Modelling, simulation and control of desalination plant with a liquid jet ejector

Abstract

In this paper, modelling, simulation and control of water desalination plant is presented. The desalination plant is based on vapour compression method acquired utilizing a liquid jet ejector. Nonlinear steady-state model is developed in order to verify simplified dynamic model for control purposes. Furthermore, to design PI controller capable of guiding the system through desired states under the influence of disturbances, the linearized model of the plant has been developed and verified applying the nonlinear dynamical model. It is shown that presented approach can deliver satisfying model and tracking results.

Keywords

• water desalination plant
• geothermal energy
• liquid jet vacuum ejector
• process control
• pi regulator