Stable Operation Region and Dynamic Behavior of Ar Pulse-Modulated Induction Thermal Plasma with Different Molecular Gases

• Tanaka Yasunori

  Kanazawa University

• Sakuta Tadahiro

  Kanazawa University

Bibliographic Information

Other Title

• 各種ガス混入大気圧パルス変調Ar誘導熱プラズマの安定維持範囲と過渡応答特性
• カクシュ ガス コンニュウ タイキアツ パルス ヘンチョウ Ar ユウドウ ネツ プラズマ ノ アンテイ イジ ハンイ ト カト オウトウ トクセイ

Abstract

The pulse-modulated induction thermal plasma (PMITP) was established in Ar gas with additional gases such as H₂, O₂, N₂ and CO₂ to investigate the effects of various gas inclusions upon the transient characteristics of thermal plasma. The dynamic response times of the thermal plasmas were estimated from the measured time-varying radiation intensity of Ar spectral line. Furthermore, time evolution of the Ar excitation temperature was determined by the two-line method. The results indicated that especially in Ar-CO₂ PMITP, decreasing lower current level in a modulation cycle raised the on-delay time which means a recovery time from low temperature state to high temperature one. In addition, the inclusion of CO₂ in Ar PMITP caused lower temperatures just before the on-operation compared with other gases used in the experiment.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 122 (5), 469-478, 2002

  The Institute of Electrical Engineers of Japan

Keywords

• Induction thermal plasma
• pulse-modulation
• dynamic response time
• Ar excitation temperature

Details

• CRID: 1390001204600027648
• NII Article ID: 130005404088
• NII Article ID: 120005347228
• NII Article ID: 10008218376
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms.122.469
• ISSN: 13475533
• ISSN: 03854205
• ISSN: http://id.crossref.org/issn/03854205
• ISSN: http://id.crossref.org/issn/13418939
• NDL BIB ID: 6152685
• Web Site: http://hdl.handle.net/2297/36213
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6152685
• Web Site: https://www.jstage.jst.go.jp/article/ieejfms/122/5/122_5_469/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed