1 | #*-------------------------------------------------------------------- |
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2 | * Sample file for column model With Tray Efficiency Prediction |
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3 | *-------------------------------------------------------------------- |
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4 | * |
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5 | *---------------------------------------------------------------------- |
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6 | * Author: Josias J. Junges |
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7 | *--------------------------------------------------------------------*# |
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8 | |
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9 | using "stage_separators/column_Eff"; |
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10 | using "controllers/PIDIncr"; |
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11 | |
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12 | FlowSheet Sample_Distillation_kettle_cond_EffEmp |
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13 | PARAMETERS |
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14 | PP as Plugin(Brief="Physical Properties", |
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15 | Type="PP", |
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16 | Components = [ "benzene", "toluene" ], |
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17 | LiquidModel = "UNIFAC", |
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18 | VapourModel = "SRK" |
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19 | ); |
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20 | NComp as Integer; |
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21 | iLK as Integer; |
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22 | iHK as Integer; |
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23 | |
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24 | Pmin as pressure (Brief="Minimum column temperature"); |
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25 | Pmax as pressure (Brief="Minimum column temperature"); |
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26 | Qcmin as heat_rate (Brief="Minimum Condenser Heat supplied"); |
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27 | Qcmax as heat_rate (Brief="Maximum Condenser Heat supplied"); |
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28 | Hmint as length (Brief="Minimum liquid level in top tank"); |
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29 | Hmaxt as length (Brief="Maximum liquid level in top tank"); |
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30 | Hminb as length (Brief="Minimum liquid level in reboiler"); |
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31 | Hmaxb as length (Brief="Maximum liquid level in reboiler"); |
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32 | Frmin as flow_mol (Brief="Minimum bottom flow rate"); |
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33 | Frmax as flow_mol (Brief="Maximum bottom flow rate"); |
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34 | Fcmin as flow_mol (Brief="Minimum reflux flow rate"); |
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35 | Fcmax as flow_mol (Brief="Maximum reflux flow rate"); |
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36 | |
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37 | VARIABLES |
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38 | Qc as energy_source (Brief="Heat rate removed from condenser"); |
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39 | Qr as energy_source (Brief="Heat rate supplied to reboiler"); |
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40 | Padc as Real (Brief="Dimensionless pressure"); |
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41 | Had_top as Real (Brief="Dimensionless condenser level"); |
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42 | Had_bot as Real (Brief="Dimensionless reboiler level"); |
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43 | DF as fraction (Brief="Distillation to feed ratio"); |
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44 | RR as Real (Brief="Reflux ratio"); |
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45 | |
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46 | SET |
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47 | NComp = PP.NumberOfComponents; |
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48 | |
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49 | DEVICES |
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50 | |
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51 | col as Distillation_kettle_cond_EffEmp; |
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52 | feed as source; |
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53 | zero as stream; |
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54 | LCtop as PIDIncr; |
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55 | LCbot as PIDIncr; |
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56 | PCcond as PIDIncr; |
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57 | |
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58 | SET |
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59 | col.NTrays = 8; |
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60 | |
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61 | CONNECTIONS |
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62 | feed.Outlet to col.trays(4).Inlet; |
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63 | zero to col.reb.Inlet; |
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64 | zero to col.trays([1:3]).Inlet; |
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65 | zero to col.trays([5:col.NTrays]).Inlet; |
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66 | Qc.OutletQ to col.cond.InletQ; |
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67 | Qr.OutletQ to col.reb.InletQ; |
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68 | |
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69 | EQUATIONS |
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70 | |
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71 | "Pressure Controller Cond" |
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72 | PCcond.Parameters.tau = 0*'s'; |
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73 | PCcond.Parameters.tauSet = 0*'s'; |
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74 | PCcond.Parameters.alpha = 0.3; |
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75 | PCcond.Parameters.bias = 0.67; |
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76 | PCcond.Parameters.gamma = 1; |
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77 | PCcond.Parameters.beta = 1; |
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78 | PCcond.Options.action = 1; |
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79 | PCcond.Options.clip = 1; |
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80 | PCcond.Options.autoMan = 0; |
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81 | PCcond.Parameters.intTime = 60*'min'; |
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82 | PCcond.Parameters.gain = 0.1; |
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83 | PCcond.Parameters.derivTime = 10*'min'; |
