Journal
COMPUTERS & CHEMICAL ENGINEERING
Volume 145, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2020.107159
Keywords
Tubular reactor; Recycle systems; Model predictive control; Discrete observer; Coupled PDEs system
Funding
- CAPES (Brazil) [88881.128514/2016-01]
Ask authors/readers for more resources
This paper discusses the model predictive output controller design for a non-isothermal axial dispersion tubular reactor considering energy and mass transport in a recycle stream. The system's discrete model is obtained using a Crank-Nicolson type of discretization method, and the proposed predictive controller ensures system stabilization and constraint satisfaction.
This paper addresses the model predictive output controller design for a non-isothermal axial dispersion tubular reactor accounting for energy and mass transport in a recycle stream. The underlying transport-reaction process is characterized by different mass and energy Peclet numbers. Open-loop analysis reveals unstable operating conditions based on the reactor's parameters. The discrete model of the system is obtained by considering a Crank-Nicolson type of discretization method without any model reduction and/or spatial approximation for the system of coupled parabolic PDEs. The proposed predictive controller accounts for asymptotic close-loop system stabilization and/or naturally present input and state constraints with the rejection of possible disturbances arising from reactor operations. To account for the output controller design, a discrete observer is developed to reconstruct the infinite dimensional states in the predictive control realization. Finally, the controller's performance is assessed via simulation studies, implying proper state stabilization and constraints satisfaction with input disturbance rejection. (C) 2020 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available