高温希ガスプラズマを利用するディスク形ＭＨＤ発電機の発電特性に関する数値計算

DOI Web Site Web Site BIBCODE 被引用文献6件 参考文献17件

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タイトル別名
  • Numerical Simulation on Power Generation Characteristics of Disk MHD Generator with High-Temperature Inert Gas Plasma
  • コウオンキガスプラズマ オ リヨウ スル ディスクガタ MHD ハツデンキ ノ ハツデン トクセイ ニ カンスル スウチ ケイサン

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The power generation characteristics of a disk magnetohydrodynamics (MHD) generator with high temperature inert gas (argon) plasma have been examined by a time-dependent two-dimensional numerical simulation. The numerical simulation results based on the experimental conditions show that the enthalpy extraction ratio (= electrical output power/thermal input) can reach above 10%, which surely supports the reasonability of experimental result. Proper selection of working conditions, especially the inlet total gas temperature is necessary, since the gas temperature dominantly determines the electrical conductivity in the generator, unlike the conventional seeded plasma MHD generator. It is also found that the plasma is not in the recombination process but in the ionization process, where the ionization degree moderately increases along the flow.

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