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