| 1 | #*------------------------------------------------------------------- |
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| 2 | * EMSO Model Library (EML) Copyright (C) 2004 - 2007 ALSOC. |
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| 3 | * |
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| 4 | * This LIBRARY is free software; you can distribute it and/or modify |
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| 5 | * it under the therms of the ALSOC FREE LICENSE as available at |
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| 6 | * http://www.enq.ufrgs.br/alsoc. |
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| 7 | * |
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| 8 | * EMSO Copyright (C) 2004 - 2007 ALSOC, original code |
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| 9 | * from http://www.rps.eng.br Copyright (C) 2002-2004. |
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| 10 | * All rights reserved. |
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| 11 | * |
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| 12 | * EMSO is distributed under the therms of the ALSOC LICENSE as |
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| 13 | * available at http://www.enq.ufrgs.br/alsoc. |
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| 14 | * |
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| 15 | *-------------------------------------------------------------------- |
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| 16 | * Sample file for optimization |
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| 17 | *-------------------------------------------------------------------- |
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| 18 | * |
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| 19 | * This sample file needs VRTherm (www.vrtech.com.br) to run. |
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| 20 | * |
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| 21 | *---------------------------------------------------------------------- |
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| 22 | * Author: Rafael de Pelegrini Soares |
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| 23 | * $Id: flash_opt.mso 85 2006-12-08 20:43:24Z paula $ |
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| 24 | *--------------------------------------------------------------------*# |
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| 25 | |
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| 26 | using "stage_separators/flash"; |
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| 27 | |
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| 28 | # exemplo baseado nos dados do artigo do Gani 1985. |
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| 29 | FlowSheet FlashSteadyTest |
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| 30 | PARAMETERS |
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| 31 | PP as CalcObject(Brief="Physical Properties",File="vrpp"); |
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| 32 | NComp as Integer; |
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| 33 | |
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| 34 | VARIABLES |
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| 35 | Q as heat_rate (Brief="Heat supplied"); |
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| 36 | leves as fraction; |
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| 37 | |
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| 38 | SET |
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| 39 | PP.Components = ["1,3-butadiene", "isobutene", "n-pentane", "1-pentene", "1-hexene", "benzene"]; |
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| 40 | PP.LiquidModel = "PR"; |
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| 41 | PP.VapourModel = "PR"; |
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| 42 | NComp = PP.NumberOfComponents; |
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| 43 | |
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| 44 | DEVICES |
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| 45 | fl as flash_Steady; |
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| 46 | s1 as stream_therm; |
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| 47 | |
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| 48 | CONNECTIONS |
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| 49 | s1 to fl.Inlet; |
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| 50 | Q to fl.Q; |
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| 51 | |
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| 52 | EQUATIONS |
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| 53 | leves = fl.OutletV.z(1)+fl.OutletV.z(2); |
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| 54 | |
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| 55 | SPECIFY |
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| 56 | s1.F = 496.3 * "kmol/h"; |
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| 57 | s1.T = 338 * "K"; |
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| 58 | s1.P = 507.1 * "kPa"; |
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| 59 | s1.v = 0.1380; |
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| 60 | s1.z = [0.2379,0.3082,0.09959,0.1373,0.08872,0.1283]; |
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| 61 | |
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| 62 | fl.OutletL.P = 2.5 * "atm"; |
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| 63 | |
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| 64 | #Q = 0 * "kJ/h"; |
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| 65 | fl.OutletL.T = 315.06 * "K"; |
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| 66 | |
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| 67 | OPTIONS |
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| 68 | mode = "steady"; |
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| 69 | end |
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| 70 | |
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| 71 | #* |
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| 72 | * Maximização da pureza dos leves no topo do flash. |
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| 73 | * Achou : 0.83 frente a 0.79 da simulação do FlowSheet |
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| 74 | *# |
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| 75 | Optimization FlashOpt1 as FlashSteadyTest |
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| 76 | MAXIMIZE |
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| 77 | leves; |
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| 78 | |
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| 79 | FREE |
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| 80 | fl.OutletL.T; |
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| 81 | #fl.OutletL.P; |
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| 82 | |
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| 83 | EQUATIONS |
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| 84 | fl.OutletL.T < 320 * "K"; |
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| 85 | fl.OutletL.T > 300 * "K"; |
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| 86 | |
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| 87 | OPTIONS |
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| 88 | mode = "steady"; |
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| 89 | end |
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| 90 | |
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