| 拟稳态法测定气相扩散系数 |
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| 引用本文： | 谷和平,肖人卓.拟稳态法测定气相扩散系数[J].陶瓷科学与艺术,1993(3). |
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| 作者姓名： | 谷和平 肖人卓 |
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| 作者单位： | 南京化工学院化学工程系，南京化工学院化学工程系 |
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| 摘 要： | 根据拟稳态一维扩散原理,建立了气相扩散系数的测定装置。在该装置上,测定了8个体系的气相扩散系数,其中CH_2Cl_2-空气,CH_2Cl_2-H_2,CH_3CH_2Br-空气,CH_3Cl_2Br-H_2,CHCl_3-H_2等5个体系的气相扩散系数实验值,迄今尚未见文献报道。实验结果表明,本测试装置稳定性好,实验误差小,实验装置体积小,测试过程较为简便。
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| 关 键 词： | 扩散 拟稳态扩散 气相扩散系数 传质 |
MEASUREMENT OF GASEOUS DIFFUSION COEFFICIENTS BASED ON QUASI-STEADY-STATE |
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| Gu Heping Xiao Renzhuo.MEASUREMENT OF GASEOUS DIFFUSION COEFFICIENTS BASED ON QUASI-STEADY-STATE[J].Ceramics Science & Art,1993(3). |
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| Authors: | Gu Heping Xiao Renzhuo |
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| Affiliation: | Department of Chemical Engineering |
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| Abstract: | A samll and convenient measuring apparatus for determination of gaseous diffusion coefficients was built based on quasi-steady-state one dimensional diffusion. The experimental results conformed to literature data and agreed well with values predicted by Hirschfelder-Curtiss-Bird,Fullor equation. In this wook gaseous diffuision coefficients for CH_2Cl_2-air, CH_2Cl_2-H_2, CH_3CH_2Br-air, CH_3CH_2Br-H_2 and CHCl_3-H_2 systems were measured firstly. |
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| Keywords: | diffusion diffusion of the quasi-steady-state gaseous diffusion coefficients mass transfer |
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