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84 | PCcond.Ports.setPoint = (0.2 * 'bar' - Pmin)/(Pmax-Pmin); |
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85 | PCcond.Ports.input = Padc; |
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86 | Padc = (col.cond.OutletL.P-Pmin)/(Pmax-Pmin); |
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87 | Qc.OutletQ.Q = Qcmin+(Qcmax-Qcmin)*PCcond.Ports.output; |
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88 | |
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89 | "Ttop Level Controller" |
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90 | LCtop.Parameters.tau = 0*'s'; |
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91 | LCtop.Parameters.tauSet = 0*'s'; |
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92 | LCtop.Parameters.alpha = 0.3; |
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93 | LCtop.Parameters.bias = 0.5; |
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94 | LCtop.Parameters.gamma = 1; |
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95 | LCtop.Parameters.beta = 1; |
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96 | LCtop.Options.action = -1; |
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97 | LCtop.Options.clip = 1; |
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98 | LCtop.Options.autoMan = 0; |
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99 | LCtop.Parameters.intTime = 20*'min'; |
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100 | LCtop.Parameters.gain = 0.9; |
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101 | LCtop.Parameters.derivTime = 0*'s'; |
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102 | LCtop.Ports.setPoint = (1 * 'm' - Hmint)/(Hmaxt-Hmint); |
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103 | LCtop.Ports.input = Had_top; |
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104 | Had_top = (col.cond.Level-Hmint)/(Hmaxt-Hmint); |
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105 | col.sptop.Outlet2.F = Fcmin + (Fcmax-Fcmin) * LCtop.Ports.output; |
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106 | |
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107 | "Tbottom Level Controller" |
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108 | LCbot.Parameters.tau = 0*'s'; |
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109 | LCbot.Parameters.tauSet = 0*'s'; |
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110 | LCbot.Parameters.alpha = 0.3; |
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111 | LCbot.Parameters.bias = 0.5; |
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112 | LCbot.Parameters.gamma = 1; |
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113 | LCbot.Parameters.beta = 1; |
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114 | LCbot.Options.action = -1; |
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115 | LCbot.Options.clip = 1; |
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116 | LCbot.Options.autoMan = 0; |
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117 | LCbot.Parameters.intTime = 20*'min'; |
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118 | LCbot.Parameters.gain = 0.9; |
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119 | LCbot.Parameters.derivTime = 0*'s'; |
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120 | LCbot.Ports.setPoint = (1 * 'm' - Hminb)/(Hmaxb-Hminb); |
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121 | LCbot.Ports.input = Had_bot; |
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122 | Had_bot = (col.reb.Level-Hminb)/(Hmaxb-Hminb); |
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123 | col.reb.OutletL.F = Frmin + (Frmax-Frmin) * LCbot.Ports.output; |
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124 | |
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125 | DF = col.sptop.Outlet1.F / feed.Outlet.F; |
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126 | RR * (col.sptop.Outlet1.F + col.cond.OutletV.F) = col.sptop.Outlet2.F; |
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127 | |
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128 | SPECIFY |
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129 | feed.F = 200 * 'kmol/h'; |
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130 | feed.T = (60+273.15) * 'K'; |
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131 | feed.P = 1 * 'bar'; |
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132 | feed.Composition(1) = 0.6; |
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133 | feed.Composition(2)=0.4; |
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134 | |
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135 | zero.F = 0 * 'kmol/h'; |
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136 | zero.T = 300 * 'K'; |
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137 | zero.P = 1 * 'atm'; |
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138 | zero.z = 1/NComp; |
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139 | zero.v = 0; |
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140 | zero.h = 0 * 'J/mol'; |
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141 | |
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142 | RR = 1; |
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143 | |
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144 | col.cond.OutletV.F = 0 * 'kmol/h'; |
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145 | Qr.OutletQ.Q = 1854471.14*0.985 * 'W'; |
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146 | col.pump1.dP = 0.0000000001* 'kPa'; |
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147 | |
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148 | col.alfaTopo = 2; |
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149 | |
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150 | #col.trays(1).Emv = 0.47806479; |
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151 | #col.trays(2).Emv = 0.53702951; |
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152 | #col.trays(3).Emv = 0.59429546; |
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153 | #col.trays(4).Emv = 0.63645948; |
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154 | #col.trays(5).Emv = 0.71892244; |
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155 | #col.trays(6).Emv = 0.7437489; |
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156 | #col.trays(7).Emv = 0.76615292; |
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157 | #col.trays(8).Emv = 0.79338953; |
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158 | |
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159 | #para modelo de eff |
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160 | col.trays.Dv = 3.2556e-6*'m^2/s'; |
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161 | col.trays.Dl = 6.1085e-9*'m^2/s'; |
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162 | col.trays(1).sigma=0.02649902*'N/m'; |
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163 | col.trays(2).sigma=0.02578077*'N/m'; |
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164 | col.trays(3).sigma=0.02510972*'N/m'; |
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165 | col.trays(4).sigma=0.02445816*'N/m'; |
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166 | col.trays(5).sigma=0.02402951*'N/m'; |
