View source for DWSIM/C2/Shell-and-Tube-Heat-Exchanger/English-timed


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||'''Time'''
||'''Narration'''

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|| 00:01
|| Welcome to this tutorial on Simulating a '''Shell & Tube Heat Exchanger '''in '''DWSIM.'''

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|| 00:07
|| In this tutorial, we will learn to:

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|| 00:11
|| Simulate a '''Shell & Tube Heat Exchanger'''

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|| 00:14
|| Calculate the '''Outlet stream temperatures'''

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|| 00:17
|| Calculate '''Overall Heat Transfer Coefficient'''

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|| 00:20
|| Calculate '''Heat Exchange Area'''

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|| 00:23
|| Calculate '''Thermal Efficiency '''and''' LMTD'''

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|| 00:27
|| To record this tutorial, I am using  '''DWSIM 4.3 '''and  '''Windows 7'''

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|| 00:36
||The process demonstrated in this tutorial is identical in other '''OS''' also, such as-

'''Linux''',  '''Mac OS X '''or  '''FOSSEE OS '''on '''ARM'''.

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|| 00:48
|| To practice this tutorial, you should know how to  add components to a '''flowsheet'''

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|| 00:55
|| Select '''thermodynamic '''packages and  add '''material '''stream''' '''and specify their properties.

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|| 01:03
|| The prerequisite tutorials are mentioned on our website.

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|| 01:08
||You can access these tutorials and all the associated files from this site.

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|| 01:14
|| Here, we will develop a '''flowsheet '''to determine:  '''Outlet stream temperatures'''

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|| 01:19
|| '''Overall Heat Transfer coefficient '''and   '''Heat Exchange area.'''

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|| 01:24
||Here we give '''Compounds '''and''' Inlet stream conditions.'''

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|| 01:29
|| Here we give '''Heat Exchanger''' properties and '''Property package'''.

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|| 01:34
|| Here we give '''Shell & Tube Heat Exchanger''' Properties.

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|| 01:39
|| I have already opened '''DWSIM '''on my machine. 

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||01:44
|| Go to '''File '''menu and select '''New Steady-state Simulation.'''

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|| 01:50
|| '''Simulation Configuration Wizard '''window appears.

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|| 01:54
|| At the bottom, click on '''Next.'''

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|| 01:57
|| Now, in the '''Compounds Search '''tab, type '''Methanol.'''

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|| 02:03
|| Select '''Methanol '''from '''ChemSep '''database.

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||02:07
|| Similarly, add '''Water'''.

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|| 02:11
|| At the bottom, click on '''Next'''

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|| 02:14
|| Now comes '''Property Packages.'''

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|| 02:18
|| From the '''Available Property Packages''', double-click on '''Raoult’s Law.'''

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|| 02:24
|| Then click on '''Next''' button. 

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||02:28
|| We are moved to a new window named '''Flash Algorithm'''.

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|| 02:33
|| From '''Default Flash Algorithm '''select '''Nested Loops(VLE)'''

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|| 02:39
|| Click on '''Next '''button'''.'''

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|| 02:42
|| Next option is '''System of Units.'''

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|| 02:46
|| Under '''System of Units''', select '''C5'''.

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|| 02:51
|| At the bottom, click on '''Finish '''button.

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|| 02:55
|| Let us maximize the simulation window for better visibility.

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|| 03:00
|| Now let’s insert two material streams that enter the '''Heat Exchanger'''.

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|| 03:06
|| On the right hand side of the main simulation window, go to '''Flowsheet Objects.'''

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|| 03:12
|| In the '''Filter List '''tab, type '''Material Stream.'''

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|| 03:17
|| From the displayed list, drag and drop a '''Material Stream '''to the '''Flowsheet'''.

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|| 03:23
|| Click on '''MSTR-000 '''to view its properties.

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|| 03:29
|| Let’s change the name of this '''stream '''to '''Water In.'''

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|| 03:34
|| Now we will specify the '''Water In stream '''properties.

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|| 03:40
|| Go to '''Input Data.

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|| 03:43
||''' Select '''Flash Spec '''as '''Temperature and Pressure (TP), '''if not already selected.

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|| 03:50
||By default, '''Temperature and Pressure '''are already selected as '''Flash Spec.'''

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|| 03:56
|| Change '''Temperature '''to '''10 degree Centigrade '''and press '''Enter.'''

