SciELO - Scientific Electronic Library Online

 
vol.8 número1Efecto del pH y la concentración del fosfato dibásico de sodio en las propiedades de hinchamiento de hidrogeles de quitosanaDesempeño dinámico de esquemas alternativos a la columna petlyuk (columna de pared divisoria) para la separación de mezclas ternarias índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Revista mexicana de ingeniería química

versión impresa ISSN 1665-2738

Resumen

VELAZQUEZ-CAMILO, O.; ALVAREZ-RAMIREZ, J. J.  y  BOLANOS-REYNOSO, E.. Comparative analysis of the crystallizer dynamics type continuous stirred tank: Isothermic and cooling case. Rev. Mex. Ing. Quím [online]. 2009, vol.8, n.1, pp.127-133. ISSN 1665-2738.

In this work an operation alternative and controllability was studied by simulation of a stirred tank continuous isothermic crystallizer through of its dynamic characterization. The process model is based on the moments technique. The methodological process consisted on the implementation of a SISO (single input-single output) feedback servocontrol algorithm and a PID (proportional-integral-derivative) controller. The tuning was carried out with the strategies of internal model control (IMC). The process variable to control was the average diameter in % volume D(4,3) = μ4 / μ3, because is a useful variable in both commercial and industrial environment; the manipulate variable in isothermic operation and for cooling was the solute concentration in the feeder and cooling temperature, respectively. Since static analysis were obtained zones where the presence of limits cycle exists and values of more favorable residence times to operate and control the crystallization process for isothermic and cooling operation. Feedback PID controller in the two operations was satisfactory eliminating the deviations between the adjustment point and the response of the controllable variable.

Palabras llave : isothermic crystallization; cooling crystallization; moment's model; dynamic characterization; control strategy.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons