A cylindrical well-mixed tank is used to blend two dilute solutions of A. The liquid leaving the blender has a volumetric flow rate, q3, which depends on the head of the liquid above the outlet
level, such that q3, which depends on the head of the liquid above the outlet level, such that q3 = k h + h0
. The system is subject to perturbations in the flow rate of stream 1, whereas the flow rate of stream 2 and the two feed concentrations, may be assumed to remain constant.
a. The tank has a cross-sectional area of A = 4 m2 and the outlet is placed 1 m below the base of the vessel.