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 | * File containg models of columns: distillation, stripping, absorbers |
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17 | * rectifier, .... |
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18 | * |
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19 | * The default nomenclature is: |
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20 | * Type_Column_reboilertype_condensertyper |
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21 | * |
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22 | * where: |
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23 | * Type = refluxed or reboiled or section |
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24 | * Column = Stripping, Absorption, Rectifier, Distillation |
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25 | * Reboiler type (if exists) = kettle or thermosyphon |
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26 | * Condenser type (if exists) = with subccoling or without subcooling |
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27 | * |
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28 | *----------------------------------------------------------------------- |
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29 | * Author: Paula B. Staudt |
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30 | * $Id: column.mso 511 2008-05-12 17:25:33Z paula $ |
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31 | *---------------------------------------------------------------------*# |
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32 | |
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33 | using "trayTeste"; |
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34 | using "reboilerTeste"; |
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35 | using "condenser"; |
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36 | using "mixers_splitters/splitter"; |
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37 | using "tank"; |
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38 | using "pressure_changers/pump"; |
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39 | |
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40 | #*---------------------------------------------------------------------- |
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41 | * Model of a column section with: |
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42 | * - NumberOfTrays=number of trays. |
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43 | * |
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44 | *---------------------------------------------------------------------*# |
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45 | Model Section_ColumnTeste |
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46 | |
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47 | ATTRIBUTES |
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48 | Pallete = true; |
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49 | Icon = "icon/SectionColumn"; |
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50 | Brief = "Model of a column section."; |
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51 | Info = |
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52 | "== Model of a column section containing == |
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53 | * NumberOfTrays trays. |
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54 | |
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55 | == Specify == |
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56 | * the feed stream of each tray (Inlet); |
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57 | * the Murphree eficiency for each tray Emv; |
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58 | * the InletL stream of the top tray; |
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59 | * the InletV stream of the bottom tray. |
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60 | |
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61 | == Initial Conditions == |
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62 | * the trays temperature (OutletL.T); |
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63 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
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64 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray. |
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65 | "; |
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66 | |
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67 | PARAMETERS |
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68 | outer PP as Plugin (Brief="External Physical Properties", Type="PP"); |
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69 | outer NComp as Integer (Brief="Number of components"); |
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70 | NumberOfTrays as Integer (Brief="Number of trays", Default=8); |
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71 | SpecialTrayIndex(NumberOfTrays) as Integer (Brief="Number of trays", Default=0,Hidden=true); |
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72 | FeedTrayLocation as Integer (Brief="Feed tray Location", Default=2); |
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73 | g as acceleration (Brief="Gravity Acceleration",Default=9.81,Hidden=true); |
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74 | Mw(NComp) as molweight (Brief="Component Mol Weight",Hidden=true); |
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75 | |
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76 | VapourFlowModel as Switcher (Valid = ["Reepmeyer", "Feehery_Fv", "Roffel_Fv", "Klingberg", "Wang_Fv", "Elgue"], Default = "Reepmeyer"); |
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77 | LiquidFlowModel as Switcher (Valid = ["default", "Wang_Fl", "Olsen", "Feehery_Fl", "Roffel_Fl"], Default = "default"); |
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78 | |
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79 | VolumeOfTray as volume (Brief="Total Volume of the tray"); |
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80 | HeatSupply as heat_rate (Brief="Rate of heat supply"); |
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81 | PlateArea as area (Brief="Plate area = Atray - Adowncomer"); |
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82 | |
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83 | HolesArea as area (Brief="Total holes area"); |
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84 | WeirLength as length (Brief="Weir length"); |
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85 | WeirHeight as length (Brief="Weir height"); |
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86 | FeeheryCoeff as Real (Brief="Feeherys correlation coefficient", Unit='1/m^4', Default=1); |
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87 | ElgueCoeff as Real (Brief="Elgues correlation coefficient", Unit='kg/m/mol^2', Default=1); |
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88 | OlsenCoeff as Real (Brief="Olsens correlation coefficient", Default=1); |
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89 | TrayLiquidPasses as Real (Brief="Number of liquid passes in the tray", Default=1); |
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90 | |
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91 | TopTemperature as temperature; |
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92 | TbottomTemperature as temperature; |
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93 | LevelFraction as fraction (Brief = "Level Fraction"); |
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94 | |
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95 | TopComposition(NComp) as fraction (Brief = "Component Molar Fraction at Top"); |
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96 | BottomComposition(NComp) as fraction (Brief = "Component Molar Fraction at Bottom"); |
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97 | |
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98 | V as volume (Brief="Total Volume of the tray",Hidden=true); |
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99 | Q as heat_rate (Brief="Rate of heat supply",Hidden=true); |
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100 | Ap as area (Brief="Plate area = Atray - Adowncomer",Hidden=true); |
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101 | |
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102 | Ah as area (Brief="Total holes area",Hidden=true); |
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103 | lw as length (Brief="Weir length",Hidden=true); |
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104 | hw as length (Brief="Weir height",Hidden=true); |
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105 | beta as fraction (Brief="Aeration fraction"); |
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106 | alfa as fraction (Brief="Dry pressure drop coefficient"); |
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107 | w as Real (Brief="Feeherys correlation coefficient", Unit='1/m^4', Default=1,Hidden=true); |
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108 | btray as Real (Brief="Elgues correlation coefficient", Unit='kg/m/mol^2', Default=1,Hidden=true); |
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109 | fw as Real (Brief="Olsens correlation coefficient", Default=1,Hidden=true); |
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110 | Np as Real (Brief="Number of liquid passes in the tray", Default=1,Hidden=true); |
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111 | |
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112 | VapourFlow as Switcher (Valid = ["on", "off"], Default = "on",Hidden=true); |
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113 | LiquidFlow as Switcher (Valid = ["on", "off"], Default = "on",Hidden=true); |
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114 | |
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115 | SET |
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116 | SpecialTrayIndex(FeedTrayLocation) =1; |
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117 | Mw = PP.MolecularWeight(); |
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118 | |
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119 | V=VolumeOfTray; |
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120 | Q=HeatSupply; |
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121 | Ap=PlateArea; |
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122 | Ah=HolesArea; |
