[331] | 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: Núbia do Carmo Ferreira |
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| 17 | * $Id: column.mso 210 2007-03-15 12:52:28Z arge $ |
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| 18 | *---------------------------------------------------------------------*# |
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| 19 | |
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| 20 | using "stage_separators/column"; |
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| 21 | |
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| 22 | #*---------------------------------------------------------------------- |
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| 23 | * Model of cost of a distillation column containing: |
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| 24 | * - NTrays like tray; |
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| 25 | * - a kettle reboiler; |
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| 26 | * - dymamic condenser; |
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| 27 | * - a splitter which separate reflux and distillate; |
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| 28 | * - a pump in reflux stream; |
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| 29 | * |
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| 30 | * - This model is valid if: |
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| 31 | * 0.91m < Di < 7.32m |
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| 32 | * 17.57m < Lt < 51.82m |
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| 33 | * 0.6m < D < 4.8m |
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| 34 | * |
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| 35 | *---------------------------------------------------------------------*# |
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| 36 | |
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| 37 | Model Distillation_kettle_cond_cost as Distillation_kettle_cond |
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| 38 | ATTRIBUTES |
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| 39 | Pallete = true; |
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| 40 | Icon = "icon/DistillationKettleCond"; |
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| 41 | Brief = "Model of a distillation column with dynamic condenser and dynamic reboiler."; |
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| 42 | Info = |
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[354] | 43 | "== Specify == |
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| 44 | * the feed stream of each tray (Inlet); |
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| 45 | * the Murphree eficiency for each tray Emv; |
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| 46 | * the pump pressure difference; |
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| 47 | * the heat supllied in reboiler and condenser; |
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| 48 | * the condenser vapor outlet flow (OutletV.F); |
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| 49 | * the reboiler liquid outlet flow (OutletL.F); |
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| 50 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
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| 51 | * all necessary dimensions and materials for cost evaluation |
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[331] | 52 | |
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[354] | 53 | == Initial Conditions == |
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| 54 | * the trays temperature (OutletL.T); |
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| 55 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
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| 56 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
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[331] | 57 | |
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[354] | 58 | * the condenser temperature (OutletL.T); |
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| 59 | * the condenser liquid level (Level); |
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| 60 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
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[331] | 61 | |
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[354] | 62 | * the reboiler temperature (OutletL.T); |
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| 63 | * the reboiler liquid level (Level); |
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| 64 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
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| 65 | "; |
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[331] | 66 | |
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| 67 | PARAMETERS |
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| 68 | Material as Switcher (Valid = ["Stainless steel 316", "Stainless steel 304", "Carpenter 20 CB_3", "Nickel 200", "Monel 400", "Inconel 600", "Incoloy 825", "Titanium"], |
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| 69 | Default = "Stainless steel 304"); |
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| 70 | Tray_Type as Switcher (Valid = ["Valve", "Grid", "Bubble cap", "Sieve"], Default= "Valve"); |
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| 71 | Tray_Material as Switcher (Valid = ["Stainless steel 304", "Stainless steel 316", "Carpenter 20 CB_3", "Monel"], Default= "Stainless steel 304"); |
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| 72 | Cost(12,4) as Real; |
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| 73 | Di as length (Brief="Internal Diameter for the hoof of the towers"); |
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| 74 | Lt as length (Brief="Hoof Length"); |
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| 75 | Tb as length (Brief="Bottom thickness"); |
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| 76 | Tp as length (Brief="Wall thickness"); |
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| 77 | D as length (Brief="Tower diameter"); |
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| 78 | dens_mass_material as dens_mass (Brief = "Mass Density of the Material"); |
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| 79 | Pi as constant (Brief="Pi Number",Default=3.14159265); |
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| 80 | |
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| 81 | VARIABLES |
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| 82 | Cs as currency (Brief="Total Cost of the hoof of the towers"); |
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| 83 | Cb as currency (Brief="Base Cost for the hoof of the distillation tower"); |
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| 84 | Fm as positive (Brief="Cost Factor based on the construction material"); |
