Speed of sound measurements of two binary natural gas mixtures (methane plus n-butane and methane plus isopentane) at cryogenic temperatures and in liquid phase

被引：1
|
作者：
Cavuoto, G. [1 ]
Albo, P. A. Giuliano [1 ]
Lago, S. [1 ]
机构：
[1] Ist Nazl Ric Metrol INRiM, Str Cacce 91, I-10135 Turin, Italy
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2023年 / 176卷
关键词：
Speed of sound; Liquefied; Natural gas; Mixtures; Cryogenic; High pressure; THERMODYNAMIC PROPERTIES; PRESSURES; DENSITY; WATER;
D O I：
10.1016/j.jct.2022.106906
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents accurate speed of sound measurements in two specific single-phase liquefied natural gas mixtures (methane + isopentane and methane +n-butane) for temperatures ranging from (100 to 160) K and pressures up to 12 MPa, with expanded relative uncertainties (k = 2) between (0.27 and 0.35) % for methane + n-butane and between (0.26 and 0.30) % for the methane + isopentane. These measurements have been obtained using the double pulse-echo technique. The experimental results of these measurements were compared with the values predicted by the GERG-2008 model and the most recent fundamental equation of state for the calculation of thermodynamic properties of liquefied natural gases, EOS-LNG.
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页数：11
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