A generalized phenomenological model to simulate complex chemical processes

The complex chemical processes are composed of many different nonlinear sub-systems, possibly including continual dynamical systems, discrete events dynamic systems and hybrid dynamical systems. The analytical modeling and simulation of complex chemical processes is time-consuming and the model-based fault detection methodology does not work well on these systems. In order to provide a practical modeling method in the simulation and the fault detection of complex systems, a generalized system and its phenomenological model were proposed in the paper. The fault detection method based on the phenomenological model is explored. Using TE process as example, the modeling capability of the method is analyzed. The results indicated that the simple phenomenological model could be used in the simulation and fault detection of TE process in some specific conditions.