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| 85 | Cpl as currency (Brief="Cost for stairs and platform"); |
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| 86 | Cbt as currency (Brief="Base Cost for the trays of the tower"); |
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| 87 | Ftm as positive (Brief="Cost Factor based on the construction material of the trays"); |
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| 88 | Fnt as positive (Brief="Cost Factor based on the number of trays in the tower"); |
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| 89 | Ftt as positive (Brief="Cost Factor based on the type of the tray"); |
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| 90 | Ct as currency (Brief="Total Cost"); |
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| 91 | Ws as mass (Brief="Equipment Weight"); |
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| 92 | |
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| 93 | EQUATIONS |
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| 94 | |
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| 95 | "Total Cost of the hoof of the towers" |
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| 96 | Cs = Cb*Fm; |
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| 97 | |
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| 98 | "Base Cost for the hoof of the distillation tower" |
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| 99 | Cb = 'US$'*exp(Cost(1,1) + Cost(1,2)*ln(Ws/'kg') + Cost(1,3)*(ln(Ws/'kg'))^2 + Cost(1,4)*(Lt/Di)*(ln(Tb/Tp))); |
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| 100 | |
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| 101 | "Cost for stairs and platform" |
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| 102 | Cpl = 'US$'*Cost(2,1)*(Di^0.63316)/'m^0.63316'*(Lt^0.80161)/'m^0.80161'; |
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| 103 | |
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| 104 | "Base Cost for the trays of the tower" |
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| 105 | Cbt = 'US$'*Cost(6,1)*exp(Cost(6,2)*D/'m'); |
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| 106 | |
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| 107 | switch Tray_Material |
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| 108 | case "Stainless steel 304": |
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| 109 | |
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| 110 | "Cost Factor based on the construction material of the trays" |
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| 111 | Ftm = Cost(7,1) + Cost(7,2)*D/'m'; |
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| 112 | |
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| 113 | case "Stainless steel 316": |
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| 114 | |
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| 115 | "Cost Factor based on the construction material of the trays" |
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| 116 | Ftm = Cost(8,1) + Cost(8,2)*D/'m'; |
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| 117 | |
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| 118 | case "Carpenter 20 CB_3": |
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| 119 | |
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| 120 | "Cost Factor based on the construction material of the trays" |
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| 121 | Ftm = Cost(9,1) + Cost(9,2)*D/'m'; |
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| 122 | |
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| 123 | case "Monel": |
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| 124 | |
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| 125 | "Cost Factor based on the construction material of the trays" |
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| 126 | Ftm = Cost(10,1) + Cost(10,2)*D/'m'; |
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| 127 | |
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| 128 | end |
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| 129 | |
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| 130 | "Cost Factor based on the number of trays in the tower" |
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| 131 | Fnt = Cost(11,1)/(Cost(11,2))^NTrays; |
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| 132 | |
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| 133 | "Total Cost" |
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| 134 | Ct = Cb*Fm + NTrays*Cbt*Ftm*Ftt*Fnt + Cpl; |
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| 135 | |
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| 136 | "Cost Factor based on the type of the tray" |
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| 137 | Ftt = Cost(12,1); |
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| 138 | |
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| 139 | "Cost Factor based on the construction material" |
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| 140 | Fm = Cost(5,1); |
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| 141 | |
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| 142 | "Equipment Weight" |
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| 143 | Ws = dens_mass_material*Di*(Lt + 0.8116*Di)*Tp*Pi; |
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| 144 | end |
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| 145 | |
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| 146 | #* ------------------------------------------------------------------- |
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| 147 | * Distillation Column cost model with: |
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| 148 | * |
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| 149 | * - NTrays like tray; |
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| 150 | * - a vessel in the bottom of column; |
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| 151 | * - a splitter who separate the bottom product and the stream to reboiler; |
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| 152 | * - steady state reboiler (thermosyphon); |
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| 153 | * - a steady state condenser with subcooling; |
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| 154 | * - a vessel drum (layed cilinder); |
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| 155 | * - a splitter which separate reflux and distillate; |
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| 156 | * - a pump in reflux stream. |
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| 157 | * |
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| 158 | * ------------------------------------------------------------------*# |
