Page 126 - Process simulation and control using Aspen

116 PROCESS SIMULATION AND CONTRQL USING ASPEN

Specifying components
Use the Data Browser menu tree to nav igate to the Components/Specifications/
Selection sheet (see Figure 3.13).

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FIGURE 3.13
In the window, shown in Figure 3.13, the table has four columns; they are under
the headings oi Component ID, Type, Component name and Formula. Among them, the
Type is a speciication of how an Aspen software calculates the thermodynamic
f
properties. For fluid processing of organic chemicals, it is generally suitable to use
Conventional optiom Remember that component ID column should be filled out by the
It is sufficient to use the
user. A Component ID is essentially an alias for a component.
chemical formulas or names of the components as their IDs . On the basis of these
Component name and
f T haPPen'* thatAsPenPlu« tofindaneXaCt
component IDs, Aspen Plus may spontaneously fill up the Type ,
mateh in ' A«Pen Plus does not recognize the components by
lt}lhrATyin °*er words Select the components from
T86 fj!? 0 0 Search the components . in
Subsectiri 3 detaiIs See the solution aPProach
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(see lfir fo T 6 0f COmPonent hane and ethylene, as thefr IDs
(see Figure 3.14). The other three columns have been automatically filled out.
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Specifying property method
tZSlTjiT j11'1!!?68 I?0118 meth0ds *** mod to compute the phy e
Pron l 2 0ht th? Pr0Perty input f0rm ' er hit Next icon or choos e
Set RK-Soav
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.
Propernes/Speciications in the let pane of the Data Browser window .
property method by scrolling down (see Figure 3.15).