A time-delay approach for modeling and control of mist in a poiseuille flow

Moisture control in advective flow systems with time delay is studied in this work and assessed in a process-control system (test bench). A control-oriented model is proposed by considering advection as a transport time-delay and the sensitivity to operating conditions as structured uncertainties. The model parameters and variations are identified from experimental results. A guaranteed cost control strategy is then used to handle both time-varying delays and uncertainties in an optimal design, and improved with a linear change of variables and an integral action. The results are compared with a traditional PI strategy and evaluated on both simulation and experimental results.