Page 123 - Process simulation and control using Aspen

ASPEN PLUS SIMULATION OF DISTILLATION MODELS 113

Now the Status bar in the window, shown in Figure 3.7, says Required Input
Incomplete indicating that the flowsheet is complete and the input specifications are
required to provide using available input forms for running the Aspen simulator.
Configuring settings
Recall that within the Aspen simulation software, the simplest way to find the next
step is to use one of the following equivalent commands:

(a) press the Next button
(b) find 'Next' in the Tools menu
(c) use shortcut key F4
and obtain Figure 3.8.

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3 I

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FIGURE 3.8

Hitting OK on the above message, we obtain the setup input form. Alternatively,
select Solver Settings knob and choose Setup /Specifications in the list on the left
(see Figure 3.9).
Although optional, it is a good practice to fill out the above form with a title and to
provide the accounting information subsequently. The present project is titled as
'
Simulation of a Shortcut Distillation Column' (see Figure 3.10).