Supervisory predictive control of evaporator in Organic Rankine Cycle (ORC) system for waste heat recovery

Organic Rankine Cycle (ORC) system has shown its superiority among different ways of recycling waste heat. Evaporator, as the key component of ORC system, has a great impact on efficiency and circulation. The dynamics of evaporator include many uncertainties because of random changes of heat sources and other factors. Traditional control strategy could not offer satisfactory results. In this paper, Supervisory Predictive Control is proposed to have satisfactory control of the evaporator. Comparisons with traditional PID control are made. Simulation result shows excellent tracking results.