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| 159 | Model Distillation_thermosyphon_subcooling_cost as Distillation_thermosyphon_subcooling |
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| 160 | ATTRIBUTES |
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| 161 | Pallete = true; |
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| 162 | Icon = "icon/DistillationThermosyphonSubcooling"; |
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| 163 | Brief = "Model of a distillation column with steady condenser and steady reboiler."; |
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| 164 | Info = |
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[354] | 165 | "== Specify == |
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| 166 | * the feed stream of each tray (Inlet); |
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| 167 | * the Murphree eficiency for each tray Emv; |
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| 168 | * the pump head; |
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| 169 | * the condenser pressure drop; |
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| 170 | * the heat supllied in top and bottom tanks; |
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| 171 | * the heat supllied in condenser and reboiler; |
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| 172 | * the Outlet1 flow in the bottom splitter (spbottom.Outlet1.F) that corresponds to the bottom product; |
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| 173 | * both top splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
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| 174 | * all necessary dimensions and materials for cost evaluation |
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[331] | 175 | |
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[354] | 176 | == Initial Conditions == |
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| 177 | * the trays temperature (OutletL.T); |
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| 178 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
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| 179 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
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[331] | 180 | |
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[354] | 181 | * the top tank temperature (OutletL.T); |
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| 182 | * the top tank liquid level (Level); |
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| 183 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
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[331] | 184 | |
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[354] | 185 | * the bottom tank temperature (OutletL.T); |
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| 186 | * the bottom tank liquid level (Level); |
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| 187 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
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| 188 | "; |
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[331] | 189 | |
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| 190 | PARAMETERS |
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| 191 | Material as Switcher (Valid = ["Stainless steel 316", "Stainless steel 304", "Carpenter 20 CB_3", "Nickel 200", "Monel 400", "Inconel 600", "Incoloy 825", "Titanium"], |
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| 192 | Default = "Stainless steel 304"); |
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| 193 | Tray_Type as Switcher (Valid = ["Valve", "Grid", "Bubble cap", "Sieve"], Default= "Valve"); |
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| 194 | Tray_Material as Switcher (Valid = ["Stainless steel 304", "Stainless steel 316", "Carpenter 20 CB_3", "Monel"], Default= "Stainless steel 304"); |
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| 195 | Cost(12,4) as Real; |
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| 196 | |
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| 197 | Di as length (Brief="Internal Diameter for the hoof of the towers"); |
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| 198 | Lt as length (Brief="Hoof Length"); |
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| 199 | Tb as length (Brief="Bottom thickness"); |
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| 200 | Tp as length (Brief="Wall thickness"); |
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| 201 | D as length (Brief="Tower diameter"); |
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| 202 | dens_mass_material as dens_mass (Brief = "Mass Density of the Material"); |
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| 203 | Pi as constant (Brief="Pi Number",Default=3.14159265); |
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| 204 | |
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| 205 | VARIABLES |
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| 206 | Cs as currency (Brief="Total Cost of the hoof of the towers"); |
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| 207 | Cb as currency (Brief="Base Cost for the hoof of the distillation tower"); |
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| 208 | Fm as positive (Brief="Cost Factor based on the construction material"); |
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| 209 | Cpl as currency (Brief="Cost for stairs and platform"); |
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| 210 | Cbt as currency (Brief="Base Cost for the trays of the tower"); |
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| 211 | Ftm as positive (Brief="Cost Factor based on the construction material of the trays"); |
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| 212 | Fnt as positive (Brief="Cost Factor based on the number of trays in the tower"); |
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| 213 | Ftt as positive (Brief="Cost Factor based on the type of the tray"); |
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| 214 | Ct as currency (Brief="Total Cost"); |
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| 215 | Ws as mass (Brief="Equipment Weight"); |
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| 216 | |
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| 217 | EQUATIONS |
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| 218 | |
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| 219 | "Total Cost of the hoof of the towers" |
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| 220 | Cs = Cb*Fm; |
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| 221 | |
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| 222 | "Base Cost for the hoof of the distillation tower" |
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| 223 | Cb = 'US$'*exp(Cost(1,1) + Cost(1,2)*ln(Ws/'kg') + Cost(1,3)*(ln(Ws/'kg'))^2 + Cost(1,4)*(Lt/Di)*(ln(Tb/Tp))); |
