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, Paula B. Staudt, Rafael P. Soares |
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17 | * $Id: splitter.mso 910 2010-02-20 03:24:41Z arge $ |
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18 | *--------------------------------------------------------------------*# |
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19 | |
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20 | |
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21 | using "streams"; |
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22 | |
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23 | Model splitter_n |
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24 | ATTRIBUTES |
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25 | Pallete = false; |
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26 | Icon = "icon/splitter_n"; |
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27 | Brief = "Model of a splitter (NOT Handled by the GUI)"; |
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28 | Info = |
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29 | "== Assumptions == |
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30 | * thermodynamics equilibrium |
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31 | * adiabatic |
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32 | |
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33 | == Specify == |
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34 | * the inlet stream |
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35 | * (Noutlet - 1) 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 | |
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42 | PARAMETERS |
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43 | NOutlet as Integer (Brief = "Number of Outlet Streams", Lower = 1); |
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44 | |
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45 | VARIABLES |
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46 | in Inlet as stream (Brief = "Inlet stream", PosX=0, PosY=0.5001, Symbol="_{in}"); |
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47 | out Outlet(NOutlet) as stream (Brief = "Outlet streams", PosX=1, PosY=0.5, Symbol="_{out}"); |
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48 | frac(NOutlet) as fraction (Brief = "Distribution of Outlets", Default=0.5, Symbol="\phi"); |
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49 | |
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50 | EQUATIONS |
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51 | |
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52 | sum(frac) = 1; |
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53 | |
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54 | for i in [1:NOutlet] do |
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55 | |
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56 | "Flow" |
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57 | Outlet(i).F = Inlet.F*frac(i); |
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58 | |
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59 | "Composition" |
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60 | Outlet(i).z = Inlet.z; |
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61 | |
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62 | "Pressure" |
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63 | Outlet(i).P = Inlet.P; |
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64 | |
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65 | "Enthalpy" |
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66 | Outlet(i).h = Inlet.h; |
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67 | |
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68 | "Temperature" |
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69 | Outlet(i).T = Inlet.T; |
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70 | |
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71 | "Vapourisation Fraction" |
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72 | Outlet(i).v = Inlet.v; |
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73 | end |
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74 | |
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75 | end |
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76 | |
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77 | Model splitter2 |
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78 | ATTRIBUTES |
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79 | Pallete = true; |
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80 | Icon = "icon/splitter_column"; |
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81 | Brief = "Splitter with 2 outlet streams"; |
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82 | Info = |
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83 | "== Assumptions == |
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84 | *Thermodynamics equilibrium |
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85 | *Adiabatic |
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86 | |
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87 | == Specify == |
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88 | * The inlet stream |
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89 | * One FlowRatios of split of the outlet streams: |
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90 | |
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91 | FlowRatios(i) = (Mole Flow of the outlet stream i / |
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92 | Mole Flow of the inlet stream) |
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93 | where i = 1, 2 |
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94 | "; |
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95 | |
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96 | VARIABLES |
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97 | in Inlet as stream (Brief = "Inlet stream", PosX=0.5, PosY=0, Symbol="_{in}"); |
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98 | out Outlet1 as stream (Brief = "Outlet stream 1", PosX=0.25, PosY=1, Symbol="_{out1}"); |
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99 | out Outlet2 as stream (Brief = "Outlet stream 2", PosX=0.75, PosY=1, Symbol="_{out2}"); |
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100 | FlowRatios(2) as fraction (Brief = "Distribution of Outlets", Default=0.33, Symbol="\phi"); |
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101 | |
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102 | EQUATIONS |
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103 | |
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104 | "Normalize Flow Ratios" |
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105 | sum(FlowRatios) = 1; |
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106 | |
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107 | "Flow" |
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108 | Outlet1.F = Inlet.F * FlowRatios(1); |
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109 | Outlet1.F + Outlet2.F = Inlet.F; |
