Changeset 877 for branches/gui/eml

Timestamp:

Nov 4, 2009, 12:25:16 PM (13 years ago)

Author:

mamuller

Message:

added very simple subcooling condenser model

File:

• branches/gui/eml/stage_separators/condenser.mso (modified) (1 diff)

branches/gui/eml/stage_separators/condenser.mso

@@ -523 +523 @@
         
 end
+
+
+Model condenserSubcooled
+
+ATTRIBUTES
+        Pallete         = true;
+        Icon            = "icon/CondenserSteady"; 
+        Brief           = "Model of a  Steady State total condenser with specified temperature outlet conditions.";
+        Info            =
+"A simple model of a simple Steady State total condenser with specified temperature (or subcooling degree), with a real 
+calculation of the output stream enthalpy.
+
+== ASSUMPTIONS ==
+* perfect mixing of both phases;
+* saturated vapour at the Inlet.
+* no thermodynamics equilibrium.
+
+== SET ==
+* the fake Outlet temperature ;
+* the pressure drop in the condenser;
+
+== SPECIFY ==
+* the InletVapour stream;
+* the subcooled temperature OR the the degree of subcooling.
+
+== OPTIONAL ==
+* the condenser model has two control ports
+** TI OutletLiquid Temperature Indicator;
+** PI OutletLiquid Pressure Indicator;
+";
+
+PARAMETERS
+        outer PP        as Plugin       (Brief = "External Physical Properties", Type="PP");
+        outer NComp as Integer  (Brief = "Number of Components");
+
+        Pdrop   as press_delta  (Brief="Pressure Drop in the condenser",Default=0, Symbol="\Delta _P");
+        #Fake_Temperature               as temperature  (Brief="Fake temperature", Symbol = "T_{fake}");
+
+
+VARIABLES
+        in      InletVapour     as stream       (Brief="Vapour inlet stream", PosX=0.16, PosY=0, Symbol="_{in}^{Vapour}");
+        out     OutletLiquid    as stream       (Brief="Liquid outlet stream", PosX=0.53, PosY=1, Symbol="_{out}^{Liquid}");
+        #in     InletQ                  as power        (Brief="Heat Duty", PosX=1, PosY=0.08, Symbol="Q_{in}",Protected=true);
+        T_sub                           as temperature (Brief="Condensate temperature (subcooled)", Symbol = "T_{sub}");
+        SubcoolingDegree        as temperature (Brief="Subcooling Degree", Symbol = "\Delta _{sub}");
+
+        out     TI as control_signal    (Brief="Temperature  Indicator of Condenser", Protected = true, PosX=0.50, PosY=0);
+        out     PI as control_signal    (Brief="Pressure  Indicator of Condenser", Protected = true, PosX=0.32, PosY=0);
+
+EQUATIONS
+
+"Molar Flow Balance"
+        InletVapour.F = OutletLiquid.F;
+
+"Molar Composition Balance"
+        InletVapour.z = OutletLiquid.z;
+
+#"Energy Balance"
+        #InletVapour.F*InletVapour.h  + InletQ = OutletLiquid.F*OutletLiquid.h;
+        #InletVapour.F*InletVapour.h  = OutletLiquid.F*OutletLiquid.h;
+
+"Pressure Drop"
+        OutletLiquid.P = InletVapour.P - Pdrop;
+
+"Subcooled Temperature"
+        OutletLiquid.T = T_sub;
+        
+"Degree of subcooling"  
+        SubcoolingDegree = InletVapour.T - T_sub;
+
+"Liquid enthalpy"
+        OutletLiquid.h = PP.LiquidEnthalpy(OutletLiquid.T, OutletLiquid.P, OutletLiquid.z);
+        
+"Vapourisation Fraction"
+        OutletLiquid.v = 0;
+        
+"Temperature indicator"
+        TI * 'K' = OutletLiquid.T;
+
+"Pressure indicator"
+        PI * 'atm' = OutletLiquid.P;
+
+end
+