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| 224 | |
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| 225 | "Cost for stairs and platform" |
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| 226 | Cpl = 'US$'*Cost(2,1)*(Di^0.63316)/'m^0.63316'*(Lt^0.80161)/'m^0.80161'; |
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| 227 | |
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| 228 | "Base Cost for the trays of the tower" |
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| 229 | Cbt = 'US$'*Cost(6,1)*exp(Cost(6,2)*D/'m'); |
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| 230 | |
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| 231 | switch Tray_Material |
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| 232 | case "Stainless steel 304": |
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| 233 | |
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| 234 | "Cost Factor based on the construction material of the trays" |
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| 235 | Ftm = Cost(7,1) + Cost(7,2)*D/'m'; |
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| 236 | |
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| 237 | case "Stainless steel 316": |
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| 238 | |
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| 239 | "Cost Factor based on the construction material of the trays" |
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| 240 | Ftm = Cost(8,1) + Cost(8,2)*D/'m'; |
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| 241 | |
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| 242 | case "Carpenter 20 CB_3": |
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| 243 | |
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| 244 | "Cost Factor based on the construction material of the trays" |
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| 245 | Ftm = Cost(9,1) + Cost(9,2)*D/'m'; |
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| 246 | |
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| 247 | case "Monel": |
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| 248 | |
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| 249 | "Cost Factor based on the construction material of the trays" |
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| 250 | Ftm = Cost(10,1) + Cost(10,2)*D/'m'; |
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| 251 | |
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| 252 | end |
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| 253 | |
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| 254 | "Cost Factor based on the number of trays in the tower" |
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| 255 | Fnt = Cost(11,1)/(Cost(11,2))^NTrays; |
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| 256 | |
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| 257 | "Total Cost" |
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| 258 | Ct = Cb*Fm + NTrays*Cbt*Ftm*Ftt*Fnt + Cpl; |
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| 259 | |
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| 260 | "Cost Factor based on the type of the tray" |
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| 261 | Ftt = Cost(12,1); |
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| 262 | |
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| 263 | "Cost Factor based on the construction material" |
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| 264 | Fm = Cost(5,1); |
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| 265 | |
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| 266 | "Equipment Weight" |
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| 267 | Ws = dens_mass_material*Di*(Lt + 0.8116*Di)*Tp*Pi; |
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| 268 | end |
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| 269 | |
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| 270 | #* ------------------------------------------------------------------- |
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| 271 | * Distillation Column model with: |
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| 272 | * |
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| 273 | * - NTrays like tray; |
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| 274 | * - a vessel in the bottom of column; |
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| 275 | * - a splitter who separate the bottom product and the stream to reboiler; |
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| 276 | * - steady state reboiler (thermosyphon); |
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| 277 | * - a dynamic condenser without subcooling; |
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| 278 | * - a splitter which separate reflux and distillate; |
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| 279 | * - a pump in reflux stream. |
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| 280 | * |
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| 281 | * ------------------------------------------------------------------*# |
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| 282 | Model Distillation_thermosyphon_cond_cost as Distillation_thermosyphon_cond |
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| 283 | ATTRIBUTES |
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| 284 | Pallete = true; |
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| 285 | Icon = "icon/DistillationThermosyphonCond"; |
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| 286 | Brief = "Model of a distillation column with dynamic condenser and steady reboiler."; |
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| 287 | Info = |
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[354] | 288 | "== Specify == |
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| 289 | * the feed stream of each tray (Inlet); |
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| 290 | * the Murphree eficiency for each tray Emv; |
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| 291 | * the pump head; |
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| 292 | * the condenser vapor outlet flow (OutletV.F); |
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| 293 | * the heat supllied in bottom tank; |
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| 294 | * the heat supllied in condenser and reboiler; |
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| 295 | * the Outlet1 flow in the bottom splitter (spbottom.Outlet1.F) that corresponds to the bottom product; |
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| 296 | * all necessary dimensions and materials for cost evaluation |
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[331] | 297 | |
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[354] | 298 | == Initial Conditions == |
