| 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.mso"; |
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| 6 | using "pressure_changers/valve.mso"; |
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| 7 | using "controllers/PIDs.mso"; |
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| 8 | using "stage_separators/tank.mso"; |
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| 9 | |
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| 10 | FlowSheet Sample_TankL_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 | valve_liquid as valve_flow; |
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| 25 | PID_LC as PID; |
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| 26 | LiquidProduct as simple_sink; |
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| 27 | Heat_Duty as energy_source2; |
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| 28 | TankL_1 as TankL; |
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| 29 | |
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| 30 | CONNECTIONS |
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| 31 | PID_LC.Output to valve_liquid.FlowFraction; |
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| 32 | valve_liquid.Outlet to LiquidProduct.Inlet; |
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| 33 | Feed.Outlet to TankL_1.Inlet; |
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| 34 | Heat_Duty.OutletQ to TankL_1.InletQ; |
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| 35 | TankL_1.OutletLiquid to valve_liquid.Inlet; |
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| 36 | TankL_1.LI to PID_LC.Input; |
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| 37 | |
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| 38 | SET |
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| 39 | PID_LC.PID_Select = "Parallel_AWBT" ; |
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| 40 | PID_LC.Action = "Direct" ; |
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| 41 | PID_LC.Mode = "Automatic" ; |
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| 42 | PID_LC.Clip = "Clipped" ; |
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| 43 | PID_LC.alpha = 1 ; |
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| 44 | PID_LC.beta = 1 ; |
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| 45 | PID_LC.bias = 0.5 ; |
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| 46 | PID_LC.derivTime = 19 * 's' ; |
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| 47 | PID_LC.intTime = 76 * 's' ; |
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| 48 | PID_LC.gain = 1.1776 ; |
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| 49 | PID_LC.gamma = 1 ; |
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| 50 | PID_LC.tau = 1 * 's' ; |
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| 51 | PID_LC.tauSet = 1 * 's' ; |
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| 52 | PID_LC.MinInput = 0 ; |
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| 53 | PID_LC.MaxInput = 2 ; |
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| 54 | PID_LC.MinOutput = 0 ; |
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| 55 | PID_LC.MaxOutput = 1 ; |
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| 56 | TankL_1.Levelpercent_Initial = 0.80 ; |
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| 57 | |
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| 58 | SPECIFY |
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| 59 | Feed.MolarComposition(1) = 0.3 ; |
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| 60 | Feed.MolarComposition(2) = 0.3 ; |
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| 61 | Feed.MolarComposition(3) = 0.4 ; |
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| 62 | Feed.F = 500 * 'kmol/h' ; |
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| 63 | Feed.T = 338 * 'K' ; |
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| 64 | Feed.P = 5 * 'atm' ; |
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| 65 | PID_LC.SetPoint = 0.7 ; |
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| 66 | Heat_Duty.OutletQ = 0 * 'kW' ; |
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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 | OPTIONS |
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| 73 | Dynamic = true; |
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| 74 | TimeStep = 0.2; |
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| 75 | TimeEnd = 12; |
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| 76 | TimeUnit = 'h'; |
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| 77 | Integration = "original"; |
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| 78 | NLASolver( |
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| 79 | File = "sundials", |
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| 80 | RelativeAccuracy = 1e-3, |
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| 81 | AbsoluteAccuracy = 1e-3, |
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| 82 | MaxIterations = 100 |
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| 83 | ); |
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| 84 | DAESolver( |
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| 85 | File = "sundials", |
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| 86 | RelativeAccuracy = 1e-2, |
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| 87 | AbsoluteAccuracy = 1e-6, |
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| 88 | EventAccuracy = 1e-2 |
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| 89 | ); |
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| 90 | end |
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