Thermal conductivity measurements for long-chain n-alkanes at evaluated temperature and pressure: n-dodecane and n-tetradecane

被引:19
作者
Zheng, Xiong [1 ]
Bao, Yanqiong [1 ]
Qu, Dan [1 ]
Wu, Jing [1 ]
Qin, Guangzhao [1 ]
Liu, Yu [2 ]
机构
[1] Hunan Univ, Coll Mech & Vehicle Engn, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China
[2] Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ China, Chongqing 400044, Peoples R China
基金
中国国家自然科学基金;
关键词
Transient hot-wire meothod; Thermal conductivity; n-Dodecane; n-Tetradecane; Liquid; SPEED; SOUND; DENSITY; BINARY; HEAT;
D O I
10.1016/j.jct.2021.106566
中图分类号
O414.1 [热力学];
学科分类号
摘要
With the key role of long-chain hydrocarbons in the wide applications in numerous industrial areas, such as working fluids, phase change materials, fuels, etc., the knowledge of the thermal conductivity of hydrocarbons is essential in the energy conversion process. Thus, it is of great significance to get reliable experimental data of hydrocarbons' thermal conductivity for further accurately theoretical predictions and the potential applications. In this work, the thermal conductivities of two long-chain hydrocarbons of ndodecane and n-tetradecane, are investigated experimentally. The transient hot-wire method was used for the measurement of the thermal conductivity under the conditions of 293-523 K and 0.1- 15.0 MPa. By comparing the present work with literature results, the possible reasons for the deviations were analyzed. The results in this study provide accurately measured of the thermal conductivity of the two long-chain hydrocarbons at high temperature and pressure, which are expected to fill the gap in literature. (c) 2021 Elsevier Ltd.
引用
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页数:8
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