Non-equilibrium MHD Power Generation using Non-seeded Argon Plasma

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概要

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• Experiments have been made in a shock tunnel non-equilibrium MHD power generator using non-seeded argon plasma. A linear generator with constant cross section and a diverging generator with diverging cross section have been used for the experiments. The main purpose of the experiments is to observe the effects of J × B force on the plasma flow when large powers are extracted from the generator. As the result, the MHD power generator performance is shown to be well described by the two temperature theory with considerations of Coulomb collision, the segmentation of the electrodes, the electrode voltage drops and J × B force effects. In the linear generator, the reflected shock wave was observed at the interaction parameter 5 and the distribution of the steady current was affected by the shock wave. The enthalpy extraction efficiency reached 4 % in the linear duct. When this efficiency is above 1%, J × B force effects become appreciable.

• 一般社団法人日本機械学会の論文

著者

• Kawamura Yoshio

  Central Research Lab. Hitachi Co. Ltd.

• MIYATA Masahiko

  Department of Engineering, Keio University

• Miyata Masahiko

  Department Of Engineering Keio University

• Miyata Masahiko

  Department Of Clinical Research Kure National Hospital

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