Physical properties and fluidization behaviour of fresh green bean particulates during fluidized bed drying
Article
Article Title | Physical properties and fluidization behaviour of fresh green bean particulates during fluidized bed drying |
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ERA Journal ID | 3882 |
Article Category | Article |
Authors | Senadeera, W. (Author), Bhandari, B. (Author), Young, G. (Author) and Wijesinghe, B. (Author) |
Journal Title | Food and Bioproducts Processing |
Journal Citation | 78 (C1), pp. 43-47 |
Number of Pages | 5 |
Year | 2000 |
Place of Publication | United Kingdom |
ISSN | 0960-3085 |
1744-3571 | |
Digital Object Identifier (DOI) | https://doi.org/10.1205/096030800532707 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S096030850070188X |
Abstract | Changes in the physical properties (such as particle density, bulk density of the bed, shrinkage and bed porosity) of fresh green bean particulates were investigated during drying. Three length:diameter ratios (1:1, 2:1 and 3:1) were considered, using drying conditions of 50 ± 2 °Cand 13 ± 2% relative humidity in a heat pump dehumidifier system. The fluidization behaviour was also evaluated at 10 levels of moisture content. The fluidization experiments demonstrated that the minimum fluidization velocity decreases as the drying proceeds due to the reduced moisture content and changes in the physical properties of the bean particulates. Empirical relationships of the following nature were developed for the change in shrinkage [VR = 1 − Be−kMR], particle density [ρp = A + BMR + C exp(− D MR)]; bulk density [ρp = a1 + b1MR + c1MR2] and bed porosity [ɛ = a2 + b2MR + c2MR2] with the moisture content during fluidized bed drying. |
Keywords | green beans; drying; ¯uidization; shrinkage; physical properties |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 400405. Food engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | University of Queensland |
Department of Primary Industries, Queensland |
https://research.usq.edu.au/item/q57xz/physical-properties-and-fluidization-behaviour-of-fresh-green-bean-particulates-during-fluidized-bed-drying
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