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− | ||'''Time'''
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− | ||'''Narration'''
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− | ||00:01
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− | || Welcome to this '''spoken tutorial''' on '''Binary Phase Envelope '''in '''DWSIM'''.
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− | |-
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− | ||00:07
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− | || In this tutorial, we will learn to generate: '''Txy''' plot at given '''pressure''',
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− | |-
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− | || 00:14
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− | || '''xy''' plot for the obtained '''Txy''' data,
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− | |-
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− | || 00:18
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− | || '''Pxy''' plot at given '''temperature'''.
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− | || 00:22
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− | || To record this tutorial, I am using '''DWSIM 5.2 (Classic UI)''' and '''Windows 10'''.
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− | |-
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− | || 00:32
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− | || The process demonstrated in this tutorial is identical in other '''OS''' also, such as-
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− | '''Linux''',
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− | '''Mac OS X '''or
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− | '''FOSSEE OS '''on '''ARM'''.
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− | ||00:44
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− | || To practice this tutorial, you should know to : add components to a '''flowsheet''',
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− | || 00:51
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− | || Select '''thermodynamic '''packages,
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− | || 00:54
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− | || add '''material '''streams and specify their properties.
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− | || 00:59
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− | || The pre-requisite tutorials are mentioned on our website.
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− | || 01:04
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− | || You can access these tutorials and all the associated files from this site.
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− | ||01:10
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− | || In this tutorial, using '''DWSIM''', we will generate: '''Txy''' plot at a constant pressure of '''1.013 bar''',
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− | |-
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− | || 01:21
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− | || '''xy''' plot for the obtained '''Txy''' data,
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− | |-
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− | || 01:25
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− | || '''Pxy''' plot at a constant temperature of '''75 degree centigrade'''.
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− | |-
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− | || 01:31
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− | || Here we give '''compounds, inlet stream conditions''' and '''property package'''.
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− | || 01:38
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− | || I have already opened '''DWSIM '''on my machine.
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− | || 01:43
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− | || Go to '''File '''menu and select '''New Steady-state Simulation.'''
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− | |-
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− | || 01:50
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− | || '''Simulation Configuration Wizard '''window appears.
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− | || 01:54
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− | || At the bottom, click on the '''Next '''button.
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− | || 01:58
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− | || Now, in the '''Compounds Search '''tab, type '''Ethanol.'''
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− | || 02:04
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− | || Select '''Ethanol '''from '''ChemSep '''database.
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− | || 02:08
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− | || Similarly, add '''1-propanol'''.
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− | || 02:12
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− | || At the bottom, click on the '''Next '''button.
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− | || 02:16
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− | || The '''Property Packages '''opens.
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− | || 02:19
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− | || From '''Available Property Packages '''list, double-click on '''Soave-Redlich-Kwong (SRK).'''
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− | || 02:26
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− | || Then click on the '''Next '''button'''.'''
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− | || 02:30
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− | || We are moved to a new window named '''Flash Algorithm'''.
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− | ||02:35
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− | || From '''Default Flash Algorithm '''select '''Nested Loops(VLE)'''.
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− | || 02:41
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− | || At the bottom, click on the '''Next '''button.
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− | || 02:45
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− | || Next option is '''System of Units.'''
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− | ||02:49
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− | || Under '''System of Units''', select '''C5'''.
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− | |-
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− | ||02:54
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− | || At the bottom, click on the '''Finish '''button.
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− | |-
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− | || 02:58
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− | || Let us maximize the '''simulation window''' for better visibility.
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− | |-
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− | || 03:03
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− | || Let’s insert a '''material stream''' for which we have to generate the '''Txy, xy '''and '''Pxy''' plots.
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− | || 03:12
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− | || On the right hand side of the main '''simulation window''', go to '''Flowsheet Objects.'''
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− | || 03:19
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− | || In the '''Filter List '''tab, type '''Material Stream.'''
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− | || 03:24
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− | || From the displayed list, drag and drop a '''Material Stream '''to the '''Flowsheet'''.
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− | || 03:30
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− | || Click on the '''Material Stream “MSTR-000” '''to view its properties.
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− | || 03:37
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− | || Let’s change the name of this '''stream '''to '''Feed.'''
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− | || 03:41
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− | || Now we will specify the '''Feed stream '''properties.
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− | || 03:46
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− | || Go to '''Input Data.'''
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− | || 03:48
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− | || Select '''Flash Spec '''as '''Temperature and Pressure (TP), '''if not already selected.
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− | || 03:55
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− | || By default, '''Temperature and Pressure '''are already selected as '''Flash Spec.'''
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− | ||04:01
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− | || Change '''Temperature '''to '''30 degree Centigrade '''and press '''Enter.'''
