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 304 2007-07-04 23:01:40Z 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 | or |
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41 | |
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42 | (Noutlet - 1) recovery (Recovery of the component specified in the outlet stream i): |
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43 | |
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44 | recovery(i) = (Mole Flow of the component specified in the Outlet stream i/ |
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45 | Mole Flow of the component specified in the inlet stream) |
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46 | where i = 1, 2,...,Noutlet |
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47 | "; |
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48 | |
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49 | PARAMETERS |
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50 | |
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51 | outer PP as Plugin (Brief = "External Physical Properties", Type="PP"); |
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52 | outer NComp as Integer (Brief = "Number of chemical components", Lower = 1); |
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53 | NOutlet as Integer (Brief = "Number of Outlet Streams", Lower = 1); |
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54 | mainComp as Integer (Brief = "Component specified", Default = 1, Lower = 1); |
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55 | |
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56 | VARIABLES |
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57 | |
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58 | in Inlet as stream; |
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59 | out Outlet(NOutlet) as stream; |
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60 | |
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61 | frac(NOutlet) as fraction (Brief = "Distribution of the Outlet streams"); |
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62 | recovery(NOutlet) as fraction (Brief = "Recovery of the component specified"); |
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63 | |
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64 | EQUATIONS |
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65 | |
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66 | "Flow" |
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67 | sum(Outlet.F) = Inlet.F; |
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68 | |
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69 | |
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70 | for i in [1:NOutlet-1] |
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71 | |
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72 | "Mol fraction normalisation" |
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73 | sum(Outlet(i).z) = 1; |
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74 | |
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75 | end |
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76 | |
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77 | |
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78 | for i in [1:NComp] |
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79 | |
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80 | "Composition" |
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81 | sum(Outlet.F*Outlet.z(i)) = Inlet.F*Inlet.z(i); |
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82 | |
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83 | end |
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84 | |
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85 | |
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86 | for i in [1:NOutlet] |
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87 | |
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88 | "Flow" |
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89 | Outlet(i).F = Inlet.F*frac(i); |
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90 | |
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91 | "Recovery" |
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92 | recovery(i)*Inlet.z(mainComp) = frac(i)*Outlet(i).z(mainComp); |
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93 | |
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94 | "Pressure" |
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95 | Outlet(i).P = Inlet.P; |
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96 | |
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97 | "Enthalpy" |
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98 | Outlet(i).h = (1-Outlet(i).v)*PP.LiquidEnthalpy(Outlet(i).T, Outlet(i).P, Outlet(i).z) + |
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99 | Outlet(i).v*PP.VapourEnthalpy(Outlet(i).T, Outlet(i).P, Outlet(i).z); |
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100 | |
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101 | "Temperature" |
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102 | Outlet(i).T = Inlet.T; |
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103 | |
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104 | "Vapourization Fraction" |
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105 | Outlet(i).v = PP.VapourFraction(Outlet(i).T, Outlet(i).P, Outlet(i).z); |
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106 | |
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107 | end |
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108 | |
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109 | end |
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110 | |
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111 | |
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112 | Model sepComp |
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113 | ATTRIBUTES |
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114 | Pallete = true; |
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115 | Icon = "icon/splitter"; |
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116 | Brief = "Model of a separator of components"; |
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117 | Info = " |
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118 | Assumptions: |
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119 | * thermodynamics equilibrium |
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120 | * adiabatic |
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121 | |
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122 | Specify: |
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123 | * the inlet stream |
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124 | * (NComp - 1) molar fractions to 1 of the outlet streams |
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125 | * the fraction of split of the outlet streams |
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126 | "; |
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127 | |
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128 | PARAMETERS |
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129 | |
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130 | outer PP as Plugin (Brief = "External Physical Properties", Type="PP"); |
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131 | outer NComp as Integer (Brief = "Number of chemical components", Lower = 1); |
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132 | mainComp as Integer (Brief = "Component specified", Default = 1, Lower = 1); |
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133 | |
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134 | VARIABLES |
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135 | |
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136 | in Inlet as stream; |
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137 | out Outlet1 as stream; |
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138 | out Outlet2 as stream; |
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139 | |
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140 | frac as fraction (Brief = "Fraction to Outlet 1"); |
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141 | recovery as fraction (Brief = "Recovery of the component specified"); |
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142 | |
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143 | EQUATIONS |
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144 | |
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145 | "Flow" |
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146 | Outlet1.F = Inlet.F * frac; |
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147 | Outlet1.F + Outlet2.F = Inlet.F; |
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148 | |
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149 | recovery*Inlet.z(mainComp) = frac*Outlet1.z(mainComp); |
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150 | |
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151 | sum(Outlet1.z) = 1; |
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152 | |
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153 | for i in [1:NComp] |
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154 | |
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155 | "Composition" |
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156 | Outlet1.F*Outlet1.z(i) + Outlet2.F*Outlet2.z(i) = Inlet.F*Inlet.z(i); |
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157 | |
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158 | end |
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159 | |
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160 | "Pressure" |
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161 | Outlet1.P = Inlet.P; |
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162 | Outlet2.P = Inlet.P; |
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163 | |
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164 | "Enthalpy" |
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165 | Outlet1.h = (1-Outlet1.v)*PP.LiquidEnthalpy(Outlet1.T, Outlet1.P, Outlet1.z) + |
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166 | Outlet1.v*PP.VapourEnthalpy(Outlet1.T, Outlet1.P, Outlet1.z); |
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167 | Outlet2.h = (1-Outlet2.v)*PP.LiquidEnthalpy(Outlet2.T, Outlet2.P, Outlet2.z) + |
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168 | Outlet2.v*PP.VapourEnthalpy(Outlet2.T, Outlet2.P, Outlet2.z); |
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169 | |
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170 | "Temperature" |
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171 | Outlet1.T = Inlet.T; |
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172 | Outlet2.T = Inlet.T; |
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173 | |
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174 | "Vapourization Fraction" |
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175 | Outlet1.v = PP.VapourFraction(Outlet1.T, Outlet1.P, Outlet1.z); |
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176 | Outlet2.v = PP.VapourFraction(Outlet2.T, Outlet2.P, Outlet2.z); |
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177 | |
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178 | end |
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179 | |
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180 | |
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