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167 | col.trays(6).sigma=0.02359190*'N/m'; |
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168 | col.trays(7).sigma=0.02311517*'N/m'; |
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169 | col.trays(8).sigma=0.02256425*'N/m'; |
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170 | |
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171 | SET |
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172 | |
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173 | #eff model |
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174 | col.trays.z = 1.35*'m'; |
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175 | col.trays.d = 1.85*'m'; |
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176 | col.trays.fi= 0.1407; |
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177 | col.trays.Ts= 0.5*'m'; |
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178 | col.trays.Aa=2.2542*'m^2'; |
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179 | |
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180 | col.trays.V = 1.344 * 'm^3'; |
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181 | col.trays.Ah = 0.37824 * 'm^2'; |
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182 | col.trays.hw = 0.052 * 'm'; |
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183 | col.trays.lw = 1.264 * 'm'; |
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184 | col.trays.Q = 0 * 'kW'; |
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185 | col.trays.beta = 0.65; |
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186 | col.trays.alfa = 23; |
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187 | col.trays.Ap = 2.4711 * 'm^2'; |
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188 | |
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189 | col.cond.V = 4*1.344 * 'm^3'; |
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190 | col.cond.Across = 2.688 * 'm^2'; |
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191 | |
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192 | col.reb.V = 4*1.344 * 'm^3'; |
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193 | col.reb.Across = 2.688 * 'm^2'; |
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194 | |
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195 | # Controllers type |
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196 | PCcond.PID_Select = "Ideal_AW"; |
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197 | LCtop.PID_Select = "Ideal_AW"; |
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198 | LCbot.PID_Select = "Ideal_AW"; |
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199 | |
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200 | Frmin = 25 * 'kmol/h'; |
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201 | Frmax = 115 * 'kmol/h'; |
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202 | Fcmin = 90 * 'kmol/h'; |
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203 | Fcmax = 110 * 'kmol/h'; |
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204 | Hmint = 0.01 * 'm'; |
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205 | Hmaxt = 2.0 * 'm'; |
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206 | Hminb = 0.01 * 'm'; |
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207 | Hmaxb = 2.0 * 'm'; |
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208 | Pmin = 0.05 * 'bar'; |
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209 | Pmax = 0.4 * 'bar'; |
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210 | Qcmax = -1e6 * 'W'; |
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211 | Qcmin = -4e6 * 'W'; |
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212 | |
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213 | INITIAL |
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214 | # condenser |
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215 | col.cond.OutletL.T = 309.637705*'K'; |
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216 | col.cond.Level = 1* 'm'; |
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217 | col.cond.OutletL.z([1]) = [0.93]; |
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218 | |
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219 | # reboiler |
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220 | col.reb.OutletL.T = 350.460542 *'K'; |
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221 | col.reb.Level = 1 * 'm'; |
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222 | col.reb.OutletL.z([1]) = [0.26]; |
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223 | |
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224 | # column trays |
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225 | col.trays(1).OutletL.T = 311.172941 * 'K'; |
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226 | col.trays(2).OutletL.T = 317.117053 * 'K'; |
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227 | col.trays(3).OutletL.T = 322.578424 * 'K'; |
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228 | col.trays(4).OutletL.T = 327.515251 * 'K'; |
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229 | col.trays(5).OutletL.T = 331.108803 * 'K'; |
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230 | col.trays(6).OutletL.T = 334.854461 * 'K'; |
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231 | col.trays(7).OutletL.T = 338.976196 * 'K'; |
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232 | col.trays(8).OutletL.T = 343.713225 * 'K'; |
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233 | col.trays.Level = 1.2 * col.trays.hw; |
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234 | col.trays(1).OutletL.z([1]) = [0.83]; |
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235 | col.trays(2).OutletL.z([1]) = [0.74]; |
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236 | col.trays(3).OutletL.z([1]) = [0.67]; |
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237 | col.trays(4).OutletL.z([1]) = [0.60]; |
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238 | col.trays(5).OutletL.z([1]) = [0.58]; |
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239 | col.trays(6).OutletL.z([1]) = [0.53]; |
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240 | col.trays(7).OutletL.z([1]) = [0.48]; |
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241 | col.trays(8).OutletL.z([1]) = [0.40]; |
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242 | |
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243 | OPTIONS |
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244 | TimeStep = 0.2; |
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245 | TimeEnd = 10; |
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246 | TimeUnit = 'h'; |
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247 | NLASolver (File="sundials"); |
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248 | DAESolver (File="mebdf"); |
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249 | InitialFile="Sample_Distillation_kettle_cond_EffEmp1.rlt"; |
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250 | #Dynamic = false; |
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251 | end |
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252 | |
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253 | FlowSheet Sample_Distillation_kettle_cond_EffFund |