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− | ||04:07
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− | || Change '''Pressure '''to '''3.5 bar '''and press '''Enter'''.
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− | || 04:13
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− | || Change '''Molar Flow '''to '''120 kmol/h '''and press '''Enter'''.
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− | || 04:20
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− | || Now, let us specify the '''feed stream compositions'''.
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− | || 04:25
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− | || Under '''Composition''', choose the '''Basis '''as '''Mole Fractions, '''if not already selected'''.'''
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− | || 04:33
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− | || By default, '''Mole Fractions '''will be selected as '''Basis.'''
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− | ||04:38
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− | || For '''Ethanol''', enter the '''Amount '''as '''0.5 '''and press '''Enter'''.
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− | || 04:46
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− | || Similarly, for '''1-propanol''', enter it as '''0.5 '''and press '''Enter'''.
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− | || 04:54
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− | || On the right side, click on this green tick to '''Accept Changes.'''
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− | |-
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− | ||04:59
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− | || Now ,we will see how '''property package''' calculates '''phase equilibrium''' data of compounds.
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− | || 05:06
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− | || To do this, go to '''Utilities'''.
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− | || 05:10
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− | || Click on '''Add Utility.'''
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− | || 05:13
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− | || In the '''Add Utility '''window, under '''Object Type''', select '''Material Streams.'''
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− | ||05:20
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− | || Under '''Utility Type''', select '''Binary Phase Envelope.'''
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− | || 05:25
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− | || Under '''Flowsheet Object''', select '''Feed.'''
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− | |-
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− | || 05:29
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− | || At the bottom, click on the '''Add Utility''' button.
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− | |-
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− | || 05:34
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− | || '''Binary Phase Envelope''' window opens.
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− | || 05:37
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− | || Let us adjust the '''phase envelope window''' for better visibility.
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− | |-
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− | || 05:43
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− | || Enter '''Name''' as '''Txy-plot.'''
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− | || 05:49
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− | || Go to '''Diagram Settings.'''
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− | || 05:52
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− | || Select '''Ethanol''' as '''Compound 1''', if not already selected.
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− | || 05:57
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− | || By default, '''Ethanol''' is selected as '''Compound 1'''.
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− | || 06:02
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− | || Make sure that the other '''compound''' is selected as '''Compound 2'''.
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− | || 06:07
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− | || In this case, it is '''1-propanol''' which is '''Compound 2'''.
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− | || 06:12
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− | || Select '''Envelope type''' as '''Txy''', if not already selected.
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− | || 06:19
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− | || By default, '''Txy''' is selected as '''Envelope type'''.
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− | |-
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− | || 06:24
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− | || Select '''Txy Diagram Options''' as '''VLE''', if not already selected.
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− | || 06:31
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− | || By default, '''VLE''' is selected as '''Txy Diagram Options'''.
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− | |-
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− | || 06:36
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− | || Select '''X-Axis Basis''' as '''Mole Fraction''', if not already selected.
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− | |-
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− | || 06:43
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− | || By default, '''Mole Fraction''' is selected as '''X-Axis Basis'''
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− | |-
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− | || 06:48
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− | || Enter '''Pressure''' as '''1.013 bar.'''
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− | |-
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− | || 06:53
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− | || Here we are going to plot a '''Txy''' diagram.
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− | |-
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− | || 06:56
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− | || So, let's not worry about the '''pressure''' value.
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− | |-
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− | || 07:00
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− | || Make sure that the '''property package''' is selected as '''Soave-Redlich-Kwong.'''
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− | |-
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− | || 07:07
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− | || Now click on '''Calculate''' button at the bottom.
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− | |-
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− | || 07:12
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− | || The diagram generated is a '''Txy''' diagram or '''Constant Pressure Phase Diagram'''.
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− | |-
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− | || 07:19
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− | || '''X-axis''' indicates the '''mole fraction''' of '''Ethanol'''.
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− | |-
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− | || 07:23
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− | || '''Y -axis''' indicates the temperature range for which the '''VLE '''is generated.
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− | || 07:29
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− | || The lower line of the '''envelope''' represents '''Bubble Point''' '''Curve.'''
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− | || 07:34
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− | || Hover the '''mouse''' to the lower line at '''Ethanol mole fraction''' of '''0.5.'''
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− | || 07:40
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− | || We can see the '''bubble point temperature '''to be '''86.2853 degree Centigrade.'''
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− | || 07:47
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− | || For any mixture composition below this line, is '''subcooled liquid'''.
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− | || 07:52
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− | || The upper line of the '''envelope''' represents '''Dew Point Curve.'''
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− | |-
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− | || 07:57
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− | || Hover the mouse to the upper line at '''Ethanol mole fraction''' of '''0.5.'''
