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Overhead Vapor

Для магистрантов специальности 220200 | ВВЕДЕНИЕ. | The Aspen Plus Main Window | Using Help | Entering Data on a Sheet | To Use the Next Function to Display the Next Required Sheet | Operation Block | Specifying Data to be Reported | Parameter Value Units | Parameter Value Units |


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(Stream 2) Results

2-18Aspen Plus Basics Getting Started Building and Running a Process Model

Note: You can also expand menu tree items by clicking the

symbol next to a closed folder. Clicking a form just once will open

the first sheet of that form.

The Block B1 Results Summary sheet appears with the overall

results for the block:

6 Review the calculated flash outlet temperature and overall

vapor fraction.

7 Click to browse through the results. Alternatively, click

the Balance and Phase Equilibrium tabs.

Modifying and Rerunning Your Model

1 From the process flowsheet, select and right-click Stream 1 to

display the stream shortcut menu.

2 Select Input.

The Data Browser window opens with the Streams | 1 | Input |

Specifications sheet in view.

3 In the Composition area, enter the following values for the

component mole-flows:

Component Value

Methanol 60

Water 40

4 From the Aspen Plus menu bar, click Run, then select Run to

run the simulation with the new feed stream values.

5 When the run is completed, display the new results for the

outlet streams and the flash block.

Getting Started Building and Running a Process Model Aspen Plus Basics2-19

Saving Your File and Exiting Aspen

Plus

For this example, save your file as both an Aspen Plus document

(.apw) file and an Aspen Plus backup (.bkp) file. Document files

contain all the intermediate convergence information from the

simulation and are useful for saving long simulations. Document

files are not forward compatible for new versions of Aspen Plus.

Backup files are compact, portable, and are forward compatible but

contain only the input specifications and simulation results. The

first run using a backup file will take just as long as the very first

run of the simulation.

First, set Aspen Plus to create a backup file with each save.

1 From the Aspen Plus menu bar, select Tools and then select

Options.

The Options dialog box appears.

2 On the General tab, in the Save options area, select the

checkbox next to Always create backup copy, if it is not

already checked.


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