| Revista: | Brazilian journal of chemical engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000308988 |
| ISSN: | 0104-6632 |
| Autores: | Assis, A.J1 Lira, T.S Murata, V.V Barrozo, M.A.S |
| Instituciones: | 1Universidade Federal de Uberlandia, Faculdade de Engenharia Quimica, Uberlandia, Minas Gerais. Brasil |
| Año: | 2005 |
| Periodo: | Jun |
| Volumen: | 22 |
| Número: | 2 |
| Paginación: | 311-318 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | The aim of this work was to analyze the heat and mass transfer between the air and soybean seeds in a concurrent moving bed dryer with an air profile that is not flat. The modelling of heat and mass transfer in moving bed dryers is generally based on the application of mass and energy balance equations for both solid and fluid phases (two-phase model). In the establishment of these equations some classical hypotheses such as that the fluid velocity profile is flat, are assumed. The main goal of this work was to verify the validity of this assumption by means of an experimental and simulation study in a concurrent moving bed, using soybean seeds as particles. In this work, the radial air profile was taken into account by means of a suitable empirical correlation and a mechanistic model validated by experimental results. The numerical solution of the one-dimension boundary value problem was obtained by means of a computational code based on axial integration through the DASSL code. By comparison of the experimental data and the simulated responses for air temperature and seed moisture content, it was possible to verify the significant effect of air velocity distribution |
| Disciplinas: | Agrociencias, Química |
| Palabras clave: | Fitotecnia, Soya, Semillas, Secado concurrente, Perfil radial de aire |
| Keyword: | Agricultural sciences, Chemistry, Crop husbandry, Soybean, Seeds, Concurrent drying, Radial air profile |
| Texto completo: | Texto completo (Ver HTML) |