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− | |-
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− | || 08:03
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− | || We can see the '''dew point temperature '''to be '''89.5881 degree Centigrade'''
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− | ||08:10
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− | || For any mixture composition above this line, the mixture is '''superheated vapour'''.
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− | |-
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− | || 08:16
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− | || The area enclosed between these two lines is the '''VLE''' region.
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− | |-
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− | || 08:21
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− | || Here, both vapor and liquid phases exist in equilibrium.
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− | || 08:26
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− | || We can see the '''bubble points''' and '''dew points''' at every composition.
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− | || 08:32
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− | || For this, go to '''Results''' section and click on '''Table'''.
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− | || 08:37
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− | || Here we can see the corresponding '''mole fractions''' and '''temperatures '''values.
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− | || 08:43
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− | || Let us now generate the '''xy''' plot for data obtained in the above '''Txy''' diagram.
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− | || 08:49
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− | || Close this '''window'''.
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− | || 08:53
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− | || Go to '''Utilities''' and click on '''Add Utility.'''
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− | |-
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− | ||08:58
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− | || In the '''Add Utility '''window, under '''Object Type''', select '''Material Streams.'''
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− | || 09:06
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− | || Under '''Utility Type''', select '''Binary Phase Envelope.'''
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− | || 09:11
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− | || Under '''Flowsheet Object''', select '''Feed.'''
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− | || 09:15
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− | || At the bottom, click on the '''Add Utility''' button.
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− | || 09:19
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− | || Once again, '''Binary Phase Envelope''' window opens.
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− | || 09:23
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− | || Let us adjust the window for better visibility.
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− | || 09:27
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− | || Enter '''Name''' as '''xy-plot.'''
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− | || 09:32
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− | || Go to '''Diagram Settings.'''
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− | || 09:35
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− | || Let the '''Compound''' settings be the default settings.
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− | || 09:39
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− | || Select '''Envelope type''' as '''(T)xy.'''
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− | || 09:44
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− | || Select '''X-Axis Basis''' as '''Mole Fraction''', if not already selected.
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− | |-
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− | || 09:51
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− | || By default, '''Mole Fraction''' is selected as '''X-Axis Basis.'''
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− | |-
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− | || 09:56
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− | || Enter '''Pressure''' as '''1.013 bar.'''
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− | |-
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− | || 10:01
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− | || Now click on the '''Calculate '''button at the bottom.
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− | |-
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− | || 10:05
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− | || The diagram is generated is called '''xy diagram.'''
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− | |-
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− | || 10:09
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− | || '''X-axis''' indicates the '''mole fraction '''of '''Ethanol''' in liquid phase.
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− | |-
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− | || 10:15
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− | || '''Y -axis''' indicates the '''mole fraction''' of '''Ethanol''' in vapour phase.
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− | |-
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− | || 10:20
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− | || The upper curve is called '''Equilibrium Curve.'''
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− | |-
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− | || 10:24
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− | || Hover the mouse to the upper line at '''Ethanol mole fraction '''of '''0.6.'''
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− | |-
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− | || 10:30
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− | || We can see the vapour phase '''mole fraction''' of '''Ethanol''' to be '''0.7539.'''
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− | |-
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− | || 10:37
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− | || Let us generate the '''Pxy''' plot now.
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− | |-
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− | || 10:41
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− | || Close this window.
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− | |-
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− | || 10:45
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− | || Go to '''Utilities''' and click on '''Add Utility.'''
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− |
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− | |-
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− | ||10:50
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− | || In the '''Add Utility '''window, under '''Object Type''', select '''Material Streams.'''
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− |
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− | |-
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− | ||10:57
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− | || Under '''Utility Type''', select '''Binary Phase Envelope.'''
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− |
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− | |-
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− | || 11:02
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− | || Under '''Flowsheet Object''', select '''Feed.'''
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− |
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− | |-
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− | || 11:06
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− | || At the bottom, click on the '''Add Utility''' button.
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− |
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− | |-
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− | || 11:10
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− | || Once again, '''Binary Phase Envelope''' window opens.
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− |
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− | |-
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− | || 11:14
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− | || Let us adjust the window for better visibility.
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− | |-
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− | || 11:18
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− | || Enter '''Name''' as '''Pxy-plot.'''
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− |
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− | |-
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− | || 11:23
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− | || Go to '''Diagram Settings.'''
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− |
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− | |-
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− | || 11:25
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− | || Let the '''Compound''' settings be the default settings.
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− |
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− | |-
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− | || 11:29
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− | || Select '''Envelope type''' as '''Pxy.'''
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− | |-
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− | || 11:33
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− | || Select '''X-Axis Basis''' as '''Mole Fraction''', if not already selected.
