source: trunk/eml/mixers_splitters/sepComp.mso @ 301

#*-------------------------------------------------------------------
* EMSO Model Library (EML) Copyright (C) 2004 - 2007 ALSOC.
*
* This LIBRARY is free software; you can distribute it and/or modify
* it under the therms of the ALSOC FREE LICENSE as available at
* http://www.enq.ufrgs.br/alsoc.
*
* EMSO Copyright (C) 2004 - 2007 ALSOC, original code
* from http://www.rps.eng.br Copyright (C) 2002-2004.
* All rights reserved.
*
* EMSO is distributed under the therms of the ALSOC LICENSE as
* available at http://www.enq.ufrgs.br/alsoc.
*
*----------------------------------------------------------------------
* Author: Maurício Carvalho Maciel
* $Id: sepComp.mso 269 2007-06-16 18:50:11Z rafael $
*--------------------------------------------------------------------*#

using "streams";

Model sepComp_n
        ATTRIBUTES
        Pallete         = true;
        Icon            = "splitter_n"; 
        Brief           = "Model of a separator of components";
        Info            = "
        Assumptions:
         * thermodynamics equilibrium
         * adiabatic
        
        Specify:
                * the inlet stream
                * (NComp - 1) molar fractions to (Noutlet - 1) outlet streams
                * (Noutlet - 1) frac (fraction of split of the outlet streams):
                                
                                        frac(i) = (Mole Flow of the outlet stream i / 
                                                                        Mole Flow of the inlet stream)
                                                                                                        where i = 1, 2,...,Noutlet
                        or

                  (Noutlet - 1) recovery (Recovery of the component specified in the outlet stream i):

                                        recovery(i) = (Mole Flow of the component specified in the Outlet stream i/ 
                                                                                Mole Flow of the component specified in the inlet stream)
                                                                                                        where i = 1, 2,...,Noutlet
        ";
        
PARAMETERS

outer PP                        as Plugin       (Brief = "External Physical Properties", Type="PP");
outer   NComp           as Integer      (Brief = "Number of chemical components", Lower = 1);
                NOutlet                 as Integer      (Brief = "Number of Outlet Streams", Lower = 1);
                mainComp        as Integer      (Brief = "Component specified", Default = 1, Lower = 1);
        
VARIABLES

in              Inlet                                   as stream;
out     Outlet(NOutlet)         as stream;

        frac(NOutlet)                   as fraction (Brief = "Distribution of the Outlet streams");
        recovery(NOutlet)       as fraction (Brief = "Recovery of the component specified");

EQUATIONS
        
"Flow"
        sum(Outlet.F) = Inlet.F;
        
        
for i in [1:NOutlet-1]

"Mol fraction normalisation"
        sum(Outlet(i).z) = 1;

end
        
        
for i in [1:NComp]
        
"Composition"
        sum(Outlet.F*Outlet.z(i)) = Inlet.F*Inlet.z(i);
        
end     
        
        
for i in [1:NOutlet]
        
"Flow"
        Outlet(i).F = Inlet.F*frac(i);
        
"Recovery"
        recovery(i)*Inlet.z(mainComp) = frac(i)*Outlet(i).z(mainComp);
        
"Pressure"
        Outlet(i).P = Inlet.P;
        
"Enthalpy"
        Outlet(i).h = (1-Outlet(i).v)*PP.LiquidEnthalpy(Outlet(i).T, Outlet(i).P, Outlet(i).z) + 
                                Outlet(i).v*PP.VapourEnthalpy(Outlet(i).T, Outlet(i).P, Outlet(i).z);
        
"Temperature"   
        Outlet(i).T = Inlet.T;

"Vapourization Fraction"
        Outlet(i).v = PP.VapourFraction(Outlet(i).T, Outlet(i).P, Outlet(i).z);
        
end

end


Model sepComp
        ATTRIBUTES
        Pallete         = true;
        Icon            = "splitter"; 
        Brief           = "Model of a separator of components";
        Info            = "
        Assumptions:
         * thermodynamics equilibrium
         * adiabatic
        
        Specify:
                * the inlet stream
                * (NComp - 1) molar fractions to 1 of the outlet streams
                * the fraction of split of the outlet streams
        ";

PARAMETERS

outer PP                        as Plugin       (Brief = "External Physical Properties", Type="PP");
outer   NComp           as Integer      (Brief = "Number of chemical components", Lower = 1); 
                mainComp        as Integer      (Brief = "Component specified", Default = 1, Lower = 1);
        
VARIABLES

in              Inlet           as stream;
out     Outlet1         as stream;
out     Outlet2         as stream;
        
        frac                    as fraction (Brief = "Fraction to Outlet 1");
        recovery        as fraction (Brief = "Recovery of the component specified");

        EQUATIONS
        
"Flow"
        Outlet1.F = Inlet.F * frac;
        Outlet1.F + Outlet2.F = Inlet.F;
        
        recovery*Inlet.z(mainComp) = frac*Outlet1.z(mainComp);
        
        sum(Outlet1.z) = 1;
        
for i in [1:NComp]
        
 "Composition"
        Outlet1.F*Outlet1.z(i) + Outlet2.F*Outlet2.z(i) = Inlet.F*Inlet.z(i);

end
        
"Pressure"
        Outlet1.P = Inlet.P;
        Outlet2.P = Inlet.P;
        
"Enthalpy"
        Outlet1.h = (1-Outlet1.v)*PP.LiquidEnthalpy(Outlet1.T, Outlet1.P, Outlet1.z) + 
                                Outlet1.v*PP.VapourEnthalpy(Outlet1.T, Outlet1.P, Outlet1.z);
        Outlet2.h = (1-Outlet2.v)*PP.LiquidEnthalpy(Outlet2.T, Outlet2.P, Outlet2.z) + 
                                Outlet2.v*PP.VapourEnthalpy(Outlet2.T, Outlet2.P, Outlet2.z);
        
"Temperature"
        Outlet1.T = Inlet.T;
        Outlet2.T = Inlet.T;
        
"Vapourization Fraction"
        Outlet1.v = PP.VapourFraction(Outlet1.T, Outlet1.P, Outlet1.z);
        Outlet2.v = PP.VapourFraction(Outlet2.T, Outlet2.P, Outlet2.z);

end