Thermophysical properties of biodiesel fuels from modified perturbed hard trimer chain equation of state

IF 1.1 4区工程技术 Q4 Engineering

High Temperatures-high Pressures Pub Date : 2022-01-01 DOI:10.32908/hthp.v51.1099

Negar Parvizi, F. Akbari, M. Alavianmehr, D. Mohammad-Aghaie

引用次数: 0

Abstract

In the present study, a modified version of the perturbed hard trimer chain equation of state was employed to predict thermophysical properties of fatty acid methyl ester (FAME) and fatty acid ethyl ester (FAEE) systems. The thermophysical properties in question are liquid density, vapor pressure, heat capacity, viscosity and thermal conductivity. The predictive power of the model has been assessed by calculating the aforementioned thermophysical properties and comparing with experimental ones as well as other models. Typically, the overall average absolute relative deviation (AARD in %) of the predicted densities for 1665 data points was found to be 2.57%. Simplicity and good agreement between the experimental data and those calculated from the present model, are the reasons for applicability of proposed model with sufficient accuracy for engineering applications. The capability of this new equation of state in predicting both thermodynamic and transport properties simultaneously with good accuracies is really prominent.

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由改性扰动硬三聚体链状态方程研究生物柴油燃料的热物理性质

本研究采用一种改进的微扰硬三聚链状态方程来预测脂肪酸甲酯(FAME)和脂肪酸乙酯(FAEE)体系的热物理性质。所讨论的热物理性质是液体密度、蒸汽压、热容、粘度和导热系数。通过计算上述热物性，并与实验值及其他模型进行比较，对模型的预测能力进行了评价。在典型情况下，对1665个数据点的预测密度的总体平均绝对相对偏差(AARD in %)为2.57%。该模型的计算结果与实验数据吻合较好，计算结果简单，具有较高的工程应用精度。这种新的状态方程能够同时准确地预测热力学和输运性质，这是非常突出的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Temperatures-high Pressures THERMODYNAMICS-MECHANICS

CiteScore

1.00

自引率

9.10%

发文量

期刊介绍： High Temperatures – High Pressures (HTHP) is an international journal publishing original peer-reviewed papers devoted to experimental and theoretical studies on thermophysical properties of matter, as well as experimental and modelling solutions for applications where control of thermophysical properties is critical, e.g. additive manufacturing. These studies deal with thermodynamic, thermal, and mechanical behaviour of materials, including transport and radiative properties. The journal provides a platform for disseminating knowledge of thermophysical properties, their measurement, their applications, equipment and techniques. HTHP covers the thermophysical properties of gases, liquids, and solids at all temperatures and under all physical conditions, with special emphasis on matter and applications under extreme conditions, e.g. high temperatures and high pressures. Additionally, HTHP publishes authoritative reviews of advances in thermophysics research, critical compilations of existing data, new technology, and industrial applications, plus book reviews.