Changeset 333


Ignore:
Timestamp:
Aug 5, 2007, 8:05:52 PM (15 years ago)
Author:
Argimiro Resende Secchi
Message:

Add vfrac in dynamic flash.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/eml/stage_separators/flash.mso

    r325 r333  
    6363        Level as length (Brief="liquid height");
    6464        Across as area (Brief="Flash Cross section area");
     65        vfrac as fraction (Brief="Vapourization fraction");
    6566
    6667        EQUATIONS
     
    7980        "Mol fraction normalisation"
    8081        sum(OutletL.z)=1.0;
     82
    8183        "Mol fraction normalisation"
    8284        sum(OutletL.z)=sum(OutletV.z);
    83        
     85
     86        "Vaporization Fraction"
     87        OutletV.F = Inlet.F * vfrac;
     88
    8489        "Liquid Volume"
    8590        vL = PP.LiquidVolume(OutletL.T, OutletL.P, OutletL.z);
     91
    8692        "Vapour Volume"
    8793        vV = PP.VapourVolume(OutletV.T, OutletV.P, OutletV.z);
     
    144150out     OutletV as vapour_stream(Brief="Vapour outlet stream", PosX=0.4877, PosY=0);
    145151in      InletQ as energy_stream (Brief="Rate of heat supply", PosX=1, PosY=0.7559);
    146         vfrac as fraction;
     152        vfrac as fraction (Brief="Vapourization fraction");
    147153
    148154        EQUATIONS
     
    152158        "Global Molar Balance"
    153159        Inlet.F = OutletV.F + OutletL.F;
    154         "Vaporisation Fraction"
     160       
     161        "Vaporization Fraction"
    155162        OutletV.F = Inlet.F * vfrac;
    156163       
     
    195202out     OutletV as vapour_stream(Brief="Vapour outlet stream", PosX=0.4877, PosY=0);
    196203in      InletQ as energy_stream (Brief="Rate of heat supply", PosX=1, PosY=0.7559);
    197         vfrac as fraction(Brief="Real vaporization fraction");
     204        vfrac as fraction(Brief="Vaporization fraction");
    198205        h as enth_mol(Brief="Mixture enthalpy");
    199206
     
    253260out     OutletV as vapour_stream(Brief="Vapour outlet stream", PosX=0.4877, PosY=0);
    254261in      InletQ as energy_stream (Brief="Rate of heat supply", PosX=1, PosY=0.7559);
    255         vfrac as fraction(Brief="Real vaporization fraction");
     262        vfrac as fraction(Brief="Vaporization fraction");
    256263        vsat as Real(Lower=-0.1, Upper=1.1, Brief="Vaporization fraction if saturated");
    257264        Tsat as temperature(Lower=173, Upper=1473, Brief="Temperature if saturated");
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