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254 | PARAMETERS |
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255 | PP as Plugin(Brief="Physical Properties", |
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256 | Type="PP", |
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257 | Components = [ "benzene", "toluene" ], |
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258 | LiquidModel = "UNIFAC", |
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259 | VapourModel = "SRK" |
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260 | ); |
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261 | NComp as Integer; |
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262 | iLK as Integer; |
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263 | iHK as Integer; |
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264 | |
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265 | Pmin as pressure (Brief="Minimum column temperature"); |
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266 | Pmax as pressure (Brief="Minimum column temperature"); |
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267 | Qcmin as heat_rate (Brief="Minimum Condenser Heat supplied"); |
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268 | Qcmax as heat_rate (Brief="Maximum Condenser Heat supplied"); |
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269 | Hmint as length (Brief="Minimum liquid level in top tank"); |
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270 | Hmaxt as length (Brief="Maximum liquid level in top tank"); |
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271 | Hminb as length (Brief="Minimum liquid level in reboiler"); |
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272 | Hmaxb as length (Brief="Maximum liquid level in reboiler"); |
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273 | Frmin as flow_mol (Brief="Minimum bottom flow rate"); |
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274 | Frmax as flow_mol (Brief="Maximum bottom flow rate"); |
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275 | Fcmin as flow_mol (Brief="Minimum reflux flow rate"); |
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276 | Fcmax as flow_mol (Brief="Maximum reflux flow rate"); |
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277 | |
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278 | VARIABLES |
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279 | Qc as energy_source (Brief="Heat rate removed from condenser"); |
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280 | Qr as energy_source (Brief="Heat rate supplied to reboiler"); |
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281 | Padc as Real (Brief="Dimensionless pressure"); |
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282 | Had_top as Real (Brief="Dimensionless condenser level"); |
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283 | Had_bot as Real (Brief="Dimensionless reboiler level"); |
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284 | DF as fraction (Brief="Distillation to feed ratio"); |
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285 | RR as Real (Brief="Reflux ratio"); |
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286 | |
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287 | SET |
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288 | NComp = PP.NumberOfComponents; |
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289 | |
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290 | DEVICES |
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291 | |
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292 | col as Distillation_kettle_cond_EffFund; |
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293 | feed as source; |
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294 | zero as stream; |
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295 | LCtop as PIDIncr; |
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296 | LCbot as PIDIncr; |
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297 | PCcond as PIDIncr; |
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298 | |
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299 | SET |
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300 | col.NTrays = 8; |
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301 | |
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302 | CONNECTIONS |
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303 | feed.Outlet to col.trays(4).Inlet; |
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304 | zero to col.reb.Inlet; |
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305 | zero to col.trays([1:3]).Inlet; |
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306 | zero to col.trays([5:col.NTrays]).Inlet; |
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307 | Qc.OutletQ to col.cond.InletQ; |
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308 | Qr.OutletQ to col.reb.InletQ; |
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309 | |
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310 | EQUATIONS |
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311 | |
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312 | "Pressure Controller Cond" |
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313 | PCcond.Parameters.tau = 0*'s'; |
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314 | PCcond.Parameters.tauSet = 0*'s'; |
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315 | PCcond.Parameters.alpha = 0.3; |
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316 | PCcond.Parameters.bias = 0.67; |
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317 | PCcond.Parameters.gamma = 1; |
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318 | PCcond.Parameters.beta = 1; |
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319 | PCcond.Options.action = 1; |
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320 | PCcond.Options.clip = 1; |
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321 | PCcond.Options.autoMan = 0; |
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322 | PCcond.Parameters.intTime = 60*'min'; |
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323 | PCcond.Parameters.gain = 0.1; |
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324 | PCcond.Parameters.derivTime = 10*'min'; |
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325 | PCcond.Ports.setPoint = (0.2 * 'bar' - Pmin)/(Pmax-Pmin); |
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326 | PCcond.Ports.input = Padc; |
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327 | Padc = (col.cond.OutletL.P-Pmin)/(Pmax-Pmin); |
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328 | Qc.OutletQ.Q = Qcmin+(Qcmax-Qcmin)*PCcond.Ports.output; |
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329 | |
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330 | "Ttop Level Controller" |
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331 | LCtop.Parameters.tau = 0*'s'; |
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332 | LCtop.Parameters.tauSet = 0*'s'; |
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333 | LCtop.Parameters.alpha = 0.3; |
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334 | LCtop.Parameters.bias = 0.5; |
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335 | LCtop.Parameters.gamma = 1; |
