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圆柱定程干涉法确定工质的第二维里系数 被引量：5

Determination of the second virial coefficient for working fluid using a cylindrical resonator
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摘要 通过圆柱定程干涉法测量了Ar在270～333.15K,压力至1000kPa的声学共振频率,修正了热边界层、黏性边界层、声波导管、壳体振动等非理想因素对共振频率测量的影响。通过拟合声学共振频率获得了Ar的第二声速维里系数,实验结果与文献中圆球定程干涉法的测量结果具有较好的一致性。通过第二声速维里系数回归了方阱势能模型的参数,根据回归结果计算了Ar的第二维里系数,在150～450K范围与标准状态方程的计算偏差小于0.4cm3.mol-1。通过圆柱定程干涉法确定的第二维里系数与圆球定程干涉法的精度相当。 The acoustic resonance frequencies were measured for argon from 270 to 333.15 K and pressures up to 1000 kPa using a cylindrical resonator.The perturbations in frequency measurements from thermal and viscous boundary layers,the fill duct and shell motions were corrected.The second acoustic virial coefficients were obtained by fitting the measured acoustic data.The results agree well with the experimental results by using spherical resonators.The second virial coefficients were determined by fitting the second acoustic virial coefficient and the square-well intermolecular model.The deviation of this work from the calculated value using the equation of state developed by Tegeler et al.is lower than 0.4 cm3·mol-1.The results show that the second virial coefficient can be determined using cylindrical resonators with low uncertainties.
作者 刘强 冯晓娟 段远源
机构地区 清华大学热科学与动力工程教育部重点实验室 中国计量科学研究院热工所
出处 《化工学报》 EI CAS CSCD 北大核心 2013年第8期2711-2717,共7页 CIESC Journal
基金 国家自然科学基金项目(51076074 51106143)~~
关键词 第二维里系数 圆柱定程干涉法 气相声速 AR second virial coefficient cylindrical resonator gaseous speed of sound argon
分类号 TK123 [动力工程及工程热物理—工程热物理]
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参考文献5

二级参考文献37

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共引文献40

同被引文献73

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引证文献5

二级引证文献13

化工学报
2013年 第8期

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