Difference between revisions of "DWSIM/C2/Binary-Phase-Envelope/English"
Nancyvarkey (Talk | contribs) |
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'''www.spoken-tutorial.org''' | '''www.spoken-tutorial.org''' | ||
− | || The pre-requisite tutorials are mentioned on our website | + | || The pre-requisite tutorials are mentioned on our website. |
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|- | |- | ||
|| Click '''Next''' | || Click '''Next''' | ||
− | || | + | || At the bottom, click on the '''Next '''button. |
|- | |- | ||
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|- | |- | ||
|| Click on '''Finish''' | || Click on '''Finish''' | ||
− | || At the bottom, click on '''Finish '''button | + | || At the bottom, click on '''Finish '''button. |
|- | |- | ||
|| Click on maximize button. | || Click on maximize button. | ||
− | || Let us maximize the simulation window for better visibility. | + | || Let us maximize the '''simulation window''' for better visibility. |
|- | |- | ||
|| | || | ||
− | || Let’s insert a material stream for which we have to generate the '''Txy, xy '''and '''Pxy''' plots. | + | || Let’s insert a '''material stream''' for which we have to generate the '''Txy, xy '''and '''Pxy''' plots. |
|- | |- | ||
|| Point to '''Flowsheet Objects.''' | || Point to '''Flowsheet Objects.''' | ||
− | || On the right hand side of the main simulation window, go to '''Flowsheet Objects.''' | + | || On the right hand side of the main '''simulation window''', go to '''Flowsheet Objects.''' |
|- | |- | ||
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|- | |- | ||
|| Click on '''MSTR-000''' | || Click on '''MSTR-000''' | ||
− | || Click on the '''Material Stream | + | || Click on the '''Material Stream “MSTR-000” '''to view its properties. |
|- | |- | ||
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|- | |- | ||
|| Drag the phase envelope window. | || Drag the phase envelope window. | ||
− | || Let us adjust the phase envelope window for better visibility. | + | || Let us adjust the '''phase envelope window''''''Bold text''' for better visibility. |
|- | |- | ||
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|- | |- | ||
|| Compound 2 >> 1-propanol | || Compound 2 >> 1-propanol | ||
− | || Make sure that the other compound is selected as '''Compound 2'''. | + | || Make sure that the other '''compound''' is selected as '''Compound 2'''. |
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− | '''X-axis''' indicates the mole fraction of Ethanol. | + | '''X-axis''' indicates the '''mole fraction''' of '''Ethanol'''. |
− | + | ||
'''Y -axis''' indicates the temperature range for which the '''VLE '''is generated. | '''Y -axis''' indicates the temperature range for which the '''VLE '''is generated. | ||
|- | |- | ||
− | || Point to '''Bubble Point | + | || Point to '''Bubble Point Curve''' |
− | || The lower line of the envelope represents '''Bubble Point''' '''Curve.''' | + | || The lower line of the '''envelope''' represents '''Bubble Point''' '''Curve.''' |
|- | |- | ||
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− | Point to bubble point temperature value | + | Point to '''bubble point temperature''' value |
− | || Hover the mouse to the lower line at Ethanol mole fraction of '''0.5.''' | + | || Hover the mouse to the lower line at '''Ethanol mole fraction''''''Bold text''' of '''0.5.''' |
− | We can see the bubble point temperature to be '''86.2853 deg C.''' | + | We can see the '''bubble point temperature '''to be '''86.2853 deg C.''' |
|- | |- | ||
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|- | |- | ||
|| Point to '''Dew Point''' '''Curve''' | || Point to '''Dew Point''' '''Curve''' | ||
− | || The upper line of the envelope represents '''Dew Point Curve.''' | + | || The upper line of the '''envelope''' represents '''Dew Point Curve.''' |
|- | |- | ||
− | || Point to upper line Ethanol mole fraction value | + | || Point to upper line '''Ethanol mole fraction''' value |
Point to dew point temperature value | Point to dew point temperature value | ||
− | || Hover the mouse to the upper line at Ethanol mole fraction of '''0.5.''' | + | || Hover the mouse to the upper line at '''Ethanol mole fraction''' of '''0.5.''' |
− | We can see the dew point temperature to be '''89.5881 deg C''' | + | We can see the '''dew point temperature '''to be '''89.5881 deg C''' |
|- | |- | ||
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point to the values. | point to the values. | ||
− | || We can see the bubble points and dew points at every composition. | + | || We can see the '''bubble points''' and '''dew points''' at every composition. |
