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 | * Author: Maurício Carvalho Maciel |
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17 | * $Id: sepComp.mso 364 2007-09-08 19:46:13Z arge $ |
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18 | *--------------------------------------------------------------------*# |
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19 | |
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20 | using "streams"; |
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21 | |
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22 | Model sepComp_n |
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23 | ATTRIBUTES |
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24 | Pallete = true; |
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25 | Icon = "icon/splitter_n"; |
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26 | Brief = "Model of a separator of components"; |
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27 | Info = |
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28 | "== Assumptions == |
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29 | * thermodynamics equilibrium |
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30 | * adiabatic |
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31 | |
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32 | == Specify == |
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33 | * the inlet stream |
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34 | * (NComp - 1) molar fractions to (Noutlet - 1) outlet streams |
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35 | * (Noutlet - 1) frac (fraction of split of the outlet streams): |
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36 | |
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37 | frac(i) = (Mole Flow of the outlet stream i / |
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38 | Mole Flow of the inlet stream) |
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39 | where i = 1, 2,...,Noutlet |
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40 | |
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41 | or |
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42 | |
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43 | * (Noutlet - 1) recovery (Recovery of the component specified in the outlet stream i): |
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44 | |
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45 | recovery(i) = (Mole Flow of the component specified in the Outlet stream i/ |
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46 | Mole Flow of the component specified in the inlet stream) |
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47 | where i = 1, 2,...,Noutlet |
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48 | "; |
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49 | |
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50 | PARAMETERS |
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51 | |
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52 | outer PP as Plugin (Brief = "External Physical Properties", Type="PP"); |
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53 | outer NComp as Integer (Brief = "Number of chemical components", Lower = 1); |
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54 | NOutlet as Integer (Brief = "Number of Outlet Streams", Lower = 1); |
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55 | mainComp as Integer (Brief = "Component specified", Default = 1, Lower = 1); |
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56 | |
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57 | VARIABLES |
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58 | |
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59 | in Inlet as stream (Brief = "Inlet stream", PosX=0, PosY=0.5, Symbol="_{in}"); |
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60 | out Outlet(NOutlet) as stream (Brief = "Outlet streams", PosX=1, PosY=0.5059, Symbol="_{out}"); |
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61 | |
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62 | frac(NOutlet) as fraction (Brief = "Distribution of the Outlet streams", Symbol="\phi"); |
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63 | recovery(NOutlet) as fraction (Brief = "Recovery of the component specified", Symbol="\eta"); |
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64 | |
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65 | EQUATIONS |
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66 | |
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67 | "Flow" |
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68 | sum(Outlet.F) = Inlet.F; |
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69 | |
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70 | |
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71 | for i in [1:NOutlet-1] |
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72 | |
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73 | "Mol fraction normalisation" |
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74 | sum(Outlet(i).z) = 1; |
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75 | |
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76 | end |
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77 | |
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78 | |
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79 | for i in [1:NComp] |
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80 | |
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81 | "Composition" |
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82 | sum(Outlet.F*Outlet.z(i)) = Inlet.F*Inlet.z(i); |
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83 | |
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84 | end |
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85 | |
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86 | |
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87 | for i in [1:NOutlet] |
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88 | |
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89 | "Flow" |
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90 | Outlet(i).F = Inlet.F*frac(i); |
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91 | |
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92 | "Recovery" |
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93 | recovery(i)*Inlet.z(mainComp) = frac(i)*Outlet(i).z(mainComp); |
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94 | |
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95 | "Pressure" |
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96 | Outlet(i).P = Inlet.P; |
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97 | |
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98 | "Enthalpy" |
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99 | Outlet(i).h = (1-Outlet(i).v)*PP.LiquidEnthalpy(Outlet(i).T, Outlet(i).P, Outlet(i).z) + |