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336 | LCtop.Parameters.beta = 1; |
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337 | LCtop.Options.action = -1; |
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338 | LCtop.Options.clip = 1; |
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339 | LCtop.Options.autoMan = 0; |
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340 | LCtop.Parameters.intTime = 20*'min'; |
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341 | LCtop.Parameters.gain = 0.9; |
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342 | LCtop.Parameters.derivTime = 0*'s'; |
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343 | LCtop.Ports.setPoint = (1 * 'm' - Hmint)/(Hmaxt-Hmint); |
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344 | LCtop.Ports.input = Had_top; |
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345 | Had_top = (col.cond.Level-Hmint)/(Hmaxt-Hmint); |
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346 | col.sptop.Outlet2.F = Fcmin + (Fcmax-Fcmin) * LCtop.Ports.output; |
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347 | |
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348 | "Tbottom Level Controller" |
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349 | LCbot.Parameters.tau = 0*'s'; |
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350 | LCbot.Parameters.tauSet = 0*'s'; |
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351 | LCbot.Parameters.alpha = 0.3; |
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352 | LCbot.Parameters.bias = 0.5; |
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353 | LCbot.Parameters.gamma = 1; |
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354 | LCbot.Parameters.beta = 1; |
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355 | LCbot.Options.action = -1; |
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356 | LCbot.Options.clip = 1; |
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357 | LCbot.Options.autoMan = 0; |
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358 | LCbot.Parameters.intTime = 20*'min'; |
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359 | LCbot.Parameters.gain = 0.9; |
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360 | LCbot.Parameters.derivTime = 0*'s'; |
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361 | LCbot.Ports.setPoint = (1 * 'm' - Hminb)/(Hmaxb-Hminb); |
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362 | LCbot.Ports.input = Had_bot; |
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363 | Had_bot = (col.reb.Level-Hminb)/(Hmaxb-Hminb); |
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364 | col.reb.OutletL.F = Frmin + (Frmax-Frmin) * LCbot.Ports.output; |
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365 | |
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366 | DF = col.sptop.Outlet1.F / feed.Outlet.F; |
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367 | RR * (col.sptop.Outlet1.F + col.cond.OutletV.F) = col.sptop.Outlet2.F; |
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368 | |
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369 | SPECIFY |
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370 | feed.F = 200 * 'kmol/h'; |
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371 | feed.T = (60+273.15) * 'K'; |
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372 | feed.P = 1 * 'bar'; |
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373 | feed.Composition(1) = 0.6; |
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374 | feed.Composition(2)=0.4; |
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375 | |
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376 | zero.F = 0 * 'kmol/h'; |
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377 | zero.T = 300 * 'K'; |
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378 | zero.P = 1 * 'atm'; |
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379 | zero.z = 1/NComp; |
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380 | zero.v = 0; |
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381 | zero.h = 0 * 'J/mol'; |
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382 | |
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383 | RR = 1; |
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384 | |
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385 | col.trays.psi=1; |
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386 | col.trays.psi1=1; |
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387 | |
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388 | col.cond.OutletV.F = 0 * 'kmol/h'; |
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389 | Qr.OutletQ.Q = 1854471.14 * 'W'; |
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390 | col.pump1.dP = 0.000000001* 'kPa'; |
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391 | |
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392 | col.alfaTopo = 2; |
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393 | |
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394 | #*col.trays.Emv = [0.47806479 |
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395 | 0.53702951 |
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396 | 0.59429546 |
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397 | 0.63645948 |
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398 | 0.71892244 |
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399 | 0.7437489 |
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400 | 0.76615292 |
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401 | 0.79338953];*# |
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402 | |
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403 | #eff model |
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404 | col.trays.Dv = 3.2556e-6*'m^2/s'; |
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405 | col.trays.Dl = 6.1085e-9*'m^2/s'; |
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406 | col.trays(1).sigma=0.02649902*'N/m'; |
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407 | col.trays(2).sigma=0.02578077*'N/m'; |
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408 | col.trays(3).sigma=0.02510972*'N/m'; |
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409 | col.trays(4).sigma=0.02445816*'N/m'; |
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410 | col.trays(5).sigma=0.02402951*'N/m'; |
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411 | col.trays(6).sigma=0.02359190*'N/m'; |
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412 | col.trays(7).sigma=0.02311517*'N/m'; |
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413 | col.trays(8).sigma=0.02256425*'N/m'; |
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414 | |
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415 | SET |
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416 | |
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417 | #para modelo de eff |
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418 | #col.trays.z = 1.35*'m'; |
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419 | col.trays.d = 1.85*'m'; |
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420 | col.trays.fi= 0.1407; |
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421 | col.trays.Ts= 0.5*'m'; |
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422 | col.trays.Aa=2.2542*'m^2'; |