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| 299 | * the trays temperature (OutletL.T); |
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| 300 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
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| 301 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
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[331] | 302 | |
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[354] | 303 | * the condenser temperature (OutletL.T); |
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| 304 | * the condenser liquid level (Level); |
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| 305 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
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[331] | 306 | |
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[354] | 307 | * the bottom tank temperature (OutletL.T); |
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| 308 | * the bottom tank liquid level (Level); |
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| 309 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
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| 310 | "; |
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[331] | 311 | |
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| 312 | PARAMETERS |
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| 313 | Material as Switcher (Valid = ["Stainless steel 316", "Stainless steel 304", "Carpenter 20 CB_3", "Nickel 200", "Monel 400", "Inconel 600", "Incoloy 825", "Titanium"], |
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| 314 | Default = "Stainless steel 304"); |
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| 315 | Tray_Type as Switcher (Valid = ["Valve", "Grid", "Bubble cap", "Sieve"], Default= "Valve"); |
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| 316 | Tray_Material as Switcher (Valid = ["Stainless steel 304", "Stainless steel 316", "Carpenter 20 CB_3", "Monel"], Default= "Stainless steel 304"); |
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| 317 | Cost(12,4) as Real; |
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| 318 | Di as length (Brief="Internal Diameter for the hoof of the towers"); |
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| 319 | Lt as length (Brief="Hoof Length"); |
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| 320 | Tb as length (Brief="Bottom thickness"); |
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| 321 | Tp as length (Brief="Wall thickness"); |
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| 322 | D as length (Brief="Tower diameter"); |
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| 323 | dens_mass_material as dens_mass (Brief = "Mass Density of the Material"); |
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| 324 | Pi as constant (Brief="Pi Number",Default=3.14159265); |
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| 325 | |
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| 326 | VARIABLES |
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| 327 | Cs as currency (Brief="Total Cost of the hoof of the towers"); |
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| 328 | Cb as currency (Brief="Base Cost for the hoof of the distillation tower"); |
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| 329 | Fm as positive (Brief="Cost Factor based on the construction material"); |
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| 330 | Cpl as currency (Brief="Cost for stairs and platform"); |
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| 331 | Cbt as currency (Brief="Base Cost for the trays of the tower"); |
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| 332 | Ftm as positive (Brief="Cost Factor based on the construction material of the trays"); |
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| 333 | Fnt as positive (Brief="Cost Factor based on the number of trays in the tower"); |
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| 334 | Ftt as positive (Brief="Cost Factor based on the type of the tray"); |
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| 335 | Ct as currency (Brief="Total Cost"); |
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| 336 | Ws as mass (Brief="Equipment Weight"); |
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| 337 | |
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| 338 | EQUATIONS |
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| 339 | |
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| 340 | "Total Cost of the hoof of the towers" |
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| 341 | Cs = Cb*Fm; |
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| 342 | |
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| 343 | "Base Cost for the hoof of the distillation tower" |
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| 344 | Cb = 'US$'*exp(Cost(1,1) + Cost(1,2)*ln(Ws/'kg') + Cost(1,3)*(ln(Ws/'kg'))^2 + Cost(1,4)*(Lt/Di)*(ln(Tb/Tp))); |
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| 345 | |
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| 346 | "Cost for stairs and platform" |
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| 347 | Cpl = 'US$'*Cost(2,1)*(Di^0.63316)/'m^0.63316'*(Lt^0.80161)/'m^0.80161'; |
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| 348 | |
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| 349 | "Base Cost for the trays of the tower" |
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| 350 | Cbt = 'US$'*Cost(6,1)*exp(Cost(6,2)*D/'m'); |
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| 351 | |
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| 352 | switch Tray_Material |
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| 353 | case "Stainless steel 304": |
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| 354 | |
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| 355 | "Cost Factor based on the construction material of the trays" |
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| 356 | Ftm = Cost(7,1) + Cost(7,2)*D/'m'; |
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| 357 | |
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| 358 | case "Stainless steel 316": |
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| 359 | |
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| 360 | "Cost Factor based on the construction material of the trays" |
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| 361 | Ftm = Cost(8,1) + Cost(8,2)*D/'m'; |
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| 362 | |
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| 363 | case "Carpenter 20 CB_3": |
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| 364 | |
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| 365 | "Cost Factor based on the construction material of the trays" |
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| 366 | Ftm = Cost(9,1) + Cost(9,2)*D/'m'; |