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− |
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− | |-
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− | || 11:39
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− | || By default, '''Mole Fraction''' is selected as '''X-Axis Basis.'''
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− |
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− | |-
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− | ||11:44
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− | || Enter '''Temperature''' as '''75 degree Centigrade.'''
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− | |-
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− | || 11:49
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− | || Here, we are going to plot a '''Pxy '''diagram.
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− |
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− | |-
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− | || 11:53
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− | || So, let us not worry about the '''temperature''' value.
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− |
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− | |-
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− | || 11:57
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− | || Make sure that the property package is selected as '''Soave-Redlich-Kwong. '''
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− |
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− | |-
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− | || 12:03
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− | || Now, click on '''Calculate '''button at the bottom.
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− |
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− | |-
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− | || 12:07
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− | || The diagram generated is a '''Pxy''' diagram or '''Constant Temperature Phase Diagram'''.
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− |
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− | |-
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− | || 12:13
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− | || '''X-axis''' indicates the '''mole fraction''' of '''Ethanol'''.
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− |
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− | |-
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− | || 12:17
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− | || '''Y -axis''' indicates the pressure range for which the '''VLE''' is generated.
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− |
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− | |-
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− | || 12:23
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− | || The lower line of the envelope represents '''Dew Points'''.
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− |
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− | |-
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− | || 12:28
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− | || Hover the mouse to the lower line at '''Ethanol mole fraction '''of '''0.4.'''
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− |
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− | |-
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− | || 12:34
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− | || We can see the '''dew point pressure''' to be '''0.523 bar.'''
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− |
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− | |-
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− | || 12:39
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− | || For any mixture composition below this line, is completely '''vapour.'''
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− |
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− | |-
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− | || 12:45
| |
− | || The upper line of the envelope represents '''Bubble Points'''.
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− |
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− | |-
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− | || 12:49
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− | || Hover the mouse to the upper line at '''Ethanol mole fraction '''of 0.8.
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− |
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− | |-
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− | || 12:55
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− | || We can see the '''bubble point pressure''' to be '''0.782 bar.'''
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− | || 13:01
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− | || For any mixture composition above this line, is completely '''liquid.'''
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− | || 13:06
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− | || The area enclosed between these two lines is the '''VLE''' region.
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− | || 13:11
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− | || Here, both vapor and liquid phases exist in equilibrium.
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− | || 13:16
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− | || Now, go to '''Results''' section. Click on '''Table'''.
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− | || 13:21
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− | || Here we can see the corresponding '''mole fractions''' and '''pressure''' values.
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− | || 13:27
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− | || Let's summarize.
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− | ||13:29
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− | || In this tutorial, we have learnt to generate: '''Txy''' plot at given '''pressure''',
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− | || 13:34
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− | || '''xy''' plot for the obtained '''Txy''' data,
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− | || 13:38
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− | || '''Pxy''' plot at given '''temperature'''.
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− | || 13:41
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− | || As an assignment, generate '''P(xy)''' plot for the '''Pxy''' data obtained.
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− | || 13:47
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− | || Generate '''P(xy)''' plot using '''NRTL '''model.
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− | || 13:51
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− | || Compare the results.
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− | || 13:53
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− | || Watch the video available at following link.
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− | |-
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− | || 13:56
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− | || It summarizes the '''Spoken Tutorial''' project.
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− |
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− | |-
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− | ||14:00
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− | || The Spoken Tutorial Project Team conducts workshops and gives certificates.
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− |
| |
− | For more details, please write to us.
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− | |-
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− | ||14:09
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− | || Please post your times queries in this forum.
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− | || 14:13
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− | || The '''FOSSEE '''team coordinates conversion of existing '''flow sheets''' into '''DWSIM'''.
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− |
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− | We give honorarium and certificates.
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− | || 14:22
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− | || For more details, please visit this site.
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− |
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− | |-
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− | || 14:26
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− | || The '''FOSSEE '''team coordinates coding of solved examples of popular books.
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− |
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− | |-
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− | || 14:31
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− | || We give honorarium and certificates. For more details, please visit this site.
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− |
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− | |-
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− | || 14:37
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− | || The '''FOSSEE '''team helps migrate commercial simulator labs to '''DWSIM.'''
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− | |-
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− | || 14:43
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− | || We give honorarium and certificates. For more details, please visit this site.
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− |
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− | |-
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− | ||14:49
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− | || '''Spoken Tutorial '''and '''FOSSEE '''projects are funded by '''NMEICT, MHRD''', Government of India.
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− | |-
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− | || 14:57
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− | || This tutorial is contributed by Kaushik Datta and Priyam Nayak.
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− |
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− | Thanks for joining.
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− | |-
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− | |}
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