DWSIM/C2/Introduction-to-Flowsheeting/English - Revision history

Kaushik Datta at 05:13, 17 January 2020

2020-01-17T05:13:27Z

Kaushik Datta at 11:10, 16 January 2020

2020-01-16T11:10:43Z

Kaushik Datta: Created page with "{|border=1 ||'''Visual Cue''' ||'''Narration''' |- || '''Slide Number 1''' '''Title Slide''' || Welcome to this tutorial on '''Introduction to flowsheeting''' in '''DWSIM'''..."

2020-01-09T09:25:03Z

Created page with "{|border=1 ||'''Visual Cue''' ||'''Narration''' |- || '''Slide Number 1''' '''Title Slide''' || Welcome to this tutorial on '''Introduction to flowsheeting''' in '''DWSIM'''..."

New page

{|border=1
||'''Visual Cue'''
||'''Narration'''
|-
|| '''Slide Number 1'''

'''Title Slide'''
|| Welcome to this tutorial on '''Introduction to flowsheeting''' in '''DWSIM'''
|-
|| '''Slide Number 2'''

'''Learning Objectives'''
|| In this tutorial, we will learn to:
* Simulate a '''mixer'''
* Follow it up with a '''flash separator'''
* Give a '''two phase feed '''
|-
|| '''Slide Number 3'''

'''System Requirements'''

|| 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'''.
|-
|| '''Slide Number 4'''

'''Prerequisites'''
|| To practice this tutorial, you should have an exposure to '''DWSIM'''.

The prerequisite '''DWSIM '''tutorials are mentioned on our website.
|-
|| '''Slide Number 5'''

'''Code Files'''
|| '''flow-begin''' file used in the tutorial is provided as a '''Code file''' on this tutorial page.

Download the file from '''Code Files''' link.
|-
|| Show '''DWSIM interface'''
|| I have already opened '''DWSIM''' on my machine.
|-
||
|| Please ensure that '''DWSIM''' opens as an '''administrator'''.
|-
|| '''File''' >> '''Open File'''
|| Go to '''File''' menu and click on '''Open File'''.
|-
|| Point to the file on the '''Desktop'''.

Select the file from the '''Desktop'''.

|| I have already downloaded and extracted the '''flow-begin''' file on my '''Desktop'''.

Select the file from the '''Desktop'''.

This file already contains all the '''material streams''' necessary for this tutorial.
|-
|| Point to the '''Inlet1''' and '''Inlet2''' streams
|| You can see two streams '''Inlet1''' and '''Inlet2''' in the '''flowsheet''' canvas.
|-
||
|| Let us go back to the slides.
|-
|| '''Slide Number 6'''

'''Components: '''Benzene & Toluene

'''Inlet Stream 1:'''

Mole Fraction(Benzene): 0.8

Mole Fraction(Toluene): 0.2

Molar Flow Rate: 100 mol/s

Temperature: 25 degree C

Pressure: 1 atm

'''Inlet Stream 2:'''

Mole Fraction(Benzene): 0.2

Mole Fraction(Toluene): 0.8

Molar Flow Rate: 100 mol/s

Temperature: 25 degree C

Pressure: 1 atm
|| It summarises the contents of this file.

When we mix these '''streams''', we get '''equimolar composition.'''
|-
||
|| Let us go back to '''DWSIM'''.
|-
|| Select '''Inlet 1'''
|| We will now modify the '''streams''', so as to have vapor in them.

Select '''Inlet 1'''.
|-
|| Point to '''Property Editor Window.'''
|| On the left, go to the '''Property Editor Window.'''
|-
|| Go to '''Input Data.'''

'''Stream Conditions >> Flash Spec >> Pressure and Vapor Fraction.''' '''(PVF)'''
|| Go to '''Input Data.'''

Under '''Stream Conditions '''tab, select '''Flash Spec''' as''' Pressure and Vapor Fraction.''' '''(PVF)'''
|-
|| '''Vapor Phase Mole Fraction''' >> '''1'''

|| Type '''Vapor Phase Mole Fraction '''as '''1''' and press '''Enter.'''

