Notes on Stefan-Maxwell equation versus Graham's diffusion law
文献类型：期刊论文
| 作者 | Mao, ZS |
| 刊名 | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| 出版日期 | 2000-12-01 |
| 卷号 | 8期号:4页码:356-360 |
| 关键词 | ordinary diffusion Stefan-Maxwell equation Graham's law of diffusion theorem of minimum entropy production nonequilibrium thermodynamics |
| ISSN号 | 1004-9541 |
| 其他题名 | Chin. J. Chem. Eng. |
| 中文摘要 | Certain prerequisite information on the component fluxes is necessary for solution of the Stefan-Maxwell equation in multicomponent diffusion systems and the Graham's law of diffusion and effusion is often resorted for this purpose. This article addresses solution of the Stefan-Maxwell equation in binary gas systems and explores the necessary conditions for definite solution of concentration profiles and pertinent component fluxes. It is found that there are multiple solutions for component fluxes in contradiction to what specified by the Graham's law of diffusion. The theorem of minimum entropy production in the non-equilibrium thermodynamics is believed instructive in determining the stable steady state solution out of infinite multiple solutions possible under the specified conditions. It is suggested that only when the boundary condition of component concentration is symmetrical in an isothermal binary system, the counter-diffusion becomes equimolar. The Graham's law of diffusion seems not generally valid for the case of isothermal ordinary diffusion. |
| 英文摘要 | Certain prerequisite information on the component fluxes is necessary for solution of the Stefan-Maxwell equation in multicomponent diffusion systems and the Graham's law of diffusion and effusion is often resorted for this purpose. This article addresses solution of the Stefan-Maxwell equation in binary gas systems and explores the necessary conditions for definite solution of concentration profiles and pertinent component fluxes. It is found that there are multiple solutions for component fluxes in contradiction to what specified by the Graham's law of diffusion. The theorem of minimum entropy production in the non-equilibrium thermodynamics is believed instructive in determining the stable steady state solution out of infinite multiple solutions possible under the specified conditions. It is suggested that only when the boundary condition of component concentration is symmetrical in an isothermal binary system, the counter-diffusion becomes equimolar. The Graham's law of diffusion seems not generally valid for the case of isothermal ordinary diffusion. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000165942500013 |
| 公开日期 | 2013-11-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6005]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Acad Sinica, Inst Chem Met, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, ZS. Notes on Stefan-Maxwell equation versus Graham's diffusion law[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2000,8(4):356-360. |
| APA | Mao, ZS.(2000).Notes on Stefan-Maxwell equation versus Graham's diffusion law.CHINESE JOURNAL OF CHEMICAL ENGINEERING,8(4),356-360. |
| MLA | Mao, ZS."Notes on Stefan-Maxwell equation versus Graham's diffusion law".CHINESE JOURNAL OF CHEMICAL ENGINEERING 8.4(2000):356-360. |
入库方式： OAI收割
来源：过程工程研究所
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