modelSystem
Extends from Modelica.Fluid.System.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| General › Environment | |||
| Modelica.SIunits.PartialPressure | pCO2 | 320 | Atmospheric CO2 partial pressure |
| Biofilm › Growth and conversion (at 10 and 20 degC) | |||
| U.GrowthRate | mu_H | {3.00, 6.00} | Heterotrophs - Growth constant |
| Real | K_S | {10.0, 10.0} | Heterotrophs - Organic substrate |
| Real | K_OH | {0.20, 0.20} | Heterotrophs - Dissolved oxygen |
| Real | K_NO | {0.50, 0.50} | Heterotrophs - Nitrate |
| Real | b_H | {0.20, 0.40} | Heterotrophs - Mortality rate |
| Real | mu_A | {0.29, 0.76} | Autotrophs - Growth constant |
| Real | mu_AOB | {0.29, 0.76} | AOB - Growth constant |
| Real | mu_NOB | {0.58, 1.04} | NOB - Growth constant |
| Real | K_NH | {1.00, 1.00} | Autotrophs - Ammonia |
| Real | K_OA | {0.50, 0.50} | Autotrophs - Dissolved oxygen |
| Real | b_A | {0.05, 0.15} | Autotrophs - Mortality rate |
| Real | b_AOB | {0.05, 0.15} | AOB - Mortality rate |
| Real | b_NOB | {0.05, 0.15} | NOB - Mortality rate |
| Real | nu_g | {1.00, 1.00} | Correction factor for anoxic growth |
| Real | nu_NO2 | {0.80, 0.80} | Anoxic growth nitrite correction |
| Real | nu_NO3 | {0.80, 0.80} | Anoxic growth nitrate correction |
| Real | k_a | {0.05, 0.05} | Ammonification rate |
| Real | k_h | {2.00, 3.00} | Hydrolysis rate |
| Real | K_X | {0.30, 0.10} | Heterotrophs - Hydrolysis |
| Real | nu_h | {1.30, 1.30} | Correction factor for hydrolysis |
| Real | Y_H | {0.67, 0.67} | Heterotrophs - Yield factor |
| Real | Y_A | {0.24, 0.24} | Autotrophs - Yield factor |
| Real | Y_AOB | {0.21, 0.21} | AOB - Yield factor |
| Real | Y_NOB | {0.03, 0.03} | NOB - Yield factor |
| Real | f_p | {0.08, 0.08} | Biomass particulate content |
| Real | i_XB | {0.08, 0.08} | Biomass nitrogen (S) content |
| Real | i_XP | {0.06, 0.06} | Biomass nitrogen (X) content |
| Real | K_Alk | {0.10, 0.10} | Autotrophs - Alkalinity |
| Real | K_NHH | {0.01, 0.01} | Heterotrophs - Ammonia |
| Real | K_NHI | {5.00, 5.00} | Ammonia inhibition of NOB growth |
| Biofilm › Physical | |||
| Real | K_x | 2.0/(24*3600) | Solute transport coefficient |
| Real | K_a | 10/(24*3600) | Attachment coefficent |
| Real | K_dA | 30e3/(24*3600) | Detachment coefficient in nitrifying biofilm |
| Real | K_dH | 100e3/(24*3600) | Detachment coefficient in heterotrophic biofilm |
| Real | rho_x | 50 | Biofilm thinness |
| Real | eps_A | 0.5 | Porosity in nitrifying biofilm |
| Real | eps_H | 0.8 | Porosity in heterotrophic biofilm |
| Real | As | 500 | Carrier specific surface |
| Initialization › Concentrations | |||
| Real[10] | C_S_start | {eps, eps, eps, eps, eps, eps, 2e-3, eps, eps, eps} | Start value of bulk S in CSBRs |
| Real[10] | C_S_film_start | {eps, eps, eps, eps, eps, eps, 2e-3, eps, eps, eps} | Start value of film S in CSBRs |
| Real[7] | C_X_start | {eps, 1e-3, 1e-3, eps, eps, eps, eps} | Start value of bulk X in CSBRs |
| Real[7] | C_X_film_start | {3.0, 0.5, 5.0, 0.5, 0.5, 1.0, 0.1} | Start value of film X in CSBRs |
| Real[7] | C_X_film_start_nitri | (1 - eps_A)/(1 - eps_H)*C_X_film_start | Start value of film X in nitrifying CSBRs |