| 1 | #*---------------------------------------------- |
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| 2 | * FlowSheet generated automaticaly by EMSO-GUI |
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| 3 | *----------------------------------------------*# |
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| 4 | |
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| 5 | using "streams"; |
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| 6 | using "pressure_changers/valve"; |
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| 7 | using "controllers/PIDs"; |
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| 8 | using "stage_separators/flash"; |
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| 9 | |
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| 10 | FlowSheet Sample_flash_PID |
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| 11 | PARAMETERS |
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| 12 | PP as Plugin(Brief="Physical Properties", |
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| 13 | Type="PP", |
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| 14 | Components = ["n-butane","benzene","n-octane"], |
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| 15 | LiquidModel = "SRK", |
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| 16 | VapourModel = "SRK" |
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| 17 | ); |
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| 18 | NComp as Integer; |
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| 19 | SET |
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| 20 | NComp = PP.NumberOfComponents; |
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| 21 | |
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| 22 | DEVICES |
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| 23 | HeatToFlash as energy_source; |
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| 24 | |
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| 25 | SET |
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| 26 | |
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| 27 | SPECIFY |
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| 28 | HeatToFlash.OutletQ = 1026.32 * 'kW'; |
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| 29 | |
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| 30 | INITIAL |
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| 31 | |
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| 32 | GUESS |
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| 33 | |
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| 34 | DEVICES |
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| 35 | Feed as simple_source; |
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| 36 | |
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| 37 | SET |
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| 38 | |
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| 39 | SPECIFY |
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| 40 | Feed.MolarComposition(1) = 0.3; |
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| 41 | Feed.MolarComposition(2) = 0.3; |
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| 42 | Feed.MolarComposition(3) = 0.4; |
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| 43 | Feed.F = 500 * 'kmol/h'; |
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| 44 | Feed.T = 338 * 'K'; |
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| 45 | Feed.P = 5 * 'atm'; |
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| 46 | |
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| 47 | INITIAL |
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| 48 | |
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| 49 | GUESS |
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| 50 | |
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| 51 | DEVICES |
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| 52 | VaporProduct as sink; |
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| 53 | |
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| 54 | SET |
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| 55 | |
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| 56 | SPECIFY |
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| 57 | |
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| 58 | INITIAL |
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| 59 | |
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| 60 | GUESS |
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| 61 | |
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| 62 | DEVICES |
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| 63 | valve_liquid as valve_flow; |
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| 64 | |
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| 65 | SET |
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| 66 | |
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| 67 | SPECIFY |
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| 68 | |
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| 69 | INITIAL |
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| 70 | |
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| 71 | GUESS |
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| 72 | |
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| 73 | DEVICES |
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| 74 | valve_Vapour as valve_flow; |
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| 75 | |
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| 76 | SET |
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| 77 | |
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| 78 | SPECIFY |
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| 79 | |
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| 80 | INITIAL |
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| 81 | |
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| 82 | GUESS |
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| 83 | |
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| 84 | DEVICES |
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| 85 | PID_LC as PID; |
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| 86 | |
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| 87 | SET |
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| 88 | PID_LC.PID_Select = "Parallel_AWBT"; |
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| 89 | PID_LC.Action = "Direct"; |
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| 90 | PID_LC.Mode = "Automatic"; |
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| 91 | PID_LC.Clip = "Clipped"; |
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| 92 | PID_LC.alpha = 1; |
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| 93 | PID_LC.beta = 1; |
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| 94 | PID_LC.bias = 0.5; |
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| 95 | PID_LC.derivTime = 19 * 's'; |
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| 96 | PID_LC.intTime = 76 * 's'; |
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| 97 | PID_LC.gain = 1.1776; |
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| 98 | PID_LC.gamma = 1; |
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| 99 | PID_LC.tau = 1 * 's'; |
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| 100 | PID_LC.tauSet = 1 * 's'; |
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| 101 | PID_LC.MinInput = 0; |
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| 102 | PID_LC.MaxInput = 2; |
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| 103 | PID_LC.MinOutput = 0; |
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| 104 | PID_LC.MaxOutput = 1; |