Here the entire '''stream''' is a '''vapor'''.
|-
||
|| In a similar way, make '''Inlet2''' to have '''50% vapor fraction. '''
|-
|| Select '''Inlet2'''
|| Select '''Inlet 2'''.
|-
|| '''Stream Conditions >> Flash Spec >> Pressure and Vapor Fraction.''' '''(PVF)'''
|| Under '''Stream Conditions '''tab, select '''Flash Spec''' as''' Pressure and Vapor Fraction.''' '''(PVF)'''
|-
|| '''Vapor Phase Mole Fraction''' >> '''0.5'''
|| Type '''Vapor Phase Mole Fraction '''as '''0.5''' and press '''Enter'''.
|-
||
|| Now let us insert a '''mixer''' to the '''flowsheet'''.
|-
|| Point to '''Mixers/Splitters'''
|| At the bottom of the main '''simulation''' window, go to '''Mixers/Splitters.'''
|-
|| Click and drag '''Stream Mixer '''to the flowsheet
|| From the displayed list, drag and drop a '''Stream Mixer '''to the '''Flowsheet'''
|-
|| Click '''MIX-002'''
|| Click on the '''mixer''' named '''MIX-002.'''
|-
|| Type '''Mixer'''
|| We will name it as '''Mixer.'''
|-
|| Click and drag '''Material Stream''' to the flowsheet
|| Now let us insert an '''output stream''' for this '''mixer'''.
|-
||
|| Click on '''Streams '''tab.
|-
|| Click and drag '''Material Stream '''to the flowsheet
|| From the displayed list, drag and drop a '''Material Stream '''to the '''Flowsheet'''.
|-
| align=center |
|| We will leave that '''stream''' as unspecified.
|-
|| Type '''mixer-out'''
Press '''Enter'''.

|| Let’s change the name of this '''stream''' to '''mixer-out.'''

Press '''Enter'''.
|-
|| Click '''Mixer'''
|| We are now ready to specify the '''Mixer.'''

So let’s click on it.
|-
|| Point to the tab on the left.
|| On the left, we can see a tab displaying properties related to the '''Mixer.'''
|-
|| Point to the '''Connections''' tab
|| Here we can see that the '''mixer''' has up to 6 '''inlet streams'''.
|-
|| Go to '''Connections'''

Click on drop down arrow against '''Inlet Stream 1'''

Select''' Inlet1.'''
|| Under '''Connections,''' click on the drop-down against '''Inlet Stream 1.'''

Select '''Inlet1.'''
|-
|| Click on drop down arrow against '''Inlet Stream 2'''

Select''' Inlet2.'''
|| Click on the drop-down against '''Inlet Stream 2''' and select '''Inlet2.'''
|-
|| Click on drop down arrow against '''Outlet Stream'''

Select''' mixer-out'''
|| Click on the drop-down against '''Outlet Stream '''and select '''mixer-out.'''
|-
||
|| We can move the '''streams''' to make them better aligned.
|-
|| Cursor to the '''mixer'''
|| The '''mixer''' is red, as it is not '''simulated''' yet.
|-
|| Click on the '''mixer'''.
|| Click on the '''mixer'''.
|-
|| Cursor to '''Calculation Parameters'''

Cursor to '''Pressure Calculation'''
|| Go to '''Calculation Parameters'''.

Click on the drop-down against '''Pressure Calculation'''.

We can see there are three different modes of''' Pressure Calculation''':
* '''Inlet Minimum'''
* '''Inlet Average'''
* '''Inlet Maximum'''
|-
|| Point to '''Inlet Minimum'''
|| Select '''Inlet Minimum''' if '''outlet pressure''' has to be minimum of all''' inlet streams'''.
|-
|| Point to '''Inlet Average'''
|| Select '''Inlet Average''' if '''outlet pressure''' has to be average of all '''inlet streams'''.
|-
|| Point to '''Inlet Maximum'''
|| Select '''Inlet Maximum '''if '''outlet pressure''' has to be maximum of all '''inlet streams'''.
|-
||
|| Here both the '''inlet streams''' are at''' 1 atm pressure.'''

