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Study of acoustical properties of supercritical carbon dioxide using liquid acoustical theory

Lu Yi-Gang Peng Jian-Xin

Study of acoustical properties of supercritical carbon dioxide using liquid acoustical theory

Lu Yi-Gang, Peng Jian-Xin
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Publishing process
  • Received Date:  11 May 2007
  • Accepted Date:  23 June 2007
  • Published Online:  05 January 2008

Study of acoustical properties of supercritical carbon dioxide using liquid acoustical theory

  • 1. 华南理工大学物理科学与技术学院,广州 510640

Abstract: Molar sound velocity, molar adiabatic compressibility and Van der Waals constant of gaseons, liquid and supercritical carbon dioxide at different temperature and pressure are calculated using liquid acoustical models and data of sound velocity, density, molar volume and adiabatic compressibility of carbon dioxide provided by National Institute of Standards and Technology, USA. The results show that the liquid acoustical models can be used in study acoustical property of supercritical carbon dioxide in wide ranges of temperature and pressure. The surface tension, conglutination and diffusivity at different temperatures and pressures are calculated. And the mutative rules of these physical quantities are analyzed. The data can provide reference for supercritical liquid technique.

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