Example Temperature control of heating system 0 obtains temperature of hot water 0 and sends 8 ec regulate steam valve to keep constant outlet temperature load: hot water flow rate Q and outlet temperature 0 P control, opening of regulating valve u controller output 日 Q1≤Q0 steam F--- Q condenser water 100C T    condenser water steam Q V Example Temperature control of heating system T obtains temperature of hot water  and sends c c regulate steam valve to keep constant outlet temperature. load: hot water flow rate Q and outlet temperature  P control, opening of regulating valve  controller output