Influence of the grashof number on the stability of the thermogravitational effect in liquid mixtures with negative thermal diffusion factors

M.M. Bou-Ali; O. Ecenarro; J.A. Madariaga

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Influence of the grashof number on the stability of the thermogravitational effect in liquid mixtures with negative thermal diffusion factors

机译：格拉索夫数对负热扩散因子液体混合物中热引力效应稳定性的影响

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Negative thermal diffusion factors of mixtures of ethanol-water have been determined from steady separation measurements in athermogravitational column. The obtained results are in good agreement with literature data. It is found that convective currents favour the stability of the adverse vertical density gra- dient which appears in the column.

机译：乙醇-水混合物的负热扩散因子已通过在热重塔中的稳定分离测量确定。所得结果与文献数据吻合良好。发现对流有利于出现在色谱柱中的不利的垂直密度梯度的稳定性。

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《Entropie》 |1999年第218期|p.5-7|共3页
作者
M.M. Bou-Ali; O. Ecenarro; J.A. Madariaga;
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原文格式 PDF
正文语种 eng
中图分类热力工程、热机;
关键词
energetics; thermogravitational diffusion; ethanol-water mixtures;

机译：能量学热引力扩散乙醇-水混合物;

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1. Thermal diffusion and molecular diffusion values for some alkane mixtures: A comparison between thermogravitational column and thermal diffusion forced Rayleigh scattering [J] . Blanco P, Polyakov P, Bou-Ali MM, The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2008,第28期

机译：某些烷烃混合物的热扩散和分子扩散值：热引力柱与热扩散强迫瑞利散射的比较
2. Fickian diffusion coefficient of binary liquid mixtures in a thermogravitational column [J] . Valencia JJ, Bou-Ali MM, Platten JK, Journal of Non-Equilibrium Thermodynamics . 2007,第3期

机译：热引力柱中二元液体混合物的Fickian扩散系数
3. On thermal diffusion and convection in multicomponent mixtures with application to the thermogravitational column [J] . Ryzhkova II, Shevtsova VM Physics of fluids . 2007,第2期

机译：关于多组分混合物中的热扩散和对流及其在热重力塔中的应用
4. Influence of diffusion and thermal diffusion on the energy transfer in combustible mixtures [C] . T.Caesar, H.Bollmann, W.Aretz, Conference of the International Federation of Classification Societies;IFCS-96 . 1998

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5. Theoretical analysis of separation of multicomponent liquid mixtures in thermogravitational columns and thermal diffusion cells [D] . Haugen, Kjetil Braathen 2007

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Influence of the grashof number on the stability of the thermogravitational effect in liquid mixtures with negative thermal diffusion factors

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