熱音響理論の拡張

• 富永 昭

  筑波大学物理学系

書誌事項

タイトル別名

• An Extension of the Thermoacoustic Theory.
• ネツ オンキョウ リロン ノ カクチョウ

抄録

Although the thermoacoustic theory of the 20th century has succeeded in making a variety of thermoacoustic phenomena understood and contributed to the development of thermoacoustic devices, the application is shown to be limited to the ideal gas of the first kind; if the theory is applied to nonideal gas, the result violates the first and the second laws of thermodynamics in some limiting cases. A consideration of the postulated relationship between the entropy flow and the oscillating entropy leads to a proposal of a new relationship, which is an extension of the old relationship to general fluid, of which thermal expansion coefficient is not equal to the inverse of temperature. The new relationship modifies expressions of both progressive and standing wave components of the heat flow. Some effects of the extension on the explanation of refrigeration power at low temperatures are discussed. Also discussed is the possibility of thermoacoustic heat engine with the working fluid of a negative thermal expansion coefficient.

収録刊行物

• 低温工学

  低温工学 37 (4), 162-167, 2002

  公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)

キーワード

• thermoacoustics
• thermal expansion coefficient
• thermodynamics of nonequilibrium systems

詳細情報

• CRID: 1390282679591562624
• NII論文ID: 10008203222
• NII書誌ID: AN00333419
• DOI: 10.2221/jcsj.37.162
• ISSN: 18800408
• ISSN: 03892441
• ISSN: http://id.crossref.org/issn/03892441
• NDL書誌ID: 6127065
• Web Site: http://id.ndl.go.jp/bib/6127065
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6127065
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可