payback ratio (EPR) strongly depend on plasma aspect ratio in ST designs, in contrast to TR designs which are insensitive to plasma aspect ratio. The clarification of plasma beta and confinement improvement factor in ST plasmas is crucial for searching for optimized reactor designs.

• 2012-07-01

著者

• NAGAYAMA Yoshio

  National Insitute for Fusion Science

• Yamazaki Kozo

  Department Of Nuclear Engineering Faculty Of Engineering University Of Tokyo

• Arimoto Hideki

  Department Of Energy Engineering And Science Nagoya University

• Oishi Tetsutarou

  Department Of Quantum Engineering And System Science Graduate School Of Engineering The University O

• Oishi Tetsutarou

  Nagoya University

• Nagayama Yoshio

  National Institute For Fusion Science

• Arimoto Hideki

  Nagoya University

• YAMAZAKI Kozo

  Nagoya University

• BAN Kanae

  Department of Energy Engineering and Science, Nagoya University

• KONDO Takuya

  Department of Energy Engineering and Science, Nagoya University

• Ban Kanae

  Department Of Energy Engineering And Science Nagoya University

• Kondo Takuya

  Department Of Energy Engineering And Science Nagoya University

• OISHI Tetsutarou

  Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8093, Japan

• OISHI Tetsutarou

  Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University

• YAMAZAKI Kozo

  Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University

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• Extension of Improved Particle and Energy Confinement Regime in the Core of LHD Plasma
• Clustered Data Storage for Multi-Site Fusion Experiments
• Experiments on Runaway Electrons in a Toroidal Plasma
• Second Order Effect of a High-β Tokamak Equilibrium
• Environmental and Economical Assessment of Various Fusion Reactors by the Calculation of CO2 Emission Amounts
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• Transport Analysis of High-Z Impurities Including Sawtooth Effects in a Tokamak System
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• Internal Transport Barrier Formation and Pellet Injection Simulation in Helical and Tokamak Reactors
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