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Heat Capacities of Fluids: The Performance of Various Equations of State
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-09-16 , DOI: 10.1021/acs.jced.0c00649 Chenyang Zhu 1, 2 , Xiangyang Liu 2 , Maogang He 2 , Georgios M. Kontogeorgis 1 , Xiaodong Liang 1
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-09-16 , DOI: 10.1021/acs.jced.0c00649 Chenyang Zhu 1, 2 , Xiangyang Liu 2 , Maogang He 2 , Georgios M. Kontogeorgis 1 , Xiaodong Liang 1
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Heat capacities are fundamental properties of fluids for heat transfer applications. Accurate data can be generally obtained by experimental methods, which are usually expensive, difficult, and time-consuming. In terms of the calculations of heat capacities, many models have been proposed in the literature. Equations of state represent one of the most promising methods, but their performance has not been systematically studied and extensively reviewed. In this work, the calculations and performance of various equations of state for heat capacities are reviewed, and the different contributions to heat capacities are also discussed. The accuracy of the calculated heat capacities, as presented in literature, is also compared for some specific compounds, and the effects of different parametrization strategies as well as association schemes are analyzed. Finally, calculations for both associating and nonassociating compounds are performed using two association models, Cubic Plus Association and Perturbed-Chain Statistical Associating Fluid Theory equations of state, for a wide range of compounds for which the heat capacity results from literature are available.
中文翻译：
流体的热容量：各种状态方程的性能
热容量是用于传热应用的流体的基本特性。通常可以通过实验方法获得准确的数据，这些方法通常很昂贵，困难且耗时。关于热容量的计算，文献中已经提出了许多模型。状态方程是最有前途的方法之一，但是其性能尚未得到系统的研究和广泛的审查。在这项工作中，对热容量的各种状态方程的计算和性能进行了综述，并讨论了对热容量的不同贡献。还比较了某些特定化合物的计算出的热容量的准确性（如文献所述），并分析了不同参数化策略以及关联方案的效果。最后，使用两种关联模型（立方加缔合态和扰动链统计缔合流体理论状态方程）对缔合和非缔合化合物进行计算，可以得到大量文献提供的热容量的化合物。
更新日期：2020-09-16
中文翻译：
流体的热容量：各种状态方程的性能
热容量是用于传热应用的流体的基本特性。通常可以通过实验方法获得准确的数据，这些方法通常很昂贵，困难且耗时。关于热容量的计算，文献中已经提出了许多模型。状态方程是最有前途的方法之一，但是其性能尚未得到系统的研究和广泛的审查。在这项工作中，对热容量的各种状态方程的计算和性能进行了综述，并讨论了对热容量的不同贡献。还比较了某些特定化合物的计算出的热容量的准确性（如文献所述），并分析了不同参数化策略以及关联方案的效果。最后，使用两种关联模型（立方加缔合态和扰动链统计缔合流体理论状态方程）对缔合和非缔合化合物进行计算，可以得到大量文献提供的热容量的化合物。
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