| 1 | |
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| 2 | using "heat_exchangers/HeatExchangerSimplified"; |
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| 3 | |
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| 4 | FlowSheet HeatExchanger_Multipass |
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| 5 | |
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| 6 | DEVICES |
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| 7 | #=============================================================== |
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| 8 | # Heat Exchanger Multipasses - LMTD Method |
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| 9 | #=============================================================== |
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| 10 | |
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| 11 | exchanger as Multipass_LMTD; |
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| 12 | streamhot as stream_therm; |
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| 13 | streamcold as stream_therm; |
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| 14 | |
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| 15 | CONNECTIONS |
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| 16 | |
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| 17 | streamhot to exchanger.Inlet.Hot; |
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| 18 | streamcold to exchanger.Inlet.Cold; |
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| 19 | |
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| 20 | PARAMETERS |
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| 21 | |
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| 22 | PP as CalcObject (File="vrpp.dll"); |
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| 23 | NComp as Integer; |
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| 24 | HE as CalcObject (File="Heatex.dll"); |
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| 25 | SET |
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| 26 | #=============================================================== |
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| 27 | # Components - State Equation - Nshell in series |
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| 28 | #=============================================================== |
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| 29 | |
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| 30 | PP.LiquidModel = "RK"; |
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| 31 | PP.VapourModel = "RK"; |
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| 32 | PP.Components = ["water"]; |
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| 33 | NComp = PP.NumberOfComponents; |
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| 34 | exchanger.Nshell = 2; |
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| 35 | |
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| 36 | SPECIFY |
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| 37 | #============================================ |
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| 38 | # Hot Streams |
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| 39 | #============================================ |
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| 40 | streamhot.F = 100 * "kmol/h"; |
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| 41 | streamhot.T = 450 * "K"; |
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| 42 | streamhot.v = 1; |
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| 43 | streamhot.P = 1.5 * "atm"; |
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| 44 | streamhot.z = [1]; |
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| 45 | |
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| 46 | #============================================ |
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| 47 | # Cold Streams |
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| 48 | #============================================ |
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| 49 | streamcold.F = 50 * "kmol/h"; |
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| 50 | streamcold.P = 1 * "atm"; |
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| 51 | streamcold.T = 350 * "K"; |
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| 52 | streamcold.v = 0; |
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| 53 | streamcold.z = [1]; |
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| 54 | |
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| 55 | #============================================ |
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| 56 | # Required Details |
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| 57 | #============================================ |
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| 58 | exchanger.Details.A = 65 *"m^2"; |
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| 59 | exchanger.Details.U = 0.74 *"W/m^2/K"; |
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| 60 | exchanger.PressureDrop.Hot.Pdrop = 0*"atm"; |
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| 61 | exchanger.PressureDrop.Cold.Pdrop = 0*"atm"; |
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| 62 | OPTIONS |
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| 63 | #============================================ |
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| 64 | # Simulation Options |
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| 65 | #============================================ |
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| 66 | mode = "steady"; |
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| 67 | outputLevel = "all"; |
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| 68 | relativeAccuracy = 1e-8; |
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| 69 | |
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| 70 | end |
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