熱音響理論の拡張 An Extension of the Thermoacoustic Theory

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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, 2002-04-25

    CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN

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各種コード

  • NII論文ID(NAID)
    10008203222
  • NII書誌ID(NCID)
    AN00333419
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03892441
  • NDL 記事登録ID
    6127065
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z15-388
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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