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423 | col.trays.dh=0.040*'m'; |
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424 | |
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425 | col.trays.V = 1.344 * 'm^3'; |
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426 | col.trays.Ah = 0.37824 * 'm^2'; |
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427 | col.trays.hw = 0.052 * 'm'; |
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428 | col.trays.lw = 1.264 * 'm'; |
---|
429 | col.trays.Q = 0 * 'kW'; |
---|
430 | col.trays.beta = 0.4; |
---|
431 | col.trays.alfa = 100; |
---|
432 | col.trays.Ap = 2.4711 * 'm^2'; |
---|
433 | |
---|
434 | col.cond.V = 4*1.344 * 'm^3'; |
---|
435 | col.cond.Across = 2.688 * 'm^2'; |
---|
436 | |
---|
437 | col.reb.V = 4*1.344 * 'm^3'; |
---|
438 | col.reb.Across = 2.688 * 'm^2'; |
---|
439 | |
---|
440 | # Controllers type |
---|
441 | PCcond.PID_Select = "Ideal_AW"; |
---|
442 | LCtop.PID_Select = "Ideal_AW"; |
---|
443 | LCbot.PID_Select = "Ideal_AW"; |
---|
444 | |
---|
445 | Frmin = 25 * 'kmol/h'; |
---|
446 | Frmax = 115 * 'kmol/h'; |
---|
447 | Fcmin = 90 * 'kmol/h'; |
---|
448 | Fcmax = 110 * 'kmol/h'; |
---|
449 | Hmint = 0.01 * 'm'; |
---|
450 | Hmaxt = 2.0 * 'm'; |
---|
451 | Hminb = 0.01 * 'm'; |
---|
452 | Hmaxb = 2.0 * 'm'; |
---|
453 | Pmin = 0.05 * 'bar'; |
---|
454 | Pmax = 0.4 * 'bar'; |
---|
455 | Qcmax = -1e6 * 'W'; |
---|
456 | Qcmin = -4e6 * 'W'; |
---|
457 | |
---|
458 | INITIAL |
---|
459 | # condenser |
---|
460 | col.cond.OutletL.T = 309.637705*'K'; |
---|
461 | col.cond.Level = 1* 'm'; |
---|
462 | col.cond.OutletL.z([1]) = [0.93]; |
---|
463 | |
---|
464 | # reboiler |
---|
465 | col.reb.OutletL.T = 350.460542 *'K'; |
---|
466 | col.reb.Level = 1 * 'm'; |
---|
467 | col.reb.OutletL.z([1]) = [0.26]; |
---|
468 | |
---|
469 | # column trays |
---|
470 | col.trays(1).OutletL.T = 311.172941 * 'K'; |
---|
471 | col.trays(2).OutletL.T = 317.117053 * 'K'; |
---|
472 | col.trays(3).OutletL.T = 322.578424 * 'K'; |
---|
473 | col.trays(4).OutletL.T = 327.515251 * 'K'; |
---|
474 | col.trays(5).OutletL.T = 331.108803 * 'K'; |
---|
475 | col.trays(6).OutletL.T = 334.854461 * 'K'; |
---|
476 | col.trays(7).OutletL.T = 338.976196 * 'K'; |
---|
477 | col.trays(8).OutletL.T = 343.713225 * 'K'; |
---|
478 | col.trays.Level = 1.2 * col.trays.hw; |
---|
479 | col.trays(1).OutletL.z([1]) = [0.83]; |
---|
480 | col.trays(2).OutletL.z([1]) = [0.74]; |
---|
481 | col.trays(3).OutletL.z([1]) = [0.67]; |
---|
482 | col.trays(4).OutletL.z([1]) = [0.60]; |
---|
483 | col.trays(5).OutletL.z([1]) = [0.58]; |
---|
484 | col.trays(6).OutletL.z([1]) = [0.53]; |
---|
485 | col.trays(7).OutletL.z([1]) = [0.48]; |
---|
486 | col.trays(8).OutletL.z([1]) = [0.40]; |
---|
487 | |
---|
488 | |
---|
489 | |
---|
490 | OPTIONS |
---|
491 | TimeStep = 1; |
---|
492 | TimeEnd = 30; |
---|
493 | TimeUnit = 'h'; |
---|
494 | NLASolver (File="sundials"); |
---|
495 | DAESolver (File="mebdf"); |
---|
496 | InitialFile="Sample_Distillation_kettle_cond_EffFund1.rlt"; |
---|
497 | #Dynamic = false; |
---|
498 | end |
---|
499 | |
---|
500 | FlowSheet Sample_Distillation_kettle_cond_EffEmp_Multi |
---|
501 | PARAMETERS |
---|
502 | PP as Plugin(Brief="Physical Properties", |
---|
503 | Type="PP", |
---|
504 | Components = [ "benzene", "toluene", "p-xylene" ], |
---|
505 | LiquidModel = "UNIFAC", |
---|
506 | VapourModel = "SRK" |
---|
507 | ); |
---|
508 | NComp as Integer; |
---|
509 | iLK as Integer; |
---|
510 | iHK as Integer; |
---|
511 | |
---|
512 | Pmin as pressure (Brief="Minimum column temperature"); |
---|
513 | Pmax as pressure (Brief="Minimum column temperature"); |
---|
514 | Qcmin as heat_rate (Brief="Minimum Condenser Heat supplied"); |
---|
515 | Qcmax as heat_rate (Brief="Maximum Condenser Heat supplied"); |
---|
516 | Hmint as length (Brief="Minimum liquid level in top tank"); |
---|
517 | Hmaxt as length (Brief="Maximum liquid level in top tank"); |
---|
518 | Hminb as length (Brief="Minimum liquid level in reboiler"); |
---|
519 | Hmaxb as length (Brief="Maximum liquid level in reboiler"); |
---|
520 | Frmin as flow_mol (Brief="Minimum bottom flow rate"); |
---|
521 | Frmax as flow_mol (Brief="Maximum bottom flow rate"); |
---|
522 | Fcmin as flow_mol (Brief="Minimum reflux flow rate"); |
---|
523 | Fcmax as flow_mol (Brief="Maximum reflux flow rate"); |
---|
524 | |
---|
525 | VARIABLES |
---|
526 | Qc as energy_source (Brief="Heat rate removed from condenser"); |
---|
527 | Qr as energy_source (Brief="Heat rate supplied to reboiler"); |
---|
528 | Padc as Real (Brief="Dimensionless pressure"); |
---|
529 | Had_top as Real (Brief="Dimensionless condenser level"); |
---|
530 | Had_bot as Real (Brief="Dimensionless reboiler level"); |
---|
531 | DF as fraction (Brief="Distillation to feed ratio"); |
---|
532 | RR as Real (Brief="Reflux ratio"); |
---|
533 | |
---|
534 | SET |
---|
535 | NComp = PP.NumberOfComponents; |
---|
536 | iLK=1; |
---|
537 | iHK=3; |
---|
538 | |
---|
539 | DEVICES |
---|
540 | |
---|
541 | col as Distillation_kettle_cond_EffEmp; |
---|
542 | feed as source; |
---|
543 | zero as stream; |
---|
544 | LCtop as PIDIncr; |
---|
545 | LCbot as PIDIncr; |
---|
546 | PCcond as PIDIncr; |
---|
547 | |
---|
548 | SET |
---|
549 | col.NTrays = 8; |
---|
550 | |
---|
551 | CONNECTIONS |
---|
552 | feed.Outlet to col.trays(4).Inlet; |
---|
553 | zero to col.reb.Inlet; |
---|
554 | zero to col.trays([1:3]).Inlet; |
---|
555 | zero to col.trays([5:col.NTrays]).Inlet; |
---|
556 | Qc.OutletQ to col.cond.InletQ; |
---|
557 | Qr.OutletQ to col.reb.InletQ; |
---|
558 | |
---|
559 | EQUATIONS |
---|
560 | |
---|
561 | "Pressure Controller Cond" |
---|
562 | PCcond.Parameters.tau = 0*'s'; |
---|
563 | PCcond.Parameters.tauSet = 0*'s'; |
---|
564 | PCcond.Parameters.alpha = 0.3; |
---|
565 | PCcond.Parameters.bias = 0.67; |
---|
566 | PCcond.Parameters.gamma = 1; |
---|
567 | PCcond.Parameters.beta = 1; |
---|
568 | PCcond.Options.action = 1; |
---|
569 | PCcond.Options.clip = 1; |
---|
570 | PCcond.Options.autoMan = 0; |
---|
571 | PCcond.Parameters.intTime = 60*'min'; |
---|
572 | PCcond.Parameters.gain = 0.1; |
---|
573 | PCcond.Parameters.derivTime = 10*'min'; |
---|
574 | PCcond.Ports.setPoint = (0.2 * 'bar' - Pmin)/(Pmax-Pmin); |
---|
575 | PCcond.Ports.input = Padc; |
---|
576 | Padc = (col.cond.OutletL.P-Pmin)/(Pmax-Pmin); |
---|
577 | Qc.OutletQ.Q = Qcmin+(Qcmax-Qcmin)*PCcond.Ports.output; |
---|
578 | |
---|
579 | "Ttop Level Controller" |
---|
580 | LCtop.Parameters.tau = 0*'s'; |
---|
581 | LCtop.Parameters.tauSet = 0*'s'; |
---|
582 | LCtop.Parameters.alpha = 0.3; |
---|
583 | LCtop.Parameters.bias = 0.5; |
---|
584 | LCtop.Parameters.gamma = 1; |
---|
585 | LCtop.Parameters.beta = 1; |
---|
586 | LCtop.Options.action = -1; |
---|
587 | LCtop.Options.clip = 1; |
---|
588 | LCtop.Options.autoMan = 0; |
---|
589 | LCtop.Parameters.intTime = 20*'min'; |
---|
590 | LCtop.Parameters.gain = 0.9; |
---|
591 | LCtop.Parameters.derivTime = 0*'s'; |
---|
592 | LCtop.Ports.setPoint = (1 * 'm' - Hmint)/(Hmaxt-Hmint); |
---|
593 | LCtop.Ports.input = Had_top; |
---|
594 | Had_top = (col.cond.Level-Hmint)/(Hmaxt-Hmint); |
---|
595 | col.sptop.Outlet2.F = Fcmin + (Fcmax-Fcmin) * LCtop.Ports.output; |
---|
596 | |
---|
597 | "Tbottom Level Controller" |
---|
598 | LCbot.Parameters.tau = 0*'s'; |
---|
599 | LCbot.Parameters.tauSet = 0*'s'; |
---|
