MATHEMATICAL-MODELING OF THE THIN-LAYER SOLAR DRYING OF SWEET-POTATO SLICES

被引:333
作者
DIAMANTE, LM [1 ]
MUNRO, PA [1 ]
机构
[1] MASSEY UNIV,DEPT FOOD TECHNOL,PALMERSTON NORTH,NEW ZEALAND
关键词
D O I
10.1016/0038-092X(93)90122-5
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
An indirect solar dryer was used to study the drying of sweet potato slices. The solar drying rates of sweet potato slices were affected by the fluctuating chamber temperature over the drying period. Solar drying rate curves exhibited a constant rate period and one linear falling rate period. A mathematical model for solar drying of sweet potato slices was derived based on the simplified form of the Fick's diffusion equation. The mathematical model could satisfactorily describe the solar drying of sweet potato slices to a moisture content below 20% dry basis. The mean effective drying chamber temperature and sample thickness were the main factors that affected the solar drying process for sweet potato slices.
引用
收藏
页码:271 / 276
页数:6
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