Difference between revisions of "DWSIM/C2/Calculation-of-Bubble-Points-and-Dew-Points/English-timed"

From Script | Spoken-Tutorial
Jump to: navigation, search
(Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- || 00:01 ||Welcome to this tutorial on '''Calculation of Bubble Points and Dew Points''' in '''DWSIM.''' |- || 00:07 ||In this t...")
 
 
Line 9: Line 9:
 
|-
 
|-
 
|| 00:07
 
|| 00:07
−
||In this tutorial, we will learn to generate:  '''Bubble Point Temperature''' at a given pressure
+
||In this tutorial, we will learn to generate:  '''Bubble Point Temperature''' at a given pressure,
  
 
|-
 
|-
 
|| 00:15
 
|| 00:15
−
|| '''Dew Point Temperature '''at a given pressure
+
|| '''Dew Point Temperature '''at a given pressure.
  
 
|-
 
|-
 
||00:19
 
||00:19
−
||To record this tutorial, I am using  '''DWSIM 5.2 (Classic UI)''' and '''Windows 10'''
+
||To record this tutorial, I am using  '''DWSIM 5.2 (Classic UI)''' and '''Windows 10'''.
  
 
|-
 
|-
 
|| 00:28
 
|| 00:28
−
||The process demonstrated in this tutorial is identical in other OS also, such as-
+
||The process demonstrated in this tutorial is identical in other '''OS''' also such as-
  
 
'''Linux''',
 
'''Linux''',
Line 31: Line 31:
 
|-
 
|-
 
||00:40
 
||00:40
−
||To practice this tutorial, you should know to: Add components to a '''flowsheet'''
+
||To practice this tutorial, you should know to: add components to a '''flowsheet''',
  
 
|-
 
|-
 
|| 00:46
 
|| 00:46
−
||  Select '''thermodynamic '''packages and  Add '''material stream''' and specify their properties.
+
||  select '''thermodynamic '''packages and  add '''material stream''' and specify their properties.
  
 
|-
 
|-
 
||00:54
 
||00:54
−
||The prerequisite tutorials are mentioned on our website, '''spoken-tutorial.org'''
+
||The prerequisite tutorials are mentioned on our website '''spoken-tutorial.org'''
  
 
|-
 
|-
Line 48: Line 48:
 
||01:05
 
||01:05
 
||In this tutorial, using '''DWSIM''', we will calculate:
 
||In this tutorial, using '''DWSIM''', we will calculate:
−
 
  
 
1) '''Bubble Point Temperature''' at '''2 bar'''
 
1) '''Bubble Point Temperature''' at '''2 bar'''
Line 76: Line 75:
 
|-
 
|-
 
||01:41
 
||01:41
−
||Now, in the '''Compounds Search '''tab, type '''Methane.'''
+
||Now, in the '''Compounds Search '''tab, type: '''Methane.'''
  
 
|-
 
|-
Line 128: Line 127:
 
|-
 
|-
 
||02:36
 
||02:36
−
||From '''Default Flash Algorithm '''select '''Nested Loops(VLE)'''
+
||From '''Default Flash Algorithm, '''select '''Nested Loops(VLE)'''.
  
 
|-
 
|-
Line 160: Line 159:
 
|-
 
|-
 
||03:12
 
||03:12
−
||In the '''Filter List '''tab, type '''Material Stream.'''
+
||In the '''Filter List '''tab, type: '''Material Stream.'''
  
 
|-
 
|-
Line 200: Line 199:
 
|-
 
|-
 
||04:00
 
||04:00
−
||Now let us specify the '''feed stream compositions'''.
+
||Now, let us specify the '''feed stream compositions'''.
  
 
|-
 
|-
Line 212: Line 211:
 
|-
 
|-
 
||04:18
 
||04:18
−
||Now for '''Methane''', type the '''Amount '''as '''0.05 '''and press '''Enter.'''
+
||Now, for '''Methane''', type the '''Amount '''as '''0.05 '''and press '''Enter.'''
  
 
|-
 
|-
Line 256: Line 255:
 
|-
 
|-
 
||05:20
 
||05:20
−
||In the '''Add Utility '''window under '''Object Type''', select '''Material Streams.'''
+
||In the '''Add Utility '''window, under '''Object Type''', select '''Material Streams.'''
  
 
|-
 
|-
Line 268: Line 267:
 
|-
 
|-
 
||05:35
 
||05:35
−
||Then at the bottom, click on the '''Add Utility''' button.
+
||Then, at the bottom, click on the '''Add Utility''' button.
  
