PoojaMoolya: Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- || 00:01 || Welcome to this tutorial on '''Simulating a Shortcut Distillation column''' in '''DWSIM.''' |- ||00:07 || In this tut..."

2021-04-30T10:44:14Z

Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- || 00:01 || Welcome to this tutorial on '''Simulating a Shortcut Distillation column''' in '''DWSIM.''' |- ||00:07 || In this tut..."

New page

{|border=1
||'''Time'''
||'''Narration'''
|-
|| 00:01
|| Welcome to this tutorial on '''Simulating a Shortcut Distillation column''' in '''DWSIM.'''
|-
||00:07
|| In this tutorial, we will learn to:

|-
|| 00:10
|| Simulate a '''Shortcut distillation''' column

|-
|| 00:13
|| Calculate '''Minimum number of stages '''

|-
|| 00:16
|| Calculate '''Minimum reflux ratio'''

|-
|| 00:19
|| Calculate '''Optimal Feed stage location'''

|-
|| 00:22
|| Calculate '''Condenser '''and '''Reboiler duty '''

|-
|| 00:26
|| This tutorial is recorded using

'''DWSIM version 5. 8 (Classic UI) Update 3 ''' and '''Windows 10''' OS

|-
|| 00:37
|| But, this process is identical in '''Linux, Mac OS X '''or '''FOSSEE OS on ARM'''.
|-
|| 00:43
|| To practise this tutorial, you should know to-

|-
|| 00:47
|| Add components to a '''flowsheet'''

|-
|| 00:50
|| Select '''thermodynamic packages'''

|-
|| 00:53
|| Add '''material''' and '''energy streams''' and specify their properties.

|-
|| 00:58
|| The prerequisite '''DWSIM''' tutorials are available on this website'''.'''

|-
|| 01:03
|| You can access these tutorials and all the associated files from this site.
|-
|| 01:09
||We will develop a '''flowsheet''' to determine '''Outlet stream''' properties after '''Shortcut''' '''Distillation'''.

|-
|| 01:15
|| Here we give '''Compounds, Thermodynamics '''and '''Inlet stream conditions.'''

|-
||01:21
|| Next, we give '''Shortcut Column Properties'''.

|-
|| 01:25
|| I have already opened '''DWSIM.'''
|-
|| 01:28
|| Go to '''File''' menu and select '''New Steady-state Simulation.'''
|-
|| 01:33
|| '''Simulation Configuration Wizard''' window opens.
|-
|| 01:35
|| Click on '''Next''' button at the bottom.
|-
|| 01:40
|| In the '''Compounds Search '''tab, type '''Benzene'''.
|-
|| 01:45
|| Select '''Benzene''' from '''ChemSep database. '''
|-
|| 01:49
|| Similarly, add '''Toluene.'''
|-
|| 01:52
|| Click the '''Next''' button at the bottom.
|-
|| 01:56
|| Now comes '''Property Packages.'''
|-
|| 01:59
|| From '''Available Property Packages''' list, double-click on''' Raoult’s Law'''.
|-
|| 02:04
|| At the bottom, click on the '''Next''' button.
|-
|| 02:08
|| Next option is '''System of Units.'''
|-
|| 02:12
|| Under '''System of Units''', select '''C5'''.
|-
|| 02:17
|| '''Pressure''' menu appears at the top of this list.

|-
|| 02:20
|| Select '''atm''' for atmosphere and press '''Enter'''.
|-
|| 02:25
|| Lastly, at the bottom, click on the '''Finish '''button.
|-
|| 02:30
|| Now maximize the '''Simulation''' window.
|-
|| 02:33
|| Now let’s insert a '''feed stream''' that has to be distilled.
|-
|| 02:38
|| At the bottom of the main '''simulation''' window, go to '''Streams.'''
|-
|| 02:43
|| From the displayed list, drag and drop a '''Material Stream '''to the '''Flowsheet'''.
|-
|| 02:48
|| Click on the '''material stream''' named '''MSTR 000.'''
|-
|| 02:53
|| Let’s change the name of this '''stream''' to '''Feed.'''

