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Getting Started Building and Running a Process Model Performing a Sensitivity Analysis • 4-3

Saving a Simulation under a New

Name

Before creating a new simulation from MCH.apw or MCH.bkp,

create a file with a new name, MCHSENS.apw. Now you can

modify this new file. The original is safe.

1 From the Aspen Plus menu, select File and then Save As.

2 In the Save As dialog box, choose the directory where you

want to save the simulation.

3 In the File name field, enter MCHSENS.

4 In the Save as type field, make sure Aspen Plus Documents

(*.apw) is selected.

5 Click Save.

Defining the Sensitivity Analysis

In Chapter 3, you simulated MCH recovery using two values for

the phenol solvent flow rate. In the following sensitivity analysis,

tabulate methylcyclohexane (MCH) distillate product purity (mole

fraction), as well as condenser duty and reboiler duty, for several

different flow rates of phenol.

Entering Sensitivity Specifications

1 Select Data | Model Analysis Tools | Sensitivity.

The Model Analysis Tools | Sensitivity object manager appears.

You can use this sheet to:

• Create new sensitivity blocks.

• Edit existing sensitivity blocks.

• View status of sensitivity blocks.

2 Click New.

The Create new ID dialog box appears.

3 Click OK to accept the default ID (S-1).

Дата добавления: 2015-08-20