| [1] | 1 | #* EMSO template file for new flowsheets. |
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| 2 | * |
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| 3 | * The user should edit the contents of this file in order |
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| 4 | * to develop a new flowsheet. |
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| 5 | * |
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| 6 | * $ID$ |
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| 7 | *# |
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| 8 | |
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| 9 | #* The using command makes available entities declared in another files. |
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| 10 | * |
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| 11 | * With this command the user can make use of the EML models |
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| 12 | *# |
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| 13 | using "stage_separators/flash"; |
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| 14 | |
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| 15 | #* |
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| 16 | * A new flowsheet is declared with the FlowSheet keyword and a name. |
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| 17 | * A flowhseet can have several sections presented above: |
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| 18 | *# |
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| 19 | FlowSheet MyFlowSheet |
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| 20 | #* |
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| 21 | * In the PARAMETERS section we can define the constants of the |
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| 22 | * FlowSheet. When the model requires thermodynamic calculations |
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| 23 | * we should create an special parameter called PP and select |
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| 24 | * the model and components of the mixture, as follows: |
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| 25 | *# |
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| 26 | PARAMETERS |
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| 27 | PP as CalcObject(Brief="Physical Properties", File="vrpp"); |
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| 28 | NComp as Integer; |
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| 29 | SET |
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| 30 | PP.Components = ["1,3-butadiene", "isobutene", "n-pentane", "1-pentene"]; |
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| 31 | PP.LiquidModel = "PR"; |
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| 32 | PP.VapourModel = "PR"; |
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| 33 | NComp = PP.NumberOfComponents; |
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| 34 | |
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| 35 | #* |
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| 36 | * In the DEVICES section the components of the process are declared. |
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| 37 | * Each device is based in a previously defined mathematical model, coming |
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| 38 | * from the EML or developed by the user. |
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| 39 | *# |
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| 40 | DEVICES |
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| 41 | STR101 as stream_therm; |
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| 42 | FLASH101 as flash; |
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| 43 | |
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| 44 | #* |
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| 45 | * Once the devices of the process were declared we can connect them |
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| 46 | * in the CONNECTIONS section |
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| 47 | *# |
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| 48 | CONNECTIONS |
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| 49 | STR101 to FLASH101.Feed; |
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| 50 | |
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| 51 | #* |
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| 52 | * In order to simulate the process the user should specify some variables |
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| 53 | *# |
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| 54 | SPECIFY |
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| 55 | STR101.F = 496.3 * "kmol/h"; |
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| 56 | STR101.T = 338 * "K"; |
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| 57 | STR101.P = 507.1 * "kPa"; |
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| 58 | STR101.v = 0.1380; |
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| 59 | STR101.z = [0.2379, 0.3082, 0.09959, 0.35431]; |
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| 60 | |
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| 61 | FLASH101.OutletV.F = 68.5 * "kmol/h"; |
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| 62 | FLASH101.OutletL.F = 400*sqrt(fl.Level) * "kmol/h"; |
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| 63 | |
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| 64 | #* |
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| 65 | * We can adjust the parameters of the devices in any point after |
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| 66 | * its declaration. |
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| 67 | *# |
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| 68 | SET |
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| 69 | FLASH101.Q = 1 * "kJ/h"; |
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| 70 | FLASH101.V = 2000 * "m^3"; |
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| 71 | FLASH101.Across = 1 * "m^2"; |
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| 72 | |
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| 73 | #* |
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| 74 | * Besides the usual specifications, dynamic models require the specification |
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| 75 | * of initial conditions. |
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| 76 | *# |
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| 77 | INITIAL |
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| 78 | FLASH101.OutletL.T = 330 *"K"; |
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| 79 | FLASH101.Level = 1 * "m"; |
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| 80 | FLASH101.OutletL.z(1) = 0.1; |
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| 81 | FLASH101.OutletL.z(2) = 0.1; |
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| 82 | FLASH101.OutletL.z(3) = 0.1; |
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| 83 | end |
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| 84 | # The end keyword informs that the flowsheet declaration have ended. |
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| 85 | |
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| 86 | |
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| 87 | |
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