So, the '''Pressure Calculation''' mode will not matter here.

By default, '''Inlet Minimum''' is selected, we will leave it unchanged.
|-
||
|| Now we will run the '''simulation.'''
|-
|| Click on '''Solve Flowsheet''' button
|| So, click on '''Solve Flowsheet''' button on the toolbar.
|-
|| Point to the '''Mixer'''
|| The '''mixer''' has become blue now.

It means that the calculations are completed.
|-
|| Click on '''mixer-out '''and hover mouse at '''Properties'''

Point to '''Property Editor Window'''

Hover mouse at Results
|| Now click on '''mixer-out''' stream.

Go to the '''Property Editor Window''' of the '''Mixer.'''

Locate '''Results''' tab.
|-
|| Navigate to '''Compounds >> Amounts >> Mixture.'''
|| Navigate to '''Compounds >> Amounts >> Mixture.'''
|-
| align=center |
|| We can verify that its composition is as expected.

It has '''equimolar composition. '''
|-
| align=center |
|| Now let us insert a '''Gas-Liquid Separator'''.
|-
||
|| It can be used to '''simulate VLE, LLE '''and''' VLLE''' systems.
|-
|| Point to '''Separators/Tanks'''
|| At the bottom of the main '''simulation''' window, go to '''Separators/Tanks''' tab.

|-
|| Click and drag '''Gas-Liquid Separator '''to the flowsheet
|| From the displayed list, drag and drop a '''Gas-Liquid Separator '''to the '''Flowsheet'''.
|-
|| Click '''SEP-004'''
|| Click on the '''Gas-Liquid Separator''' named '''SEP-004.'''
|-
||
|| Now we will connect two '''output streams''' to the '''Separator'''.
|-
|| Click and drag '''Material Stream''' to the flowsheet
|| Drag and drop a '''Material Stream''' to the '''flowsheet'''.

We will leave that '''stream''' as unspecified, as its properties are to be calculated.
|-
|| Type '''Vapour'''
|| We will name it as '''Vapour'''.
|-
|| Type '''Liquid'''
|| Similarly, add another '''stream''' and name it as '''Liquid.'''
|-
|| Click '''Separator Vessel'''
|| We are now ready to specify the '''Gas-Liquid Separator.'''

So let’s click on it.
|-
|| Point to the tab on the left.
|| On the left, we can see a tab displaying properties related to the '''Gas-Liquid Separator.'''
|-
|| Go to '''Connections'''

Click on drop down arrow against '''Inlet Stream 1'''

Select''' mixer-out.'''
|| Under '''Connections,''' click on the drop-down against '''Inlet Stream 1''' and select '''mixer-out.'''
|-
|| Point to the other '''Inlet Streams'''
|| We can now connect a total of five more''' input streams. '''

The '''Separator '''mixes all the '''streams''' and separates.
|-
|| Cursor to the '''Energy Stream''' section
|| It also has a '''port''' to connect an '''Energy Stream'''.
|-
|| Click on the drop down against '''Vapour Stream'''

Select''' Vapour.'''
|| Click on the drop-down against '''Vapour Stream''' and select '''Vapour.'''
|-
|| Click on the drop down against '''Light Liquid Stream'''

Select''' Liquid.'''
|| Similarly, click on the drop-down against '''Light Liquid Stream'''.

Select '''Liquid.'''
|-
|| Click on '''Solve Flowsheet''' button.
||Click on '''Solve Flowsheet''' button on the toolbar.
|-
||
|| Now we will check whether the vapor and liquid are split properly in the '''separator'''.
|-
|| Click on '''Vapour '''

Point to '''Property Editor Window'''

Hover mouse at '''Results'''
|| Now click on '''Vapour stream.'''

