Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
700587 | Control Engineering Practice | 2009 | 11 Pages |
Abstract
In this paper, a distributed parameter approach is used to model and control a batch fluidised bed dryer. Electric capacitance tomography (ECT) is used as a sensor to measure and control the distributed permittivity in the bed. First, a lumped model is developed to describe the heat and mass transfer between solid, gas and bubble phases in the bed. Then, based on this model, a distributed parameter model is developed to predict the permittivity distribution. Experimental validation confirms the accuracy of the model. Finally, a distributed parameter controller is designed and implemented to regulate the permittivity distribution.
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Authors
Javier A. Villegas, Stephen R. Duncan, Haigang G. Wang, Wuquiang Q. Yang, Rambali S. Raghavan,