The role of dynamic process models for the detection of safe operating regions of process systems

Authors

  • Tamás Varga University of Pannonia, Faculty of Engineering, Deparment of Process Engineering, H-8200Veszprém, Egyetem utca 10.
  • György Baradits University of Pannonia, Faculty of Engineering, Deparment of Process Engineering, H-8200Veszprém, Egyetem utca 10.
  • János Abonyi University of Pannonia, Faculty of Engineering, Deparment of Process Engineering, H-8200Veszprém, Egyetem utca 10.

Keywords:

operating region, process model, stability analysis, safety

Abstract

Determining safe regions of operations is important at the design, control and optimization of process systems. E.g. process alarms and safety systems should be designed based on such knowledge. In classical control systems these regions are represented as independent values (constraints) on process variables. This representation is does not consider the interaction of the process variables, and moreover it gives a static view of the process. The paper reviews the importance of the representation of the safe operating regions from an industrial application point of view and the recent tools developed for model-based alarm management. The importance of the application of dynamical analysis of process models is highlighted. A detailed case study is given where this dynamical approach has been applied to determine boundaries of operating regions of a catalytic tube reactor.

Author Biography

  • Tamás Varga, University of Pannonia, Faculty of Engineering, Deparment of Process Engineering, H-8200Veszprém, Egyetem utca 10.

    corresponding author
    vargat@fmt.uni-pannon.hu

References

Adler, J., Enig, J.W. (1964). The Critical Conditions in Thermal Explosion Theory with Reactant. Consumption. Comb. Flame, 8. 2. 97–1103. https://doi.org/10.1016/0010-2180(64)90035-5

Barkelew, C. (1959). Stability of Chemical Reactors, Chem. Eng. Prog. Symp. Ser., 37. 25. 37–46. https://doi.org/10.1021/cen-v037n025.p046

Lacey, A. A. (1983). Critical Behaviour for Homogeneous Reacting Systems with Large Activation Energy. Int. J. Eng. Sci., 21. 5. 501–515. https://doi.org/10.1016/0020-7225(83)90098-8

Sastry, S. (1999). Nonlinear systems: Analysis stability and control, Springer. https://doi.org/10.1007/978-1-4757-3108-8

Varga, T., Abonyi, J., Szeifert, F. (2006). Heterokatalitikus reaktorok vizsgálata, Acta Agraria Kaposvariensis, 10. 3. 121–133.

Varga, T., Szeifert, F., Abonyi, J. (2007). Applying decision tress to investigate the operating regimes of a production process, Acta Agraria Kaposvariensis, 11. 2. 175–186.

Downloads

Published

2010-12-15

How to Cite

Varga, T., Baradits, G., & Abonyi, J. (2010). The role of dynamic process models for the detection of safe operating regions of process systems. Acta Agraria Kaposváriensis, 14(3), 65-76. https://journal.uni-mate.hu/index.php/aak/article/view/1963

Most read articles by the same author(s)

1 2 > >>