From the '''Property Editor Window''', locate '''Results''' section.
|-
|| Navigate to '''Compounds >> Amounts >> Vapor.'''
|| Navigate to '''Compounds >> Amounts >> Mixture.'''
|-
|| Point to the value
|| The '''mole fraction''' of '''Benzene''' is '''0.55.'''
|-
||
|| We can do a check on the working of the '''Mixer '''also'''.

|-
|| Click on '''Mixer '''

Point to '''Property Editor Window'''

Hover mouse at '''Results'''
|| Now click on '''mixer-out'''.

From the '''Property Editor Window''', locate '''Results''' section.
|-
|| Navigate to '''Compounds >> Amounts >> Mixer.'''
|| Navigate to '''Compounds >> Amounts >> Vapor.'''
|-
|| Point to the value
|| The '''mole fraction''' of '''Benzene''' is '''0.55.'''
|-
|| Click on '''File '''and Click '''Save As'''
|| Let us now save this file using the '''Save As''' option.
|-
|| Type '''flow-end'''
|| I will save it as '''flow-end.'''
|-
||
||Let's summarise.
|-
|| '''Slide Number 7'''

'''Summary'''
|| In this tutorial, we have learnt to
* Simulate a '''mixer'''
* Follow it up with a '''flash separator'''
* Give a '''two phase feed '''
|-
||
|| Here are some assignments for you.
|-
||'''Assignment 1 slide'''
|| The assignment in this slide has to do with''' mass balances. '''

I use blue colour to indicate '''streams''' and equipment.
|-
||
|| Let us go to the next assignment.
|-
||'''Assignment 2 slide'''
|| You have to verify '''mole fractions''' as mentioned in this slide.
|-
||'''Assignment 3 slide'''
|| The third assignment has to do with the '''Separator.'''

Recall that we mentioned that it could be used to mix '''streams'''.

Remove the '''mixer''' and '''mixer-out''' and try it out.

See if you get the same answers.
|-
||'''Assignment 4 slide'''
||In the next assignment, you will do the separation at a higher temperature.
|-
|| Click '''Separator'''

'''Property Editor Window''' >> '''Calculation Parameters'''
|| Click on '''Separator.'''

From the '''Property Editor Window''', go to '''Calculation Parameters''' section.
|-
|| Click on '''Override Sep. Temperature''' check box.
|| Select the '''Override Sep. Temperature''' check-box.
|-
|| Type '''100'''
|| In the resulting field, change the value to '''100.'''
|-
|| Click and drag '''Energy Stream''' to the flowsheet
|| Bring '''Energy stream''' from '''Object Palette''' to the '''flowsheet'''.

Connect this '''stream''' to the '''Energy Stream''' of the '''Separator'''.

'''Simulate''' and analyse your results.
|-
|| '''Slide Number 8'''

'''About the Spoken Tutorial Project'''

|| Watch the video available at the following link.

[http://spoken-tutorial.org/ http://spoken-tutorial.org/]

It summarizes the Spoken Tutorial project.
|-
|| '''Slide Number 9'''

'''Spoken Tutorial Workshops'''

|| The Spoken Tutorial Project Team conducts workshops and gives certificates.

For more details, please write to us.
|-
|| '''Slide Number 10'''

'''Forum Slide'''

Do you have questions in this '''Spoken Tutorial?'''

Please visit this site

Choose the minute and second where you have the question.

Explain your question briefly.

Someone from the FOSSEE team will answer them.
|| Please post your times queries in this forum.
|-
|| '''Slide Number 11'''

'''DWSIM Flowsheeting Project'''

|| 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.
|-
|| '''Slide Number 12'''

'''Lab Migration Project'''

|| 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
|-
|| '''Slide Number 13'''

'''Acknowledgements'''
|| '''Spoken Tutorial''' and '''FOSSEE''' projects are funded by '''NMEICT, MHRD''', Government of India.
|-
|| '''Slide Number 14'''

