[918] | 1 | #*---------------------------------------------- |
---|
| 2 | * FlowSheet generated automaticaly by EMSO-GUI |
---|
| 3 | *----------------------------------------------*# |
---|
| 4 | |
---|
| 5 | using "pressure_changers/valve"; |
---|
| 6 | using "controllers/PIDs"; |
---|
| 7 | using "stage_separators/flash"; |
---|
| 8 | |
---|
| 9 | FlowSheet sample_flash |
---|
| 10 | PARAMETERS |
---|
| 11 | PP as Plugin(Brief="Physical Properties", |
---|
| 12 | Type="PP", |
---|
| 13 | Components = ["n-butane","benzene","n-octane"], |
---|
| 14 | LiquidModel = "SRK", |
---|
| 15 | VapourModel = "SRK" |
---|
| 16 | ); |
---|
| 17 | NComp as Integer; |
---|
| 18 | SET |
---|
| 19 | NComp = PP.NumberOfComponents; |
---|
| 20 | |
---|
| 21 | DEVICES |
---|
| 22 | LCV as valve_flow; |
---|
| 23 | |
---|
| 24 | SET |
---|
| 25 | LCV.MinFlow = 0 * 'kmol/h'; |
---|
| 26 | LCV.MaxFlow = 700 * 'kmol/h'; |
---|
| 27 | |
---|
| 28 | SPECIFY |
---|
| 29 | |
---|
| 30 | INITIAL |
---|
| 31 | |
---|
| 32 | GUESS |
---|
| 33 | |
---|
| 34 | DEVICES |
---|
| 35 | Feed as simple_source; |
---|
| 36 | |
---|
| 37 | SET |
---|
| 38 | |
---|
| 39 | SPECIFY |
---|
| 40 | Feed.MolarComposition(1) = 0.3; |
---|
| 41 | Feed.MolarComposition(2) = 0.3; |
---|
| 42 | Feed.MolarComposition(3) = 0.4; |
---|
| 43 | Feed.T = 338 * 'K'; |
---|
| 44 | Feed.P = 5 * 'atm'; |
---|
| 45 | |
---|
| 46 | INITIAL |
---|
| 47 | |
---|
| 48 | GUESS |
---|
| 49 | |
---|
| 50 | DEVICES |
---|
| 51 | PCV as valve_flow; |
---|
| 52 | |
---|
| 53 | SET |
---|
| 54 | PCV.MinFlow = 0 * 'kmol/h'; |
---|
| 55 | PCV.MaxFlow = 500 * 'kmol/h'; |
---|
| 56 | |
---|
| 57 | SPECIFY |
---|
| 58 | |
---|
| 59 | INITIAL |
---|
| 60 | |
---|
| 61 | GUESS |
---|
| 62 | |
---|
| 63 | DEVICES |
---|
| 64 | VaporProduct as sink; |
---|
| 65 | |
---|
| 66 | SET |
---|
| 67 | |
---|
| 68 | SPECIFY |
---|
| 69 | |
---|
| 70 | INITIAL |
---|
| 71 | |
---|
| 72 | GUESS |
---|
| 73 | |
---|
| 74 | DEVICES |
---|
| 75 | LiquidProduct as sink; |
---|
| 76 | |
---|
| 77 | SET |
---|
| 78 | |
---|
| 79 | SPECIFY |
---|
| 80 | |
---|
| 81 | INITIAL |
---|
| 82 | |
---|
| 83 | GUESS |
---|
| 84 | |
---|
| 85 | DEVICES |
---|
| 86 | FeedValve as valve_flow; |
---|
| 87 | |
---|
| 88 | SET |
---|
| 89 | FeedValve.MinFlow = 0 * 'kmol/h'; |
---|
| 90 | FeedValve.MaxFlow = 1000 * 'kmol/h'; |
---|
| 91 | |
---|
| 92 | SPECIFY |
---|
| 93 | |
---|
| 94 | INITIAL |
---|
| 95 | |
---|
| 96 | GUESS |
---|
| 97 | |
---|
| 98 | DEVICES |
---|
| 99 | FeedStep as StepSignal; |
---|
| 100 | |
---|
| 101 | SET |
---|
| 102 | FeedStep.StepTime = 1.5 * 'h'; |
---|
| 103 | FeedStep.StartValue = 0.5; |
---|
| 104 | FeedStep.FinalValue = 0.6; |
---|
| 105 | |
---|
| 106 | SPECIFY |
---|
| 107 | |
---|
| 108 | INITIAL |
---|
| 109 | |
---|
| 110 | GUESS |
---|
| 111 | |
---|
| 112 | DEVICES |
---|
| 113 | PID_PC as PID; |
---|
| 114 | |
---|
| 115 | SET |
---|
| 116 | PID_PC.PID_Select = "Parallel_AWBT"; |
---|
| 117 | PID_PC.Action = "Direct"; |
---|
| 118 | PID_PC.Mode = "Automatic"; |
---|
| 119 | PID_PC.Clip = "Clipped"; |
---|
| 120 | PID_PC.alpha = 1; |
---|
| 121 | PID_PC.beta = 1; |
---|
| 122 | PID_PC.bias = 0.5; |
---|
| 123 | PID_PC.derivTime = 18 * 's'; |
---|
| 124 | PID_PC.intTime = 72 * 's'; |
---|
| 125 | PID_PC.gain = 0.9275; |
---|
| 126 | PID_PC.gamma = 1; |
---|
| 127 | PID_PC.tau = 1 * 's'; |
---|