 
|-
 
|-
Line 284: Line 283:
 
|-
 
|-
 
|| 05:55
 
|| 05:55
−
|| Under '''Settings''', Click on '''Bubble Points''' tab.
+
|| Under '''Settings''', click on '''Bubble Points''' tab.
  
 
|-
 
|-
Line 312: Line 311:
 
|-
 
|-
 
|| 06:30
 
|| 06:30
−
|| We will not change any '''temperature value''' as we are doing a '''PVF Flash'''.
+
|| We will not change any temperature value as we are doing a '''PVF Flash'''.
  
 
|-
 
|-
Line 332: Line 331:
 
|-
 
|-
 
|| 06:54
 
|| 06:54
−
|| So, here also, let the '''Initial Flash''' method be '''PVF.'''
+
|| So, here also let the '''Initial Flash''' method be '''PVF.'''
  
 
|-
 
|-
Line 378: Line 377:
 
|-
 
|-
 
||07:58
 
||07:58
−
||Next we have to find '''Dew point temperature''' at '''10 bar.'''
+
||Next, we have to find '''Dew point temperature''' at '''10 bar.'''
  
 
|-
 
|-
Line 410: Line 409:
 
|-
 
|-
 
||08:37
 
||08:37
−
||Under '''Input data''', select '''Flash Spec''' as '''Pressure and Vapor Fraction (PVF)'''
+
||Under '''Input data''', select '''Flash Spec''' as '''Pressure and Vapor Fraction (PVF)'''.
  
 
|-
 
|-
 
||08:44
 
||08:44
−
||Type '''Vapor Phase Mole Fraction '''as '''0''' and press Enter.
+
||Type '''Vapor Phase Mole Fraction '''as '''0''' and press '''Enter'''.
  
 
|-
 
|-
 
||08:50
 
||08:50
−
||And '''Pressure''' as 2''' bar''' and press '''Enter'''.
+
||And, '''Pressure''' as '''2 bar''' and press '''Enter'''.
  
 
|-
 
|-
Line 438: Line 437:
 
|-
 
|-
 
||09:16
 
||09:16
−
||Let the '''Flash Spec''' be same as''' Pressure and Vapor Fraction (PVF)'''
+
||Let the '''Flash Spec''' be same as''' Pressure and Vapor Fraction (PVF)'''.
  
 
|-
 
|-
Line 450: Line 449:
 
|-
 
|-
 
||09:32
 
||09:32
−
||Now check the temperature which is '''87.396 degree C.'''
+
||Now, check the temperature which is '''87.396 degree C.'''
  
 
|-
 
|-
Line 466: Line 465:
 
|-
 
|-
 
||09:48
 
||09:48
−
||In this tutorial, we have learnt to generate: '''Bubble Point Temperature''' at a given pressure
+
||In this tutorial, we have learnt to generate: '''Bubble Point Temperature''' at a given pressure,
  
 
|-
 
|-
 
||09:54
 
||09:54
−
|| '''Dew Point Temperature '''at a given pressure
+
|| '''Dew Point Temperature '''at a given pressure.
  
 
|-
 
|-
 
||09:57
 
||09:57
−
||As an assignment, Calculate the following for the given '''component system''' and '''inlet conditions'''
+
||As an assignment, calculate the following for the given '''component system''' and '''inlet conditions'''.
  
 
|-
 
|-
 
||10:04
 
||10:04
−
|| Calculate '''Bubble Point Pressure''' at '''20 degree C'''
+
|| Calculate '''Bubble Point Pressure''' at '''20 degree Celsius'''.
  
 
|-
 
|-
 
||10:08
 
||10:08
−
|| Calculate '''Dew Point Pressure''' at '''60 degree C'''
+
|| Calculate '''Dew Point Pressure''' at '''60 degree Celsius'''.
  
 
|-
 
|-
Line 490: Line 489:
 
'''http://spoken-tutorial.org/ '''
 
'''http://spoken-tutorial.org/ '''
  
−
It summarizes the Spoken Tutorial project.
+
It summarizes the '''Spoken Tutorial''' project.
  
 
|-
 
|-
 
||10:19
 
||10:19
−
||The Spoken Tutorial Project Team
+
||The Spoken Tutorial Project Team conducts workshops and gives certificates.  For more details, please write to us.
−
 
