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引用次数: 0
摘要
本文介绍了气体-1,3,3,3-四氟丙烯(R1234ze(Z))中的声速测量结果。测量使用准球形声共振器进行,温度介于 307 K 和 420 K 之间,压力高达 1.8 MPa。根据测量结果直接计算了同一温度范围内的理想气体热容量和声学病毒系数。我们测定的 R1234ze(Z) 的声速 $w$($p$,$T$)的相对精度约为 $\pm$ 0.02%。理想气体热容比 ${{gamma}^{0}$($T$)的测定精度约为 $/pm$ 0.25%。研究发现,这些数据与 R1234ze(Z)的基本状态方程的预测基本一致。
Speed of sound in gaseous cis-1,3,3,3-tetrafluoropropene (R1234ze(Z)) between 307 K and 420 K
Measurements of the speed of sound in gaseous
cis-1,3,3,3-tetrafluoroprop-1-ene, (R1234ze(Z)), are presented. The
measurements were performed using a quasi-spherical acoustic resonator at
temperatures between 307 K and 420 K and pressures up to 1.8 MPa. Ideal-gas
heat capacities and acoustic virial coefficients over the same temperature
range were directly calculated from the results. The relative accuracy of our
determinations of the speed of sound $w$($p$,$T$) of R1234ze(Z) was
approximately $\pm$ 0.02%. The accuracy of the determination of the ideal gas
heat capacity ratio ${\gamma}^{0}$($T$) was approximately $\pm$ 0.25%. These
data were found to be mostly consistent with the predictions of a fundamental
equation of state of R1234ze(Z).