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Speed of Sound of Gaseous Xenon in the Temperature Range from 308 to 370 K Measured with a Cylindrical Resonator
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-01-14 , DOI: 10.1021/acs.jced.9b00964 Kai Zhang 1 , Hongyu Chen 1 , Yuanyuan Duan 1 , Zhen Yang 1
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-01-14 , DOI: 10.1021/acs.jced.9b00964 Kai Zhang 1 , Hongyu Chen 1 , Yuanyuan Duan 1 , Zhen Yang 1
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The availability of accurate speed of sound data is important for the improvement of dedicated equations of state and their applications. The speed of sound of gaseous xenon was measured using a fixed-path cylindrical acoustic resonator in the temperature range from 308 to 370 K with pressures from 0.05 to 1 MPa. The resonant frequencies of four longitudinal acoustic modes and three radial acoustic modes in the cylindrical resonator were used to determine the speed of sound. The perturbations from the viscous and the thermal boundary layers, the gas filling duct, acoustic transducers, and the shell motions were corrected in the frequency measurements. The overall uncertainty for the measured speed of sound was estimated to be less than 1.1 × 10–4. The measured speed of sound data of xenon was found to be in remarkably good agreement with the best available literature source, which were indistinguishable within ±5 × 10–5 times the speed of sound. The measurements agree with the values calculated from the equation of state with relative differences ranged between 0.004% and 0.04%. The temperature-dependent second density virial coefficient of xenon was determined from the measured speed of sound data based on the hard-core square-well intermolecular potential model. The deduced second virial coefficient is mainly consistent with the previous measurements, the predictions of an existing equation of state, and the general virial coefficient correlation.
中文翻译：
圆柱形谐振腔测得的308至370 K温度范围内气态氙的声速
声音数据的准确速度的可用性对于改进专用状态方程及其应用非常重要。气态氙的声速是使用固定路径的圆柱形声谐振器在308至370 K的温度范围内，压力从0.05至1 MPa的条件下测量的。圆柱谐振器中的四个纵向声学模式和三个径向声学模式的谐振频率用于确定声速。在频率测量中校正了来自粘性和热边界层，充气管道，声换能器和壳运动的扰动。测得的声音速度的总体不确定性估计小于1.1×10 –4。发现氙气的声音数据的测量速度与现有的最佳文献资料非常吻合，后者在声音速度的±5×10 –5倍之间是无法区分的。测量结果与根据状态方程计算的值相符，相对差在0.004％和0.04％之间。基于硬核方阱分子间电势模型，根据测得的声音数据的速度确定氙的温度相关第二密度维里系数。推导的第二维里系数主要与先前的测量结果，现有状态方程的预测以及一般维里系数的相关性相一致。
更新日期：2020-01-15
中文翻译：
圆柱形谐振腔测得的308至370 K温度范围内气态氙的声速
声音数据的准确速度的可用性对于改进专用状态方程及其应用非常重要。气态氙的声速是使用固定路径的圆柱形声谐振器在308至370 K的温度范围内，压力从0.05至1 MPa的条件下测量的。圆柱谐振器中的四个纵向声学模式和三个径向声学模式的谐振频率用于确定声速。在频率测量中校正了来自粘性和热边界层，充气管道，声换能器和壳运动的扰动。测得的声音速度的总体不确定性估计小于1.1×10 –4。发现氙气的声音数据的测量速度与现有的最佳文献资料非常吻合，后者在声音速度的±5×10 –5倍之间是无法区分的。测量结果与根据状态方程计算的值相符，相对差在0.004％和0.04％之间。基于硬核方阱分子间电势模型，根据测得的声音数据的速度确定氙的温度相关第二密度维里系数。推导的第二维里系数主要与先前的测量结果，现有状态方程的预测以及一般维里系数的相关性相一致。
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