($CO_{2}$ + $C_{3}H_{8}$) 混合物的声速和相平衡

arXiv - PHYS - Chemical Physics Pub Date : 2024-09-06 DOI:arxiv-2409.04083

Daniel Lozano-Martín, Rodrigo Susial, Pedro Hernández, Teresa E. Fernández-Vicente, M. Carmen Martín, José J. Segovia

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引用次数: 0

摘要

本研究给出了 (0.60$CO_{2}$ + 0.40$C_{3}H_{8}$) 和 (0.80$CO_{2}$ + 0.20$C_{3}H_{8}$) 二元混合物的相包络和声速数据。使用工作在微波波段的圆柱形谐振器测量相平衡，而声学谐振器则用于声速测量。实验结果与 GERG-2008 状态方程进行了比较，得出相平衡数据与压力的平均绝对偏差为 0.24%，声速数据与压力的平均绝对偏差为 0.025%。声速值用于推导完全气体热容、声学维里系数和第二密度维里系数。此外，还针对声速得出的结果检查了 AGA8-DC92 状态方程的性能。

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Speed of sound and phase equilibria for ($CO_{2}$ + $C_{3}H_{8}$) mixtures

This work presents phase envelope and speed of sound data for the (0.60 $CO_{2}$ + 0.40 $C_{3}H_{8}$) and (0.80 $CO_{2}$ + 0.20 $C_{3}H_{8}$) binary mixtures. Phase equilibria was measured using a cylindrical resonator working in the microwave band whereas an acoustic resonator was used for speed of sound measurements. The experimental results were compared with GERG-2008 equation of state, obtaining average absolute deviations by 0.24% in pressure for phase equilibria data and 0.025% for speed of sound data. Speed of sound values were used to derive perfect-gas heat capacities, acoustic virial coefficients, and second density virial coefficients. In addition, AGA8-DC92 equation of state performance was checked for the results derived from speeds of sound.

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arXiv - PHYS - Chemical Physics

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