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123 | lw=WeirLength; |
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124 | hw=WeirHeight ; |
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125 | w=FeeheryCoeff; |
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126 | btray=ElgueCoeff; |
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127 | fw=OlsenCoeff; |
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128 | Np=TrayLiquidPasses; |
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129 | |
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130 | VARIABLES |
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131 | |
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132 | in FeedTray as stream (Brief="Feed stream", PosX=0, PosY=0.55); |
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133 | |
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134 | in LiquidInlet as stream (Brief="Liquid Inlet in the section", PosX=0.80, PosY=0); |
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135 | out VapourOutlet as vapour_stream (Brief="Vapour Outlet in the section", PosX=0.30, PosY=0); |
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136 | |
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137 | trays(NumberOfTrays) as trayTeste (Brief="Number of trays"); |
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138 | |
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139 | in VapourInlet as stream (Brief="Vapour Inlet in the section", PosX=0.30, PosY=1); |
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140 | out LiquidOutlet as liquid_stream (Brief="Liquid Outlet in the section", PosX=0.80, PosY=1); |
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141 | |
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142 | LiquidConnector as stream (Brief="Liquid connection at the middle trays", PosX=0.75, PosY=1,Hidden=true); |
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143 | VapourConnector as stream (Brief="Vapour connection at the middle trays", PosX=0.55, PosY=0,Hidden=true); |
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144 | |
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145 | MurphreeEff as Real (Brief = "Murphree efficiency"); |
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146 | |
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147 | CONNECTIONS |
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148 | |
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149 | trays([2:NumberOfTrays]).OutletV to trays([1:NumberOfTrays-1]).InletV; |
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150 | trays([1:NumberOfTrays-1]).OutletL to trays([2:NumberOfTrays]).InletL; |
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151 | |
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152 | LiquidConnector to trays(1).InletL; |
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153 | VapourConnector to trays(NumberOfTrays).InletV; |
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154 | |
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155 | EQUATIONS |
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156 | |
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157 | LiquidConnector.F= LiquidInlet.F; |
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158 | LiquidConnector.T = LiquidInlet.T; |
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159 | LiquidConnector.P = LiquidInlet.P; |
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160 | LiquidConnector.z = LiquidInlet.z; |
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161 | LiquidConnector.v = LiquidInlet.v; |
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162 | LiquidConnector.h = LiquidInlet.h; |
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163 | |
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164 | VapourConnector.F= VapourInlet.F; |
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165 | VapourConnector.T = VapourInlet.T; |
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166 | VapourConnector.P = VapourInlet.P; |
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167 | VapourConnector.z = VapourInlet.z; |
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168 | VapourConnector.v = VapourInlet.v; |
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169 | VapourConnector.h = VapourInlet.h; |
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170 | |
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171 | LiquidOutlet.F= trays(NumberOfTrays).OutletL.F; |
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172 | LiquidOutlet.T = trays(NumberOfTrays).OutletL.T; |
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173 | LiquidOutlet.P = trays(NumberOfTrays).OutletL.P; |
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174 | LiquidOutlet.z = trays(NumberOfTrays).OutletL.z; |
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175 | |
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176 | VapourOutlet.F= trays(1).OutletV.F; |
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177 | VapourOutlet.T = trays(1).OutletV.T; |
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178 | VapourOutlet.P = trays(1).OutletV.P; |
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179 | VapourOutlet.z = trays(1).OutletV.z; |
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180 | |
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181 | # Connecting Trays |
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182 | FeedTray.F*SpecialTrayIndex= trays.Inlet.F; |
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183 | FeedTray.T = trays.Inlet.T; |
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184 | FeedTray.P = trays.Inlet.P; |
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185 | FeedTray.z = trays.Inlet.z; |
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186 | FeedTray.v = trays.Inlet.v; |
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187 | FeedTray.h = trays.Inlet.h; |
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188 | |
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189 | for i in [1:NumberOfTrays] do |
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190 | |
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191 | "Murphree Efficiency" |
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192 | trays(i).OutletV.z = MurphreeEff * (trays(i).yideal - trays(i).InletV.z) + trays(i).InletV.z; |
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193 | |
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194 | "Level of clear liquid over the weir" |
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195 | trays(i).Level = trays(i).ML*trays(i).vL/Ap; |
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196 | |
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197 | "Geometry Constraint" |
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198 | V = trays(i).ML* trays(i).vL + trays(i).MV*trays(i).vV; |
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199 | |
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200 | "Energy Holdup" |
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201 | trays(i).E = trays(i).ML*trays(i).OutletL.h + trays(i).MV*trays(i).OutletV.h - trays(i).OutletL.P*V; |
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202 | |
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203 | "Energy Balance" |
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204 | diff(trays(i).E) = ( trays(i).Inlet.F*trays(i).Inlet.h + trays(i).InletL.F*trays(i).InletL.h + trays(i).InletV.F*trays(i).InletV.h- trays(i).OutletL.F*trays(i).OutletL.h - trays(i).OutletV.F*trays(i).OutletV.h + Q ); |
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205 | |
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206 | switch LiquidFlow |
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207 | case "on": |
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208 | switch LiquidFlowModel |
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209 | case "default": |
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210 | "Francis Equation" |
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211 | trays(i).OutletL.F*trays(i).vL = 1.84*'1/s'*lw*((trays(i).Level-(beta*hw))/(beta))^2; |
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212 | |
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213 | case "Wang_Fl": |
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214 | trays(i).OutletL.F*trays(i).vL = 1.84*'m^0.5/s'*lw*((trays(i).Level-(beta*hw))/(beta))^1.5; |
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215 | |
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216 | case "Olsen": |
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217 | trays(i).OutletL.F / 'mol/s'= lw*Np*trays(i).rhoL/sum(Mw*trays(i).OutletV.z)/(0.665*fw)^1.5 * ((trays(i).ML*sum(Mw*trays(i).OutletL.z)/trays(i).rhoL/Ap)-hw)^1.5 * 'm^0.5/mol'; |
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218 | |
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219 | case "Feehery_Fl": |
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220 | trays(i).OutletL.F = lw*trays(i).rhoL/sum(Mw*trays(i).OutletL.z) * ((trays(i).Level-hw)/750/'mm')^1.5 * 'm^2/s'; |
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221 | |
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222 | case "Roffel_Fl": |
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223 | trays(i).OutletL.F = 2/3*sqrt(2*g)*trays(i).rhoL/sum(Mw*trays(i).OutletL.z)*lw*(2*trays(i).btemp-1)*(trays(i).ML*sum(Mw*trays(i).OutletL.z)/(Ap*1.3)/trays(i).rhoL/(2*trays(i).btemp-1))^1.5; |
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224 | end |
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225 | when trays(i).Level < (beta *hw) switchto "off"; |
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226 | |
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227 | case "off": |
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228 | "Low level" |
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229 | trays(i).OutletL.F = 0 * 'mol/h'; |
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230 | when trays(i).Level > (beta * hw) + 1e-6*'m' switchto "on"; |
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231 | end |
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232 | |
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233 | trays(i).btemp = 1 - 0.3593/'Pa^0.0888545'*abs(trays(i).OutletV.F*sum(Mw*trays(i).OutletV.z)/(Ap*1.3)/sqrt(trays(i).rhoV))^0.177709; #/'(kg/m)^0.0888545/s^0.177709'; |
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234 | |
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235 | switch VapourFlow |
