| Journal: | Brazilian journal of chemical engineering |
| Database: | PERIÓDICA |
| System number: | 000308771 |
| ISSN: | 0104-6632 |
| Authors: | Bosse, M.A1 Arce, P2 Troncoso, S.A Vasquez, A3 |
| Institutions: | 1Universidad Católica del Norte, Departamento de Ingeniería Química, Antofagasta. Chile 2Florida State University, Geophysical Fluid Dynamics Institute, Tallahassee, Florida. Estados Unidos de América 3Universidad Católica del Norte, Departamento de Matemáticas, Antofagasta. Chile |
| Year: | 2001 |
| Season: | Mar |
| Volumen: | 18 |
| Number: | 1 |
| Pages: | 71-80 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The problem of the effect of Joule heating generation on the hydrodynamic profile and the solute transport found in electrophoretic devices is addressed in this article. The research is focused on the following two problems: The first one is centered around the effect of Joule heating on the hydrodynamic velocity profile and it is referred to as "the carrier fluid problem." The other one is related to the effect of Joule heating on the solute transport inside electrophoretic cells and it is referred to as "the solute problem". The hydrodynamic aspects were studied first to yield the velocity profiles required for analysis of the solute transport problem. The velocity profile obtained in this study is analytical and the results are valid for non-Newtonian fluids carriers. To this end, the power-law model was used to study the effect of the rheology of the material in conjunction with the effect of Joule heating generation inside batch electrophoretic devices. This aspect of the research was then effectively used to study the effect of Joule heating generation on the motion of solutes (such as macromolecules) under the influence of non-Newtonian carriers. This aspect of the study was performed using an area-averaging approach that yielded analytical results for the effective diffusivity of the device |
| Disciplines: | Química |
| Keyword: | Ingeniería química, Fluidos no newtonianos, Reología, Electroforesis, Calentamiento resistivo |
| Keyword: | Chemistry, Chemical engineering, Non Newtonian fluids, Rheology, Electrophoresis, Joule heating |
| Full text: | Texto completo (Ver HTML) |
