SHRINKAGE OF DATES (Phoenix DactilyferaL.) DURING DRYING
作者:
M.E.T. Prado,
L.F.T. Alonso,
K.J. Park,
期刊:
Drying Technology
(Taylor Available online 2000)
卷期:
Volume 18,
issue 1-2
页码: 295-310
ISSN:0737-3937
年代: 2000
DOI:10.1080/07373930008917705
出版商: Taylor & Francis Group
关键词: dates;drying;shrinkage
数据来源: Taylor
摘要:
In this paper the shrinkage of Dates (Phoenix dactilyferaL.) during drying was observed. Samples were dried in a convective tray dryer under three different conditions (60°C-11.1%RH, 70°C-7.2%RH and 80°C-4.7%RH) and three different air velocities (0.5m/s, l.0m/s and 1.5m/s). Sample shrinkage was directly (using a caliper) and indirectly measured (snapshot area measured). The indirect manner shows a higher precision. The geometry applied in the shrinkage solution proved that the ellipsoidal geometry of the dates, may be successfully approached to a cylinder. Three mathematical models developed by Suzuki et al. (1976) were applied to correlate the dates surface to its moisture content. The core model presented the best fit to the experimental data.
点击下载:
PDF (162KB)
返 回