GRAIN DRYING OPTIMIZATION AT LOW-TEMPERATURES

Citation
Jb. Soares et al., GRAIN DRYING OPTIMIZATION AT LOW-TEMPERATURES, Drying technology, 15(6-8), 1997, pp. 1973-1982
Citations number
18
Categorie Soggetti
Material Science
Journal title
ISSN journal
07373937
Volume
15
Issue
6-8
Year of publication
1997
Pages
1973 - 1982
Database
ISI
SICI code
0737-3937(1997)15:6-8<1973:GDOAL>2.0.ZU;2-R
Abstract
The optimisation of grain drying systems was studied through the dynam ic programming technique focusing on the minimisation of the energy co nsumption, takingin account the conservation of the product quality an d avoiding excessive humidity gradients in the bed at the end stages o f drying. An algorithm was developed, where the input data were the in itial conditions of the product and the climate data of the region. Th e operational conditions considered were: fan on or off, and different degrees of air heating (1 to 5 degrees C). The result obtained was an optimised management strategy for the operation of the dryer, specifi ed for each stage of the process, in two situations: calculated from t he mean climate data of ten years, and corrected day by day with up to date climate data.