'''Thanks'''
|| 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.
|-
|}

@@ Line 418: / Line 418: @@
 ||'''Assignment 4 slide'''
 ||In the next assignment, you will do the separation at a higher temperature.
-'''Property Editor Window''' >> '''Calculation Parameters'''
+Click on '''Separator'''.
-|| Click on '''Separator.'''
-From the '''Property Editor Window''', go to '''Calculation Parameters''' section.
+Change '''Override separation temperature''' value to 100 degree C.
-|-
-|| Click on '''Override Sep. Temperature''' check box.
-|| Select the '''Override Sep. Temperature''' check-box.
-|-
-|| Type '''100'''
-|| In the resulting field, change the value to '''100.'''
-|-
-|| Click and drag '''Energy Stream''' to the flowsheet
-|| Bring '''Energy stream''' from '''Object Palette''' to the '''flowsheet'''.
-Connect this '''stream''' to the '''Energy Stream''' of the '''Separator'''.
+Bring Energy stream from '''Object Palette''' to the flowsheet.
-'''Simulate''' and analyse your results.
+Connect this stream to the '''Separator'''.
 |-
 || '''Slide Number 8'''

@@ Line 29: / Line 29: @@
 '''Prerequisites'''
-|| To practice this tutorial, you should have an exposure to '''DWSIM'''.
+|| To practice this tutorial, you should have an introductory exposure to '''DWSIM'''.
 The prerequisite '''DWSIM '''tutorials are mentioned on our website.
@@ Line 147: / Line 147: @@
 |-
 || Type '''Mixer'''
-|| We will name it as '''Mixer.'''
 |-
 || Click and drag '''Material Stream''' to the flowsheet
-|| Now let us insert an '''output stream''' for this '''mixer'''.
+|| Now let us insert an '''output stream''' for the '''mixer'''.
 |-
 ||
@@ Line 239: / Line 243: @@
 |-
 || Click on '''Solve Flowsheet''' button
-|| So, click on '''Solve Flowsheet''' button on the toolbar.
+|| So, click on the '''Solve Flowsheet''' button on the toolbar.
 |-
 || Point to the '''Mixer'''
@@ Line 272: / Line 276: @@
 |-
 || Point to '''Separators/Tanks'''
-|| At the bottom of the main '''simulation''' window, go to '''Separators/Tanks''' tab.
+|| At the bottom of the main '''simulation''' window, go to '''Separators/Tanks'''.
 |-
@@ Line 285: / Line 289: @@
 |-
 || Click and drag '''Material Stream''' to the flowsheet
-|| Drag and drop a '''Material Stream''' to the '''flowsheet'''.
+|| Drag and drop a '''Material Stream''' to the '''flowsheet''' area.
 We will leave that '''stream''' as unspecified, as its properties are to be calculated.
@@ Line 293: / Line 297: @@
 |-
 || Type '''Liquid'''
-|| Similarly, add another '''stream''' and name it as '''Liquid.'''
+|| Similarly, add another '''material stream''' and name it as '''Liquid.'''
 |-
 || Click '''Separator Vessel'''
@@ Line 308: / Line 312: @@
 Select''' mixer-out.'''
-|| Under '''Connections,''' click on the drop-down against '''Inlet Stream 1''' and select '''mixer-out.'''
+|| Under '''Connections,''' click on the drop-down against '''Inlet Stream 1'''.
 |-
 || Point to the other '''Inlet Streams'''
@@ Line 331: / Line 337: @@
 |-
 || Click on '''Solve Flowsheet''' button.
-||Click on '''Solve Flowsheet''' button on the toolbar.
+||Then click on '''Solve Flowsheet''' button on the toolbar.
 |-
 ||
@@ Line 384: / Line 390: @@
 || In this tutorial, we have learnt to
 * Simulate a '''mixer'''
-* Follow it up with a '''flash separator'''
+* Follow it up with a '''flash separator''' and
 * Give a '''two phase feed '''
 |-
@@ Line 465: / Line 471: @@
 Someone from the FOSSEE team will answer them.
-|| Please post your times queries in this forum.
+|| Please post your timed queries in this forum.
 |-
 || '''Slide Number 11'''