Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 41, Issue 9, Pages 2262-2269Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie000950t
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A wet granular solid material (alperujo, a waste from the olive mills) was dried using a fluidized-bed dryer (FBD) system. The drying curves, data of moisture vs time, were fitted to an exponential equation and then interpolated and used as learning data for an artificial neural network (ANN). The target is to predict the moisture of the solid from operating conditions data. The ANN has three layers, with four inputs, four hidden neurons, and one output. Several criteria are given to improve the ANN training, e.g., selecting the data sets (number of data and order in which they are shown to the network), tuning the learning coefficient (set at 1.5), and optimizing the sigmoid function (two adjustable parameters, a and, set at 3 and 9). The optimized ANN can predict the evolution of the moisture of the solid with a model error of +/-1.57%.
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