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110 | |
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111 | "Composition" |
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112 | Outlet1.z = Inlet.z; |
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113 | Outlet2.z = Inlet.z; |
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114 | |
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115 | "Pressure" |
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116 | Outlet1.P = Inlet.P; |
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117 | Outlet2.P = Inlet.P; |
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118 | |
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119 | "Enthalpy" |
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120 | Outlet1.h = Inlet.h; |
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121 | Outlet2.h = Inlet.h; |
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122 | |
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123 | "Temperature" |
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124 | Outlet1.T = Inlet.T; |
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125 | Outlet2.T = Inlet.T; |
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126 | |
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127 | "Vapourisation Fraction" |
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128 | Outlet1.v = Inlet.v; |
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129 | Outlet2.v = Inlet.v; |
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130 | |
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131 | end |
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132 | |
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133 | Model splitter3 |
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134 | ATTRIBUTES |
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135 | Pallete = true; |
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136 | Icon = "icon/splitter"; |
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137 | Brief = "Model of a splitter with 3 outlet streams"; |
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138 | Info = |
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139 | "== Assumptions == |
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140 | * Thermodynamics equilibrium |
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141 | * Adiabatic |
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142 | |
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143 | == Specify == |
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144 | *The inlet stream |
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145 | *Two FlowRatios of split of the outlet streams: |
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146 | |
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147 | FlowRatios(i) = (Mole Flow of the outlet stream i / |
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148 | Mole Flow of the inlet stream) |
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149 | where i = 1, 2, 3 |
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150 | "; |
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151 | |
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152 | VARIABLES |
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153 | |
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154 | in Inlet as stream (Brief = "Inlet stream", PosX=0, PosY=0.5001, Symbol="_{in}"); |
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155 | out Outlet1 as stream (Brief = "Outlet stream 1", PosX=1, PosY=0.25, Symbol="_{Out1}"); |
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156 | out Outlet2 as stream (Brief = "Outlet stream 2", PosX=1, PosY=0.5059, Symbol="_{Out2}"); |
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157 | out Outlet3 as stream (Brief = "Outlet stream 3", PosX=1, PosY=0.75, Symbol="_{Out3}"); |
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158 | |
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159 | FlowRatios(3) as fraction (Brief = "Distribution of Outlets", Default=0.33, Symbol="\phi"); |
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160 | |
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161 | EQUATIONS |
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162 | |
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163 | "Normalize Flow Ratios" |
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164 | sum(FlowRatios) = 1; |
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165 | |
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166 | "Outlet1 Flow" |
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167 | Outlet1.F = Inlet.F*FlowRatios(1); |
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168 | |
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169 | "Outlet2 Flow" |
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170 | Outlet2.F = Inlet.F*FlowRatios(2); |
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171 | |
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172 | "Outlet3 Flow" |
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173 | Outlet3.F = Inlet.F*FlowRatios(3); |
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174 | |
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175 | "Outlet1 Composition" |
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176 | Outlet1.z = Inlet.z; |
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177 | |
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178 | "Outlet2 Composition" |
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179 | Outlet2.z = Inlet.z; |
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180 | |
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181 | "Outlet3 Composition" |
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182 | Outlet3.z = Inlet.z; |
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183 | |
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184 | "Outlet1 Pressure" |
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185 | Outlet1.P = Inlet.P; |
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186 | |
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187 | "Outlet2 Pressure" |
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188 | Outlet2.P = Inlet.P; |
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189 | |
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190 | "Outlet3 Pressure" |
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191 | Outlet3.P = Inlet.P; |
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192 | |
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193 | "Outlet1 Enthalpy" |
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194 | Outlet1.h = Inlet.h; |
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195 | |
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196 | "Outlet2 Enthalpy" |
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197 | Outlet2.h = Inlet.h; |
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198 | |
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199 | "Outlet3 Enthalpy" |
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200 | Outlet3.h = Inlet.h; |
