Lo scenario
A wastewater treatment plant uses pH neutralization to adjust effluent pH before discharge. Acidic influent is mixed with a base reagent in a continuously stirred tank, with pH monitored by a sensor and controlled by a PID valve.
Cosa contiene questo disegno
Leggi le decisioni che ne stanno alla base.
01
Modeling feedback with sum junction
02
Including disturbance as additional input to a sum
03
Using sensor block with route above for clear feedback representation
When designing or documenting a single-input single-output (SISO) process control loop with measurable disturbance, particularly in chemical processing or water treatment.