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    Component 144: Multi-value transmitter
    In This Topic

    Component 144: Multi-value transmitter


    Specifications

     

    Line connections

    1

    Signal-entry

    2

    Signal-exit


    General       User Input Values       Physics Used       Displays       Example

     

    General  

    For auxiliary constructions, it is often necessary to transmit several or all attributes from one line to another one. In contrast to Component 36 (Value transmitter), which allows to transmit only one quantity, Component 144 is able to transmit all quantities in a component.

    The component has one logic inlet and one logic outlet. To transmit values from a source line to a target line, a logic line has to be drawn from the logic inlet that ends somewhere on the source line, and a logic line from the logic outlet that ends somewhere on the target line.

    The following flags serve to set which quantities are to be transmitted:

    o directly transmitted (1),
    o transmitted in such a way that there is the same temperature at Pin 2 as at Pin 1 (2)
    o not transmitted at all (0)

    However, transmitting the temperature instead of the enthalpy only makes sense if there is a different composition or a different pressure on the target line than on the source line as otherwise in the case of identical temperatures the enthalpies will be identical as well.

    Stripes of the respective colour visualize which quantities are transmitted:

    In contrast to Component 36, Component 144 only enables a simple transmission (1:1). If it is necessary to consider factors, offsets or characteristic lines or to map different quantities onto each other, Component 36 will have to be used.

    User Input Values 

    FM

    Flag for specification Mass flow transfer 

    Like in Parent Profile (Sub Profile option only)

    Expression

    = 0: No

    = 1: Yes  

    FP

    Flag for specification Pressure transfer 

    Like in Parent Profile (Sub Profile option only)

    Expression

    =0: No
    =1: Yes

    FH

    Flag for specification Enthalpy transfer 

    Like in Parent Profile (Sub Profile option only)

    Expression

    =0: No
    =1: Yes (enthalpy)
    =2: Yes (temperature)

     

    FCOMP

    Flag for specification Composition transfer 

    Like in Parent Profile (Sub Profile option only)

    Expression

    =0: No
    =1: Yes

    Generally, all inputs that are visible are required. But, often default values are provided.

    For more information on colour of the input fields and their descriptions see Edit Component\Specification values

    For more information on design vs. off-design and nominal values see General\Accept Nominal values


    Physics Used

    Equations

     

     

                    

     

    if FM=1:        

                    M2 – M1 = 0      (1)

    if FP=1:

                    P2 – P1 = 0          (2)

    if FH =

    1:            H2 – H1 = 0         (3)

    2:            HX1 = H1
                                   TX1 = T(P1,HX1)
                                   HX2 = H(P2,TX1)
                                   CP1 = CP(P1,HX1)
                                   CP2 = CP(P2,HX2)
                                   DH = HX2/CP2 – HX1/CP1
                                   (1/CP2)*H2 – (1/CP1)*H1 =DH

     

      


    Component Displays

    Display Option 1

    Example

    Click here >> Component 144 Demo << to load an example.