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|| 04:02
|| Change '''Pressure '''to '''1 bar '''and press '''Enter'''.

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|| 04:08
|| Change '''Mass Flow '''to '''15000 kg/h '''and press '''Enter'''.

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|| 04:16
|| Now let us specify the '''feed stream '''compositions.

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|| 04:21
|| Under '''Composition''', choose the '''Basis '''as '''Mole Fractions, '''if not already selected'''.'''

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|| 04:29
||By default, '''Mole Fractions '''is selected as '''Basis.'''

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|| 04:34
|| Now for '''Methanol''', enter the '''Amount '''as '''0 '''and press '''Enter.'''

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|| 04:42
|| Similarly, for '''Water''', enter it as '''1 '''and press '''Enter.'''

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|| 04:50
|| On the right, click on this green tick to '''Accept Changes.'''

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|| 04:55
|| Now drag and drop another '''Material Stream '''to the flowsheet.

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|| 05:01
|| Click on '''Material Stream '''“'''MSTR-001” '''to view its properties.

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|| 05:08
|| Let’s change the name of this '''stream '''to '''Methanol In.'''

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|| 05:13
|| Now we will specify the '''Methanol In '''stream properties.

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||05:19
|| Go to '''Input Data.''' Select '''Flash Spec '''as '''Temperature and Pressure (TP).'''

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|| 05:26
||By default, '''Temperature and Pressure '''are again already selected as '''Flash Spec.'''

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|| 05:33
|| Change '''Temperature '''to '''80 degC '''and press '''Enter.'''

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|| 05:40
|| Change '''Pressure '''to '''5 bar '''and press '''Enter'''.

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|| 05:46
|| Change '''Mass Flow '''to '''25000 kg/h '''and press '''Enter'''.

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|| 05:55
|| Now let us specify the '''Methanol In stream compositions'''.

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|| 06:01
|| Under '''Composition''', choose the '''Basis '''as '''Mole Fractions, '''if not already selected'''.'''

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|| 06:09
||By default, '''Mole Fractions '''is selected as '''Basis.'''

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|| 06:14
|| Now for '''Methanol''', enter the '''Amount '''as '''1 '''and press '''Enter.'''

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||06:22
|| Similarly, for '''Water''', enter it as '''0 '''and press '''Enter.'''

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|| 06:30
|| On the right, click on this green tick to '''Accept Changes.'''

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|| 06:35
|| Now let’s insert two more material streams that exit the '''Heat Exchanger'''.

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|| 06:41
|| To do that, let us drag one '''Material Stream.'''

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|| 06:45
|| Let us now arrange it.

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|| 06:48
|| Leave that '''stream''' as unspecified.

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|| 06:52
|| We will change the name of this '''stream '''to '''Water Out.'''

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|| 06:57
|| Next, we will insert another '''Material Stream.'''

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|| 07:01
|| Let us once again arrange it.

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|| 07:04
|| Leave that '''stream''' as unspecified. And name this '''stream '''as '''Methanol Out.'''

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|| 07:11
|| Now let us insert a '''Heat Exchanger '''into the '''flowsheet'''.

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|| 07:17
|| Go to '''Flowsheet Objects'''.

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|| 07:20
|| In the '''Filter list '''tab, type '''Heat Exchanger.'''

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|| 07:25
|| Click on the '''Heat Exchanger '''displayed.

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|| 07:28
||Drag and drop it to the '''flowsheet.'''

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|| 07:31
|| Let us now arrange it as required for better visibility.

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|| 07:36
||Let's click on it.

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|| 07:38
|| On the left, we can see a tab called''' Property Editor Window.'''

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|| 07:44
|| Under '''Connections, '''click on the drop-down against '''Inlet Stream 1.'''  And select '''Methanol In.'''

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|| 07:54
|| Next, click on the drop-down against '''Outlet Stream 1.'''  And select '''Methanol Out.'''

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|| 08:03
|| Then click on the drop-down against '''Inlet Stream 2. ''' And select '''Water In.'''

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|| 08:11
|| Then click on the drop-down against '''Outlet Stream 2. '''

And select '''Water Out.'''

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||08:21
|| Now go to the next section- '''Calculation Parameters.'''

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|| 08:27
|| Here, the first option is '''Calculation Type.'''

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|| 08:32
|| Click on the drop-down against '''Calculation Type.'''

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|| 08:35
|| Select '''Shell and Tubes Exchanger Ratings.'''

