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 | * Model of costs for a dynamic flash |
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17 | *-------------------------------------------------------------------- |
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18 | * - Streams |
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19 | * * a liquid outlet stream |
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20 | * * a vapour outlet stream |
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21 | * * a feed stream |
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22 | * |
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23 | * - Assumptions |
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24 | * * both phases are perfectly mixed |
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25 | * |
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26 | * - Specify: |
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27 | * * the feed stream; |
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28 | * * the outlet flows: OutletV.F and OutletL.F |
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29 | * |
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30 | * - Initial: |
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31 | * * the flash initial temperature (OutletL.T) |
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32 | * * the flash initial liquid level (Ll) |
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33 | * * (NoComps - 1) OutletL (OR OutletV) compositions |
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34 | * |
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35 | * - This model is valid if: |
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36 | * 369 kg < Equipment Weight (horizontal) < 415000kg |
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37 | * 2210 kg < Equipment Weight (vertical) < 103000kg |
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38 | * 0.92m < Di (horizontal) < 3.66m |
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39 | * 1.83m < Di (vertical) < 3.05m |
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40 | * 3.66m < Flash Length (vertical) < 6.10m |
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41 | *---------------------------------------------------------------------- |
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42 | * Author: Núbia do Carmo Ferreira |
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43 | * $Id: flash.mso 118 2007-01-15 18:48:01Z rafael $ |
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44 | *--------------------------------------------------------------------*# |
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45 | |
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46 | using "stage_separators/flash"; |
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47 | |
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48 | Model flash_cost as flash |
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49 | ATTRIBUTES |
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50 | Pallete = true; |
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51 | Icon = "icon/Flash"; |
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52 | |
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53 | PARAMETERS |
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54 | Material as Switcher (Valid = ["Stainless steell 304", "Stainless steel 316", "Carpenter 20CB_3", "Nickel 200", "Monel 400", "Inconel 600", "Incoloy 825", "Titanium"], |
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55 | Default = "Stainless steel 304"); |
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56 | Cost(6,3) as Real; |
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57 | flash_length as length (Brief = "Flash Length"); |
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58 | Div as length (Brief="Internal Diameter for vertical vases"); |
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59 | Dih as length (Brief="Internal Diameter for horizontal vases"); |
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60 | Ts as length (Brief="Thickness"); |
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61 | dens_mass_material as dens_mass (Brief = "Mass Density of the Material"); |
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62 | |
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63 | VARIABLES |
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64 | Ce as currency (Brief="Capital Cost"); |
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65 | Cb as currency (Brief="Basic Cost"); |
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66 | Ca as currency (Brief="Cost for stairs, railing and platform"); |
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67 | Fm as positive (Brief="Cost Factor based on the construction material"); |
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68 | Ws as mass (Brief="Equipment Weight"); |
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69 | |
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70 | EQUATIONS |
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71 | |
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72 | "Capital Cost" |
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73 | Ce = Cb*Fm + Ca; |
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74 | |
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75 | switch Orientation |
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76 | case "vertical": |
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77 | |
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78 | "Basic Cost" |
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79 | Cb = 'US$'*exp(Cost(2,1) - Cost(2,2)*ln(Ws/'kg') + Cost(2,3)*(ln(Ws/'kg'))^2); |
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80 | |
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81 | "Cost for stairs, railing and platform" |
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82 | Ca = 'US$'*Cost(4,1)*((Div^0.73960)/'m^0.73960')*((flash_length^0.70684)/'m^0.70684'); |
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83 | |
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84 | "Equipment Weight for vertical vases" |
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85 | Ws = dens_mass_material*Div*(flash_length + Cost(5,1)*Div)*Ts; |
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86 | |
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87 | case "horizontal": |
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88 | |
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89 | "Basic Cost for horizontal flash" |
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90 | Cb = 'US$'*exp(Cost(1,1) - Cost(1,2)*ln(Ws/'kg') + Cost(1,3)*(ln(Ws/'kg'))^2); |
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91 | |
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92 | "Cost for stairs, railing and platform" |
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93 | Ca = 'US$'*Cost(3,1)*((Dih^0.20294)/'m^0.20294'); |
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94 | |
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95 | "Equipment Weight for horizontal vases" |
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96 | Ws = dens_mass_material*Dih*(flash_length + Cost(5,1)*Dih)*Ts*Pi; |
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97 | |
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98 | end |
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99 | |
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100 | "Cost Factor based on the construction material" |
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101 | Fm = Cost(6,1); |
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102 | |
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103 | end |
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