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236 | case "on": |
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237 | switch VapourFlowModel |
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238 | case "Reepmeyer": |
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239 | trays(i).InletV.F*trays(i).vV = sqrt((trays(i).InletV.P - trays(i).OutletV.P)/(trays(i).rhoV*alfa))*Ah; |
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240 | |
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241 | case "Feehery_Fv": |
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242 | trays(i).InletV.F = trays(i).rhoV/Ap/w/sum(Mw*trays(i).OutletV.z) * sqrt(((trays(i).InletV.P - trays(i).OutletV.P)-(trays(i).rhoV*g*trays(i).ML*trays(i).vL/Ap))/trays(i).rhoV); |
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243 | |
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244 | case "Roffel_Fv": |
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245 | trays(i).InletV.F^1.08 * 0.0013 * 'kg/m/mol^1.08/s^0.92*1e5' = (trays(i).InletV.P - trays(i).OutletV.P)*1e5 - (beta*sum(trays(i).M*Mw)/(Ap*1.3)*g*1e5) * (trays(i).rhoV*Ah/sum(Mw*trays(i).OutletV.z))^1.08 * 'm^1.08/mol^1.08'; |
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246 | |
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247 | case "Klingberg": |
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248 | trays(i).InletV.F * trays(i).vV = Ap * sqrt(((trays(i).InletV.P - trays(i).OutletV.P)-trays(i).rhoL*g*trays(i).Level)/trays(i).rhoV); |
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249 | |
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250 | case "Wang_Fv": |
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251 | trays(i).InletV.F * trays(i).vV = Ap * sqrt(((trays(i).InletV.P - trays(i).OutletV.P)-trays(i).rhoL*g*trays(i).Level)/trays(i).rhoV*alfa); |
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252 | |
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253 | case "Elgue": |
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254 | trays(i).InletV.F = sqrt((trays(i).InletV.P - trays(i).OutletV.P)/btray); |
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255 | end |
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256 | when trays(i).InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
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257 | |
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258 | case "off": |
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259 | trays(i).InletV.F = 0 * 'mol/s'; |
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260 | when trays(i).InletV.P > trays(i).OutletV.P + trays(i).Level*g*trays(i).rhoL + 1e-1 * 'atm' switchto "on"; |
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261 | end |
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262 | |
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263 | end |
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264 | |
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265 | INITIAL |
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266 | |
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267 | for i in 1:NumberOfTrays do |
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268 | |
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269 | "The initial temperature of the trays" |
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270 | trays(i).OutletL.T = TopTemperature+(TbottomTemperature-TopTemperature)*((i-1)/(NumberOfTrays-1)); |
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271 | |
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272 | "The initial Level of the trays" |
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273 | trays(i).Level = LevelFraction*hw; |
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274 | |
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275 | end |
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276 | |
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277 | for i in 1:NComp-1 do |
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278 | |
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279 | for j in 1:NumberOfTrays do |
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280 | |
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281 | "The initial composition of the trays" |
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282 | trays(j).OutletL.z(i) = TopComposition(i) +(BottomComposition(i)-TopComposition(i) )*((j-1)/(NumberOfTrays-1)); |
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283 | |
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284 | end |
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285 | |
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286 | end |
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287 | |
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288 | end |
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289 | |
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290 | #*---------------------------------------------------------------------- |
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291 | * Model of a distillation column containing: |
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292 | * - NumberOfTrays like tray; |
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293 | * - a kettle reboiler; |
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294 | * - dymamic condenser; |
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295 | * - a splitter which separate reflux and distillate; |
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296 | * - a pump in reflux stream; |
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297 | *--------------------------------------------------------------------- |
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298 | Model Distillation_kettle_condTeste |
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299 | ATTRIBUTES |
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300 | Pallete = true; |
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301 | Icon = "icon/DistillationKettleCond"; |
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302 | Brief = "Model of a distillation column with dynamic condenser and dynamic reboiler."; |
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303 | Info = |
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304 | "== Specify == |
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305 | * the feed stream of each tray (Inlet); |
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306 | * the Murphree eficiency for each tray Emv; |
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307 | * the pump pressure difference; |
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308 | * the heat supllied in reboiler and condenser; |
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309 | * the condenser vapor outlet flow (OutletV.F); |
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310 | * the reboiler liquid outlet flow (OutletL.F); |
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311 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
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312 | |
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313 | == Initial Conditions == |
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314 | * the trays temperature (OutletL.T); |
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315 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
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316 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
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317 | |
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318 | * the condenser temperature (OutletL.T); |
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319 | * the condenser liquid level (Level); |
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320 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
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321 | |
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322 | * the reboiler temperature (OutletL.T); |
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323 | * the reboiler liquid level (Level); |
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324 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
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325 | "; |
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326 | |
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327 | PARAMETERS |
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328 | outer PP as Plugin (Brief = "External Physical Properties", Type="PP"); |
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329 | outer NComp as Integer; |
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330 | NumberOfTrays as Integer (Brief="Number of trays", Default=2); |
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331 | topdown as Integer (Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
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332 | top as Integer (Brief="Number of top tray"); |
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333 | bot as Integer (Brief="Number of bottom tray"); |
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334 | VapourFlow as Switcher (Valid = ["on", "off"], Default = "on"); |
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335 | |
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336 | SET |
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337 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
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338 | bot = NumberOfTrays/top; |
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339 | |
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340 | VARIABLES |
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341 | trays(NumberOfTrays) as trayTeste; |
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342 | cond as condenser; |
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343 | reb as reboiler; |
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344 | sptop as splitter; |
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345 | pump1 as pump; |
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346 | alfaTopo as Real; |
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347 | |
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348 | EQUATIONS |
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349 | |
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350 | switch VapourFlow |
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351 | case "on": |