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|| 08:40
|| Next, click on the drop-down against '''Flow Direction'''

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|| 08:45
||Select '''Counter Current.'''

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|| 08:48
|| Then click on the field against '''Cold Fluid Pressure Drop '''and enter '''0.002 bar.'''

Then press '''Enter.'''

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||09:01
|| Click on the field against '''Hot Fluid Pressure Drop '''and enter it as '''0.025 bar.'''

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|| 09:10
|| Then press '''Enter.'''

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|| 09:13
|| Now we will enter the properties of '''Shell & Tube Exchanger'''.

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|| 09:18
||Click on '''Edit Shell and Tube Heat Exchanger Properties.'''

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|| 09:24
|| '''Shell and Tube Exchanger Properties''' window opens.

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|| 09:28
|| Here, we can see the by default values for '''Shell and Tube side configurations'''.

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|| 09:34
|| First we will edit the '''Shell Side Configuration.'''

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||09:39
|| Click on the field against '''Shell in Series''' and enter it as '''1'''

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|| 09:46
|| Click on the field against '''Shell Passes''' and enter it as '''2'''

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|| 09:53
|| Click on the field against '''Internal Diameter''' and enter it as '''1000'''

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|| 10:00
|| Click on the field against '''Fouling Factor''' and enter it as '''0.00035'''

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|| 10:10
|| Click on the field against '''Baffle Spacing''' and enter it as '''250'''

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|| 10:17
|| Click on the field against '''Baffle Cut(% diameter)''' and enter it as '''25'''

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|| 10:24
|| This completes the '''Shell Side Configuration.'''

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|| 10:28
|| Now we will edit the '''Tube Side Configuration.'''

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||10:33
|| Click on the field against '''Internal Diameter''' and enter it as '''15'''

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||10:40
|| Click on the field against '''External Diameter''' and enter it as '''20'''

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|| 10:47
|| Click on the field against '''Length''' and enter it as '''5'''

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|| 10:54
|| Click on the field against '''Fouling Factor''' and enter it as '''0.00035'''

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||11:03
|| Click on the field against '''Roughness''' and enter it as '''0.05'''

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|| 11:11
|| Click on the field against '''Thermal Conductivity''' and enter it as '''60'''

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|| 11:18
|| Click on the field against '''Passes per Shell''' and enter it as '''4'''

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|| 11:25
|| Click on the field against '''Tubes per Shell''' and enter it as '''1024'''

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||11:33
|| Click on the field against '''Tube Spacing''' and enter it as '''25'''

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|| 11:40
|| Click on the drop down against '''Tube Layout''' and select '''Square'''

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|| 11:47
|| Select the option '''Cold''' against '''Fluid in Tubes'''

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|| 11:53
|| Now all the '''Shell & Tube Exchanger Properties''' are specified.

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|| 11:58
|| Close the '''Shell and Tube Exchanger Properties''' window by clicking red cross mark on the top right of the window.

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|| 12:06
|| Now we will run the '''simulation.'''

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|| 12:09
|| So, from the toolbar, click on '''Solve Flowsheet '''button.

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||12:15
|| When the calculations are completed, click on '''Heat Exchanger '''in the '''Flowsheet'''.

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|| 12:21
|| From the '''Property Editor Window '''of '''Heat Exchanger, '''locate '''Calculation Parameters '''section.

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|| 12:28
|| Check '''Cold Fluid Outlet Temperature'''. It is '''66.15 degree Centigrade'''

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|| 12:37
||Check '''Hot Fluid Outlet Temperature'''.  It is '''40.95 degree Centigrade'''

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|| 12:45
||Check '''Overall Heat Transfer Coefficient'''. It is '''191.83 Watt per meter square kelvin'''

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|| 12:54
||Check '''Heat Exchange Area'''. It is '''319.12 meter square'''

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|| 13:01
|| From the '''Property Editor Window '''of '''Heat Exchanger, '''locate '''Results '''section.

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|| 13:08
|| Under '''Results''' section, check '''Thermal efficiency;''' it is '''79.05 %'''

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|| 13:17
||Check '''Log Mean Temperature Difference;''' it is '''21.25 degree Centigrade.'''

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|| 13:25
|| Now we will check the '''stream-'''wise temperature results and '''Material balance.'''

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|| 13:32
|| Go to '''Insert '''menu and select '''Master Property Table'''.