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|- | |- | ||
|| | || | ||
− | || Let the | + | || Let the '''Compound''' settings be the default settings. |
|- | |- | ||
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− | '''X-axis''' indicates the mole fraction of '''Ethanol''' in liquid phase. | + | '''X-axis''' indicates the '''mole fraction '''of '''Ethanol''' in liquid phase. |
− | '''Y -axis''' indicates the mole fraction of '''Ethanol''' in vapour phase. | + | '''Y -axis''' indicates the '''mole fraction''' of '''Ethanol''' in vapour phase. |
|- | |- | ||
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− | Point to vapour phase mole fraction of | + | Point to vapour phase mole fraction of Ethanol value |
|| Hover the mouse to the upper line at '''Ethanol mole fraction '''of '''0.6.''' | || Hover the mouse to the upper line at '''Ethanol mole fraction '''of '''0.6.''' | ||
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|- | |- | ||
|| | || | ||
− | || Let the | + | || Let the '''Compound''' settings be the default settings. |
|- | |- | ||
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− | '''X-axis''' indicates the mole fraction of Ethanol. | + | '''X-axis''' indicates the '''mole fraction''' of '''Ethanol'''. |
Line 621: | Line 620: | ||
|- | |- | ||
− | || Point to lower line Ethanol mole fraction value | + | || Point to lower line '''Ethanol mole fraction''' value |
Latest revision as of 22:04, 16 August 2018
Visual Cue | Narration |
Slide Number 1
Title Slide |
Welcome to this spoken tutorial on Binary Phase Envelope in DWSIM. |
Slide Number 2
Learning Objective |
In this tutorial, we will learn to generate:
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Slide Number 3
System Requirements |
To record this tutorial, I am using
The process demonstrated in this tutorial is identical in other OS also, such as-
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Slide Number 4
Pre-requisites |
To practice this tutorial, you should know to,
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Slide Number 5
www.spoken-tutorial.org |
The pre-requisite tutorials are mentioned on our website.
|
Slide Number 6
Mole Fraction(Ethanol): 0.5 Mole Fraction(1-propanol): 0.5 Temperature: 30 degree C Pressure: 3.5 bar Property Package: Soave-Redlich-Kwong (SRK) |
In this tutorial, using DWSIM, we will generate:
1) Txy plot at a constant pressure of 1.013 bar 2) xy plot for the obtained Txy data 3) Pxy plot at a constant temperature of 750C
Here we give compounds, inlet stream conditions and property package. |
I have already opened DWSIM on my machine. | |
File >>New Steady-state Simulation | Go to File menu and select New Steady-state Simulation. |
Point to Simulation Configuration Wizard window | Simulation Configuration Wizard window appears. |
Click on Next. | At the bottom, click on the Next button. |
Type Ethanol in the Search tab | Now, in the Compounds Search tab, type Ethanol. |
ChemSep database >>Ethanol | Select Ethanol from ChemSep database. |
Type 1-propanol in the Search tab | Similarly, add 1-propanol. |
Click on Next. | At the bottom, click on the Next button. |
Point to Property Packages | The Property Packages opens. |
Property Packages>>Available Property Package
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From Available Property Packages list, double-click on Soave-Redlich-Kwong (SRK). |
Click on Next. | Then click on the Next button. |
Point to Flash Algorithm | We are moved to a new window named Flash Algorithm. |
Default Flash Algorithm >>Nested Loops (VLE) | From Default Flash Algorithm select Nested Loops(VLE) |
Click Next | At the bottom, click on the Next button. |
Point to System of Units | Next option is System of Units. |
System of Units >>C5 | Under System of Units, select C5. |
Click on Finish | At the bottom, click on Finish button. |
Click on maximize button. | Let us maximize the simulation window for better visibility. |
Let’s insert a material stream for which we have to generate the Txy, xy and Pxy plots. | |
Point to Flowsheet Objects. | On the right hand side of the main simulation window, go to Flowsheet Objects. |
In the Filter List tab(right panel), type Material Stream | In the Filter List tab, type Material Stream. |
Click and drag Material Stream to the flowsheet | From the displayed list, drag and drop a Material Stream to the Flowsheet. |
Click on MSTR-000 | Click on the Material Stream “MSTR-000” to view its properties. |
Type Feed | Let’s change the name of this stream to Feed. |
Point to Feed stream properties. | Now we will specify the Feed stream properties. |
Go to Input Data.
