| 1 | #*------------------------------------------------------------------- |
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| 2 | * Biorrefinaria Petrobras |
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| 3 | *-------------------------------------------------------------------- |
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| 4 | * Nome do arquivo: turbine_w.mso |
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| 5 | * Projeto: Modelo integrado de producao de etanol 1G/2G |
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| 6 | * Conteudo: turbina |
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| 7 | *--------------------------------------------------------------------*# |
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| 8 | |
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| 9 | #*------------------------------------------------------------------- |
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| 10 | * |
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| 11 | * Versao 2.2 |
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| 12 | * Data: 03/2016 |
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| 13 | * Autores: Anderson R. A. Lino e Gabriel C. Fonseca |
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| 14 | * |
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| 15 | *-------------------------------------------------------------------- |
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| 16 | *Descricao: modelo da turbina que sera empregado na biorrefinaria |
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| 17 | *-------------------------------------------------------------------- |
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| 18 | |
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| 19 | *-------------------------------------------------------------------- |
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| 20 | *Notas: Foi feito o flowsheet teste para averiguar o modelo e outro |
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| 21 | * para averiguar as propriedades |
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| 22 | *--------------------------------------------------------------------*# |
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| 23 | |
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| 24 | using "water_stream"; |
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| 25 | using "energy_stream"; |
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| 26 | |
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| 27 | |
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| 28 | Model turbine_w |
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| 29 | ATTRIBUTES |
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| 30 | Pallete = true; |
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| 31 | Icon = "icon/turbine"; |
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| 32 | Brief = "Simplified Turbine Model"; |
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| 33 | Info = |
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| 34 | "== GENERAL == |
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| 35 | Model of a steam turbine based on the isoentropric efficiency |
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| 36 | and the mechanical efficiency. |
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| 37 | |
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| 38 | == ASSUMPTIONS == |
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| 39 | * Steady-state; |
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| 40 | * Adiabatic. |
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| 41 | |
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| 42 | == SPECIFY == |
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| 43 | * Inlet stream: |
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| 44 | flow rate |
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| 45 | temperature |
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| 46 | pressure |
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| 47 | stream composition; |
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| 48 | * Pressure drop or outlet stream pressure; |
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| 49 | * Turbine isoentropic efficiency; |
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| 50 | * Turbine mechanical efficiency. |
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| 51 | |
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| 52 | == SET == |
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| 53 | * Specify the phase that comes out of the source. |
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| 54 | "; |
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| 55 | |
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| 56 | |
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| 57 | #*------------------------------------------------------------------- |
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| 58 | #Parametros |
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| 59 | *--------------------------------------------------------------------*# |
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| 60 | |
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| 61 | PARAMETERS |
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| 62 | propterm as Plugin (Brief="Steam tables", Symbol = "{}", Type="water"); |
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| 63 | |
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| 64 | #*------------------------------------------------------------------- |
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| 65 | * Declaracao de variaveis |
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| 66 | *--------------------------------------------------------------------*# |
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| 67 | |
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| 68 | VARIABLES |
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| 69 | H_IS as enth_mass (Brief = "Outlet Isoentropic Mass Enthalpy", Symbol = "H_{isoentr}"); |
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| 70 | EF_T as efficiency (Brief = "Turbine Efficiency", Symbol = "\eta_{term}", Default = 0.5); |
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| 71 | EF_ME as efficiency (Brief = "Turbine Mechanical and Electric Efficiency", Symbol = "\eta_{mech}", Default = 0.96); |
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| 72 | q_losses as heat_rate (Brief = "Heat Losses", Symbol = "q_{loss}"); |
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| 73 | |
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| 74 | in Inlet as water_stream (Brief = "Inlet Current", PosX=0.08, PosY=0.0, Symbol="_{in}", Protected = true); |
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| 75 | out Outlet as water_stream_vapfrac (Brief = "Outlet Current", PosX=0.665, PosY=1.0, Symbol="_{out}", Protected = false); |
