Comparative performance study of short and long induction plasma torches: A numerical approach

M. Rafiqul Alam, Feroza Begum, Quazi Delwar Hossain, M. Mofazzal Hossain, T. Watanabe

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

In developing the ITP (induction thermal plasma) source for the thermal modification of micro-particles, it is crucial to comprehensively explore the effects of plasma torch dimensions, effects of plasma discharge conditions and particle parameters. Considering the plasma-particle interactions and particle loading impacts, a interactive flow model for argon-oxygen mixed-gas plasma is developed to investigate the performances of short (ST:138 mm) and long (LT:190 mm) induction plasma torches. Solving the model numerically using control volume algorithm, we predicted the plasma isotherm, injected particle's temperature history, trajectory, velocity and diameter at any location along its flight path for both the torches. In this model, the plasma is in local thermal equilibrium (LTE) i.e the temperatures of electron and heavy particle (ion or neutral particle) are the same. From the plasma isotherms of argon-oxygen, it is observed that higher plasma temperature (around 8000K at the torch exit) is obtained in short torch, compared with that of in long torch (around 5000 K at the torch exit). It has also been noticed that more particle diameter shrinkage is occurred in short torch than that of long torch.

本文言語英語
ホスト出版物のタイトル2014 9th International Forum on Strategic Technology, IFOST 2014
出版社Institute of Electrical and Electronics Engineers Inc.
ページ511-515
ページ数5
ISBN(電子版)9781479960620
DOI
出版ステータス出版済み - 12 17 2014
イベント9th International Forum on Strategic Technology, IFOST 2014 - Cox's Bazar, バングラデシュ
継続期間: 10 21 201410 23 2014

出版物シリーズ

名前2014 9th International Forum on Strategic Technology, IFOST 2014

その他

その他9th International Forum on Strategic Technology, IFOST 2014
国/地域バングラデシュ
CityCox's Bazar
Period10/21/1410/23/14

All Science Journal Classification (ASJC) codes

  • エネルギー工学および電力技術
  • 土木構造工学
  • 建築および建設
  • 燃料技術
  • コンピュータ ネットワークおよび通信

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