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| 105 | |
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| 106 | SPECIFY |
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| 107 | PID_LC.SetPoint = 0.7; |
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| 108 | |
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| 109 | INITIAL |
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| 110 | |
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| 111 | GUESS |
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| 112 | |
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| 113 | DEVICES |
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| 114 | PID_PC as PID; |
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| 115 | |
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| 116 | SET |
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| 117 | PID_PC.PID_Select = "Parallel_AWBT"; |
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| 118 | PID_PC.Action = "Direct"; |
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| 119 | PID_PC.Mode = "Automatic"; |
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| 120 | PID_PC.Clip = "Clipped"; |
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| 121 | PID_PC.alpha = 1; |
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| 122 | PID_PC.beta = 1; |
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| 123 | PID_PC.bias = 0.5; |
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| 124 | PID_PC.derivTime = 18 * 's'; |
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| 125 | PID_PC.intTime = 72 * 's'; |
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| 126 | PID_PC.gain = 0.9275; |
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| 127 | PID_PC.gamma = 1; |
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| 128 | PID_PC.tau = 1 * 's'; |
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| 129 | PID_PC.tauSet = 1 * 's'; |
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| 130 | PID_PC.MinInput = 0; |
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| 131 | PID_PC.MaxInput = 4; |
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| 132 | PID_PC.MinOutput = 0; |
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| 133 | PID_PC.MaxOutput = 1; |
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| 134 | |
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| 135 | SPECIFY |
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| 136 | PID_PC.SetPoint = 0.6; |
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| 137 | |
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| 138 | INITIAL |
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| 139 | |
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| 140 | GUESS |
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| 141 | |
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| 142 | DEVICES |
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| 143 | F101_1 as flash; |
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| 144 | |
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| 145 | SET |
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| 146 | F101_1.VesselVolume = 8 * 'm^3'; |
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| 147 | F101_1.Orientation = "vertical"; |
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| 148 | F101_1.Diameter = 3.1 * 'm'; |
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| 149 | F101_1.Levelpercent_Initial = 0.70; |
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| 150 | F101_1.Temperature_Initial = 383 * 'K'; |
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| 151 | F101_1.Composition_Initial(1) = 0.3; |
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| 152 | F101_1.Composition_Initial(2) = 0.4; |
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| 153 | F101_1.Composition_Initial(3) = 0.3; |
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| 154 | |
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| 155 | SPECIFY |
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| 156 | |
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| 157 | INITIAL |
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| 158 | |
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| 159 | GUESS |
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| 160 | |
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| 161 | DEVICES |
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| 162 | LiquidProduct as simple_sink; |
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| 163 | |
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| 164 | SET |
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| 165 | |
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| 166 | SPECIFY |
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| 167 | |
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| 168 | INITIAL |
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| 169 | |
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| 170 | GUESS |
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| 171 | |
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| 172 | CONNECTIONS |
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| 173 | valve_Vapour.Outlet to VaporProduct.Inlet; |
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| 174 | PID_LC.Output to valve_liquid.FlowFraction; |
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| 175 | PID_PC.Output to valve_Vapour.FlowFraction; |
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| 176 | F101_1.OutletVapour to valve_Vapour.Inlet; |
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| 177 | F101_1.OutletLiquid to valve_liquid.Inlet; |
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| 178 | Feed.Outlet to F101_1.Inlet; |
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| 179 | HeatToFlash.OutletQ to F101_1.InletQ; |
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| 180 | F101_1.LI to PID_LC.Input; |
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| 181 | F101_1.PI to PID_PC.Input; |
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| 182 | valve_liquid.Outlet to LiquidProduct.Inlet; |
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| 183 | |
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| 184 | OPTIONS |
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| 185 | Dynamic = true; |
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| 186 | TimeStep = 0.2; |
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| 187 | TimeEnd = 1; |
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| 188 | TimeUnit = 'h'; |
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| 189 | Integration = "original"; |
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| 190 | NLASolver( |
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| 191 | File = "sundials", |
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| 192 | RelativeAccuracy = 1e-3, |
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| 193 | AbsoluteAccuracy = 1e-3, |
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| 194 | MaxIterations = 100 |
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| 195 | ); |
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| 196 | DAESolver( |
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| 197 | File = "sundials", |
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| 198 | RelativeAccuracy = 1e-2, |
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| 199 | AbsoluteAccuracy = 1e-6, |
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| 200 | EventAccuracy = 1e-2 |
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| 201 | ); |
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| 202 | end |
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