Toward a group contribution method for determination of speed of sound in saturated liquids

被引：1
|
作者：
Gharagheizi, Farhad [1 ,2 ]
Ilani-Kashkouli, Poorandokht [1 ,2 ]
Mohammadi, Amir H. [1 ,3 ]
Ramjugernath, Deresh [1 ]
机构：
[1] Univ KwaZulu Natal, Sch Engn, Thermodynam Res Unit, ZA-4041 Durban, South Africa
[2] Islamic Azad Univ, Buinzahra Branch, Dept Chem Engn, Buinzahra, Iran
[3] IRGCP, Paris, France
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2014年 / 194卷
基金：
新加坡国家研究基金会;
关键词：
Saturated liquid; Speed of sound; Group contribution; Support vector machine; ThermoData Engine; THERMODYNAMIC QUANTITIES; PRESSURES; VELOCITIES;
D O I：
10.1016/j.molliq.2014.01.020
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, a group contribution model is presented for the estimation of the saturated liquid speed of sound of pure chemical compounds. A data set comprised of 1667 experimental data for 74 chemical compounds was extracted from the NIST Thermo Data Engine and used to develop and test the model. The least squares support vector machine-group contribution (LSSVM-GC) model uses the occurrences of a set of 43 chemical substructures (to constitute a compound) in addition to temperature to represent/predict the saturated liquid speed of sound. The proposed model produces a low average absolute relative deviation (AARD) of less than 0.6% taking into consideration all 1667 experimental data values. (c) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：159 / 165
页数：7
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