DOI : https://doi.org/10.18517/ijaseit.1.1.12

Design and Application of a Novel Dehumidifying System for a Fluidized Bed Dryer for the Drying of Canola Seeds

Narjes Malekjani (1), Seid Mahdi Jafari (2), Habibollah Mirzaee (3), Mohammad Hashem Rahmati (4)
(1) Department of Food science and Technology, Gorgan university of Agricultural science & natural resources Basij square, Gorgan
(2) Department of Food science and Technology, Gorgan university of Agricultural science & natural resources Basij square, Gorgan
(3) Department of Food science and Technology, Gorgan university of Agricultural science & natural resources Basij square, Gorgan
(4) Department of Agricultural Machinery Engineering, Gorgan university of Agricultural science & natural resources Basij square, Gorgan
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How to cite (IJASEIT) :
Malekjani, Narjes, et al. “Design and Application of a Novel Dehumidifying System for a Fluidized Bed Dryer for the Drying of Canola Seeds”. International Journal on Advanced Science, Engineering and Information Technology, vol. 1, no. 1, Feb. 2011, pp. 46-49, doi:10.18517/ijaseit.1.1.12.
Citation Format :
A novel fluidized bed dryer equipped with a dehumidifying system was designed and constructed. The dehumidifying system was based on refrigeration cycle and composed of an evaporator, a compressor, a condenser an expansion valve and a damper. The drying experiments were carried out in three temperature (35, 45 and 55°C) and three relative humidity (30, 50 and 70%) levels. The results showed that the relative humidity of drying air has a significant effect on drying rate. The drying rates decreased as relative humidity increased at a constant temperature, and increased as temperature increased at a constant relative humidity so dehumidifying can accelerate drying and decrease drying times.

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