+
−
Conducts workshops and Gives certificates.  For more details, please write to us.
+
  
 
|-
 
|-
Line 504: Line 501:
 
|-
 
|-
 
||10:31
 
||10:31
−
||The '''FOSSEE '''team coordinates conversion of existing flow sheets into '''DWSIM'''.
+
||The '''FOSSEE '''team coordinates conversion of existing '''flow sheet'''s into '''DWSIM'''.
  
 
|-
 
|-

Latest revision as of 22:11, 25 September 2018

Time Narration
00:01 Welcome to this tutorial on Calculation of Bubble Points and Dew Points in DWSIM.
00:07 In this tutorial, we will learn to generate: Bubble Point Temperature at a given pressure,
00:15 Dew Point Temperature at a given pressure.
00:19 To record this tutorial, I am using DWSIM 5.2 (Classic UI) and Windows 10.
00:28 The process demonstrated in this tutorial is identical in other OS also such as-

Linux,

Mac OS X or

FOSSEE OS on ARM.

00:40 To practice this tutorial, you should know to: add components to a flowsheet,
00:46 select thermodynamic packages and add material stream and specify their properties.
00:54 The prerequisite tutorials are mentioned on our website spoken-tutorial.org
00:59 You can access these tutorials and all the associated files from this site.
01:05 In this tutorial, using DWSIM, we will calculate:

1) Bubble Point Temperature at 2 bar

2) Dew Point Temperature at 10 bar

01:15 Here we provide the compounds, inlet stream conditions and property package.
01:21 I have already opened DWSIM on my machine.
01:26 Go to File menu and select New Steady-state Simulation.
01:33 Simulation Configuration Wizard window appears.
01:37 At the bottom, click on the Next button.
01:41 Now, in the Compounds Search tab, type: Methane.
01:46 Select Methane from ChemSep database.
01:50 Next, we will add Ethane.
01:54 Similarly, add Propane.
01:58 Next, add Isobutane.
02:02 Followed by N-butane.
02:06 Similarly, add Isopentane.
02:10 Then add N-pentane.
02:14 At the bottom of the window, click on the Next button.
02:18 The Property Packages opens.
02:21 From Available Property Package list, double-click on Soave-Redlich-Kwong.
02:28 Then click on the Next button.
02:31 We are moved to a new window named Flash Algorithm.
02:36 From Default Flash Algorithm, select Nested Loops(VLE).
02:41 Click on the Next button at the bottom.
02:44 The next option is System of Units.
02:48 Under System of Units, select C5.
02:52 At the bottom, click on the Finish button.
02:55 Let us maximize the simulation window for better visibility.
03:00 Now let’s insert a material stream for which we have to calculate Bubble points and Dew points.
03:07 On the right hand side of the main simulation window, go to Flowsheet Objects.
03:12 In the Filter List tab, type: Material Stream.
03:17 From the displayed list, drag and drop a Material Stream to the Flowsheet.
03:23 Click on the Material Stream “MSTR-000” to view its properties.
03:29 Let’s change the name of this stream to Feed.
03:33 Now we will specify the Feed stream properties.
03:37 Go to the Input Data.
03:39 Select Flash Spec as Temperature and Pressure (TP), if not already selected.
03:44 By default, Temperature and Pressure are already selected as Flash Spec.
03:50 Change Temperature to 25 degree Celsius and press Enter.
03:56 Change Pressure to 5 bar and press Enter.
04:00 Now, let us specify the feed stream compositions.
04:05 Under Composition, choose the Basis as Mole Fractions, if not already selected.
04:13 By default, Mole Fractions is selected as Basis.
04:18 Now, for Methane, type the Amount as 0.05 and press Enter.
04:26 For Ethane, type it as 0.1 and press Enter.
04:33 Similarly, for Propane, type 0.15 and press Enter.
04:39 And for Isobutane, type 0.1 and press Enter.
04:45 Next, for N-butane, type 0.2 and press Enter.
04:51 For Isopentane, type 0.25 and press Enter.
04:57 Lastly, for N-pentane, type 0.15 and press Enter.
05:04 On the right, click on this green tick to Accept Changes.
05:08 Now we will see how property package calculates phase equilibrium data of compounds.
05:14 To do this, go to Utilities.
05:17 Click on Add Utility.
05:20 In the Add Utility window, under Object Type, select Material Streams.
05:27 Under Utility Type, select Phase Envelope.
05:31 Under Flowsheet Object, select Feed.
05:35 Then, at the bottom, click on the Add Utility button.
05:40 Phase Envelope window opens.
05:43 Let us adjust the Phase Envelope window for better visibility.
05:49 Enter Name as BubblePoint-DewPoint.
05:55 Under Settings, click on Bubble Points tab.
06:00 Select the check box against Custom Initialization.
06:05 We are going to calculate bubble point temperature against given pressure.
06:10 So, let Initial Flash method be PVF.
06:14 Here, we will change only Initial Pressure and Pressure Step.
06:19 Type Initial Pressure as 1 bar and press Enter.
06:24 Type Pressure Step as 1 bar and press Enter.
06:30 We will not change any temperature value as we are doing a PVF Flash.
06:36 Now, go to Dew Points tab.
06:39 We will repeat the same process as Bubble Points Initialization.
06:44 Select the check box against Custom Initialization.
06:49 We are going to calculate dew point temperature against given pressure.
06:54 So, here also let the Initial Flash method be PVF.
06:59 Hence we will change only Initial Pressure and Pressure Step
07:04 Type Initial Pressure as 1 bar and press Enter.
07:10 Type Pressure Step as 1 bar and press Enter.
07:16 Now click on the Calculate button at the bottom.
07:20 The calculation process is running in the background.
07:25 We can see the dew points and bubble points generated at different pressure and temperatures.
07:32 Under Results, click on Table.
07:36 In the column Pb, look for 2 bar at which we had to calculate the bubble point.