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|| 13:39
|| Double-click on the '''Master Property Table '''to edit it.

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|| 13:44
|| '''Configure Master Property Table '''window opens.

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|| 13:49
|| Enter '''Name '''as '''Heat Exchanger – Stream Wise Results'''

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|| 13:55
|| Enter '''Object Type '''as '''Material Stream'''.

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|| 13:59
||By default, '''Material Stream '''is already selected.

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|| 14:03
|| So we will not change it.

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|| 14:06
|| Under '''Properties to display''', select '''Object '''as: '''Water In, Methanol In, Water Out '''and''' Methanol Out.'''

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|| 14:18
|| Under '''Property''', scroll down to see all the parameters.

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|| 14:24
||Now select the properties as: '''Temperature'''

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|| 14:29
||'''Pressure'''

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|| 14:31
||'''Mass Flow''', '''Molar Flow'''

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|| 14:36
||'''Molar Fraction(Mixture) / Methanol'''

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|| 14:41
||'''Molar Fraction(Mixture) / Water'''

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|| 14:45
|| Close this window.

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|| 14:48
|| Move the '''Master Property Table '''for better visibility.

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|| 14:54
||Here we can see the corresponding results for '''Inlet '''and '''Outlet streams.'''

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|| 15:00
|| Now we will check the properties of '''Heat Exchanger.'''

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|| 15:05
|| Go to '''Insert '''menu and select '''Master Property Table'''.

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|| 15:11
|| Double-click on the '''Master Property Table.'''

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|| 15:15
|| '''Configure Master Property Table '''window opens.

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|| 15:20
|| Enter '''Name '''as '''Heat Exchanger – Results.'''

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|| 15:25
|| Enter '''Object Type '''as '''Heat Exchanger'''.

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|| 15:31
|| Under '''Properties to display''', select '''Object '''as '''HE-004'''

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|| 15:39
|| Under '''Property''', scroll down to see all the parameters.

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|| 15:45
||Now select the properties as: '''Global Heat Transfer Coefficient (U)'''

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|| 15:52
||'''Heat Exchange Area (A)''' 

'''Heat Load'''

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|| 15:57
||'''Cold fluid outlet temperature'''

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|| 15:59
||'''Hot fluid outlet temperature'''

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|| 16:04
||'''Logarithmic mean temperature difference LMTD''' and '''Thermal Efficiency'''

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|| 16:12
|| Close this window.

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|| 16:15
|| Move the '''Master Property Table '''for better visibility.

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|| 16:22
||Here we can see the corresponding results for '''Heat Exchanger.'''

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|| 16:27
|| Let's summarize.

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||16:29
|| In this tutorial, we have learnt to  Simulate a''' Shell & Tube Heat Exchanger'''

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|| 16:35
||Calculate the''' Outlet stream temperatures'''

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|| 16:38
|| Calculate '''Overall Heat Transfer Coefficient'''

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|| 16:41
|| Calculate '''Heat Exchange Area'''

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|| 16:44
|| Calculate''' Thermal Efficiency '''and''' LMTD'''

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|| 16:48
|| As an assignment, Repeat this simulation with different '''Compounds, feed conditions '''and '''Thermodynamics'''.

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||16:57
|| Watch the video available at following link.

|-
|| 17:01
||It summarizes the Spoken Tutorial project.

|-
|| 17:05
|| The Spoken Tutorial Project Team

Conducts workshops and  Gives certificates.  For more details, please write to us.

|-
|| 17:14
|| Please post your times queries in this forum. 

|-
||17:18
|| The '''FOSSEE '''team coordinates conversion of existing flow sheets into '''DWSIM'''.

|-
|| 17:25
||We give honorarium and certificates. For more details, please visit this site.

|-
|| 17:32
|| The '''FOSSEE '''team coordinates coding of solved examples of popular books.

|-
|| 17:38
||We give honorarium and certificates . For more details, please visit this site.

|-
|| 17:44
|| The '''FOSSEE '''team helps migrate commercial simulator labs to '''DWSIM.'''

|-
|| 17:50
||We give honorarium and certificates. For more details, please visit this site

|-
|| 17:57
|| '''Spoken Tutorial '''and '''FOSSEE '''projects are funded by '''NMEICT, MHRD''', Government of India.

|-
|| 18:05
|| This tutorial is contributed by Kaushik Datta and Priyam Nayak. Thanks for joining.

|}