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352 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
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353 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
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354 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
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355 | |
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356 | case "off": |
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357 | cond.InletV.F = 0 * 'mol/s'; |
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358 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
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359 | end |
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360 | |
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361 | CONNECTIONS |
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362 | #vapor |
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363 | reb.OutletV to trays(bot).InletV; |
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364 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
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365 | trays(top).OutletV to cond.InletV; |
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366 | |
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367 | #liquid |
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368 | cond.OutletL to sptop.Inlet; |
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369 | sptop.Outlet2 to pump1.Inlet; |
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370 | pump1.Outlet to trays(top).InletL; |
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371 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
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372 | trays(bot).OutletL to reb.InletL; |
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373 | |
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374 | end |
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375 | |
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376 | |
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377 | #* ------------------------------------------------------------------- |
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378 | * Distillation Column model with: |
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379 | * |
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380 | * - NumberOfTrays like tray; |
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381 | * - a vessel in the bottom of column; |
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382 | * - a splitter who separate the bottom product and the stream to reboiler; |
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383 | * - steady state reboiler (thermosyphon); |
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384 | * - a steady state condenser with subcooling; |
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385 | * - a vessel drum (layed cilinder); |
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386 | * - a splitter which separate reflux and distillate; |
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387 | * - a pump in reflux stream. |
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388 | * |
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389 | * ------------------------------------------------------------------ |
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390 | Model Distillation_thermosyphon_subcoolingTeste |
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391 | ATTRIBUTES |
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392 | Pallete = true; |
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393 | Icon = "icon/DistillationThermosyphonSubcooling"; |
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394 | Brief = "Model of a distillation column with steady condenser and steady reboiler."; |
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395 | Info = |
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396 | "== Specify == |
---|
397 | * the feed stream of each tray (Inlet); |
---|
398 | * the Murphree eficiency for each tray Emv; |
---|
399 | * the pump head; |
---|
400 | * the condenser pressure drop; |
---|
401 | * the heat supllied in top and bottom tanks; |
---|
402 | * the heat supllied in condenser and reboiler; |
---|
403 | * the Outlet1 flow in the bottom splitter (spbottom.Outlet1.F) that corresponds to the bottom product; |
---|
404 | * both top splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
405 | |
---|
406 | == Initial Conditions == |
---|
407 | * the trays temperature (OutletL.T); |
---|
408 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
409 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
410 | |
---|
411 | * the top tank temperature (OutletL.T); |
---|
412 | * the top tank liquid level (Level); |
---|
413 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
414 | |
---|
415 | * the bottom tank temperature (OutletL.T); |
---|
416 | * the bottom tank liquid level (Level); |
---|
417 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
418 | "; |
---|
419 | |
---|
420 | PARAMETERS |
---|
421 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
422 | outer NComp as Integer; |
---|
423 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
424 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
425 | top as Integer(Brief="Number of top tray"); |
---|
426 | bot as Integer(Brief="Number of bottom tray"); |
---|
427 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
428 | |
---|
429 | SET |
---|
430 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
431 | bot = NumberOfTrays/top; |
---|
432 | |
---|
433 | VARIABLES |
---|
434 | trays(NumberOfTrays) as trayTeste; |
---|
435 | cond as condenserSteady; |
---|
436 | reb as reboilerSteady; |
---|
437 | tbottom as tank; |
---|
438 | ttop as tank_cylindrical; |
---|
439 | spbottom as splitter; |
---|
440 | sptop as splitter; |
---|
441 | pump1 as pump; |
---|
442 | alfaTopo as Real; |
---|
443 | |
---|
444 | EQUATIONS |
---|
445 | switch VapourFlow |
---|
446 | case "on": |
---|
447 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
448 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
449 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
450 | |
---|
451 | case "off": |
---|
452 | cond.InletV.F = 0 * 'mol/s'; |
---|
453 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
454 | end |
---|
455 | |
---|
456 | CONNECTIONS |
---|
457 | #vapor |
---|
458 | reb.OutletV to trays(bot).InletV; |
---|
459 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
460 | trays(top).OutletV to cond.InletV; |
---|
461 | |
---|
462 | #liquid |
---|
463 | cond.OutletL to ttop.Inlet; |
---|
464 | ttop.Outlet to sptop.Inlet; |
---|
465 | sptop.Outlet2 to pump1.Inlet; |
---|
466 | pump1.Outlet to trays(top).InletL; |
---|
467 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
468 | trays(bot).OutletL to tbottom.Inlet; |
---|
469 | tbottom.Outlet to spbottom.Inlet; |
---|
470 | spbottom.Outlet2 to reb.InletL; |
---|
471 | end |
---|
472 | |
---|
473 | |
---|
474 | #* ------------------------------------------------------------------- |
---|
475 | * Distillation Column model with: |
---|
476 | * |
---|
477 | * - NumberOfTrays like tray; |
---|
478 | * - a vessel in the bottom of column; |
---|
479 | * - a splitter who separate the bottom product and the stream to reboiler; |
---|
480 | * - steady state reboiler (thermosyphon); |
---|
481 | * - a dynamic condenser without subcooling; |
---|
482 | * - a splitter which separate reflux and distillate; |
---|
483 | * - a pump in reflux stream. |
---|
484 | * |
---|
485 | * ------------------------------------------------------------------* |
---|
486 | Model Distillation_thermosyphon_condTeste |
---|
487 | ATTRIBUTES |
---|
488 | Pallete = true; |
---|
489 | Icon = "icon/DistillationThermosyphonCond"; |
---|
490 | Brief = "Model of a distillation column with dynamic condenser and steady reboiler."; |
---|
491 | Info = |
---|
492 | "== Specify == |
---|
493 | * the feed stream of each tray (Inlet); |
---|
494 | * the Murphree eficiency for each tray Emv; |
---|
495 | * the pump head; |
---|
496 | * the condenser vapor outlet flow (OutletV.F); |
---|
497 | * the heat supllied in bottom tank; |
---|
498 | * the heat supllied in condenser and reboiler; |
---|
499 | * the Outlet1 flow in the bottom splitter (spbottom.Outlet1.F) that corresponds to the bottom product; |
---|
500 | |
---|
501 | == Initial Conditions == |
---|
502 | * the trays temperature (OutletL.T); |
---|
503 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
504 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
505 | |
---|
506 | * the condenser temperature (OutletL.T); |
---|
507 | * the condenser liquid level (Level); |
---|
508 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
509 | |
---|
510 | * the bottom tank temperature (OutletL.T); |
---|
511 | * the bottom tank liquid level (Level); |
---|
512 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
513 | "; |
---|
514 | |
---|
515 | PARAMETERS |
---|
516 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
517 | outer NComp as Integer; |
---|
518 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
519 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
520 | top as Integer(Brief="Number of top tray"); |
---|
521 | bot as Integer(Brief="Number of bottom tray"); |
---|
522 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
523 | |
---|
524 | SET |
---|
525 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
526 | bot = NumberOfTrays/top; |
---|
527 | |
---|
528 | VARIABLES |
---|
529 | trays(NumberOfTrays) as trayTeste; |
---|
530 | cond as condenser; |
---|
531 | reb as reboilerSteady; |
---|
532 | tbottom as tank; |
---|
533 | spbottom as splitter; |
---|
534 | sptop as splitter; |
---|
535 | pump1 as pump; |
---|
536 | alfaTopo as Real; |
---|
537 | |
---|
538 | EQUATIONS |
---|
539 | switch VapourFlow |
---|
540 | case "on": |
---|
541 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
542 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
543 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
544 | |
---|
545 | case "off": |
---|
546 | cond.InletV.F = 0 * 'mol/s'; |
---|
547 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
548 | end |
---|
549 | |
---|
550 | CONNECTIONS |
---|
551 | #vapor |
---|
552 | reb.OutletV to trays(bot).InletV; |
---|
553 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
554 | trays(top).OutletV to cond.InletV; |
---|
555 | |
---|
556 | #liquid |
---|
557 | cond.OutletL to sptop.Inlet; |
---|
558 | sptop.Outlet2 to pump1.Inlet; |
---|
