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Characteristics of Multi-Phase Alternating Current Arc for Glass In-Flight Melting

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Abstract

An innovative in-flight melting technology with multi-phase AC arc was developed for glass industry. The enthalpy probe and high speed video camera were used to characterize the temperature, velocity, and discharge behavior of multi-phase AC arc. The effects of input power and sheath gas flow rate on arc and melting behavior were investigated. Results show that the temperature and velocity on arc center are increased with input power or sheath gas flow increase. The fluctuation of luminance area ratio and coefficient of variation reflects the change of arc discharge behavior. High temperature of plasma enhances the melting of granulated raw particles during in-flight heating treatment. The shrinkage of particle and the volatilization degree of Na2O increase under a larger flow rate of sheath gas. The characterized arc behavior agrees with the melting behavior of glass raw materials, which can provide valuable guidelines for the process control of glass melting.

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Acknowledgments

The financial support provided by Energy Innovation Program of NEDO (New Energy and Industrial Technology Development Organization) is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology, Yokohama, 226-8502, Japan

    Yaochun Yao, Kazuyuki Yatsuda & Takayuki Watanabe

  2. Industrial Technology Center of Fukui Prefecture, 61 Kawai-Washizuka, Fukui, 190-0102, Japan

    Tsugio Matsuura

  3. Department of Chemistry and Materials Science, Tokyo Institute of Technology, Tokyo, 152-8550, Japan

    Tetsuji Yano

Authors
  1. Yaochun Yao
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  2. Kazuyuki Yatsuda
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  3. Takayuki Watanabe
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  4. Tsugio Matsuura
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  5. Tetsuji Yano
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Corresponding author

Correspondence to Takayuki Watanabe.

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Yao, Y., Yatsuda, K., Watanabe, T. et al. Characteristics of Multi-Phase Alternating Current Arc for Glass In-Flight Melting. Plasma Chem Plasma Process 29, 333–346 (2009). https://doi.org/10.1007/s11090-009-9182-2

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  • DOI: https://doi.org/10.1007/s11090-009-9182-2

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