| Summary: | The goal of the present work is to elaborate the scheme of the disturbance compensation system, which is influencing the level of refrigerant consumption in evaporators and gas coolers of the heat pump embedded in the milk pasteurization and cooling installation, as well as, to design the automatic control system for the heat-exchanger with two output parameters – the water temperature at the outlet of the primary and secondary heat-carrying agent circuits by adjusting the consumption level in the secondary heat-carrying agent circuit and by adjusting the heat exchange surface area. System structures are based on principles of the coordinated control and the multidimensional systems control. The proposed structural scheme of the coordinated system for control of the consumption in evaporators, both water heating and cooling segments, is more accurate in transient processes than alternative systems of non-integrated control of the working agent consumption in each evaporator. The heat exchanger control system with two controls controlling segments (controlling the heat exchange surface area and controlling the consumption level in the secondary coolant circuit) has proven to have good transient characteristics.
|
|---|
