HYSYS CASE STUDY TUTORIAL

Go back to the Case Studies Page actually you might first want to make a recording on the Data Recorder Page, as that is a good habit to get into. Another big issue is Capital Costs. However, you the boiling point of the mixture is around o F. And where do we get to make our own calculations? Since the general rule goes, the bigger the piece of equipment, the more expensive it is, we’d like to see how sensitive the reaction is to the size of the reactor. Instead of importing variables on the Connections Page, we are going to do it directly sometimes it may take just as long though, because of all the windows you’ll have to wade through to display the number you want. We’re done with the example.

Now, in cell B6 , enter the following equation: One of these, Reactor Temp , we will actually use ourselves. Remember our goal is to vary the reactor temperature and reactor size done here by varying what percentage of cubic feet need actually be filled with liquid and observe the effect on the reactor’s efficiency i. Switch to the Case Studies Page. First we need the Molar Flowrate of Propylene Oxide entering the reactor. And where do we get to make our own calculations?

You should see a nice, pretty 3 dimensional graph of Conversion vs. In this case that would mean running an unnecessary column times from the Number of States in the upper right corner.

I recommend that you now look at the results and try to analyze why they came out as they did and play with the various 3D graph controls use the secondary mouse button over the graph to bring up the menu. For more information on the special functions and logical expressions you may use, press Function Help Hysye we will be varying the liquid volume by changing the Liquid Level percentage and we like even numbers, go ahead and change the Vessel Volume to ft 3.

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This example will build on the simulation you made for the Chemicals Tutorial Case from Chapter 4 of the Tutorials Manual. All right, we’ll worry about that in a second. First we need the Molar Flowrate of Propylene Oxide entering the reactor. Utility costs, and other issues, are directly tied to the temperatures we use for various operations.

The column should turn yellow, and you may close its window. The Variables Navigator will appear.

For more information on the special functions and logical expressions you may use, press Function Help Instead of importing variables on the Connections Page, we are going to do it directly sometimes it may take just as long though, because of all the windows you’ll have to wade through to display the number you want. Since it is the same variable, despite the slightly different nomenclature, HYSYS will change one when it changes the other.

Now I did a little experimenting and I discovered that if allowed to run adiabatically i.

Where the sensitivity runs only solve as much of the flowsheet as they need to to get all the dependent variables, Case Studies in HYSYS apparently solve the entire flowsheet every time.

Switch tutoriwl the Case Studies Page.

hysys case study tutorial

Instead of importing variables on the Connections Page, we are going to do it tutorjal sometimes it may take just as long though, because of all the windows you’ll have to wade through to display the number you want. This uttorial will build on the simulation you made for the Chemicals Tutorial Case from Chapter 4 of the Tutorials Manual. Since the general rule goes, the bigger the piece of equipment, the more expensive it is, we’d like to see how sensitive the reaction is to the size of the reactor.

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Therefore, that is the variable we truly wanted.

case study in hysys

Let’s go ahead and get hywys Liquid Percent while we are here. Push Add to create a new Case Study. On the Reactions Page, you can see that the current Liquid Volume is ft 3 and that the current conversion in the reactor is You should see a nice, pretty 3 dimensional graph of Conversion vs.

The multiplier is because we wish to express the conversion as a percentage.

Case Studies Example

Now, in cell B6enter the following equation: The Liquid Percent Level is not offered as an independent variable! Remember our goal is to vary the reactor temperature and reactor size done here by varying what percentage of cubic feet need actually be filled with liquid and observe the effect on tutoriial reactor’s efficiency i.

To shorten your simultation time enormously, open the column’s Property View. The column should turn yellow, and you may close its window. The Liquid Percent Level is not offered as an independent variable!

When you begin, your PFD should look approximately like this. If you’ve worked with Aspen, you’ve probably done Sensitivity Runs.

hysys case study tutorial

You may also want to try a two dimensional case study, Coolant Duty vs. Perhaps, you’ve noticed our first problem. This example will build on the simulation you made for the Chemicals Tutorial Case from Chapter 4 of the Tutorials Manual.