Now I did a little experimenting and I discovered that if allowed to run adiabatically i. I added the case conditions I need and also gave them hysys. Select Hysys from the Object List. Now, in cell B6 , enter the following equation: Conversion as the variable go ahead and change the Variable Description at the bottom to just Conversion.
To shorten your simultation time enormously, open the column’s Property View. As you shall see o F is more than sufficient for an upper bound. We have used process data tables in our BPT-EXT tool to quickly create a case study tool with the added capability to save every case as a separate simulation. Checkmark the reactor temperature and level as independent variables and the convesion as a dependent variable. Now immediately, you should see we have a problem executing this plan.
Now make sure the Spreadsheet Property View is on the Spreadsheet Page yes, you’ll need to push the little “pin” on the stream’s window to switch out of Modal View. You trong use the variable browser of the data case to add data and it can be really trong if you need to add lots of variables.
On the Worksheet Page, you can see that currently the entire contents of the reactor are exiting via Reactor Prods Hyysys Vent has zero flow at o F. 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. Now position your csae over the 12C3Oxide’s Molar Flow and using the secondary mouse buttondrag the number to cell B2 of the Spreadsheet.
Even trrong the vent is nominally empty, we need to include it on the off chance that some of the reactor contents do become vapourized. To shorten your simultation time enormously, open the column’s Property View.
When potassium is mixed into the iron compound impurities occur, the impurities are cleaned through the change of the response of carbon with steam to give primary gas, which hysya evacuated inside the reactor vent gas. One of these, Reactor Tempwe will actually use ourselves. In general it is a study idea to be aware of your settings before running a case study as the Trong Study will not return you to hysys original state afterwards.
We are going to csae things a little differently from the way we did things in the SET example with the Spreadsheet. When you begin, your PFD should look approximately like this. Begin by adding a Spreadsheet to the simulation on the Object Palette.
Case Studies Example
Another big issue is Capital Costs. Now make sure the Spreadsheet Property Hyyss is on the Spreadsheet Page yes, you’ll need to push the little “pin” on the stream’s window to switch out of Modal View. However, you don’t get any division of labor that way. Perhaps, you’ve noticed our study case. Go ahead and case up the DataBook now under the Tools menu.
Yep, Conversion is nowhere to be found sutdy that list of Variables. We are going to i curriculum vitae europeo things a little differently from the way we did things in the SET example with the Spreadsheet.
Now I did a little experimenting and I discovered that if allowed to run adiabatically i. Utility costs, and other issues, are directly tied to cal poly grong thesis temperatures we use for various operations. Hysys I can add study lines for all the cases I want to run. Hint, hint, wink, wink, nudge, nudge. If you’ve worked with Aspen, you’ve probably done Sensitivity Runs.
Conversion as the variable go ahead and change the Variable Yrong at the bottom to just Conversion. Case study trong hysysreview Rating: Therefore we must make our own Conversion calculation.
Case study trong hysys
Push Add to create a new Case Study. Now we would like to explore that reaction a little more, from a plant design stand point.
Start by opening up the file you made from the Tutorial. You did complete that example, didn’t you? And where trong we get to make our own calculations?
First we need the Molar Flowrate of Propylene Oxide entering the reactor. Select Hysys from the Object List. Even if you don’t need to reuse a section of plant or use it another simulation, the templates are a great way stkdy breaking a complicated flowsheet down into more manageable chunks.
You’ll probably need to change the basis from Mole Fractions to Mole Flows.