559 | pump1.Outlet to trays(top).InletL; |
---|
560 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
561 | trays(bot).OutletL to tbottom.Inlet; |
---|
562 | tbottom.Outlet to spbottom.Inlet; |
---|
563 | spbottom.Outlet2 to reb.InletL; |
---|
564 | end |
---|
565 | |
---|
566 | #* ------------------------------------------------------------------- |
---|
567 | * Distillation Column model with: |
---|
568 | * |
---|
569 | * - NumberOfTrays like tray; |
---|
570 | * - a kettle reboiler; |
---|
571 | * - a steady state condenser with subcooling; |
---|
572 | * - a vessel drum (layed cilinder); |
---|
573 | * - a splitter which separate reflux and distillate; |
---|
574 | * - a pump in reflux stream. |
---|
575 | * |
---|
576 | * ------------------------------------------------------------------* |
---|
577 | Model Distillation_kettle_subcoolingTeste |
---|
578 | ATTRIBUTES |
---|
579 | Pallete = true; |
---|
580 | Icon = "icon/DistillationKettleSubcooling"; |
---|
581 | Brief = "Model of a distillation column with steady condenser and dynamic reboiler."; |
---|
582 | Info = |
---|
583 | "== Specify == |
---|
584 | * the feed stream of each tray (Inlet); |
---|
585 | * the Murphree eficiency for each tray (Emv); |
---|
586 | * the pump pressure difference; |
---|
587 | * the heat supllied in reboiler and condenser; |
---|
588 | * the heat supllied in the top tank; |
---|
589 | * the condenser pressure drop; |
---|
590 | * the reboiler liquid outlet flow (OutletL.F); |
---|
591 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
592 | |
---|
593 | == Initial Conditions == |
---|
594 | * the trays temperature (OutletL.T); |
---|
595 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
596 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
597 | |
---|
598 | * the top tank temperature (OutletL.T); |
---|
599 | * the top tank liquid level (Level); |
---|
600 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
601 | |
---|
602 | * the reboiler temperature (OutletL.T); |
---|
603 | * the reboiler liquid level (Level); |
---|
604 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
605 | "; |
---|
606 | |
---|
607 | PARAMETERS |
---|
608 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
609 | outer NComp as Integer; |
---|
610 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
611 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
612 | top as Integer(Brief="Number of top tray"); |
---|
613 | bot as Integer(Brief="Number of bottom tray"); |
---|
614 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
615 | |
---|
616 | SET |
---|
617 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
618 | bot = NumberOfTrays/top; |
---|
619 | |
---|
620 | VARIABLES |
---|
621 | trays(NumberOfTrays) as trayTeste; |
---|
622 | cond as condenserSteady; |
---|
623 | reb as reboiler; |
---|
624 | ttop as tank_cylindrical; |
---|
625 | sptop as splitter; |
---|
626 | pump1 as pump; |
---|
627 | alfaTopo as Real; |
---|
628 | |
---|
629 | EQUATIONS |
---|
630 | switch VapourFlow |
---|
631 | case "on": |
---|
632 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
633 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
634 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
635 | |
---|
636 | case "off": |
---|
637 | cond.InletV.F = 0 * 'mol/s'; |
---|
638 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
639 | end |
---|
640 | |
---|
641 | CONNECTIONS |
---|
642 | #vapor |
---|
643 | reb.OutletV to trays(bot).InletV; |
---|
644 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
645 | trays(top).OutletV to cond.InletV; |
---|
646 | |
---|
647 | #liquid |
---|
648 | cond.OutletL to ttop.Inlet; |
---|
649 | ttop.Outlet to sptop.Inlet; |
---|
650 | sptop.Outlet2 to pump1.Inlet; |
---|
651 | pump1.Outlet to trays(top).InletL; |
---|
652 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
653 | trays(bot).OutletL to reb.InletL; |
---|
654 | end |
---|
655 | |
---|
656 | |
---|
657 | #*---------------------------------------------------------------------- |
---|
658 | * Model of a rectifier containing: |
---|
659 | * - NumberOfTrays like tray; |
---|
660 | * - dymamic condenser without subcooling; |
---|
661 | * - a splitter which separate reflux and distillate; |
---|
662 | * - a pump in reflux stream; |
---|
663 | *---------------------------------------------------------------------* |
---|
664 | Model RectifierTeste |
---|
665 | ATTRIBUTES |
---|
666 | Pallete = true; |
---|
667 | Icon = "icon/RefluxedCond"; |
---|
668 | Brief = "Model of a rectifier column with dynamic condenser."; |
---|
669 | Info = |
---|
670 | "== Specify == |
---|
671 | * the feed stream of each tray (Inlet); |
---|
672 | * the Murphree eficiency for each tray Emv; |
---|
673 | * the InletV stream of the bottom tray unless its flow; |
---|
674 | * the pump pressure difference; |
---|
675 | * the heat supllied in the condenser; |
---|
676 | * the condenser vapor outlet flow (OutletV.F); |
---|
677 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
678 | |
---|
679 | == Initial Conditions == |
---|
680 | * the trays temperature (OutletL.T); |
---|
681 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
682 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
683 | |
---|
684 | * the condenser temperature (OutletL.T); |
---|
685 | * the condenser liquid level (Level); |
---|
686 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
687 | "; |
---|
688 | |
---|
689 | PARAMETERS |
---|
690 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
691 | outer NComp as Integer; |
---|
692 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
693 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
694 | top as Integer(Brief="Number of top tray"); |
---|
695 | bot as Integer(Brief="Number of bottom tray"); |
---|
696 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
697 | |
---|
698 | SET |
---|
699 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
700 | bot = NumberOfTrays/top; |
---|
701 | |
---|
702 | VARIABLES |
---|
703 | trays(NumberOfTrays) as trayTeste; |
---|
704 | cond as condenser; |
---|
705 | sptop as splitter; |
---|
706 | pump1 as pump; |
---|
707 | alfaTopo as Real; |
---|
708 | |
---|
709 | EQUATIONS |
---|
710 | switch VapourFlow |
---|
711 | case "on": |
---|
712 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
713 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
714 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
715 | |
---|
716 | case "off": |
---|
717 | cond.InletV.F = 0 * 'mol/s'; |
---|
718 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
719 | end |
---|
720 | |
---|
721 | CONNECTIONS |
---|
722 | #vapor |
---|
723 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
724 | trays(top).OutletV to cond.InletV; |
---|
725 | |
---|
726 | #liquid |
---|
727 | cond.OutletL to sptop.Inlet; |
---|
728 | sptop.Outlet2 to pump1.Inlet; |
---|
729 | pump1.Outlet to trays(top).InletL; |
---|
730 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
731 | end |
---|
732 | |
---|
733 | |
---|
734 | #* ------------------------------------------------------------------- |
---|
735 | * Rectifier Column with: |
---|
736 | * |
---|
737 | * - NumberOfTrays like tray; |
---|
738 | * - a steady state condenser with subcooling; |
---|
739 | * - a vessel drum (layed cilinder); |
---|
740 | * - a splitter which separate reflux and distillate; |
---|
741 | * - a pump in reflux stream. |
---|
742 | * |
---|
743 | * ------------------------------------------------------------------* |
---|
744 | Model Rectifier_subcoolingTeste |
---|
745 | ATTRIBUTES |
---|
746 | Pallete = true; |
---|
747 | Icon = "icon/RefluxedSubcooling"; |
---|
748 | Brief = "Model of a rectifier column with steady condenser."; |
---|
749 | Info = |
---|
750 | "== Specify == |
---|
751 | * the feed stream of each tray (Inlet); |
---|
752 | * the Murphree eficiency for each tray Emv; |
---|
753 | * the InletV stream of the bottom tray unless its flow; |
---|
754 | * the pump head; |
---|
755 | * the condenser pressure drop; |
---|
756 | * the heat supllied in the top tank; |
---|
757 | * the heat supllied in condenser; |
---|
758 | * both top splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
759 | |
---|
760 | == Initial Conditions == |
---|
761 | * the trays temperature (OutletL.T); |
---|
762 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
763 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
764 | |
---|
765 | * the top tank temperature (OutletL.T); |
---|
766 | * the top tank liquid level (Level); |
---|
767 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
768 | "; |
---|
769 | |
---|
770 | PARAMETERS |
---|
771 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
772 | outer NComp as Integer; |
---|
773 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
774 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
775 | top as Integer(Brief="Number of top tray"); |
---|
776 | bot as Integer(Brief="Number of bottom tray"); |
---|
777 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
778 | |
---|
779 | SET |
---|
780 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
781 | bot = NumberOfTrays/top; |
---|
782 | |
---|
783 | VARIABLES |
---|
784 | trays(NumberOfTrays) as trayTeste; |
---|
785 | cond as condenserSteady; |
---|
786 | ttop as tank_cylindrical; |
---|
787 | sptop as splitter; |
---|
788 | pump1 as pump; |
---|
789 | alfaTopo as Real; |
---|
790 | |
---|
791 | EQUATIONS |
---|
792 | switch VapourFlow |
---|
793 | case "on": |
---|
794 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
795 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
796 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
797 | |
---|
798 | case "off": |
---|
799 | cond.InletV.F = 0 * 'mol/s'; |
---|
800 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
801 | end |
---|
802 | |
---|
803 | CONNECTIONS |
---|
804 | #vapor |
---|
805 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
806 | trays(top).OutletV to cond.InletV; |
---|
807 | |
---|
808 | #liquid |
---|
809 | cond.OutletL to ttop.Inlet; |
---|
810 | ttop.Outlet to sptop.Inlet; |
---|
811 | sptop.Outlet2 to pump1.Inlet; |
---|
812 | pump1.Outlet to trays(top).InletL; |
---|
813 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
814 | end |
---|
815 | |
---|
816 | |
---|
817 | #*---------------------------------------------------------------------- |
---|
818 | * Model of a Refluxed Stripping column containing: |
---|
819 | * - NumberOfTrays like tray; |
---|
820 | * - dymamic condenser without subcooling; |
---|
821 | * - a splitter which separate reflux and distillate; |
---|
822 | * - a pump in reflux stream; |
---|
823 | *---------------------------------------------------------------------* |