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201 | |
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202 | "Outlet1 Temperature" |
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203 | Outlet1.T = Inlet.T; |
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204 | |
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205 | "Outlet2 Temperature" |
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206 | Outlet2.T = Inlet.T; |
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207 | |
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208 | "Outlet3 Temperature" |
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209 | Outlet3.T = Inlet.T; |
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210 | |
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211 | "Outlet1 Vapourisation Fraction" |
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212 | Outlet1.v = Inlet.v; |
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213 | |
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214 | "Outlet2 Vapourisation Fraction" |
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215 | Outlet2.v = Inlet.v; |
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216 | |
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217 | "Outlet3 Vapourisation Fraction" |
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218 | Outlet3.v = Inlet.v; |
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219 | |
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220 | end |
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221 | |
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222 | Model splitter_column |
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223 | |
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224 | ATTRIBUTES |
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225 | Pallete = true; |
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226 | Icon = "icon/splitter_column"; |
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227 | Brief = "Splitter with 2 outlet streams to be used with column section model"; |
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228 | Info = |
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229 | "== Assumptions == |
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230 | *Thermodynamics equilibrium |
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231 | *Adiabatic |
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232 | |
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233 | == Specify == |
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234 | * The inlet stream |
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235 | * One Split Flow of the outlet stream: |
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236 | **SplitFlow_RefluxStream: split of the outlet Reflux stream |
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237 | **SplitFlow_DistillateStream: split of the outlet Distillate stream |
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238 | |
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239 | OR |
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240 | |
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241 | * The inlet stream and the RefluxRatio |
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242 | "; |
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243 | |
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244 | VARIABLES |
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245 | in Inlet as stream (Brief = "Inlet stream", PosX=0.5, PosY=0, Symbol="_{in}"); |
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246 | out Reflux as stream (Brief = "Reflux stream", PosX=0.25, PosY=1, Symbol="_{reflux}"); |
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247 | out Distillate as stream (Brief = "Distillate stream", PosX=0.75, PosY=1, Symbol="_{distillate}"); |
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248 | |
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249 | SplitFlow_RefluxStream as fraction (Brief = "split of the outlet Reflux stream", Default=0.33); |
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250 | SplitFlow_DistillateStream as fraction (Brief = "split of the outlet Distillate stream", Default=0.33); |
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251 | RefluxRatio as positive (Brief = "Reflux Ratio", Default=10, Lower = 0.05); |
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252 | |
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253 | EQUATIONS |
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254 | |
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255 | "Reflux Ratio" |
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256 | #Reflux.F*RefluxRatio = SplitFlow_RefluxStream*(Reflux.F*RefluxRatio + Reflux.F); |
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257 | SplitFlow_RefluxStream*(1 + RefluxRatio) = RefluxRatio; |
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258 | |
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259 | "Normalize Flow Ratios" |
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260 | SplitFlow_RefluxStream + SplitFlow_DistillateStream = 1; |
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261 | |
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262 | "Flow" |
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263 | Reflux.F = Inlet.F * SplitFlow_RefluxStream; |
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264 | Inlet.F = Reflux.F + Distillate.F; |
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265 | |
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266 | "Composition" |
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267 | Reflux.z = Inlet.z; |
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268 | Distillate.z = Inlet.z; |
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269 | |
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270 | "Pressure" |
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271 | Reflux.P = Inlet.P; |
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272 | Distillate.P = Inlet.P; |
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273 | |
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274 | "Enthalpy" |
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275 | Reflux.h = Inlet.h; |
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276 | Distillate.h = Inlet.h; |
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277 | |
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278 | "Temperature" |
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279 | Reflux.T = Inlet.T; |
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280 | Distillate.T = Inlet.T; |
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281 | |
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282 | "Vapourisation Fraction" |
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283 | Reflux.v = Inlet.v; |
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284 | Distillate.v = Inlet.v; |
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285 | |
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286 | end |
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