| Journal: | Maderas : ciencia y tecnología |
| Database: | |
| System number: | 000535218 |
| ISSN: | 0718-221X |
| Authors: | Bekkioui, Naoual1 Zoulalian, André2 Hakam, Abdelillah3 EZ Zahraouy, Hamid1 |
| Institutions: | 1Mohammed V University of Rabat Faculty of Sciences Laboratoire de Matière Condensée et Sciences Interdisciplinaires, Rabat. Morocco 2Université de Nancy 1 LERMAB, Nancy. France 3Mohammed V University Faculty of Sciences Wood Science Laboratory, Rabat. Morocco |
| Year: | 2017 |
| Volumen: | 19 |
| Number: | 4 |
| Pages: | 463-470 |
| Country: | Chile |
| Language: | Inglés |
| English abstract | Parameters characterizing wood and air were studied in order to analyze the performance of a wood solar dryer functioning under Moroccan climate. A mathematical model based on the climate data of Rabat city was used to investigate theoretically the wood drying process. Two wood species-thuya (Tetraclinis articulate) and pine (Pinus pinaster)-were examined in the present study. The results obtained by computer simulations are in good agreement with the experimental values. Furthermore, our findings indicate that the use of a global mass transfer coefficient for low temperature convective and homogenous drying conditions allows the influence of the principal operating parameters (wood thickness, wood density, air temperature, air velocity and ventilation mode) on the drying time to be estimated with great accuracy. Analyses pertaining to the two studied wood species revealed that(1) pine dries more quickly than thuya, (2) the drying process is faster in the summer relative to other seasons, (3) increasing the air velocity by 100% results in a 20% reduction in the drying time, and (4)continued ventilation reduces the drying time by 43%. |
| Keyword: | Drying curves, Drying operating parameters, Drying time, Mass transfer coefficient, Solar drying. |
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