Temperature control for multiple parallel reactors
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Hello everyone. A main refrigerant pipe splits into several branch pipes, which are connected to the jacket of the reactor to cool it down. How can precise temperature control be achieved? In the case of control based on boiler temperature and refrigerant flow rate, will a change in one branch affect the other branches? Also, since heat transfer by the refrigerant takes time, could the control not be precise enough?
Heat exchange always involves a delay; an increase in the amount of refrigerant will take some time before any changes become apparent, and adjustments need to be made based on experience. Good control is possible if the accuracy is sufficient. When the pressure in the main pipeline remains stable, changes in the flow rate in one pipeline have little impact on the other pipelines. If the pressure in the main flow pipeline fluctuates along the way, it will be very difficult to control
Heat exchange will be delayed; it’s necessary to use some control methods, such as feedforward, and incorporate some algorithms as well