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100 | Outlet(i).v*PP.VapourEnthalpy(Outlet(i).T, Outlet(i).P, Outlet(i).z); |
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101 | |
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102 | "Temperature" |
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103 | Outlet(i).T = Inlet.T; |
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104 | |
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105 | "Vapourization Fraction" |
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106 | Outlet(i).v = PP.VapourFraction(Outlet(i).T, Outlet(i).P, Outlet(i).z); |
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107 | |
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108 | end |
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109 | |
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110 | end |
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111 | |
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112 | |
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113 | Model sepComp |
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114 | ATTRIBUTES |
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115 | Pallete = true; |
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116 | Icon = "icon/splitter"; |
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117 | Brief = "Model of a separator of components"; |
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118 | Info = |
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119 | "== Assumptions == |
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120 | * thermodynamics equilibrium |
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121 | * adiabatic |
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122 | |
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123 | == Specify == |
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124 | * the inlet stream |
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125 | * (NComp - 1) molar fractions to 1 of the outlet streams |
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126 | * the fraction of split of the outlet streams |
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127 | "; |
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128 | |
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129 | PARAMETERS |
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130 | |
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131 | outer PP as Plugin (Brief = "External Physical Properties", Type="PP"); |
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132 | outer NComp as Integer (Brief = "Number of chemical components", Lower = 1); |
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133 | mainComp as Integer (Brief = "Component specified", Default = 1, Lower = 1); |
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134 | |
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135 | VARIABLES |
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136 | |
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137 | in Inlet as stream (Brief = "Inlet stream", PosX=0, PosY=0.5001, Symbol="_{in}"); |
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138 | out Outlet1 as stream (Brief = "Outlet stream 1", PosX=1, PosY=0.3027, Symbol="_{out1}"); |
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139 | out Outlet2 as stream (Brief = "Outlet stream 2", PosX=1, PosY=0.7141, Symbol="_{out2}"); |
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140 | |
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141 | frac as fraction (Brief = "Fraction to Outlet 1", Symbol="\phi"); |
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142 | recovery as fraction (Brief = "Recovery of the component specified", Symbol="\eta"); |
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143 | |
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144 | EQUATIONS |
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145 | |
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146 | "Flow" |
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147 | Outlet1.F = Inlet.F * frac; |
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148 | Outlet1.F + Outlet2.F = Inlet.F; |
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149 | |
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150 | recovery*Inlet.z(mainComp) = frac*Outlet1.z(mainComp); |
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151 | |
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152 | sum(Outlet1.z) = 1; |
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153 | |
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154 | for i in [1:NComp] |
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155 | |
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156 | "Composition" |
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157 | Outlet1.F*Outlet1.z(i) + Outlet2.F*Outlet2.z(i) = Inlet.F*Inlet.z(i); |
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158 | |
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159 | end |
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160 | |
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161 | "Pressure" |
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162 | Outlet1.P = Inlet.P; |
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163 | Outlet2.P = Inlet.P; |
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164 | |
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165 | "Enthalpy" |
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166 | Outlet1.h = (1-Outlet1.v)*PP.LiquidEnthalpy(Outlet1.T, Outlet1.P, Outlet1.z) + |
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167 | Outlet1.v*PP.VapourEnthalpy(Outlet1.T, Outlet1.P, Outlet1.z); |
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168 | Outlet2.h = (1-Outlet2.v)*PP.LiquidEnthalpy(Outlet2.T, Outlet2.P, Outlet2.z) + |
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169 | Outlet2.v*PP.VapourEnthalpy(Outlet2.T, Outlet2.P, Outlet2.z); |
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170 | |
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171 | "Temperature" |
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172 | Outlet1.T = Inlet.T; |
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173 | Outlet2.T = Inlet.T; |
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174 | |
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175 | "Vapourization Fraction" |
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176 | Outlet1.v = PP.VapourFraction(Outlet1.T, Outlet1.P, Outlet1.z); |
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177 | Outlet2.v = PP.VapourFraction(Outlet2.T, Outlet2.P, Outlet2.z); |
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178 | |
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179 | end |
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180 | |
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181 | |
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