---|
824 | Model Refluxed_StrippingTeste |
---|
825 | ATTRIBUTES |
---|
826 | Pallete = true; |
---|
827 | Icon = "icon/RefluxedCond"; |
---|
828 | Brief = "Model of a refluxed stripping column with dynamic condenser."; |
---|
829 | Info = |
---|
830 | "== Specify == |
---|
831 | * the feed stream of each tray (Inlet); |
---|
832 | * the Murphree eficiency for each tray Emv; |
---|
833 | * the InletV stream of the bottom tray unless its flow; |
---|
834 | * the pump pressure difference; |
---|
835 | * the heat supllied in the condenser; |
---|
836 | * the condenser vapor outlet flow (OutletV.F); |
---|
837 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
838 | |
---|
839 | == Initial Conditions == |
---|
840 | * the trays temperature (OutletL.T); |
---|
841 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
842 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
843 | |
---|
844 | * the condenser temperature (OutletL.T); |
---|
845 | * the condenser liquid level (Level); |
---|
846 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
847 | "; |
---|
848 | |
---|
849 | PARAMETERS |
---|
850 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
851 | outer NComp as Integer; |
---|
852 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
853 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
854 | top as Integer(Brief="Number of top tray"); |
---|
855 | bot as Integer(Brief="Number of bottom tray"); |
---|
856 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
857 | |
---|
858 | SET |
---|
859 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
860 | bot = NumberOfTrays/top; |
---|
861 | |
---|
862 | VARIABLES |
---|
863 | trays(NumberOfTrays) as trayTeste; |
---|
864 | cond as condenser; |
---|
865 | sptop as splitter; |
---|
866 | pump1 as pump; |
---|
867 | alfaTopo as Real; |
---|
868 | |
---|
869 | EQUATIONS |
---|
870 | switch VapourFlow |
---|
871 | case "on": |
---|
872 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
873 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
874 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
875 | |
---|
876 | case "off": |
---|
877 | cond.InletV.F = 0 * 'mol/s'; |
---|
878 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
879 | end |
---|
880 | |
---|
881 | CONNECTIONS |
---|
882 | #vapor |
---|
883 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
884 | trays(top).OutletV to cond.InletV; |
---|
885 | |
---|
886 | #liquid |
---|
887 | cond.OutletL to sptop.Inlet; |
---|
888 | sptop.Outlet2 to pump1.Inlet; |
---|
889 | pump1.Outlet to trays(top).InletL; |
---|
890 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
891 | end |
---|
892 | |
---|
893 | |
---|
894 | #* ------------------------------------------------------------------- |
---|
895 | * Refluxed Stripping Column with: |
---|
896 | * |
---|
897 | * - NumberOfTrays like tray; |
---|
898 | * - a steady state condenser (with subcooling); |
---|
899 | * - a vessel drum (layed cilinder); |
---|
900 | * - a splitter which separate reflux and distillate; |
---|
901 | * - a pump in reflux stream. |
---|
902 | * |
---|
903 | * ------------------------------------------------------------------* |
---|
904 | Model Refluxed_Stripping_subcoolingTeste |
---|
905 | ATTRIBUTES |
---|
906 | Pallete = true; |
---|
907 | Icon = "icon/RefluxedSubcooling"; |
---|
908 | Brief = "Model of a refluxed stripping column with steady condenser."; |
---|
909 | Info = |
---|
910 | "== Specify == |
---|
911 | * the feed stream of each tray (Inlet); |
---|
912 | * the Murphree eficiency for each tray Emv; |
---|
913 | * the InletV stream of the bottom tray unless its flow; |
---|
914 | * the pump head; |
---|
915 | * the condenser pressure drop; |
---|
916 | * the heat supllied in the top tank; |
---|
917 | * the heat supllied in condenser; |
---|
918 | * both top splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
919 | |
---|
920 | == Initial Conditions == |
---|
921 | * the trays temperature (OutletL.T); |
---|
922 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
923 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
924 | |
---|
925 | * the top tank temperature (OutletL.T); |
---|
926 | * the top tank liquid level (Level); |
---|
927 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
928 | "; |
---|
929 | |
---|
930 | PARAMETERS |
---|
931 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
932 | outer NComp as Integer; |
---|
933 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
934 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
935 | top as Integer(Brief="Number of top tray"); |
---|
936 | bot as Integer(Brief="Number of bottom tray"); |
---|
937 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
938 | |
---|
939 | SET |
---|
940 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
941 | bot = NumberOfTrays/top; |
---|
942 | |
---|
943 | VARIABLES |
---|
944 | trays(NumberOfTrays) as trayTeste; |
---|
945 | cond as condenserSteady; |
---|
946 | ttop as tank_cylindrical; |
---|
947 | sptop as splitter; |
---|
948 | pump1 as pump; |
---|
949 | alfaTopo as Real; |
---|
950 | |
---|
951 | EQUATIONS |
---|
952 | switch VapourFlow |
---|
953 | case "on": |
---|
954 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
955 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
956 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
957 | |
---|
958 | case "off": |
---|
959 | cond.InletV.F = 0 * 'mol/s'; |
---|
960 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
961 | end |
---|
962 | |
---|
963 | CONNECTIONS |
---|
964 | #vapor |
---|
965 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
966 | trays(top).OutletV to cond.InletV; |
---|
967 | |
---|
968 | #liquid |
---|
969 | cond.OutletL to ttop.Inlet; |
---|
970 | ttop.Outlet to sptop.Inlet; |
---|
971 | sptop.Outlet2 to pump1.Inlet; |
---|
972 | pump1.Outlet to trays(top).InletL; |
---|
973 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
974 | end |
---|
975 | |
---|
976 | |
---|
977 | #*---------------------------------------------------------------------- |
---|
978 | * Model of a Refluxed Absorption column containing: |
---|
979 | * - NumberOfTrays like tray; |
---|
980 | * - dymamic condenser without subcooling; |
---|
981 | * - a splitter which separate reflux and distillate; |
---|
982 | * - a pump in reflux stream; |
---|
983 | *---------------------------------------------------------------------* |
---|
984 | Model Refluxed_AbsorptionTeste |
---|
985 | ATTRIBUTES |
---|
986 | Pallete = true; |
---|
987 | Icon = "icon/RefluxedCond"; |
---|
988 | Brief = "Model of a refluxed absorption column with dynamic condenser."; |
---|
989 | Info = |
---|
990 | "== Specify == |
---|
991 | * the feed stream of each tray (Inlet); |
---|
992 | * the Murphree eficiency for each tray Emv; |
---|
993 | * the InletV stream of the bottom tray unless its flow; |
---|
994 | * the pump pressure difference; |
---|
995 | * the heat supllied in the condenser; |
---|
996 | * the condenser vapor outlet flow (OutletV.F); |
---|
997 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
998 | |
---|
999 | == Initial Conditions == |
---|
1000 | * the trays temperature (OutletL.T); |
---|
1001 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
1002 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
1003 | |
---|
1004 | * the condenser temperature (OutletL.T); |
---|
1005 | * the condenser liquid level (Level); |
---|
1006 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
1007 | "; |
---|
1008 | |
---|
1009 | PARAMETERS |
---|
1010 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
1011 | outer NComp as Integer; |
---|
1012 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
1013 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
1014 | top as Integer(Brief="Number of top tray"); |
---|
1015 | bot as Integer(Brief="Number of bottom tray"); |
---|
1016 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
1017 | |
---|
1018 | SET |
---|
1019 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
1020 | bot = NumberOfTrays/top; |
---|
1021 | |
---|
1022 | VARIABLES |
---|
1023 | trays(NumberOfTrays) as trayTeste; |
---|
1024 | cond as condenser; |
---|
1025 | sptop as splitter; |
---|
1026 | pump1 as pump; |
---|
1027 | alfaTopo as Real; |
---|
1028 | |
---|
1029 | EQUATIONS |
---|
1030 | switch VapourFlow |
---|
1031 | case "on": |
---|
1032 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
1033 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
1034 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
1035 | |
---|
1036 | case "off": |
---|
1037 | cond.InletV.F = 0 * 'mol/s'; |
---|
1038 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
1039 | end |
---|
1040 | |
---|
1041 | CONNECTIONS |
---|
1042 | #vapor |
---|
1043 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
1044 | trays(top).OutletV to cond.InletV; |
---|
1045 | |
---|
1046 | #liquid |
---|
1047 | cond.OutletL to cond.InletV; |
---|
1048 | cond.OutletL to sptop.Inlet; |
---|
1049 | sptop.Outlet2 to pump1.Inlet; |
---|
1050 | pump1.Outlet to trays(top).InletL; |
---|
1051 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
1052 | end |
---|
1053 | |
---|
1054 | |
---|
1055 | #* ------------------------------------------------------------------- |
---|
1056 | * Refluxed Absorption Column with: |
---|
1057 | * |
---|
1058 | * - NumberOfTrays like tray; |
---|
1059 | * - a steady state condenser (with subcooling); |
---|
1060 | * - a vessel drum (layed cilinder); |
---|
1061 | * - a splitter which separate reflux and distillate; |
---|
1062 | * - a pump in reflux stream. |
---|
1063 | * |
---|
1064 | * ------------------------------------------------------------------* |
---|
1065 | Model Refluxed_Absorption_subcoolingTeste |
---|
1066 | ATTRIBUTES |
---|
1067 | Pallete = true; |
---|
1068 | Icon = "icon/RefluxedSubcooling"; |
---|
1069 | Brief = "Model of a refluxed absorption column with steady condenser."; |
---|
1070 | Info = |
---|
1071 | "== Specify == |
---|
1072 | * the feed stream of each tray (Inlet); |
---|
1073 | * the Murphree eficiency for each tray Emv; |
---|
1074 | * the InletV stream of the bottom tray unless its flow; |
---|
1075 | * the pump head; |
---|
1076 | * the condenser pressure drop; |
---|
1077 | * the heat supllied in the top tank; |
---|
1078 | * the heat supllied in condenser; |
---|
1079 | * both top splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
1080 | |
---|
1081 | == Initial Conditions == |
---|
1082 | * the trays temperature (OutletL.T); |
---|
1083 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
1084 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
1085 | |
---|
