Welcome to this tutorial on Creating a Material Stream in DWSIM.
In this tutorial, we will learn to:
Select Chemical compounds
Define a Thermodynamic package
Choose Units and Values and
Specify a Material stream
This tutorial is recorded using DWSIM version 5. 8 (Classic UI) Update 3 and Windows 10 OS
But, this process is identical in Linux, Mac OS X or FOSSEE OS on ARM.
You should have DWSIM installed on your machine.
Let us start by creating a new steady state simulation.
To open DWSIM, go to the Desktop.
Right-click on DWSIM and click Run as Administrator.
DWSIM window opens.
Close the Tasks window.
Go to File menu and select New Steady-state Simulation.
Simulation Configuration Wizard window opens.
Click on the Next button at the bottom of the window.
First, we will add the compounds.
In the Compounds Search tab, type Benzene.
Select Benzene from ChemSep database.
Under Added column, check the checkbox for Benzene.
We can also double-click anywhere on this line.
Similarly, add Toluene from ChemSep database.
Then click on Next button at the bottom to continue.
The Property Packages window opens.
As Benzene and Toluene form an ideal solution, we can choose Raoult's law.
From Available Property Packages list, double-click on Raoult’s Law.
Now click on the Next button at the bottom.
Next option is System of Units.
Under System of Units, we will select CGS.
Then click on the Finish button at the bottom.
Let us maximize the Simulation window.
The canvas at the centre is used to create the flowsheets.
We will now create a material stream.
At the bottom of the main simulation window, we can see an Object Palette.
It has a large collection of many useful chemical engineering objects.
Go to Streams tab.
From the displayed list, drag and drop a material stream to the flowsheet.
Let us arrange the stream.
Click on the material stream named as MSTR-000.
DWSIM has given the name MSTR-000 to this stream automatically. Let me change it.
On the left hand side of the flowsheet we can see the Property Editor Window.
Under General Info, type the Object as Inlet1. Press Enter.
We can see the name Inlet1 appearing below this stream in the flowsheet.
Now let us specify the feed stream compositions.
Under Input Data, click on Compound Amounts tab.
Choose the Basis as Mole Fractions, if not already selected.
By default, Mole Fractions is selected as Basis.
Now for Benzene, enter the Amount as 0.4 and press Enter.
For Toluene, enter 0.6 and press Enter.
On the right, click on Accept Changes button.
The total of the mole fractions appears on the right hand side.
If the total is not 1, DWSIM normalises the entries, so that the total becomes 1.
Now we will specify the Feed stream properties.
The Input Data tab shows all the properties of the stream.
DWSIM assigns default values to all properties.
Go to Input Data.
Under Stream Conditions tab, select Flash Spec as Temperature and Pressure (TP) if not already selected.
By default, Temperature and Pressure should already be selected as Flash Spec.
Change Temperature to 30 degree Centigrade and press Enter.
Change Pressure to 1 atmosphere and press Enter.
Change Molar Flow to 100 mol per second and press Enter.
Let us now save this file using the Save As option.
I will save it as stream.
Close the Property Editor Window.
We can always get back to the previous pop-up by double-clicking on the stream.
We will build on this material stream in the upcoming tutorials.
Let me go back to the slides.
Let's summarize.
In this tutorial, we have learnt to
Select Chemical compounds
Define a Thermodynamic package
Choose Units and Values and
Specify a material stream
Here are some assignments for you.
Choose Benzene and Toluene mole fractions that do not add up to 1.
Check how DWSIM normalises when you press Accept Changes button.
Go to the page where you defined mole fractions.
Check what the Normalize button does when the Total is not 1.
Go to the page where we defined the molar flow rate.
DWSIM automatically displays equivalent flow rates in other units.
Check if these values are consistent.
Create a stream consisting of Benzene, Toluene and Xylene.
Carry out the previous assignments for this stream also.
This brings us to the end of this tutorial.
Watch the video available at the following link. It summarizes the Spoken Tutorial project.
The Spoken Tutorial Project Team conducts workshops and gives certificates. For more details, please write to us.
Please post your times queries in this forum.
The FOSSEE team coordinates conversion of existing flowsheets into DWSIM.
We give honorarium and certificates for those who do this. For more details, please visit this site.
The FOSSEE team helps migrate commercial simulator labs to DWSIM.
We give honorarium and certificates for those who do this.
For more details, please visit this site
Spoken Tutorial and FOSSEE projects are funded by NMEICT, MHRD, Government of India.
We thank the DWSIM team for making it as an open source software.
This tutorial was originally recorded by Prof Kannan Moudgalya in May 2015. This is Kaushik Datta from IIT Bombay. Thanks for joining.