G0601-5-4 Spectroscopy of plasma in water

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Other Title
  • G0601-5-4 水中プラズマの分光測定(熱工学(5)プラズマ・熱現象)

Description

Since in-liquid plasma can be used in a liquid as a chemical reactor, it has an advantage in a treatment technology of a waste liquid and fuel gas production. The purpose of this research is to examine the basic characteristic of in-liquid plasma. In this research, a spectroscope is used for measuring the emission spectra of the in-liquid plasma. In-liquid plasma is generated by applying high-frequency (HF) irradiation of 27.12MHz into a pure water. As for the distribution of the emission intensities, of the emission intensities H and 0 are high in the vicinity of the plasma, where that of OH becomes high in the upper area of the plasma. Electron temperature has a distribution, and becomes the highest at the center of the plasma at 10kPa. The change of the electron temperature in the vertical direction is bigger than that in the horizontal direction. The electron temperature decreases with pressure increases.

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