Input Data>>Flash Spec>>Temperature and Pressure(TP) |
Go to Input Data.
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Input Data >>Temperature >>30 C
Press Enter |
Change Temperature to 30 deg C and press Enter. |
Input Data >>Pressure >>3.5 bar
Press Enter |
Change Pressure to 3.5 bar and press Enter. |
Input Data >>Molar Flow >>120 kmol/h
Press Enter |
Change Molar Flow to 120 kmol/h and press Enter. |
Cursor on the window. | Now let us specify the feed stream compositions. |
Composition >>Basis >>Mole Fractions | Under Composition, choose the Basis as Mole Fractions, if not already selected.
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Ethanol: 0.5
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For Ethanol, enter the Amount as 0.5 and press Enter. |
1-propanol: 0.5 | Similarly, for 1-propanol, enter it as 0.5 and press Enter. |
Point to the green tick mark.
Click Accept Changes |
On the right side, click on this green tick to Accept Changes. |
Click on Utilities | Now we will see how property package calculates phase equilibrium data of compounds.
|
Click on Add Utility | Click on Add Utility. |
Object Type >> Material Streams | In the Add Utility window under Object Type, select Material Streams. |
Utility Type >> Binary Phase Envelope | Under Utility Type, select Binary Phase Envelope. |
Flowsheet Object >> Feed | Under Flowsheet Object, select Feed. |
Click on Add Utility | At the bottom, click on the Add Utility button. |
Point to Binary Phase Envelope window | Binary Phase Envelope window opens. |
Drag the phase envelope window. | Let us adjust the phase envelope window'Bold text' for better visibility. |
Name >> Txy-plot | Enter Name as Txy-plot. |
Point to Diagram Settings. | Go to Diagram Settings. |
Compound 1 >> Ethanol | Select Ethanol as Compound 1, if not already selected.
|
Compound 2 >> 1-propanol | Make sure that the other compound is selected as Compound 2.
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Envelope type >> Txy | Select Envelope type as Txy, if not already selected.
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Txy Diagram Options >> VLE | Select Txy Diagram Options as VLE, if not already selected.
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X-Axis Basis >> Mole Fraction | Select X-Axis Basis as Mole Fraction, if not already selected.
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Pressure >> 1.013 bar | Enter Pressure as 1.013 bar. |
Here we are going to plot a Txy diagram.
| |
Point to Soave-Redlich-Kwong (SRK) | Make sure that the property package is selected as Soave-Redlich-Kwong (SRK) |
Click on Calculate button at the bottom. | Now click on Calculate button at the bottom. |
Point to Txy diagram
|
The diagram generated is a Txy diagram or Constant Pressure Phase Diagram.
Y -axis indicates the temperature range for which the VLE is generated. |
Point to Bubble Point Curve | The lower line of the envelope represents Bubble Point Curve. |
Point to lower line Ethanol mole fraction value
|
Hover the mouse to the lower line at Ethanol mole fraction'Bold text' of 0.5.
|
Point to the subcooled region. | For any mixture composition below this line, is subcooled liquid. |
Point to Dew Point Curve | The upper line of the envelope represents Dew Point Curve. |
Point to upper line Ethanol mole fraction value
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Hover the mouse to the upper line at Ethanol mole fraction of 0.5.
|
Point to the superheated vapour region. | For any mixture composition above this line, the mixture is superheated vapour. |
Point to VLE region
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The area enclosed between these two lines is the VLE region.
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Point to Results section >> click on Table
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We can see the bubble points and dew points at every composition.
|
Let us now generate the xy plot for data obtained in the above Txy diagram. | |
Close this window | Close this window. |
Utilities >> Add Utility | Go to Utilities and click on Add Utility. |
Object Type >> Material Streams | In the Add Utility window, under Object Type, select Material Streams. |
Utility Type >> Binary Phase Envelope | Under Utility Type, select Binary Phase Envelope. |
Flowsheet Object >> Feed | Under Flowsheet Object, select Feed. |
At the bottom, click on the Add Utility button. | At the bottom, click on the Add Utility button. |
Point to Binary Phase Envelope window | Once again, Binary Phase Envelope window opens. |
Let us adjust the window for better visibility. | |
Name >> xy-plot | Enter Name as xy-plot. |
Go to Diagram Settings. | Go to Diagram Settings. |
Let the Compound settings be the default settings. | |
Envelope type >> (T)xy | Select Envelope type as (T)xy. |
X-Axis Basis >> Mole Fraction | Select X-Axis Basis as Mole Fraction, if not already selected.
|
Pressure >> 1.013 bar | Enter Pressure as 1.013 bar. |
Click on Calculate button at the bottom. | Now click on Calculate button at the bottom. |
Point to xy diagram
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The diagram is generated is called xy diagram.