Press '''Enter'''.
|-
|| 02:59
|| Now we will specify the '''Feed stream''' compositions.
|-
|| 03:03
|| For this under '''Input Data''' click on '''Compound Amounts''' tab.
|-
|| 03:09
|| Choose the '''Basis''' as '''Mole Fractions''', if not already selected.

|-
|| 03:14
|| By default, '''Mole Fractions''' is already selected as '''Basis.'''
|-
||03:19
|| For Benzene enter '''0.4''' and press '''Enter'''.
|-
|| 03:24
|| For Toluene enter '''0.6''' and press '''Enter'''.
|-
|| 03:30
|| On the right, click on the '''Accept Changes''' button.
|-
|| 03:34
|| Now we will specify the '''Feed stream''' properties.
|-
|| 03:38
|| Go to '''Input Data.'''

|-
|| 03:40
|| Under '''Stream Conditions '''tab, select '''Flash Spec''' as''' Pressure and Vapor Fraction.''' '''(PVF)'''
|-
||03:48
|| Change '''Pressure''' to '''1 atmosphere '''and press '''Enter.'''
|-
|| 03:53
|| Change '''Molar flow ''' to '''100 Kmol per hour '''and press '''Enter.'''
|-
|| 03:59
|| Now locate '''Vapor Phase Mole Fraction.'''

|-
|| 04:03
|| Here the default value is '''0.'''

|-
|| 04:05
|| This indicates that the liquid is saturated.

Let us leave it as it is.
|-
||04:10
|| Now let us insert a '''Shortcut Column '''into the '''flowsheet'''.
|-
|| 04:15
|| At the bottom of the main '''simulation''' window, go to '''Columns '''tab.

|-
|| 04:20
|| The '''Shortcut Column''' is based on '''Fenske-Underwood-Gilliland''' method.
|-
|| 04:25
|| From the displayed list, drag and drop a '''Shortcut Column '''to the '''Flowsheet'''
|-
||04:30
|| Now let us insert two '''output streams.'''
|-
|| 04:34
|| To do that, let us drag one '''Material Stream.'''
|-
||04:38
|| Leave that '''stream''' as unspecified.
|-
|| 04:42
|| Then we will change the name of this '''stream '''to '''Distillate.'''
|-
|| 04:47
|| Next, we will insert another '''Material Stream.'''
|-
||04:51
|| Leave that '''stream''' as unspecified.
|-
|| 04:54
|| Let us change the name of this '''stream''' to '''Bottoms.'''

Press '''Enter'''.
|-
|| 05:00
|| Let us now insert two '''Energy streams '''for '''Condenser duty '''and '''Reboiler duty.'''
|-
|| 05:06
|| Go to '''Streams''' tab.

From the displayed list, drag and drop two '''Energy Streams''' to the '''Flowsheet'''.
|-
|| 05:14
|| Let us now arrange it as required.
|-
|| 05:17
|| Name these '''streams''' as '''C-Duty '''and '''R-Duty.'''
|-
|| 05:23
|| We are now ready to specify the '''Shortcut distillation column.'''

So let’s click on it.
|-
|| 05:29
|| On the left, we can see a tab displaying properties related to the '''Shortcut Column.'''
|-
|| 05:35
|| Under '''Connections,''' click on the drop-down against '''Feed Stream.'''

Select '''Feed.'''
|-
|| 05:43
|| Click on the drop-down against '''Distillate Stream''' and select '''Distillate.'''
|-
|| 05:50
|| Click on the drop-down against '''Bottoms Stream''' and select '''Bottoms.'''
|-
|| 05:57
|| Click on the drop-down against '''Condenser Duty''' and select '''C-Duty.'''
|-
||06:04
|| Click on the drop-down against '''Reboiler Duty''' and select '''R-Duty.'''
|-
||06:10
|| This completes the connectivity of the '''flowsheet'''.
|-
|| 06:13
|| Now, go to the '''Calculation Parameters.'''

|-
|| 06:17
|| This section is used to specify various attributes of a '''Shortcut Column'''.
|-
|| 06:22
|| Click on the drop-down against '''Light Key Compound (LK)''' and select '''Benzene.'''
|-
|| 06:31
|| Click on the drop-down against '''Heavy Key Compound (HK)''' and select '''Toluene.'''
|-
|| 06:39
|| Now go to '''Condenser Type.'''