| 128 | PID_PC.tauSet = 1 * 's'; |
---|
| 129 | PID_PC.MinInput = 0; |
---|
| 130 | PID_PC.MaxInput = 6; |
---|
| 131 | PID_PC.MinOutput = 0; |
---|
| 132 | PID_PC.MaxOutput = 1; |
---|
| 133 | |
---|
| 134 | SPECIFY |
---|
| 135 | PID_PC.SetPoint = 0.6; |
---|
| 136 | |
---|
| 137 | INITIAL |
---|
| 138 | |
---|
| 139 | GUESS |
---|
| 140 | |
---|
| 141 | DEVICES |
---|
| 142 | PID_LC as PID; |
---|
| 143 | |
---|
| 144 | SET |
---|
| 145 | PID_LC.PID_Select = "Parallel_AWBT"; |
---|
| 146 | PID_LC.Action = "Direct"; |
---|
| 147 | PID_LC.Mode = "Automatic"; |
---|
| 148 | PID_LC.Clip = "Clipped"; |
---|
| 149 | PID_LC.alpha = 1; |
---|
| 150 | PID_LC.beta = 1; |
---|
| 151 | PID_LC.bias = 0.5; |
---|
| 152 | PID_LC.derivTime = 19 * 's'; |
---|
| 153 | PID_LC.intTime = 76 * 's'; |
---|
| 154 | PID_LC.gain = 1.1776; |
---|
| 155 | PID_LC.gamma = 1; |
---|
| 156 | PID_LC.tau = 1 * 's'; |
---|
| 157 | PID_LC.tauSet = 1 * 's'; |
---|
| 158 | PID_LC.MinInput = 0; |
---|
| 159 | PID_LC.MaxInput = 2; |
---|
| 160 | PID_LC.MinOutput = 0; |
---|
| 161 | PID_LC.MaxOutput = 1; |
---|
| 162 | |
---|
| 163 | SPECIFY |
---|
| 164 | PID_LC.SetPoint = 0.7; |
---|
| 165 | |
---|
| 166 | INITIAL |
---|
| 167 | |
---|
| 168 | GUESS |
---|
| 169 | |
---|
| 170 | DEVICES |
---|
| 171 | F101 as flash; |
---|
| 172 | |
---|
| 173 | SET |
---|
| 174 | F101.Orientation = "vertical"; |
---|
| 175 | F101.Heads = "hemispherical"; |
---|
| 176 | F101.Diameter = 2 * 'm'; |
---|
| 177 | F101.Lenght = 5 * 'm'; |
---|
| 178 | F101.Levelpercent_Initial = 0.80; |
---|
| 179 | F101.Temperature_Initial = 373 * 'K'; |
---|
| 180 | F101.Composition_Initial(1) = 0.30; |
---|
| 181 | F101.Composition_Initial(2) = 0.40; |
---|
| 182 | F101.Composition_Initial(3) = 0.30; |
---|
| 183 | |
---|
| 184 | SPECIFY |
---|
| 185 | |
---|
| 186 | INITIAL |
---|
| 187 | |
---|
| 188 | GUESS |
---|
| 189 | |
---|
| 190 | DEVICES |
---|
| 191 | heat_duty as energy_source2; |
---|
| 192 | |
---|
| 193 | SET |
---|
| 194 | |
---|
| 195 | SPECIFY |
---|
| 196 | heat_duty.OutletQ = 1026.32 * 'kW'; |
---|
| 197 | |
---|
| 198 | INITIAL |
---|
| 199 | |
---|
| 200 | GUESS |
---|
| 201 | |
---|
| 202 | CONNECTIONS |
---|
| 203 | PCV.Outlet to VaporProduct.Inlet; |
---|
| 204 | LCV.Outlet to LiquidProduct.Inlet; |
---|
| 205 | Feed.Outlet to FeedValve.Inlet; |
---|
| 206 | FeedStep.OutSignal to FeedValve.FlowFraction; |
---|
| 207 | PID_LC.Output to LCV.FlowFraction; |
---|
| 208 | PID_PC.Output to PCV.FlowFraction; |
---|
| 209 | FeedValve.Outlet to F101.Inlet; |
---|
| 210 | heat_duty.OutletQ to F101.InletQ; |
---|
| 211 | F101.OutletLiquid to LCV.Inlet; |
---|
| 212 | F101.OutletVapour to PCV.Inlet; |
---|
| 213 | F101.LI to PID_LC.Input; |
---|
| 214 | F101.PI to PID_PC.Input; |
---|
| 215 | |
---|
| 216 | OPTIONS |
---|
| 217 | Dynamic = true; |
---|
| 218 | TimeStep = 0.02; |
---|
| 219 | TimeEnd = 3; |
---|
| 220 | TimeUnit = 'h'; |
---|
| 221 | Integration = "original"; |
---|
| 222 | NLASolver( |
---|
| 223 | File = "sundials", |
---|
| 224 | RelativeAccuracy = 1e-3, |
---|
| 225 | AbsoluteAccuracy = 1e-3, |
---|
| 226 | MaxIterations = 100 |
---|
| 227 | ); |
---|
| 228 | DAESolver( |
---|
[1009] | 229 | File = "dasslc", |
---|
[918] | 230 | RelativeAccuracy = 1e-3, |
---|
| 231 | AbsoluteAccuracy = 1e-6, |
---|
| 232 | EventAccuracy = 1e-2 |
---|
| 233 | ); |
---|
| 234 | end |
---|