1086 | * the top tank temperature (OutletL.T); |
---|
1087 | * the top tank liquid level (Level); |
---|
1088 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
1089 | "; |
---|
1090 | |
---|
1091 | PARAMETERS |
---|
1092 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
1093 | outer NComp as Integer; |
---|
1094 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
1095 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
1096 | top as Integer(Brief="Number of top tray"); |
---|
1097 | bot as Integer(Brief="Number of bottom tray"); |
---|
1098 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
1099 | |
---|
1100 | SET |
---|
1101 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
1102 | bot = NumberOfTrays/top; |
---|
1103 | |
---|
1104 | VARIABLES |
---|
1105 | trays(NumberOfTrays) as trayTeste; |
---|
1106 | cond as condenserSteady; |
---|
1107 | ttop as tank_cylindrical; |
---|
1108 | sptop as splitter; |
---|
1109 | pump1 as pump; |
---|
1110 | alfaTopo as Real; |
---|
1111 | |
---|
1112 | EQUATIONS |
---|
1113 | switch VapourFlow |
---|
1114 | case "on": |
---|
1115 | cond.InletV.F*trays(top).vV = alfaTopo * trays(top).Ah * sqrt(2*(trays(top).OutletV.P - |
---|
1116 | cond.OutletL.P + 1e-8 * 'atm') / (trays(top).alfa*trays(top).rhoV)); |
---|
1117 | when cond.InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
1118 | |
---|
1119 | case "off": |
---|
1120 | cond.InletV.F = 0 * 'mol/s'; |
---|
1121 | when trays(top).OutletV.P > cond.OutletL.P + 1e-1 * 'atm' switchto "on"; |
---|
1122 | end |
---|
1123 | |
---|
1124 | CONNECTIONS |
---|
1125 | #vapor |
---|
1126 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
1127 | trays(top).OutletV to cond.InletV; |
---|
1128 | |
---|
1129 | #liquid |
---|
1130 | cond.OutletL to ttop.Inlet; |
---|
1131 | ttop.Outlet to sptop.Inlet; |
---|
1132 | sptop.Outlet2 to pump1.Inlet; |
---|
1133 | pump1.Outlet to trays(top).InletL; |
---|
1134 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
1135 | end |
---|
1136 | |
---|
1137 | |
---|
1138 | #* ------------------------------------------------------------------- |
---|
1139 | * Reboiled Stripping Column model with: |
---|
1140 | * |
---|
1141 | * - NumberOfTrays like tray; |
---|
1142 | * - a kettle reboiler; |
---|
1143 | * |
---|
1144 | * ------------------------------------------------------------------* |
---|
1145 | Model Reboiled_Stripping_kettleTeste |
---|
1146 | ATTRIBUTES |
---|
1147 | Pallete = true; |
---|
1148 | Icon = "icon/ReboiledKettle"; |
---|
1149 | Brief = "Model of a reboiled stripping column with dynamic reboiler."; |
---|
1150 | Info = |
---|
1151 | "== Specify == |
---|
1152 | * the feed stream of each tray (Inlet); |
---|
1153 | * the Murphree eficiency for each tray Emv; |
---|
1154 | * the vapour flow leaving the top of the column; |
---|
1155 | * the InletL stream of the top tray; |
---|
1156 | * the heat supllied in the reboiler; |
---|
1157 | * the reboiler liquid outlet flow (OutletL.F); |
---|
1158 | |
---|
1159 | == Initial Conditions == |
---|
1160 | * the trays temperature (OutletL.T); |
---|
1161 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
1162 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
1163 | |
---|
1164 | * the reboiler temperature (OutletL.T); |
---|
1165 | * the reboiler liquid level (Level); |
---|
1166 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
1167 | "; |
---|
1168 | |
---|
1169 | PARAMETERS |
---|
1170 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
1171 | outer NComp as Integer; |
---|
1172 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
1173 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
1174 | top as Integer(Brief="Number of top tray"); |
---|
1175 | bot as Integer(Brief="Number of bottom tray"); |
---|
1176 | |
---|
1177 | SET |
---|
1178 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
1179 | bot = NumberOfTrays/top; |
---|
1180 | |
---|
1181 | VARIABLES |
---|
1182 | trays(NumberOfTrays) as trayTeste; |
---|
1183 | reb as reboiler; |
---|
1184 | |
---|
1185 | CONNECTIONS |
---|
1186 | #vapor |
---|
1187 | reb.OutletV to trays(bot).InletV; |
---|
1188 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
1189 | |
---|
1190 | #liquid |
---|
1191 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
1192 | trays(bot).OutletL to reb.InletL; |
---|
1193 | end |
---|
1194 | |
---|
1195 | |
---|
1196 | #* ------------------------------------------------------------------- |
---|
1197 | * Reboiled Stripping Column model with: |
---|
1198 | * |
---|
1199 | * - NumberOfTrays like tray; |
---|
1200 | * - a vessel in the bottom of column; |
---|
1201 | * - a splitter which separate the bottom product and the stream to reboiler; |
---|
1202 | * - steady state reboiler (thermosyphon); |
---|
1203 | * |
---|
1204 | * ------------------------------------------------------------------* |
---|
1205 | Model Reboiled_Stripping_thermosyphonTeste |
---|
1206 | ATTRIBUTES |
---|
1207 | Pallete = true; |
---|
1208 | Icon = "icon/ReboiledThermosyphon"; |
---|
1209 | Brief = "Model of a reboiled stripping column with steady reboiler."; |
---|
1210 | Info = |
---|
1211 | "== Specify == |
---|
1212 | * the feed stream of each tray (Inlet); |
---|
1213 | * the Murphree eficiency for each tray (Emv); |
---|
1214 | * the vapour flow leaving the top of the column; |
---|
1215 | * the InletL stream of the top tray; |
---|
1216 | * the heat supllied in bottom tank; |
---|
1217 | * the heat supllied in the reboiler; |
---|
1218 | * the Outlet1 flow in the bottom splitter (spbottom.Outlet1.F) that corresponds to the bottom product; |
---|
1219 | |
---|
1220 | == Initial Conditions == |
---|
1221 | * the trays temperature (OutletL.T); |
---|
1222 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
1223 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
1224 | |
---|
1225 | * the bottom tank temperature (OutletL.T); |
---|
1226 | * the bottom tank liquid level (Level); |
---|
1227 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
1228 | "; |
---|
1229 | |
---|
1230 | PARAMETERS |
---|
1231 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
1232 | outer NComp as Integer; |
---|
1233 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
1234 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
1235 | top as Integer(Brief="Number of top tray"); |
---|
1236 | bot as Integer(Brief="Number of bottom tray"); |
---|
1237 | |
---|
1238 | SET |
---|
1239 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
1240 | bot = NumberOfTrays/top; |
---|
1241 | |
---|
1242 | VARIABLES |
---|
1243 | trays(NumberOfTrays) as trayTeste; |
---|
1244 | reb as reboilerSteady; |
---|
1245 | spbottom as splitter; |
---|
1246 | tbottom as tank; |
---|
1247 | |
---|
1248 | CONNECTIONS |
---|
1249 | #vapor |
---|
1250 | reb.OutletV to trays(bot).InletV; |
---|
1251 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
1252 | |
---|
1253 | #liquid |
---|
1254 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
1255 | trays(bot).OutletL to tbottom.Inlet; |
---|
1256 | tbottom.Outlet to spbottom.Inlet; |
---|
1257 | spbottom.Outlet2 to reb.InletL; |
---|
1258 | end |
---|
1259 | |
---|
1260 | |
---|
1261 | #* ------------------------------------------------------------------- |
---|
1262 | * Reboiled Absorption Column model with: |
---|
1263 | * |
---|
1264 | * - NumberOfTrays like tray; |
---|
1265 | * - a kettle reboiler; |
---|
1266 | * |
---|
1267 | * ------------------------------------------------------------------* |
---|
1268 | Model Reboiled_Absorption_kettleTeste |
---|
1269 | ATTRIBUTES |
---|
1270 | Pallete = true; |
---|
1271 | Icon = "icon/ReboiledKettle"; |
---|
1272 | Brief = "Model of a reboiled absorption column with dynamic reboiler."; |
---|
1273 | Info = |
---|
1274 | "== Specify == |
---|
1275 | * the feed stream of each tray (Inlet); |
---|
1276 | * the Murphree eficiency for each tray Emv; |
---|
1277 | * the vapour flow leaving the top of the column; |
---|
1278 | * the InletL stream of the top tray; |
---|
1279 | * the heat supllied in the reboiler; |
---|
1280 | * the reboiler liquid outlet flow (OutletL.F); |
---|
1281 | |
---|
1282 | == Initial Conditions == |
---|
1283 | * the trays temperature (OutletL.T); |
---|
1284 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
1285 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
1286 | |
---|
1287 | * the reboiler temperature (OutletL.T); |
---|
1288 | * the reboiler liquid level (Level); |
---|
1289 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
1290 | "; |
---|
1291 | |
---|
1292 | PARAMETERS |
---|
1293 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
1294 | outer NComp as Integer; |
---|
1295 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
1296 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
1297 | top as Integer(Brief="Number of top tray"); |
---|
1298 | bot as Integer(Brief="Number of bottom tray"); |
---|
1299 | |
---|
1300 | SET |
---|
1301 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
1302 | bot = NumberOfTrays/top; |
---|
1303 | |
---|
1304 | VARIABLES |
---|
1305 | trays(NumberOfTrays) as trayTeste; |
---|
1306 | reb as reboiler; |
---|
1307 | |
---|
1308 | CONNECTIONS |
---|
1309 | #vapor |
---|
1310 | reb.OutletV to trays(bot).InletV; |
---|
1311 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
1312 | |
---|
1313 | #liquid |
---|
1314 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
1315 | trays(bot).OutletL to reb.InletL; |
---|
1316 | end |
---|
1317 | |
---|
1318 | |
---|
1319 | #* ------------------------------------------------------------------- |
---|
1320 | * Reboiled Absorption Column model with: |
---|
1321 | * |
---|
1322 | * - NumberOfTrays like tray; |
---|
1323 | * - a vessel in the bottom of column; |
---|
1324 | * - a splitter which separate the bottom product and the stream to reboiler; |
---|
1325 | * - steady state reboiler (thermosyphon); |
---|
1326 | * |
---|
1327 | * ------------------------------------------------------------------* |
---|
1328 | Model Reboiled_Absorption_thermosyphonTeste |
---|
1329 | ATTRIBUTES |
---|
1330 | Pallete = true; |
---|
1331 | Icon = "icon/ReboiledThermosyphon"; |
---|
1332 | Brief = "Model of a reboiled absorption column with steady reboiler."; |
---|
1333 | Info = |
---|
1334 | "== Specify == |
---|
1335 | * the feed stream of each tray (Inlet); |
---|
1336 | * the Murphree eficiency for each tray (Emv); |
---|
1337 | * the vapour flow leaving the top of the column; |
---|
1338 | * the InletL stream of the top tray; |
---|
1339 | * the heat supllied in bottom tank; |
---|
1340 | * the heat supllied in the reboiler; |
---|
1341 | * the Outlet1 flow in the bottom splitter (spbottom.Outlet1.F) that corresponds to the bottom product; |
