| 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 model E_Shell_NTU_Det |
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| 17 | *-------------------------------------------------------------------- |
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| 18 | * |
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| 19 | * This sample file needs VRTherm DEMO (www.vrtech.com.br) to run. |
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| 20 | * |
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| 21 | *---------------------------------------------------------------------- |
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| 22 | * Author: Gerson B. Bicca |
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| 23 | * $Id: NTU_Method.mso 89 2006-12-11 15:26:11Z paula $ |
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| 24 | *--------------------------------------------------------------------*# |
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| 25 | using "heat_exchangers/HeatExchangerDetailed.mso"; |
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| 26 | |
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| 27 | FlowSheet NTU_Method |
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| 28 | |
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| 29 | |
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| 30 | DEVICES |
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| 31 | |
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| 32 | exchanger as E_Shell_NTU_Det; |
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| 33 | streamhot as streamTP; |
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| 34 | streamcold as streamTP; |
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| 35 | |
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| 36 | CONNECTIONS |
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| 37 | |
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| 38 | streamhot to exchanger.Inlet.Hot; |
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| 39 | streamcold to exchanger.Inlet.Cold; |
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| 40 | |
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| 41 | PARAMETERS |
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| 42 | |
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| 43 | PP as CalcObject (File="vrpp"); |
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| 44 | NComp as Integer; |
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| 45 | |
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| 46 | SET |
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| 47 | #=============================================================== |
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| 48 | # Components - State Equation - Correlations |
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| 49 | #=============================================================== |
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| 50 | |
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| 51 | PP.LiquidModel = "RK"; |
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| 52 | PP.VapourModel = "RK"; |
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| 53 | PP.Components = ["water"]; |
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| 54 | NComp = PP.NumberOfComponents; |
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| 55 | exchanger.HE.HotSide = "Shell"; |
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| 56 | |
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| 57 | exchanger.HE.TurbulentFlow = "Petukhov"; |
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| 58 | # exchanger.HE.TurbulentFlow = "SiederTate"; |
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| 59 | |
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| 60 | #===================================================================== |
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| 61 | # Shell Geometrical Parameters |
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| 62 | #===================================================================== |
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| 63 | exchanger.Tpass = 2; |
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| 64 | exchanger.Dishell = 1.2 *"m"; |
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| 65 | exchanger.Lcf = 0.007 *"m"; |
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| 66 | exchanger.Nss = 3; |
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| 67 | |
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| 68 | |
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| 69 | #===================================================================== |
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| 70 | # Tubes Geometrical Parameters |
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| 71 | #===================================================================== |
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| 72 | exchanger.Ntt = 360; |
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| 73 | exchanger.Pattern = 30; |
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| 74 | exchanger.pitch = 0.03048 *"m"; |
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| 75 | exchanger.Ltube = 5.3 *"m"; |
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| 76 | exchanger.Ditube = 0.01397 *"m"; |
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| 77 | exchanger.Dotube = 0.025146 *"m"; |
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| 78 | exchanger.Kwall = 0.5588 *"W/m/K"; |
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| 79 | |
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| 80 | #===================================================================== |
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| 81 | # Baffles Geometrical Parameters |
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| 82 | #===================================================================== |
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| 83 | exchanger.Lcd = 5.5e-3 *"m"; |
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| 84 | exchanger.Bc = 25; |
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| 85 | exchanger.Ltd = 5e-4 *"m"; |
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| 86 | exchanger.Nb = 5; |
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| 87 | exchanger.Donozzle_Shell = 0.15405 *"m"; |
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| 88 | exchanger.Dinozzle_Shell = 0.15405 *"m"; |
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| 89 | exchanger.Honozzle_Shell = 0.0225 *"m"; |
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| 90 | exchanger.Hinozzle_Shell = 0.0225 *"m"; |
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| 91 | exchanger.Donozzle_Tube = 0.15405 *"m"; |
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| 92 | exchanger.Dinozzle_Tube = 0.15405 *"m"; |
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| 93 | |
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| 94 | SPECIFY |
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| 95 | #============================================ |
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| 96 | # Hot Streams |
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| 97 | #============================================ |
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| 98 | streamhot.F = 100 * "kmol/h"; |
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| 99 | streamhot.T = 419 * "K"; |
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| 100 | streamhot.P = 1 * "atm"; |
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| 101 | streamhot.z = [1]; |
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| 102 | |
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| 103 | #============================================ |
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| 104 | # Cold Streams |
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| 105 | #============================================ |
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| 106 | streamcold.F = 50 * "kmol/h"; |
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| 107 | streamcold.P = 1 * "atm"; |
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| 108 | streamcold.T = 363 * "K"; |
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| 109 | streamcold.z = [1]; |
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| 110 | #===================================================================== |
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| 111 | # Baffles Spacing |
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| 112 | #===================================================================== |
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| 113 | |
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| 114 | exchanger.Baffles.Ls = 1 *"m"; |
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| 115 | exchanger.Baffles.Lsi = 1 *"m"; |
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| 116 | |
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| 117 | |
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| 118 | OPTIONS |
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| 119 | #============================================ |
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| 120 | # Simulation Options |
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| 121 | #============================================ |
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| 122 | mode = "steady"; |
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| 123 | relativeAccuracy = 1e-8; |
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| 124 | |
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| 125 | end |
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