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| 367 | |
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| 368 | case "Monel": |
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| 369 | |
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| 370 | "Cost Factor based on the construction material of the trays" |
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| 371 | Ftm = Cost(10,1) + Cost(10,2)*D/'m'; |
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| 372 | |
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| 373 | end |
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| 374 | |
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| 375 | "Cost Factor based on the number of trays in the tower" |
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| 376 | Fnt = Cost(11,1)/(Cost(11,2))^NTrays; |
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| 377 | |
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| 378 | "Total Cost" |
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| 379 | Ct = Cb*Fm + NTrays*Cbt*Ftm*Ftt*Fnt + Cpl; |
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| 380 | |
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| 381 | "Cost Factor based on the type of the tray" |
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| 382 | Ftt = Cost(12,1); |
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| 383 | |
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| 384 | "Cost Factor based on the construction material" |
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| 385 | Fm = Cost(5,1); |
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| 386 | |
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| 387 | "Equipment Weight" |
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| 388 | Ws = dens_mass_material*Di*(Lt + 0.8116*Di)*Tp*Pi; |
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| 389 | end |
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| 390 | |
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| 391 | #* ------------------------------------------------------------------- |
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| 392 | * Distillation Column model with: |
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| 393 | * |
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| 394 | * - NTrays like tray; |
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| 395 | * - a kettle reboiler; |
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| 396 | * - a steady state condenser with subcooling; |
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| 397 | * - a vessel drum (layed cilinder); |
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| 398 | * - a splitter which separate reflux and distillate; |
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| 399 | * - a pump in reflux stream. |
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| 400 | * |
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| 401 | * ------------------------------------------------------------------*# |
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| 402 | Model Distillation_kettle_subcooling_cost as Distillation_kettle_subcooling |
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| 403 | ATTRIBUTES |
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| 404 | Pallete = true; |
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| 405 | Icon = "icon/DistillationKettleSubcooling"; |
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| 406 | Brief = "Model of a distillation column with steady condenser and dynamic reboiler."; |
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| 407 | Info = |
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[354] | 408 | "== Specify == |
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| 409 | * the feed stream of each tray (Inlet); |
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| 410 | * the Murphree eficiency for each tray (Emv); |
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| 411 | * the pump pressure difference; |
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| 412 | * the heat supllied in reboiler and condenser; |
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| 413 | * the heat supllied in the top tank; |
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| 414 | * the condenser pressure drop; |
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| 415 | * the reboiler liquid outlet flow (OutletL.F); |
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| 416 | * both splitter outlet flows OR one of the splitter outlet flows and the splitter frac. |
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| 417 | * all necessary dimensions and materials for cost evaluation |
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[331] | 418 | |
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[354] | 419 | == Initial Conditions == |
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| 420 | * the trays temperature (OutletL.T); |
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| 421 | * the trays liquid level (Level) OR the trays liquid flow (OutletL.F); |
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| 422 | * (NoComps - 1) OutletL (OR OutletV) compositions for each tray; |
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[331] | 423 | |
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[354] | 424 | * the top tank temperature (OutletL.T); |
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| 425 | * the top tank liquid level (Level); |
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| 426 | * (NoComps - 1) OutletL (OR OutletV) compositions; |
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[331] | 427 | |
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[354] | 428 | * the reboiler temperature (OutletL.T); |
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| 429 | * the reboiler liquid level (Level); |
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| 430 | * (NoComps - 1) OutletL (OR OutletV) compositions. |
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| 431 | "; |
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[331] | 432 | |
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| 433 | PARAMETERS |
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| 434 | Material as Switcher (Valid = ["Stainless steel 316", "Stainless steel 304", "Carpenter 20 CB_3", "Nickel 200", "Monel 400", "Inconel 600", "Incoloy 825", "Titanium"], |
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| 435 | Default = "Stainless steel 304"); |
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| 436 | Tray_Type as Switcher (Valid = ["Valve", "Grid", "Bubble cap", "Sieve"], Default= "Valve"); |
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| 437 | Tray_Material as Switcher (Valid = ["Stainless steel 304", "Stainless steel 316", "Carpenter 20 CB_3", "Monel"], Default= "Stainless steel 304"); |