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| 76 | out Outlet_p as power_stream (Brief = "Eletric Power Generated", PosX=0.94, PosY=0.5, Symbol="_{out}"); |
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| 77 | |
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| 78 | Pdrop as press_delta (Brief = "Pressure Drop", Symbol = "\Delta P"); |
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| 79 | Pout as pressure (Brief = "Outlet Pressure", Symbol = "\P_out"); |
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| 80 | #*------------------------------------------------------------------- |
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| 81 | * Equacoes do modelo |
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| 82 | *--------------------------------------------------------------------*# |
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| 83 | |
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| 84 | EQUATIONS |
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| 85 | "Mass Balance" |
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| 86 | Outlet.Fw = Inlet.Fw; |
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| 87 | |
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| 88 | "Pressure Drop" |
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| 89 | Inlet.P = Outlet.P + Pdrop; |
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| 90 | |
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| 91 | "Outlet Pressure" |
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| 92 | Outlet.P = Pout; |
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| 93 | |
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| 94 | "Outlet Isoentropic Mass Enthalpy" |
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| 95 | H_IS = propterm.propPS(Outlet.P, Inlet.S); |
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| 96 | |
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| 97 | "Outlet Real Mass Enthalpy" |
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| 98 | Outlet.H = (H_IS - Inlet.H) * EF_T + Inlet.H; |
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| 99 | |
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| 100 | "Outlet Mass Entropy and Temperature, array = [Outlet.S, Outlet.H]" |
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| 101 | [Outlet.S, Outlet.T] = propterm.propPH(Outlet.P, Outlet.H); |
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| 102 | |
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| 103 | "Eletric Power Generated" |
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| 104 | Inlet.Fw * (Inlet.H - Outlet.H) * EF_ME = Outlet_p.W ; |
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| 105 | |
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| 106 | "Energy Balance" |
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| 107 | q_losses + Outlet_p.W = Inlet.Fw * (Inlet.H - Outlet.H); |
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| 108 | |
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| 109 | end |
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| 110 | |
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| 111 | FlowSheet teste_turbine_w |
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| 112 | |
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| 113 | #*------------------------------------------------------------------- |
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| 114 | * Declaracao de dispositivos (ou blocos contendo o modelo) |
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| 115 | *--------------------------------------------------------------------*# |
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| 116 | |
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| 117 | DEVICES |
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| 118 | S101 as water_sourceR; |
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| 119 | T101 as turbine_w; |
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| 120 | |
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| 121 | #*------------------------------------------------------------------- |
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| 122 | * Especifica as conexoes entre os modelos |
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| 123 | *--------------------------------------------------------------------*# |
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| 124 | |
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| 125 | CONNECTIONS |
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| 126 | S101.Outlet to T101.Inlet; |
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| 127 | |
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| 128 | #*------------------------------------------------------------------- |
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| 129 | * Especifica variaveis definidas no modelo |
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| 130 | *--------------------------------------------------------------------*# |
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| 131 | |
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| 132 | SPECIFY |
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| 133 | |
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| 134 | S101.Fw = 252100 * 'kg/h'; |
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| 135 | S101.T = (520 + 273.15) * 'K'; |
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| 136 | S101.P = 120 * 'bar'; |
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| 137 | |
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| 138 | T101.Outlet.P = 22 * 'bar'; |
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| 139 | T101.EF_T = 0.8; |
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| 140 | T101.EF_ME = 0.958; |
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| 141 | |
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| 142 | SET |
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| 143 | S101.ValidPhases = "Vapour-Only"; |
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| 144 | |
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| 145 | #*------------------------------------------------------------------- |
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| 146 | * Condicoes iniciais e opcoes de Solver |
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| 147 | *--------------------------------------------------------------------*# |
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| 148 | |
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| 149 | OPTIONS |
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| 150 | Dynamic = false; |
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| 151 | |
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| 152 | end |
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