---|
1342 | |
---|
1343 | == Initial Conditions == |
---|
1344 | * the trays temperature (OutletL.T); |
---|
1345 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
1346 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
1347 | |
---|
1348 | * the bottom tank temperature (OutletL.T); |
---|
1349 | * the bottom tank liquid level (Level); |
---|
1350 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
1351 | "; |
---|
1352 | |
---|
1353 | PARAMETERS |
---|
1354 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
1355 | outer NComp as Integer; |
---|
1356 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
1357 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
1358 | top as Integer(Brief="Number of top tray"); |
---|
1359 | bot as Integer(Brief="Number of bottom tray"); |
---|
1360 | |
---|
1361 | SET |
---|
1362 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
1363 | bot = NumberOfTrays/top; |
---|
1364 | |
---|
1365 | VARIABLES |
---|
1366 | trays(NumberOfTrays) as trayTeste; |
---|
1367 | reb as reboilerSteady; |
---|
1368 | spbottom as splitter; |
---|
1369 | tbottom as tank; |
---|
1370 | |
---|
1371 | CONNECTIONS |
---|
1372 | #vapor |
---|
1373 | reb.OutletV to trays(bot).InletV; |
---|
1374 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
1375 | |
---|
1376 | #liquid |
---|
1377 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
1378 | trays(bot).OutletL to tbottom.Inlet; |
---|
1379 | tbottom.Outlet to spbottom.Inlet; |
---|
1380 | spbottom.Outlet2 to reb.InletL; |
---|
1381 | end |
---|
1382 | |
---|
1383 | #* ------------------------------------------------------------------- |
---|
1384 | * Reactive Distillation Column |
---|
1385 | * |
---|
1386 | * ------------------------------------------------------------------* |
---|
1387 | Model ReactiveDistillationTeste |
---|
1388 | ATTRIBUTES |
---|
1389 | Pallete = true; |
---|
1390 | Icon = "icon/DistillationKettleCond"; |
---|
1391 | Brief = "Model of a reactive distillation column with dynamic condenser and reboiler."; |
---|
1392 | Info = |
---|
1393 | "== Specify == |
---|
1394 | * the reaction related variables for each tray, condenser and reboiler; |
---|
1395 | * the feed stream of each tray (Inlet); |
---|
1396 | * the Murphree eficiency for each tray Emv; |
---|
1397 | * the pump pressure difference; |
---|
1398 | * the heat supllied in reboiler and condenser; |
---|
1399 | * the condenser vapor outlet flow (OutletV.F); |
---|
1400 | * the reboiler liquid outlet flow (OutletL.F); |
---|
1401 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
1402 | |
---|
1403 | == Initial Conditions == |
---|
1404 | * the trays temperature (OutletL.T); |
---|
1405 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
---|
1406 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
---|
1407 | |
---|
1408 | * the condenser temperature (OutletL.T); |
---|
1409 | * the condenser liquid level (Level); |
---|
1410 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
1411 | |
---|
1412 | * the reboiler temperature (OutletL.T); |
---|
1413 | * the reboiler liquid level (Level); |
---|
1414 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
1415 | "; |
---|
1416 | |
---|
1417 | PARAMETERS |
---|
1418 | outer PP as Plugin(Type="PP"); |
---|
1419 | outer NComp as Integer; |
---|
1420 | NumberOfTrays as Integer(Brief="Number of trays", Default=2); |
---|
1421 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
1422 | top as Integer(Brief="Number of top tray"); |
---|
1423 | bot as Integer(Brief="Number of bottom tray"); |
---|
1424 | alfacond as Real; |
---|
1425 | |
---|
1426 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "off"); |
---|
1427 | |
---|
1428 | SET |
---|
1429 | top = (NumberOfTrays-1)*(1-topdown)/2+1; |
---|
1430 | bot = NumberOfTrays/top; |
---|
1431 | |
---|
1432 | VARIABLES |
---|
1433 | trays(NumberOfTrays) as trayReactTeste; |
---|
1434 | cond as condenserReact; |
---|
1435 | reb as reboilerReact; |
---|
1436 | sp as splitter; |
---|
1437 | p as pump; |
---|
1438 | |
---|
1439 | EQUATIONS |
---|
1440 | |
---|
1441 | switch VapourFlow |
---|
1442 | case "on": |
---|
1443 | "Pressure Drop through the condenser" |
---|
1444 | cond.InletV.F*trays(top).vV / 'm^2' = |
---|
1445 | sqrt((trays(top).OutletV.P - cond.OutletL.P + 1e-8 * 'atm')/(trays(top).rhoV*alfacond)); |
---|
1446 | when trays(top).OutletV.P < cond.OutletL.P switchto "off"; |
---|
1447 | |
---|
1448 | case "off": |
---|
1449 | "Prato selado" |
---|
1450 | cond.InletV.F = 0.0 * 'mol/s'; |
---|
1451 | when trays(top).OutletV.P > cond.OutletL.P + 1e-3 * 'atm' switchto "on"; |
---|
1452 | end |
---|
1453 | |
---|
1454 | CONNECTIONS |
---|
1455 | #vapor |
---|
1456 | reb.OutletV to trays(bot).InletV; |
---|
1457 | trays([top+topdown:topdown:bot]).OutletV to trays([top:topdown:bot-topdown]).InletV; |
---|
1458 | trays(top).OutletV to cond.InletV; |
---|
1459 | |
---|
1460 | #liquid |
---|
1461 | cond.OutletL to sp.Inlet; |
---|
1462 | sp.Outlet2 to p.Inlet; |
---|
1463 | p.Outlet to trays(top).InletL; |
---|
1464 | trays([top:topdown:bot-topdown]).OutletL to trays([top+topdown:topdown:bot]).InletL; |
---|
1465 | trays(bot).OutletL to reb.InletL; |
---|
1466 | |
---|
1467 | end |
---|
1468 | |
---|
1469 | #*---------------------------------------------------------------------- |
---|
1470 | * Model of a packed column section with: |
---|
1471 | * - NStages = theoretical number of equilibrium stages. |
---|
1472 | * |
---|
1473 | *---------------------------------------------------------------------* |
---|
1474 | Model Packed_Section_ColumnTeste |
---|
1475 | ATTRIBUTES |
---|
1476 | Pallete = true; |
---|
1477 | Icon = "icon/PackedSectionColumn"; |
---|
1478 | Brief = "Model of a packed column section."; |
---|
1479 | Info = |
---|
1480 | "== Model of a packed column section containing == |
---|
1481 | * NStages theoretical stages. |
---|
1482 | |
---|
1483 | == Specify == |
---|
1484 | * the feed stream of each tray (Inlet); |
---|
1485 | * the InletL stream of the top tray; |
---|
1486 | * the InletV stream of the bottom tray; |
---|
1487 | * the total pressure drop (dP) of the section. |
---|
1488 | |
---|
1489 | == Initial Conditions == |
---|
1490 | * the stages temperature (OutletL.T); |
---|
1491 | * the stages liquid holdup; |
---|
1492 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray. |
---|
1493 | "; |
---|
1494 | |
---|
1495 | PARAMETERS |
---|
1496 | outer PP as Plugin(Brief = "External Physical Properties", Type="PP"); |
---|
1497 | outer NComp as Integer; |
---|
1498 | NStages as Integer(Brief="Number of trays", Default=2); |
---|
1499 | topdown as Integer(Brief="Trays counting (1=top-down, -1=bottom-up)", Default=1); |
---|
1500 | top as Integer(Brief="Number of top tray"); |
---|
1501 | bot as Integer(Brief="Number of bottom tray"); |
---|
1502 | H as length (Brief="Height of packing"); |
---|
1503 | |
---|
1504 | VARIABLES |
---|
1505 | stage(NStages) as packedStageTeste; |
---|
1506 | dP as pressure; |
---|
1507 | |
---|
1508 | SET |
---|
1509 | top = (NStages-1)*(1-topdown)/2+1; |
---|
1510 | bot = NStages/top; |
---|
1511 | stage.hs = H/NStages; |
---|
1512 | stage.V = stage.hs * stage.d^2*3.14159/4; |
---|
1513 | |
---|
1514 | EQUATIONS |
---|
1515 | stage.deltaP = dP/NStages; |
---|
1516 | |
---|
1517 | CONNECTIONS |
---|
1518 | stage([top+topdown:topdown:bot]).OutletV to stage([top:topdown:bot-topdown]).InletV; |
---|
1519 | stage([top:topdown:bot-topdown]).OutletL to stage([top+topdown:topdown:bot]).InletL; |
---|
1520 | end |
---|
1521 | |
---|
1522 | #*---------------------------------------------------------------------- |
---|
1523 | * Model of a packed distillation column containing: |
---|
1524 | * - a section with NStages theoretical stages; |
---|
1525 | * - a kettle reboiler; |
---|
1526 | * - dymamic condenser; |
---|
1527 | * - a splitter which separate reflux and distillate; |
---|
1528 | * - a pump in reflux stream; |
---|
1529 | *---------------------------------------------------------------------* |
---|
1530 | Model PackedDistillation_kettle_cond as Packed_Section_ColumnTeste |
---|
1531 | ATTRIBUTES |
---|
1532 | Pallete = true; |
---|
1533 | Icon = "icon/PackedDistillationKettleCond"; |
---|
1534 | Brief = "Model of a distillation column with dynamic condenser and dynamic reboiler."; |
---|
1535 | Info = |
---|
1536 | "== Specify == |
---|
1537 | * the feed stream of each tray (Inlet); |
---|
1538 | * the pump pressure difference; |
---|
1539 | * the total pressure drop (dP) of the packing; |
---|
1540 | * the heat supllied in reboiler and condenser; |
---|
1541 | * the condenser vapor outlet flow (OutletV.F); |
---|
1542 | * the reboiler liquid outlet flow (OutletL.F); |
---|
1543 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
---|
1544 | |
---|
1545 | == Initial Conditions == |
---|
1546 | * the stages temperature (OutletL.T); |
---|
1547 | * the stages initial molar holdup; |
---|
1548 | * (NoComps - 1) OutletL (OR OutletV) compositions for each stage; |
---|
1549 | |
---|
1550 | * the condenser temperature (OutletL.T); |
---|
1551 | * the condenser liquid level (Level); |
---|
1552 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
---|
1553 | |
---|
1554 | * the reboiler temperature (OutletL.T); |
---|
1555 | * the reboiler liquid level (Level); |
---|
1556 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
---|
1557 | "; |
---|
1558 | |
---|
1559 | PARAMETERS |
---|
1560 | VapourFlow as Switcher(Valid = ["on", "off"], Default = "on"); |
---|
1561 | |
---|
1562 | VARIABLES |
---|
1563 | cond as condenser; |
---|
1564 | reb as reboiler; |
---|
1565 | sptop as splitter; |
---|
1566 | pump1 as pump; |
---|
1567 | |
---|
1568 | CONNECTIONS |
---|
1569 | #vapor |
---|
1570 | reb.OutletV to stage(bot).InletV; |
---|
1571 | stage(top).OutletV to cond.InletV; |
---|
1572 | |
---|
1573 | #liquid |
---|
1574 | cond.OutletL to sptop.Inlet; |
---|
1575 | sptop.Outlet2 to pump1.Inlet; |
---|
1576 | pump1.Outlet to stage(top).InletL; |
---|
1577 | stage(bot).OutletL to reb.InletL; |
---|
1578 | |
---|
1579 | EQUATIONS |
---|
1580 | switch VapourFlow |
---|
1581 | case "on": |
---|
1582 | stage(bot).InletV.F*stage(bot).vV = sqrt((reb.OutletV.P - stage(bot).OutletV.P)/ |
---|
1583 | (stage(bot).rhoV*stage(bot).Qsil*20))*(stage(bot).d^2*3.14159/4*stage(bot).e - stage(bot).Al); |
---|
1584 | when stage(bot).InletV.F < 1e-6 * 'kmol/h' switchto "off"; |
---|
1585 | |
---|
1586 | case "off": |
---|
1587 | stage(bot).InletV.F = 0 * 'mol/s'; |
---|
1588 | when reb.OutletV.P > stage(bot).OutletV.P + 1e-1 * 'atm' switchto "on"; |
---|
1589 | end |
---|
1590 | |
---|
1591 | end |
---|
1592 | |
---|