| 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 | Pi as constant (Brief="Pi Number",Default=3.14159265); |
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| 63 | |
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| 64 | VARIABLES |
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| 65 | Ce as currency (Brief="Capital Cost"); |
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| 66 | Cb as currency (Brief="Basic Cost"); |
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| 67 | Ca as currency (Brief="Cost for stairs, railing and platform"); |
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| 68 | Fm as positive (Brief="Cost Factor based on the construction material"); |
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| 69 | Ws as mass (Brief="Equipment Weight"); |
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| 70 | |
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| 71 | EQUATIONS |
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| 72 | |
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| 73 | "Capital Cost" |
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| 74 | Ce = Cb*Fm + Ca; |
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| 75 | |
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| 76 | switch Orientation |
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| 77 | case "vertical": |
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| 78 | |
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| 79 | "Basic Cost" |
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| 80 | Cb = 'US$'*exp(Cost(2,1) - Cost(2,2)*ln(Ws/'kg') + Cost(2,3)*(ln(Ws/'kg'))^2); |
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| 81 | |
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| 82 | "Cost for stairs, railing and platform" |
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| 83 | Ca = 'US$'*Cost(4,1)*((Div^0.73960)/'m^0.73960')*((flash_length^0.70684)/'m^0.70684'); |
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| 84 | |
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| 85 | "Equipment Weight for vertical vases" |
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| 86 | Ws = dens_mass_material*Div*(flash_length + Cost(5,1)*Div)*Ts; |
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| 87 | |
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| 88 | case "horizontal": |
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| 89 | |
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| 90 | "Basic Cost for horizontal flash" |
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| 91 | Cb = 'US$'*exp(Cost(1,1) - Cost(1,2)*ln(Ws/'kg') + Cost(1,3)*(ln(Ws/'kg'))^2); |
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| 92 | |
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| 93 | "Cost for stairs, railing and platform" |
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| 94 | Ca = 'US$'*Cost(3,1)*((Dih^0.20294)/'m^0.20294'); |
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| 95 | |
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| 96 | "Equipment Weight for horizontal vases" |
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| 97 | Ws = dens_mass_material*Dih*(flash_length + Cost(5,1)*Dih)*Ts*Pi; |
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| 98 | |
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| 99 | end |
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| 100 | |
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| 101 | "Cost Factor based on the construction material" |
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| 102 | Fm = Cost(6,1); |
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| 103 | |
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| 104 | end |
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