Here is 2 bar under Pb column.

07:45 Look for temperature in Tb column corresponding to 2 bar.
07:50 We can see the bubble point temperature to be minus 91.9274 degree Celcius
07:58 Next, we have to find Dew point temperature at 10 bar.
08:03 In the column Pd, look for 10 bar at which we have to find the dew point.
08:09 Here is 10 bar under Pd column.
08:12 Look for temperature in Td column corresponding to 10 bar.
08:17 We can see the dew point temperature to be 87.396 degree Celcius.
08:24 There is an alternative way by which we can verify the correctness of the above results.
08:30 For this, let’s get back to flowsheet window.
08:34 Click on Feed.
08:37 Under Input data, select Flash Spec as Pressure and Vapor Fraction (PVF).
08:44 Type Vapor Phase Mole Fraction as 0 and press Enter.
08:50 And, Pressure as 2 bar and press Enter.
08:56 Now check the temperature which is minus 91.9274 degree C.
09:03 This is the bubble point temperature at 2 bar pressure.
09:07 It matches the value obtained earlier from Phase envelope.
09:11 Similarly, let’s check for Dew point temperature.
09:16 Let the Flash Spec be same as Pressure and Vapor Fraction (PVF).
09:21 Type Vapor Phase Mole Fraction as 1 and press Enter.
09:27 And Pressure as 10 bar and press Enter.
09:32 Now, check the temperature which is 87.396 degree C.
09:38 This is the dew point temperature at 10 bar pressure.
09:42 It matches the value obtained earlier from Phase envelope.
09:46 Let's summarize.
09:48 In this tutorial, we have learnt to generate: Bubble Point Temperature at a given pressure,
09:54 Dew Point Temperature at a given pressure.
09:57 As an assignment, calculate the following for the given component system and inlet conditions.
10:04 Calculate Bubble Point Pressure at 20 degree Celsius.
10:08 Calculate Dew Point Pressure at 60 degree Celsius.
10:12 Watch the video available at following link.

http://spoken-tutorial.org/

It summarizes the Spoken Tutorial project.

10:19 The Spoken Tutorial Project Team conducts workshops and gives certificates. For more details, please write to us.
10:26 Please post your times queries in this forum.
10:31 The FOSSEE team coordinates conversion of existing flow sheets into DWSIM.
10:37 We give honorarium and certificates.
10:40 For more details, please visit this site.
10:43 The FOSSEE team coordinates coding of solved examples of popular books.
10:48 We give honorarium and certificates. For more details, please visit this site.
10:55 The FOSSEE team helps migrate commercial simulator labs to DWSIM.
11:01 We give honorarium and certificates. For more details, please visit this site
11:08 Spoken Tutorial and FOSSEE projects are funded by NMEICT, MHRD, Government of India.
11:16 This tutorial is contributed by Kaushik Datta and Priyam Nayak.

Thanks for joining.

Contributors and Content Editors

PoojaMoolya, Sandhya.np14

Retrieved from "https://script.spoken-tutorial.org/index.php?title=DWSIM/C2/Calculation-of-Bubble-Points-and-Dew-Points/English-timed&oldid=44525"