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| 438 | Cost(12,4) as Real; |
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| 439 | Di as length (Brief="Internal Diameter for the hoof of the towers"); |
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| 440 | Lt as length (Brief="Hoof Length"); |
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| 441 | Tb as length (Brief="Bottom thickness"); |
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| 442 | Tp as length (Brief="Wall thickness"); |
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| 443 | D as length (Brief="Tower diameter"); |
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| 444 | dens_mass_material as dens_mass (Brief = "Mass Density of the Material"); |
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| 445 | Pi as constant (Brief="Pi Number",Default=3.14159265); |
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| 446 | |
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| 447 | VARIABLES |
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| 448 | Cs as currency (Brief="Total Cost of the hoof of the towers"); |
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| 449 | Cb as currency (Brief="Base Cost for the hoof of the distillation tower"); |
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| 450 | Fm as positive (Brief="Cost Factor based on the construction material"); |
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| 451 | Cpl as currency (Brief="Cost for stairs and platform"); |
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| 452 | Cbt as currency (Brief="Base Cost for the trays of the tower"); |
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| 453 | Ftm as positive (Brief="Cost Factor based on the construction material of the trays"); |
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| 454 | Fnt as positive (Brief="Cost Factor based on the number of trays in the tower"); |
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| 455 | Ftt as positive (Brief="Cost Factor based on the type of the tray"); |
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| 456 | Ct as currency (Brief="Total Cost"); |
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| 457 | Ws as mass (Brief="Equipment Weight"); |
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| 458 | |
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| 459 | EQUATIONS |
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| 460 | |
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| 461 | "Total Cost of the hoof of the towers" |
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| 462 | Cs = Cb*Fm; |
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| 463 | |
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| 464 | "Base Cost for the hoof of the distillation tower" |
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| 465 | Cb = 'US$'*exp(Cost(1,1) + Cost(1,2)*ln(Ws/'kg') + Cost(1,3)*(ln(Ws/'kg'))^2 + Cost(1,4)*(Lt/Di)*(ln(Tb/Tp))); |
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| 466 | |
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| 467 | "Cost for stairs and platform" |
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| 468 | Cpl = 'US$'*Cost(2,1)*(Di^0.63316)/'m^0.63316'*(Lt^0.80161)/'m^0.80161'; |
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| 469 | |
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| 470 | "Base Cost for the trays of the tower" |
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| 471 | Cbt = 'US$'*Cost(6,1)*exp(Cost(6,2)*D/'m'); |
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| 472 | |
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| 473 | switch Tray_Material |
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| 474 | case "Stainless steel 304": |
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| 475 | |
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| 476 | "Cost Factor based on the construction material of the trays" |
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| 477 | Ftm = Cost(7,1) + Cost(7,2)*D/'m'; |
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| 478 | |
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| 479 | case "Stainless steel 316": |
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| 480 | |
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| 481 | "Cost Factor based on the construction material of the trays" |
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| 482 | Ftm = Cost(8,1) + Cost(8,2)*D/'m'; |
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| 483 | |
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| 484 | case "Carpenter 20 CB_3": |
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| 485 | |
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| 486 | "Cost Factor based on the construction material of the trays" |
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| 487 | Ftm = Cost(9,1) + Cost(9,2)*D/'m'; |
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| 488 | |
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| 489 | case "Monel": |
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| 490 | |
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| 491 | "Cost Factor based on the construction material of the trays" |
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| 492 | Ftm = Cost(10,1) + Cost(10,2)*D/'m'; |
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| 493 | |
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| 494 | end |
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| 495 | |
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| 496 | "Cost Factor based on the number of trays in the tower" |
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| 497 | Fnt = Cost(11,1)/(Cost(11,2))^NTrays; |
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| 498 | |
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| 499 | "Total Cost" |
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| 500 | Ct = Cb*Fm + NTrays*Cbt*Ftm*Ftt*Fnt + Cpl; |
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| 501 | |
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| 502 | "Cost Factor based on the type of the tray" |
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| 503 | Ftt = Cost(12,1); |
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| 504 | |
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| 505 | "Cost Factor based on the construction material" |
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| 506 | Fm = Cost(5,1); |
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| 507 | |
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| 508 | "Equipment Weight" |
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| 509 | Ws = dens_mass_material*Di*(Lt + 0.8116*Di)*Tp*Pi; |
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| 510 | end |
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