Changeset 261


Ignore:
Timestamp:
Jun 15, 2007, 7:12:30 PM (15 years ago)
Author:
gerson bicca
Message:

documenting PHE heat exchanger

Location:
trunk
Files:
3 edited

Legend:

Unmodified
Added
Removed
  • trunk/eml/heat_exchangers/HEX_Engine.mso

    r253 r261  
    8383VARIABLES
    8484
    85 Inlet           as Properties_In_Out    (Brief="Properties at Inlet Stream");
     85Inlet                   as Properties_In_Out            (Brief="Properties at Inlet Stream");
    8686Average         as Properties_Average   (Brief="Properties at Average Temperature");
    87 Outlet          as Properties_In_Out    (Brief="Properties at Outlet Stream");
    88 Wall                    as Properties_Wall              (Brief="Properties at Wall Temperature");
     87Outlet          as Properties_In_Out            (Brief="Properties at Outlet Stream");
     88Wall                    as Properties_Wall                      (Brief="Properties at Wall Temperature");
    8989
    9090end
  • trunk/eml/heat_exchangers/PHE.mso

    r253 r261  
    2525        Brief           = "Shortcut model  for plate and Frame heat exchanger.";
    2626        Info            =
    27         "to be documented.";
     27        "
     28        Model of a gasketed plate heat exchanger.
     29        The heat transfer and pressure loss calculations are based on Kumar [1] work.
     30        The following assumptions are considered in order to derive the mathematical model [2]:
     31       
     32        A.1 : Steady-State operation;
     33        A.2 : No phase changes;
     34        A.3 : No heat loss to the surroundings.
     35        A.4 : Uniform distribution of flow through the channels of a pass.
     36
     37        References:
     38   
     39        [1] E.A.D. Saunders, Heat Exchangers: Selection, Design and
     40    Construction, Longman, Harlow, 1988.
     41   
     42        [2] J.A.W. Gut, J.M. Pinto, Modeling of plate heat exchangers
     43    with generalized configurations, Int. J. Heat Mass Transfer
     44    46 (14) (2003) 2571\2585.
     45        ";
    2846
    2947PARAMETERS
    3048
    3149outer PP                        as Plugin                       (Brief="External Physical Properties", Type="PP");
    32 outer NComp             as Integer              (Brief="Number of Components");
    33         Pi                                                      as constant             (Brief="Pi Number",Default=3.14159265);
     50outer NComp             as Integer              (Brief="Number of Chemical Components");
     51        Pi                                              as constant             (Brief="Pi Number",Default=3.14159265);
    3452        Kp1(15)                         as constant             (Brief="First constant in Kumar calculation for Pressure Drop");
    35         Kp2(15)                         as constant             (Brief="Second constant Kumar calculation for Pressure Drop");
     53        Kp2(15)                         as constant             (Brief="Second constant in Kumar calculation for Pressure Drop");
    3654        Kc1(14)                         as constant             (Brief="First constant in Kumar calculation for Heat Transfer");
    3755        Kc2(14)                         as constant             (Brief="Second constant Kumar calculation for Heat Transfer");
     
    3957       
    4058        ChevronAngle    as Switcher                     (Brief="Chevron Corrugation Inclination Angle in Degrees ",Valid=["30","45","50","60","65"],Default="30");
    41         Method                          as Switcher                     (Brief="Method of Calculation",Valid=["NTU","LMTD"],Default="NTU");
    42         SideOne                         as Switcher                     (Brief="Fluid Alocation in the Side I",Valid=["hot","cold"],Default="hot");
     59        Method                          as Switcher                     (Brief="Method of Thermal Calculation",Valid=["NTU","LMTD"],Default="NTU");
     60        SideOne                         as Switcher                     (Brief="Fluid Alocation in the Side I - (The odd channels)",Valid=["hot","cold"],Default="hot");
    4361        Nchannels                       as Integer                              (Brief="Total Number of Channels in The Whole Heat Exchanger");
    4462        Nplates                         as Integer                              (Brief="Total Number of Plates in The Whole Heat Exchanger",Default=25);
     
    6785in      InletHot                as stream                       (Brief="Inlet Hot Stream");     
    6886in      InletCold           as stream                   (Brief="Inlet Cold Stream");
    69 out     OutletHot       as streamPH             (Brief="Outlet Hot Stream");
    70 out     OutletCold      as streamPH             (Brief="Outlet Cold Stream");
     87out     OutletHot       as streamPH     (Brief="Outlet Hot Stream");
     88out     OutletCold      as streamPH     (Brief="Outlet Cold Stream");
    7189
    7290        HotSide                         as Main_PHE                             (Brief="Plate Heat Exchanger Hot Side");
    7391        ColdSide                        as Main_PHE                             (Brief="Plate Heat Exchanger Cold Side");
    74         Thermal                                 as Thermal_PHE          (Brief="Thermal Results");
     92        Thermal                         as Thermal_PHE          (Brief="Thermal Results");
    7593
    7694SET
  • trunk/sample/heat_exchangers/Sample_PHE.mso

    r253 r261  
    1717*--------------------------------------------------------------------
    1818*
    19 * This sample file needs VRTherm (www.vrtech.com.br) to run.
     19* This sample file needs VRTherm Demo (www.vrtech.com.br) to run.
    2020*
    2121*----------------------------------------------------------------------
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