Supervisory predictive control of evaporator in Organic Rankine Cycle (ORC) system for waste heat recovery
Guolian Hou, Rui Sun, Guoqiang Hu, Jianhua Zhang
Abstract
Guolian Hou, Rui Sun, Guoqiang Hu, Jianhua Zhang
Abstract
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.
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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.
Key concepts: Organic Rankine cycle, Evaporator, Waste heat, Degree Rankine, Model predictive control, Waste heat recovery unit, Process engineering, Environmental science