Dynamic simulation and control of direct rotary dryers

被引:15
作者
Perez-Correa, JR
Cubillos, F
Zavala, E
Shene, C
Alvarez, PI
机构
[1] Pontificia Univ Catolica Chile, Dept Ingn Quim & Bioproc, Santiago 22, Chile
[2] Univ Santiago Chile, Dept Ingn Quim, Santiago, Chile
[3] Univ La Frontera, Dept Ingn Quim, Temuco, Chile
关键词
dynamic modelling; water content control; temperature control; adaptive control;
D O I
10.1016/S0956-7135(97)00077-7
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Adaptive and conventional control of a direct rotary dryer has been assessed through simulations. A dynamic model of the process was developed specifically for this purpose. The model is based on mass and energy balances and includes a drying kinetic derived from mass transfer principles. In the modelling process, ten discrete perfectly mixed elements were considered for the dryer with each containing four differential equations. A well tuned discrete PID and an adaptive algorithm were used to control the outlet solid humidity Bath controllers can regulate the controlled variable for different disturbances, although the adaptive controller is more effective. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:195 / 203
页数:9
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