| 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/tank"; |
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| 9 | |
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| 10 | FlowSheet Sample_TankVL_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 | Feed as simple_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 | Feed.MolarComposition(1) = 0.3; |
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| 29 | Feed.MolarComposition(2) = 0.3; |
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| 30 | Feed.MolarComposition(3) = 0.4; |
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| 31 | Feed.F = 500 * 'kmol/h'; |
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| 32 | Feed.T = 338 * 'K'; |
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| 33 | Feed.P = 5 * 'atm'; |
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| 34 | |
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| 35 | INITIAL |
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| 36 | |
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| 37 | GUESS |
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| 38 | |
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| 39 | DEVICES |
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| 40 | VaporProduct as sink; |
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| 41 | |
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| 42 | SET |
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| 43 | |
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| 44 | SPECIFY |
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| 45 | |
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| 46 | INITIAL |
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| 47 | |
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| 48 | GUESS |
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| 49 | |
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| 50 | DEVICES |
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| 51 | valve_liquid as valve_flow; |
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| 52 | |
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| 53 | SET |
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| 54 | |
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| 55 | SPECIFY |
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| 56 | |
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| 57 | INITIAL |
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| 58 | |
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| 59 | GUESS |
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| 60 | |
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| 61 | DEVICES |
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| 62 | valve_Vapour as valve_flow; |
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| 63 | |
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| 64 | SET |
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| 65 | |
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| 66 | SPECIFY |
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| 67 | |
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| 68 | INITIAL |
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| 69 | |
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| 70 | GUESS |
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| 71 | |
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| 72 | DEVICES |
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| 73 | PID_LC as PID; |
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| 74 | |
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| 75 | SET |
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| 76 | PID_LC.PID_Select = "Parallel_AWBT"; |
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| 77 | PID_LC.Action = "Direct"; |
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| 78 | PID_LC.Mode = "Automatic"; |
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| 79 | PID_LC.Clip = "Clipped"; |
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| 80 | PID_LC.alpha = 1; |
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| 81 | PID_LC.beta = 1; |
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| 82 | PID_LC.bias = 0.5; |
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| 83 | PID_LC.derivTime = 19 * 's'; |
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| 84 | PID_LC.intTime = 76 * 's'; |
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| 85 | PID_LC.gain = 1.1776; |
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| 86 | PID_LC.gamma = 1; |
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| 87 | PID_LC.tau = 1 * 's'; |
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| 88 | PID_LC.tauSet = 1 * 's'; |
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| 89 | PID_LC.MinInput = 0; |
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| 90 | PID_LC.MaxInput = 2; |
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| 91 | PID_LC.MinOutput = 0; |
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| 92 | PID_LC.MaxOutput = 1; |
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| 93 | |
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| 94 | SPECIFY |
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| 95 | PID_LC.SetPoint = 0.7; |
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| 96 | |
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| 97 | INITIAL |
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| 98 | |
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| 99 | GUESS |
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| 100 | |
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| 101 | DEVICES |
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| 102 | PID_PC as PID; |
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| 103 | |
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| 104 | SET |
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| 105 | PID_PC.PID_Select = "Parallel_AWBT"; |
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| 106 | PID_PC.Action = "Direct"; |
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| 107 | PID_PC.Mode = "Automatic"; |
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| 108 | PID_PC.Clip = "Clipped"; |
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| 109 | PID_PC.alpha = 1; |
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| 110 | PID_PC.beta = 1; |
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| 111 | PID_PC.bias = 0.5; |
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| 112 | PID_PC.derivTime = 18 * 's'; |
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| 113 | PID_PC.intTime = 72 * 's'; |
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| 114 | PID_PC.gain = 0.9275; |
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| 115 | PID_PC.gamma = 1; |
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| 116 | PID_PC.tau = 1 * 's'; |
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| 117 | PID_PC.tauSet = 1 * 's'; |
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| 118 | PID_PC.MinInput = 0; |
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| 119 | PID_PC.MaxInput = 4; |
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| 120 | PID_PC.MinOutput = 0; |
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| 121 | PID_PC.MaxOutput = 1; |
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| 122 | |
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| 123 | SPECIFY |
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| 124 | PID_PC.SetPoint = 0.6; |
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| 125 | |
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| 126 | INITIAL |
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| 127 | |
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| 128 | GUESS |
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| 129 | |
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| 130 | DEVICES |
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| 131 | LiquidProduct as simple_sink; |
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| 132 | |
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| 133 | SET |
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| 134 | |
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| 135 | SPECIFY |
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| 136 | |
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| 137 | INITIAL |
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| 138 | |
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| 139 | GUESS |
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| 140 | |
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| 141 | DEVICES |
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| 142 | Heat_Duty as energy_source2; |
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| 143 | |
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| 144 | SET |
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| 145 | |
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| 146 | SPECIFY |
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| 147 | Heat_Duty.OutletQ = 0 * 'kW'; |
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| 148 | |
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| 149 | INITIAL |
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| 150 | |
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| 151 | GUESS |
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| 152 | |
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| 153 | DEVICES |
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| 154 | V001 as TankVL; |
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| 155 | |
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| 156 | SET |
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| 157 | V001.Orientation = "horizontal"; |
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| 158 | V001.Heads = "elliptical"; |
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| 159 | V001.Diameter = 3.1 * 'm'; |
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| 160 | V001.Lenght = 6 * 'm'; |
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| 161 | V001.Levelpercent_Initial = 0.5; |
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| 162 | V001.Temperature_Initial = 300 * 'K'; |
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| 163 | |
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| 164 | SPECIFY |
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| 165 | |
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| 166 | INITIAL |
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| 167 | |
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| 168 | GUESS |
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| 169 | |
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| 170 | CONNECTIONS |
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| 171 | valve_Vapour.Outlet to VaporProduct.Inlet; |
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| 172 | PID_LC.Output to valve_liquid.FlowFraction; |
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| 173 | PID_PC.Output to valve_Vapour.FlowFraction; |
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| 174 | valve_liquid.Outlet to LiquidProduct.Inlet; |
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| 175 | Feed.Outlet to V001.Inlet; |
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| 176 | V001.OutletVapour to valve_Vapour.Inlet; |
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| 177 | V001.PI to PID_PC.Input; |
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| 178 | V001.LI to PID_LC.Input; |
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| 179 | Heat_Duty.OutletQ to V001.InletQ; |
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| 180 | V001.OutletLiquid to valve_liquid.Inlet; |
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| 181 | |
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| 182 | OPTIONS |
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| 183 | Dynamic = true; |
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| 184 | TimeStep = 0.2; |
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| 185 | TimeEnd = 12; |
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| 186 | TimeUnit = 'h'; |
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| 187 | Integration = "original"; |
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| 188 | NLASolver( |
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| 189 | File = "sundials", |
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| 190 | RelativeAccuracy = 1e-3, |
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| 191 | AbsoluteAccuracy = 1e-3, |
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| 192 | MaxIterations = 100 |
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| 193 | ); |
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| 194 | DAESolver( |
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| 195 | File = "sundials", |
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| 196 | RelativeAccuracy = 1e-2, |
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| 197 | AbsoluteAccuracy = 1e-6, |
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| 198 | EventAccuracy = 1e-2 |
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| 199 | ); |
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| 200 | end |
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