600 | LCbot.Parameters.alpha = 0.3; |
---|
601 | LCbot.Parameters.bias = 0.5; |
---|
602 | LCbot.Parameters.gamma = 1; |
---|
603 | LCbot.Parameters.beta = 1; |
---|
604 | LCbot.Options.action = -1; |
---|
605 | LCbot.Options.clip = 1; |
---|
606 | LCbot.Options.autoMan = 0; |
---|
607 | LCbot.Parameters.intTime = 20*'min'; |
---|
608 | LCbot.Parameters.gain = 0.9; |
---|
609 | LCbot.Parameters.derivTime = 0*'s'; |
---|
610 | LCbot.Ports.setPoint = (1 * 'm' - Hminb)/(Hmaxb-Hminb); |
---|
611 | LCbot.Ports.input = Had_bot; |
---|
612 | Had_bot = (col.reb.Level-Hminb)/(Hmaxb-Hminb); |
---|
613 | col.reb.OutletL.F = Frmin + (Frmax-Frmin) * LCbot.Ports.output; |
---|
614 | |
---|
615 | DF = col.sptop.Outlet1.F / feed.Outlet.F; |
---|
616 | RR * (col.sptop.Outlet1.F + col.cond.OutletV.F) = col.sptop.Outlet2.F; |
---|
617 | |
---|
618 | SPECIFY |
---|
619 | feed.F = 200 * 'kmol/h'; |
---|
620 | feed.T = (60+273.15) * 'K'; |
---|
621 | feed.P = 1 * 'bar'; |
---|
622 | feed.Composition(1) = 0.5; |
---|
623 | feed.Composition(2)=0.4; |
---|
624 | feed.Composition(3)=0.1; |
---|
625 | |
---|
626 | |
---|
627 | zero.F = 0 * 'kmol/h'; |
---|
628 | zero.T = 300 * 'K'; |
---|
629 | zero.P = 1 * 'atm'; |
---|
630 | zero.z = 1/NComp; |
---|
631 | zero.v = 0; |
---|
632 | zero.h = 0 * 'J/mol'; |
---|
633 | |
---|
634 | RR = 1; |
---|
635 | |
---|
636 | col.cond.OutletV.F = 0 * 'kmol/h'; |
---|
637 | Qr.OutletQ.Q = 1854471.14* 'W'; |
---|
638 | col.pump1.dP = 0.0000000001* 'kPa'; |
---|
639 | |
---|
640 | col.alfaTopo = 2; |
---|
641 | |
---|
642 | #col.trays(1).Emv = 0.47806479; |
---|
643 | #col.trays(2).Emv = 0.53702951; |
---|
644 | #col.trays(3).Emv = 0.59429546; |
---|
645 | #col.trays(4).Emv = 0.63645948; |
---|
646 | #col.trays(5).Emv = 0.71892244; |
---|
647 | #col.trays(6).Emv = 0.7437489; |
---|
648 | #col.trays(7).Emv = 0.76615292; |
---|
649 | #col.trays(8).Emv = 0.79338953; |
---|
650 | |
---|
651 | #eff model |
---|
652 | col.trays.Dv = 3.2556e-6*'m^2/s'; |
---|
653 | col.trays.Dl = 6.1085e-9*'m^2/s'; |
---|
654 | col.trays(1).sigma=0.02649902*'N/m'; |
---|
655 | col.trays(2).sigma=0.02578077*'N/m'; |
---|
656 | col.trays(3).sigma=0.02510972*'N/m'; |
---|
657 | col.trays(4).sigma=0.02445816*'N/m'; |
---|
658 | col.trays(5).sigma=0.02402951*'N/m'; |
---|
659 | col.trays(6).sigma=0.02359190*'N/m'; |
---|
660 | col.trays(7).sigma=0.02311517*'N/m'; |
---|
661 | col.trays(8).sigma=0.02256425*'N/m'; |
---|
662 | |
---|
663 | SET |
---|
664 | |
---|
665 | #para modelo de eff |
---|
666 | col.trays.z = 1.35*'m'; |
---|
667 | col.trays.d = 1.85*'m'; |
---|
668 | col.trays.fi= 0.1407; |
---|
669 | col.trays.Ts= 0.5*'m'; |
---|
670 | col.trays.Aa=2.2542*'m^2'; |
---|
671 | |
---|
672 | col.trays.V = 1.344 * 'm^3'; |
---|
673 | col.trays.Ah = 0.37824 * 'm^2'; |
---|
674 | col.trays.hw = 0.052 * 'm'; |
---|
675 | col.trays.lw = 1.264 * 'm'; |
---|
676 | col.trays.Q = 0 * 'kW'; |
---|
677 | col.trays.beta = 0.4; |
---|
678 | col.trays.alfa = 18; |
---|
679 | col.trays.Ap = 2.4711 * 'm^2'; |
---|
680 | |
---|
681 | col.cond.V = 4*1.344 * 'm^3'; |
---|
682 | col.cond.Across = 2.688 * 'm^2'; |
---|
683 | |
---|
684 | col.reb.V = 4*1.344 * 'm^3'; |
---|
685 | col.reb.Across = 2.688 * 'm^2'; |
---|
686 | |
---|
687 | # Controllers type |
---|
688 | PCcond.PID_Select = "Ideal_AW"; |
---|
689 | LCtop.PID_Select = "Ideal_AW"; |
---|
690 | LCbot.PID_Select = "Ideal_AW"; |
---|
691 | |
---|
692 | Frmin = 25 * 'kmol/h'; |
---|
693 | Frmax = 115 * 'kmol/h'; |
---|
694 | Fcmin = 90 * 'kmol/h'; |
---|
695 | Fcmax = 110 * 'kmol/h'; |
---|
696 | Hmint = 0.01 * 'm'; |
---|
697 | Hmaxt = 2.0 * 'm'; |
---|
698 | Hminb = 0.01 * 'm'; |
---|
699 | Hmaxb = 2.0 * 'm'; |
---|
700 | Pmin = 0.05 * 'bar'; |
---|
701 | Pmax = 0.4 * 'bar'; |
---|
702 | Qcmax = -1e6 * 'W'; |
---|
703 | Qcmin = -4e6 * 'W'; |
---|
704 | |
---|
705 | INITIAL |
---|
706 | # condenser |
---|
707 | col.cond.OutletL.T = 310.87*'K'; |
---|
708 | col.cond.Level = 1* 'm'; |
---|
709 | col.cond.OutletL.z([1 2]) = [0.86 0.13]; |
---|
710 | |
---|
711 | # reboiler |
---|
712 | col.reb.OutletL.T = 358.45 *'K'; |
---|
713 | col.reb.Level = 1 * 'm'; |
---|
714 | col.reb.OutletL.z([1 2]) = [0.135 0.66]; |
---|
715 | |
---|
716 | # column trays |
---|
717 | col.trays(1).OutletL.T = 312.625461 * 'K'; |
---|
718 | col.trays(2).OutletL.T = 318.954211* 'K'; |
---|
719 | col.trays(3).OutletL.T = 324.962929 * 'K'; |
---|
720 | col.trays(4).OutletL.T = 331.041158 * 'K'; |
---|
721 | col.trays(5).OutletL.T = 335.259862 * 'K'; |
---|
722 | col.trays(6).OutletL.T = 339.7895 * 'K'; |
---|
723 | col.trays(7).OutletL.T = 344.823955 * 'K'; |
---|
724 | col.trays(8).OutletL.T = 350.486538 * 'K'; |
---|
725 | |
---|
726 | col.trays.Level = 1.2 * col.trays.hw; |
---|
727 | col.trays(1).OutletL.z([1 2]) = [0.77 0.21]; |
---|
728 | col.trays(2).OutletL.z([1 2]) = [0.67 0.30]; |
---|
729 | col.trays(3).OutletL.z([1 2]) = [0.58 0.38]; |
---|
730 | col.trays(4).OutletL.z([1 2]) = [0.49 0.42]; |
---|
731 | col.trays(5).OutletL.z([1 2]) = [0.45 0.45]; |
---|
732 | col.trays(6).OutletL.z([1 2]) = [0.41 0.50]; |
---|
733 | col.trays(7).OutletL.z([1 2]) = [0.33 0.57]; |
---|
734 | col.trays(8).OutletL.z([1 2]) = [0.24 0.63]; |
---|
735 | |
---|
736 | OPTIONS |
---|
737 | TimeStep = 1; |
---|
738 | TimeEnd = 30; |
---|
739 | TimeUnit = 'h'; |
---|
740 | NLASolver (File="sundials"); |
---|
741 | DAESolver (File="mebdf"); |
---|
742 | #GuessFile="Sample_Distillation_kettle_cond_EffEmp_sem_eff.rlt"; |
---|
743 | InitialFile="Sample_Distillation_kettle_cond_EffEmp_Multi1.rlt"; |
---|
744 | #Dynamic = false; |
---|
745 | end |
---|
746 | |
---|
747 | FlowSheet Sample_Distillation_kettle_cond_EffFund_Dual |
---|
748 | PARAMETERS |
---|
749 | PP as Plugin(Brief="Physical Properties", |
---|
750 | Type="PP", |
---|
751 | Components = [ "propane", "propylene" ], |
---|
752 | LiquidModel = "PR", |
---|
753 | VapourModel = "PR" |
---|
754 | ); |
---|
755 | NComp as Integer; |
---|
756 | iLK as Integer; |
---|
757 | iHK as Integer; |
---|
758 | |
---|
759 | Pcmin as pressure (Brief="Minimum column temperature"); |
---|
760 | Pcmax as pressure (Brief="Minimum column temperature"); |
---|
761 | Qcmin as heat_rate (Brief="Minimum Condenser Heat supplied"); |
---|
762 | Qcmax as heat_rate (Brief="Maximum Condenser Heat supplied"); |
---|
763 | Hmint as length (Brief="Minimum liquid level in top tank"); |
---|
764 | Hmaxt as length (Brief="Maximum liquid level in top tank"); |
---|
765 | Hminb as length (Brief="Minimum liquid level in reboiler"); |
---|
766 | Hmaxb as length (Brief="Maximum liquid level in reboiler"); |
---|
767 | Frmin as flow_mol (Brief="Minimum bottom flow rate"); |
---|
768 | Frmax as flow_mol (Brief="Maximum bottom flow rate"); |
---|
769 | Fcmin as flow_mol (Brief="Minimum reflux flow rate"); |
---|
770 | Fcmax as flow_mol (Brief="Maximum reflux flow rate"); |
---|
771 | |
---|
772 | VARIABLES |
---|
773 | Qc as energy_source (Brief="Heat rate removed from condenser"); |
---|
774 | Qr as energy_source (Brief="Heat rate supplied to reboiler"); |
---|
775 | Padc as Real (Brief="Dimensionless pressure"); |
---|
776 | Had_top as Real (Brief="Dimensionless condenser level"); |
---|
777 | Had_bot as Real (Brief="Dimensionless reboiler level"); |
---|
778 | DF as fraction (Brief="Distillation to feed ratio"); |
---|
779 | RR as Real (Brief="Reflux ratio"); |
---|
780 | |
---|
781 | SET |
---|
782 | NComp = PP.NumberOfComponents; |