By default, it is '''Total Condenser. '''

|-
|| 06:45
|| If a '''partial condenser''' is required, we can change it here.
|-
|| 06:49
|| Click on the field against '''LK Mole Fraction in Bottoms''' and enter it as '''0.01''' and press '''Enter.'''
|-
|| 06:58
|| Click on the field against '''HK Mole Fraction in Distillate''' and enter it as '''0.01'''

Then press '''Enter.'''
|-
||07:08
|| Let us go back to the slides.
|-
|| 07:11
|| Recall that we want our '''reflux ratio''' to be '''1.4 '''times the minimum''' reflux ratio.'''

|-
|| 07:18
|| So let us check the minimum''' reflux ratio.'''
|-
|| 07:22
|| For this, let us run '''simulation''' once.
|-
|| 07:26
|| To do this, click on '''Solve Flowsheet''' button.
|-
||07:30
|| Click on the '''Distillation Column'''.

|-
|| 07:33
||From the '''Property Editor Window''', locate '''Results''' section.
|-
|| 07:38
|| Now we can see that '''Minimum Reflux Ratio''' is '''1.655'''.

So the actual '''Reflux Ratio''' will become '''2.317'''.
|-
|| 07:49
|| Next let us enter the''' reflux ratio. '''

|-
|| 07:53
|| Look at the '''Shortcut Column''' results.

|-
|| 07:56
|| Here note the '''Actual Number of Stages''' and '''Optimal Feed Stage'''.

We can see that these values are '''NaN'''.

|-
|| 08:05
|| This is because the default value of '''reflux ratio '''is '''1.5'''.

It is less than minimum '''reflux ratio'''.
|-
|| 08:14
|| Now let us enter the '''Reflux Ratio.'''

|-
|| 08:18
|| Enter the value as '''1.655 into 1.4''' and press '''Enter.'''

|-
|| 08:26
|| Now the '''Reflux Ratio''' is '''2.317.
|-
|| 08:31
|| Click on the field against '''Condenser Pressure''' and enter it as '''1 atmosphere'''

and press '''Enter.'''
|-
|| 08:40
|| Click on the field against '''Reboiler Pressure''' and enter it as '''1 atmosphere '''.

Then press '''Enter.'''
|-
||08:48
|| Now we will run the '''simulation'''.
|-
|| 08:51
|| To do this, click on the '''Solve Flowsheet''' button on the toolbar.
|-
|| 08:56
|| When calculations are completed, click on the '''Shortcut column.'''
|-
|| 09:01
|| From the '''Property Editor Window''', locate '''Results '''section.

|-
|| 09:06
|| This shows all the required results like:

|-
|| 09:09
|| '''Minimum Reflux Ratio'''

|-
|| 09:11
|| '''Minimum Number of Stages'''

|-
|| 09:14
|| '''Actual Number of Stages'''

|-
|| 09:17
|| '''Optimal Feed Stage'''

|-
|| 09:19
|| '''Condenser Duty, Reboiler Duty, etc'''
|-
|| 09:24
|| I have tabulated these results in a slide.
|-
|| 09:28
|| Let us go back to the simulation.
|-
|| 09:31
|| Let me save this.

I will save it as '''shortcut-end.'''
|-
||09:38
|| Let's summarize.
|-
||09:40
|| In this tutorial, we have learnt to:

|-
|| 09:42
|| Simulate a '''Shortcut distillation''' column, Calculate '''Minimum number of stages''', Calculate '''Minimum reflux ratio''', Calculate '''Optimal Feed stage location''' , Calculate '''Condenser '''and '''Reboiler duty '''
|-
||09:58
|| As an assignment,

Repeat this simulation with different '''compounds.''', Different '''feed conditions.'''
|-
||10:06
||Different '''Column Properties.'''

|-
|| 10:08
|| This brings us to the end of this tutorial.
|-
|| 10:11
|| Watch the video available at the following link.

It summarizes the Spoken Tutorial project.
|-
|| 10:17
|| The Spoken Tutorial Project Team

Conducts workshops and Gives certificates.

|-
|| 10:22
|| For more details, please write to us.
|-
||10:25
|| Please post your time queries in this forum.
|-
|| 10:29
|| The '''FOSSEE''' team coordinates conversion of existing '''flowsheets''' into '''DWSIM'''.

|-
|| 10:35
|| We give honorarium and certificates for those who do this.

For more details, please visit this site.
|-
|| 10:44
|| 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
|-
||10:58
|| '''Spoken Tutorial''' and '''FOSSEE''' projects are funded by '''NMEICT, MHRD''', Government of India.
|-
|| 11:07
|| 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.

|-
|| 11:19
|| This is Kaushik Datta from IIT Bombay. Thanks for joining.
|-
|}

DWSIM/C2/Shortcut-Distillation/English-timed - Revision history

PoojaMoolya: Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- || 00:01 || Welcome to this tutorial on '''Simulating a Shortcut Distillation column''' in '''DWSIM.''' |- ||00:07 || In this tut..."