Batch process design: an overview from control

Batch process design: an overview from control In this work, the topic of batch process design is addressed, through an analysis of the phenomenological-based model and using set-theoretic methods to deduce process constraints and parametric effects in state controllability. A review of literature is presented about characterization of batch process from point of view of design problem. Furthermore simultaneous process and control design is also reviewed, considering the main contributions for batch processes case. The drawbacks of these works are found when batch process characteristics are not considered, specially the irreversibility. Even design parameters, initial state and batch time are seldom related with this dynamic characteristic. Within the proposed methodology a state controllability index is presented (N) which takes advantage of control sets characterization, particularly the controllable trajectories set (Tt ( 0, tf )). This set can give a measurement of controllability and irreversibility of the process. In that sense, the design parameters and initial state are selected according to controllability index maximization, and designing the process with these dynamic criteria. Finally, the methodology is applied to a benchmark of a batch reactor, determining the best value for global heat transfer coefficient and initial state. This procedure is also applied to a more realistic case, which is a convective coffee dryer, improving controllability changing size parameters of the equipment.

• Autores: Zuluaga Bedoya, Christian Camilo
• Fecha de publicación: 2015
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/55788
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/55788; http://bdigital.unal.edu.co/51256/
• Palabra clave: 66 Ingeniería química y Tecnologías relacionadas/ Chemical engineering; Irreversibility; Batch process; State controllability; Set-theoretic methods; Design parameters; Initial state; Phenomenological-based model; Irreversibilidad; Proceso por lotes; Controlabilidad de estado; Métodos de la teoría de conjuntos; Parámetros de diseño; Condiciones iniciales; Modelo de base fenomenológica
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional