A correlation to predict speed of sound in liquids: 1. n-Alkanes (≥C5) and their mixtures at high pressures

被引:7
|
作者
Padilla-Victoria, Hector [1 ]
Iglesias-Silva, Gustavo A. [1 ]
Ramos-Estrada, Mariana [2 ]
Hall, Kenneth R. [3 ]
机构
[1] Inst Tecnol Celaya, Dept Ingn Quim, Celaya 38010, Gto, Mexico
[2] Univ Michoacana, Fac Ingn Quim, Morelia 58000, Michoacan, Mexico
[3] Texas A&M Univ, Dept Chem Engn, College Stn, TX 77843 USA
关键词
Speed of sound; Correlation; n-Alkanes; Tait equation; High pressure; EXCESS MOLAR VOLUMES; ISENTROPIC COMPRESSIBILITIES; BINARY-MIXTURES; THERMODYNAMIC PROPERTIES; 298.15; K; ULTRASONIC SPEEDS; THERMOPHYSICAL PROPERTIES; REFRACTIVE-INDEXES; TEMPERATURE-DEPENDENCE; 100; MPA;
D O I
10.1016/j.fluid.2012.10.018
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper presents a correlation to predict the speed of sound of n-alkanes with a carbon number greater than or equal to five and their mixtures. The correlation for the speed of sound follows the form of the Tait equation with variables: temperature, pressure and equivalent carbon number of the mixture. Part of this equation is a correlation for the atmospheric pressure sound speed of n-alkanes. The average absolute percentage deviation of the atmospheric equation from the literature experimental speed of sound values is 0.1%. The Tait equation uses 3000 experimental points at high pressures and has an average absolute percentage deviation of 0.17% from experimental measurements. (c) 2012 Elsevier B.V. All rights reserved.
引用
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页码:119 / 127
页数:9
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