Modeling of a double effect evaporator: Bond graph approach.

Graphical abstract Highlights • Chemical engineering process is modeled using bond graph approach. • Interactions of different thermal and hydraulic phenomena are considered. • Energetic parameters are determinate by simulation study. • Experimental results are confronted to simulation results. • Analytical redundancy relations are developed for diagnosis and isolation of default. Abstract This paper deals with the modeling of a chemical engineering system, which is the double effect evaporator (DEE). The main physical phenomenon encountered in this system is the heat transfer during distillation and concentration process. The modeling of DEE is carried out using bond graph approach. It allows description of interdisciplinary systems involving energetic, thermodynamic, hydraulic and thermal phenomena. In this study a dynamical models for the different parts of the DEE system are established. Simulation data are presented and confronted to the experimental results. To supervise the DEE system, the bond graph model is used to obtain analytical redundancy relations (ARR). They allow detection and isolation of faults. [ABSTRACT FROM AUTHOR]