---|
783 | |
---|
784 | DEVICES |
---|
785 | |
---|
786 | col as Distillation_kettle_cond_EffFund; |
---|
787 | feed as source; |
---|
788 | zero as stream; |
---|
789 | LCtop as PIDIncr; |
---|
790 | LCbot as PIDIncr; |
---|
791 | PCcond as PIDIncr; |
---|
792 | |
---|
793 | |
---|
794 | SET |
---|
795 | col.NTrays = 8; |
---|
796 | col.trays.tray_type = "Dualflow"; |
---|
797 | |
---|
798 | CONNECTIONS |
---|
799 | feed.Outlet to col.trays(4).Inlet; |
---|
800 | zero to col.reb.Inlet; |
---|
801 | zero to col.trays([1:3]).Inlet; |
---|
802 | zero to col.trays([5:col.NTrays]).Inlet; |
---|
803 | Qc.OutletQ to col.cond.InletQ; |
---|
804 | Qr.OutletQ to col.reb.InletQ; |
---|
805 | |
---|
806 | EQUATIONS |
---|
807 | |
---|
808 | "Pressure Controller Cond" |
---|
809 | PCcond.Parameters.tau = 0*'s'; |
---|
810 | PCcond.Parameters.tauSet = 0*'s'; |
---|
811 | PCcond.Parameters.alpha = 0.3; |
---|
812 | PCcond.Parameters.bias = 0.67; |
---|
813 | PCcond.Parameters.gamma = 1; |
---|
814 | PCcond.Parameters.beta = 1; |
---|
815 | PCcond.Options.action = 1; |
---|
816 | PCcond.Options.clip = 1; |
---|
817 | PCcond.Options.autoMan = 0; |
---|
818 | PCcond.Parameters.intTime = 60*'s'; |
---|
819 | PCcond.Parameters.gain = 0.6; |
---|
820 | PCcond.Parameters.derivTime = 1*'s'; |
---|
821 | PCcond.Ports.setPoint = (10 * 'bar' - Pcmin)/(Pcmax-Pcmin); |
---|
822 | PCcond.Ports.input = Padc; |
---|
823 | Padc = (col.cond.OutletL.P-Pcmin)/(Pcmax-Pcmin); |
---|
824 | Qc.OutletQ.Q = Qcmin+(Qcmax-Qcmin)*PCcond.Ports.output; |
---|
825 | |
---|
826 | "Ttop Level Controller" |
---|
827 | LCtop.Parameters.tau = 0*'s'; |
---|
828 | LCtop.Parameters.tauSet = 0*'s'; |
---|
829 | LCtop.Parameters.alpha = 0.3; |
---|
830 | LCtop.Parameters.bias = 0.5; |
---|
831 | LCtop.Parameters.gamma = 1; |
---|
832 | LCtop.Parameters.beta = 1; |
---|
833 | LCtop.Options.action = -1; |
---|
834 | LCtop.Options.clip = 1; |
---|
835 | LCtop.Options.autoMan = 0; |
---|
836 | LCtop.Parameters.intTime = 20*'min'; |
---|
837 | LCtop.Parameters.gain = 0.9; |
---|
838 | LCtop.Parameters.derivTime = 0*'s'; |
---|
839 | LCtop.Ports.setPoint = (2 * 'm' - Hmint)/(Hmaxt-Hmint); |
---|
840 | LCtop.Ports.input = Had_top; |
---|
841 | Had_top = (col.cond.Level-Hmint)/(Hmaxt-Hmint); |
---|
842 | col.sptop.Outlet2.F = Fcmin + (Fcmax-Fcmin) * LCtop.Ports.output; |
---|
843 | |
---|
844 | "Tbottom Level Controller" |
---|
845 | LCbot.Parameters.tau = 0*'s'; |
---|
846 | LCbot.Parameters.tauSet = 0*'s'; |
---|
847 | LCbot.Parameters.alpha = 0.3; |
---|
848 | LCbot.Parameters.bias = 0.5; |
---|
849 | LCbot.Parameters.gamma = 1; |
---|
850 | LCbot.Parameters.beta = 1; |
---|
851 | LCbot.Options.action = -1; |
---|
852 | LCbot.Options.clip = 1; |
---|
853 | LCbot.Options.autoMan = 0; |
---|
854 | LCbot.Parameters.intTime = 20*'min'; |
---|
855 | LCbot.Parameters.gain = 0.9; |
---|
856 | LCbot.Parameters.derivTime = 0*'s'; |
---|
857 | LCbot.Ports.setPoint = (2 * 'm' - Hminb)/(Hmaxb-Hminb); |
---|
858 | LCbot.Ports.input = Had_bot; |
---|
859 | Had_bot = (col.reb.Level-Hminb)/(Hmaxb-Hminb); |
---|
860 | col.reb.OutletL.F = Frmin + (Frmax-Frmin) * LCbot.Ports.output; |
---|
861 | |
---|
862 | DF = col.sptop.Outlet1.F / feed.Outlet.F; |
---|
863 | RR * (col.sptop.Outlet1.F + col.cond.OutletV.F) = col.sptop.Outlet2.F; |
---|
864 | |
---|
865 | "Correction factor of liquid entrainment in dualflow trays" |
---|
866 | col.trays.psi=1.9771*col.trays.ff-1.4857; |
---|
867 | col.trays.psi1=-0.9333*col.trays.ff+0.94; |
---|
868 | |
---|
869 | SPECIFY |
---|
870 | feed.F = 800 * 'kmol/h'; |
---|
871 | feed.T = (33.1+273.15) * 'K'; |
---|
872 | feed.P = 11.25 * 'bar'; |
---|
873 | feed.Composition(1) = 0.1; |
---|
874 | feed.Composition(2)=0.9; |
---|
875 | |
---|
876 | zero.F = 0 * 'kmol/h'; |
---|
877 | zero.T = 300 * 'K'; |
---|
878 | zero.P = 1 * 'atm'; |
---|
879 | zero.z = 1/NComp; |
---|
880 | zero.v = 0; |
---|
881 | zero.h = 0 * 'J/mol'; |
---|
882 | |
---|
883 | RR = 15; |
---|
884 | |
---|
885 | col.cond.OutletV.F = 0 * 'kmol/h'; |
---|
886 | Qr.OutletQ.Q = 27582461.8 * 'W'; |
---|
887 | col.pump1.dP = 0.0000000001* 'kPa'; |
---|
888 | |
---|
889 | |
---|
890 | col.alfaTopo = 2; |
---|
891 | |
---|
892 | #col.trays.Emv = 0.75; |
---|
893 | |
---|
894 | #para modelo de eff |
---|
895 | col.trays.Dv = 4.64e-7*'m^2/s'; |
---|
896 | col.trays.Dl = 1.3e-8*'m^2/s'; |
---|
897 | col.trays.sigma=[0.00762423 |
---|
898 | 0.00750252 |
---|
899 | 0.00738331 |
---|
900 | 0.00726649 |
---|
901 | 0.00715206 |
---|
902 | 0.00703969 |
---|
903 | 0.00692930 |
---|
904 | 0.00682079]*'N/m'; |
---|
905 | |
---|
906 | SET |
---|
907 | |
---|
908 | #para modelo de eff |
---|
909 | #col.trays.z = 1.35*'m'; |
---|
910 | col.trays.d = 4.4*'m'; |
---|
911 | col.trays.fi= 0.2074; |
---|
912 | col.trays.Ts= 0.4*'m'; |
---|
913 | col.trays.T= 0.0025*'m'; |
---|
914 | col.trays.Aa=15.205*'m^2'; |
---|
915 | col.trays.dh=0.009*'m'; |
---|
916 | |
---|
917 | col.trays.V = 6.08 * 'm^3'; |
---|
918 | col.trays.Ah = 3.15447 * 'm^2'; |
---|
919 | col.trays.hw = 0.052 * 'm'; |
---|
920 | col.trays.lw = 1.264 * 'm'; |
---|
921 | col.trays.Q = 0 * 'kW'; |
---|
922 | col.trays.beta = 0.25;#fluxo de liquido |
---|
923 | col.trays.alfa =80;#parametro de ajuste para queda de pressão |
---|
924 | col.trays.Ap = 15.205 * 'm^2'; |
---|
925 | |
---|
926 | col.cond.V = 10*6.08 * 'm^3'; |
---|
927 | col.cond.Across = 18 * 'm^2'; |
---|
928 | |
---|
929 | col.reb.V = 10*6.08 * 'm^3'; |
---|
930 | col.reb.Across = 20 * 'm^2'; |
---|
931 | |
---|
932 | # Controllers type |
---|
933 | PCcond.PID_Select = "Ideal_AW"; |
---|
934 | LCtop.PID_Select = "Ideal_AW"; |
---|
935 | LCbot.PID_Select = "Ideal_AW"; |
---|
936 | |
---|
937 | Frmin = 120 * 'kmol/h'; |
---|
938 | Frmax = 400 * 'kmol/h'; |
---|
939 | Fcmin = 6800 * 'kmol/h'; |
---|
940 | Fcmax = 7500 * 'kmol/h'; |
---|
941 | Hmint = 0.01 * 'm'; |
---|
942 | Hmaxt = 2.5 * 'm'; |
---|
943 | Hminb = 0.01 * 'm'; |
---|
944 | Hmaxb = 2.5 * 'm'; |
---|
945 | Pcmin = 8 * 'bar'; |
---|
946 | Pcmax = 12 * 'bar'; |
---|
947 | Qcmax = -15e6 * 'W'; |
---|
948 | Qcmin = -30e6 * 'W'; |
---|
949 | |
---|
950 | |
---|
951 | INITIAL |
---|
952 | # condenser |
---|
953 | col.cond.OutletL.T = 292.473621*'K'; |
---|
954 | col.cond.Level = 2* 'm'; |
---|
955 | col.cond.OutletL.z([1]) = [0.0842132]; |
---|
956 | |
---|
957 | # reboiler |
---|
958 | col.reb.OutletL.T = 299.8068 *'K'; |
---|
959 | col.reb.Level = 1 * 'm'; |
---|
960 | col.reb.OutletL.z([1]) = [0.1236802]; |
---|
961 | |
---|
962 | # column trays |
---|
963 | col.trays.OutletL.T = [292.497341 |
---|
964 | 293.463727 |
---|
965 | 294.413253 |
---|
966 | 295.346614 |
---|
967 | 296.263841 |
---|
968 | 297.167167 |
---|
969 | 298.05727 |
---|
970 | 298.934812] * 'K'; |
---|
971 | |
---|
972 | col.trays.Level = 1 * col.trays.hw; |
---|
973 | col.trays.OutletL.z([1]) = [0.08822571 |
---|
974 | 0.09221042 |
---|
975 | 0.09616891 |
---|
976 | 0.10010309 |
---|
977 | 0.1038177 |
---|
978 | 0.10781901 |
---|
979 | 0.11213108 |
---|
980 | 0.1167803]; |
---|
981 | |
---|
982 | |
---|
983 | OPTIONS |
---|
984 | TimeStep = 100; |
---|
985 | TimeEnd = 3600; |
---|
986 | TimeUnit = 's'; |
---|
987 | NLASolver (File="sundials"); |
---|
988 | DAESolver (File="mebdf", RelativeAccuracy=1e-4, AbsoluteAccuracy=1e-4); |
---|
989 | InitialFile="Sample_Distillation_kettle_cond_EffFund_Dual1.rlt"; |
---|
990 | #Dynamic = false; |
---|
991 | end |
---|