Initialization file for all states and parameters related to the aeration control system aerationcontrol.py in reactor 3 to 5.
All parameters and specifications are based on BSM1 model. This file will be executed when running bsm2_cl.py.
Maximum possible external carbon flow rate to reactor 1 [m³ ⋅ d⁻¹].
Maximum possible external carbon flow rate to reactor 2 [m³ ⋅ d⁻¹].
Maximum possible external carbon flow rate to reactor 3 [m³ ⋅ d⁻¹].
Maximum possible external carbon flow rate to reactor 4 [m³ ⋅ d⁻¹].
Maximum possible external carbon flow rate to reactor 5 [m³ ⋅ d⁻¹].
Maximum pump capacity for internal recirculation rate Q_int [m³ ⋅ d⁻¹].
Maximum pump capacity for waste sludge flow rate Q_w [m³ ⋅ d⁻¹].
Maximum pump capacity for return sludge flow rate Q_r [m³ ⋅ d⁻¹].
Maximum pump capacity for outlet flow rate of the storage tank Q_st,out [m³ ⋅ d⁻¹].
Time delay for artificial Q_w actuator (acts as first-order filter) [d].
Amplification constant for control signal to reactor 3 [-].
Response time t_r for KLa actuator 3 [min].
T_KLA3 = T90_KLA3 / 60 * 24 / 3.89
Integral part time constant τ for KLa actuator 3 [d].
Response time t_r for oxygen sensor 4 [min].
Lower measuring limit of the oxygen sensor 4 [g(O₂) ⋅ m⁻³].
"Upper measuring limit of the oxygen sensor 4 [g(O₂) ⋅ m⁻³].
T_SO4 = T90_SO4 / 60 * 24 / 3.89
Integral part time constant τ of transfer function for sensor 4 [d].
Standard deviation for adding measurement noise for sensor 4 [-].
KLA4_INIT = 201.3015557168598
Initial value for PI controller 4 [d⁻¹].
Lower limit of the adjustable KLa value for PI controller 4 [d⁻¹].
Upper limit of the adjustable KLa value for PI controller 4 [d⁻¹].
Amplification constant for PI controller 4 [-].
Integral part time constant τ for PI controller 4 [d].
Integral part time constant τ of 'antiwindup' for PI controller 4 [d].
Differential part time constant τ for PI controller 4 [d].
SO4INTSTATE = -321.7493546935257
Initial integration value for saturated oxygen concentration of PI controller 4 [g(O₂) ⋅ m⁻³].
SO4AWSTATE = 379.05091041032915
Initial integration value for 'antiwindup' saturated oxygen concentration of PI controller 4
[g(O₂) ⋅ m⁻³].
Set point for oxygen concentration controller 4 [g(O₂) ⋅ m⁻³].
Reasonable offset value for PI controller 4 around S_O^ref [d⁻¹].
KLA4_LIM = 201.3015557168598
KLa value after adjusting to upper and lower limit for PI controller 4 [d⁻¹].
KLA4_CALC = 201.3015557168598
KLa value calculated from PI control [d⁻¹].
Boolean value to use 'antiwindup' for PI controller 4.
Response time t_r for KLa actuator 4 [min].
T_KLA4 = T90_KLA4 / 60 * 24 / 3.89
Integral part time constant τ for KLa actuator 4 [d].
Amplification constant for control signal to reactor 5 [-].
Response time t_r for KLa actuator 5 [min].
T_KLA5 = T90_KLA5 / 60 * 24 / 3.89
Integral part time constant τ for KLa actuator 5 [d].