Thermal conductivity measurements for n-hexane and n-heptane at elevated temperature and pressure

被引:0
|
作者
Chen, Yuxuan [1 ,2 ]
Xu, Wanlin [1 ]
Wang, Mengyi [2 ]
Zheng, Xiong [1 ]
机构
[1] Hunan Univ, Coll Mech & Vehicle Engn, Changsha 410082, Hunan, Peoples R China
[2] Shaanxi Yanchang Petr Grp Co Ltd, Gas Field Co, Yanan 716000, Shaanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
Thermal conductivity; N-hexane; N-heptane; Liquid; Transient hot-wire method; LIQUID-MIXTURES; DIFFUSIVITY; HYDROCARBONS; ALKANES; TOLUENE;
D O I
10.1016/j.fluid.2024.114273
中图分类号
O414.1 [热力学];
学科分类号
摘要
Thermal conductivity is a very important thermal property parameter in the process of hydrocarbons transportation, storage, combustion and cooling. Therefore, accurate thermal conductivity is important in the utilization of hydrocarbons. In this work, the thermal conductivity of n-hexane and n-heptane in the temperature range of 298.15 K similar to 523.15 K and pressure range of 0.1 MPa similar to 15.0 MPa was studied by using transient hot-wire method. In order to facilitate engineering application, function polynomials of temperature and pressure are fitted and correlated with experimental data. The average absolute error of the experimental data and fitting data of n-hexane and n-heptane are 0.72 and 0.61 %, respectively, which proves that the function polynomial can describe the experimental data well. In addition, we compare the collected literature data with our results and find that the literature data is very close to our results. This work is expected to expand the range of available data on the thermal conductivity of n-hexane and n-heptane and contribute to the industrial applications of these two substances.
引用
收藏
页数:6
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