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Point to Equilibrium Curve | The upper curve is called Equilibrium Curve. |
Point to upper line Ethanol mole fraction value
|
Hover the mouse to the upper line at Ethanol mole fraction of 0.6.
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Let us generate the Pxy plot now. | |
Close this window. | Close this window. |
Utilities >> Add Utility | Go to Utilities and click on Add Utility. |
Object Type >> Material Streams | In the Add Utility window, under Object Type, select Material Streams. |
Utility Type >> Binary Phase Envelope | Under Utility Type, select Binary Phase Envelope. |
Flowsheet Object >> Feed | Under Flowsheet Object, select Feed. |
At the bottom, click on the Add Utility button. | At the bottom, click on the Add Utility button. |
Point to the window. | Once again, Binary Phase Envelope window opens. |
Drag the window to adjust. | Let us adjust the window for better visibility. |
Name >> Pxy-plot | Enter Name as Pxy-plot. |
Go to Diagram Settings | Go to Diagram Settings. |
Let the Compound settings be the default settings. | |
Envelope type >> Pxy | Select Envelope type as Pxy. |
X-Axis Basis >> Mole Fraction | Select X-Axis Basis as Mole Fraction, if not already selected.
|
Temperature >> 75 degree C | Enter Temperature as 75 degC. |
Here we are going to plot a Pxy diagram.
| |
Property Package >> Soave-Redlich-Kwong (SRK) | Make sure that the property package is selected as Soave-Redlich-Kwong (SRK) |
Click on Calculate button at the bottom. | Now click on Calculate button at the bottom. |
Point to Pxy diagram
|
The diagram generated is a Pxy diagram or Constant Temperature Phase Diagram.
|
Point to Dew Points | The lower line of the envelope represents Dew Points. |
Point to lower line Ethanol mole fraction value
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Hover the mouse to the lower line at Ethanol mole fraction of 0.4.
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Point to the line. | For any mixture composition below this line, is completely vapour. |
Point to Bubble Points | The upper line of the envelope represents Bubble Points. |
Point to upper line Ethanol mole fraction value
|
Hover the mouse to the upper line at Ethanol mole fraction of 0.8.
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Point to the line. | For any mixture composition above this line, is completely liquid. |
Point to VLE region | The area enclosed between these two lines is the VLE region.
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Point to Results section
Click on Table
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Now, go to Results section.
Click on Table. Here we can see the corresponding mole fractions and pressure values. |
Let's summarize. | |
Slide Number 7
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In this tutorial, we have learnt to generate:
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Slide Number 8
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Generate P(xy) plot for the Pxy data obtained.
Generate the P(xy) plot using NRTL model. Compare the results. |
Slide Number 9
About the Spoken Tutorial Project |
Watch the video available at following link.
It summarizes the Spoken Tutorial project. |
Slide Number 10
Spoken Tutorial Workshops |
The Spoken Tutorial Project Team
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Slide Number 11
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Please post your times queries in this forum. |
Slide Number 12
DWSIM Flowsheeting Project
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The FOSSEE team coordinates conversion of existing flow sheets into DWSIM.
We give honorarium and certificates. For more details, please visit this site. |
Slide Number 13
TextBook Companion Project |
The FOSSEE team coordinates coding of solved examples of popular books.
We give honorarium and certificates. For more details, please visit this site. |
Slide Number 14
Lab Migration Project |
The FOSSEE team helps migrate commercial simulator labs to DWSIM.
We give honorarium and certificates. For more details, please visit this site |
Slide Number 15
Acknowledgements |
Spoken Tutorial and FOSSEE projects are funded by NMEICT, MHRD, Government of India. |
Slide Number 16
Thanks |
This tutorial is contributed by Kaushik Datta and Priyam Nayak.
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