Application of in-flight melting technology by RF induction thermal plasmas to glass production

Yaochun Yao, M. M. Hossain, T. Watanabe, F. Funabiki, T. Yano

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


An innovative in-flight glass melting technology with induced thermal plasmas was developed for the purpose of energy conservation and environmental protection. Two-dimensional modeling was used to simulate the thermofluid fields in the plasma torch. The in-flight melting behavior of glass raw material was investigated by various analysis methods. Results showed that the plasma temperature was up to 10000 K with a maximum velocity over 30 m/s, which made it possible to melt the granulated glass raw material within milliseconds. The carbonates in the raw material decomposed completely and the compounds in the raw material attainted 100% vitrification during the in-flight time from the nozzle exit to substrate. The particle melting process is similar to the unreacted-core shrinking model.

Original languageEnglish
Pages (from-to)344-347
Number of pages4
JournalPlasma Science and Technology
Issue number3
Publication statusPublished - Jun 1 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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