| Journal: | Maderas : ciencia y tecnología |
| Database: | |
| System number: | 000544819 |
| ISSN: | 0718-221X |
| Authors: | Manh, Ha Tien1 Redman, Adam L.2 Pham Van, Chuong3 Ngoc, Bui Duy1 |
| Institutions: | 1Research Institute of Forest Industries, Hanoi. Vietnam 2Queensland Department of Agriculture and Fisheries, Salisbury, Queensland. Australia 3Vietnam National University of Forestry, Chuong My, Hanoi. Vietnam |
| Year: | 2022 |
| Volumen: | 24 |
| Country: | Chile |
| Language: | Inglés |
| English abstract | This study investigated the mass transfer properties (permeability and mass diffusivity) in the longitudinal, radial and tangential directions of plantation-grown Acacia mangium in VinhPhuc province,northeast, Vietnam. These properties will be used to complement a conventional drying model in the future. Measurements of gas and liquid permeability were performed using a Porometer (POROLUXTM1000). Mass diffusivity was determined in a constant humidity and temperature chamber using PVC-CHA vaporimeters. Results showed the gas permeability was significant higher than liquid with the descending order of longitudinal, radial, and tangential directions. The permeability anisotropy ratios from the longitudinal to transverse directions of Acacia mangium were much lower than other published species. However, the obvious anisotropy ratios from radial to tangential for both permeability and diffusivity, is one of concerns as they can exacerbate defects during drying. Besides, the high permeability and diffusivity of Acaciamangium compared to some other species reported compounds its relatively fast drying rate. |
| Keyword: | Acacia mangium, Anisotropy, Diffusivity, Mass transfer, Permeability. |
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