DWSIM/C3/Chemsep-Distillation-Column/English-timed

Time	Narration
00:01	Welcome to this tutorial on simulating a Chemsep Distillation Column in DWSIM.
00:08	In this tutorial, we will learn to Specify properties of a Chemsep column and
00:14	Simulate a Distillation column
00:17	To record this tutorial, I am using DWSIM 5. 8 (Classic UI) Update 3 and Windows 10 OS
00:28	But, this process is identical in Linux, Mac OS X or FOSSEE OS on ARM.
00:36	To practice this tutorial, you should know to-
00:39	Add components to a flowsheet
00:42	Select thermodynamic packages
00:45	Add material and energy streams and specify their properties.
00:51	The prerequisite tutorials are available on this website.
00:56	You can access these tutorials and all the associated files from this site.
01:02	DWSIM-Chemsep file used in the tutorial is provided as a Code file on this tutorial page.
01:11	Download the file from Code Files link.
01:15	We will develop a flowsheet to determine Outlet stream properties after Distillation.
01:21	Here we give Compounds, Thermodynamics and Inlet stream conditions.
01:27	I have taken this problem statement from a paper published in Chemical Engineering Science. For reference, I am citing the paper here.
01:37	I have already opened DWSIM on my machine.
01:41	Go to File menu and click on Open File.
01:46	I have already downloaded and extracted the file on my Desktop. Select the file from the Desktop.
01:55	Let us maximize the simulation window.
01:58	This file contains all material and energy streams necessary for this tutorial.
02:05	Now let us insert a Distillation Column into the flowsheet.
02:09	At the bottom of the main simulation window, go to CAPE-OPEN tab.
02:15	Click on the CAPE-OPEN Unit Operation displayed. Drag and drop it to the flowsheet.
02:21	Add CAPE-OPEN Unit Operation window opens.
02:24	Select ChemSep from the displayed list of Unit Operations.
02:30	This list may vary depending on CAPE-OPEN Unit Operations that have been installed in your system.
02:37	At the bottom, click on the Ok button.
02:41	Let us now arrange it as required.
02:44	Click on the added CAPE-OPEN Unit Operation (COUO 005)
02:49	We will change the name of the object to Distillation Column.
02:54	First, we will connect the inlet feed streams.
02:57	Click on the Distillation Column.
02:59	Go to the left side of the window.
03:01	Under Connections, go to the Inlet section.
03:06	Click on the drop-down against feed and select Feed.
03:12	Click on Open CAPE-OPEN Object Editor button in the Object Property Editor window.
03:17	New Unit Operation pop-up window appears.
03:20	Click on the field against Unit Name and type Distillation Column.
03:27	We will specify the rest of the details in a while.
03:31	Click on the OK button at the bottom.
03:34	The ChemSep (CAPE-OPEN) -Distillation Column window will appear.
03:39	Click on CAPE-OPEN on the left side of the ChemSep window.
03:44	Under Distillation Column section, there is a checkbox against CAPE-OPEN Properties.
03:51	This checkbox is checked by default.
03:55	This checkbox is to indicate if the column is to be simulated with the CAPE-OPEN thermodynamics or the native thermodynamics available with the column.
04:05	We will use the native thermodynamics available with the column.
04:09	So we will uncheck the checkbox against CAPE-OPEN Properties.
04:15	Next, we have Expose energy ports.
04:19	This is to indicate if the energy connection ports are to be exposed to connect them to energy stream.
04:27	This is needed if the energy streams are to be connected and used later for energy recycling. Else it can be unchecked.
04:37	For demonstration purposes, let us see how to connect the energy streams.
04:42	Therefore, check the Expose energy ports check-box.
04:47	Click on Save problem to file button on the toolbar.
04:52	Close the ChemSep window by clicking the cross button at the top right corner of the window.
04:58	A pop-up appears, in which we will click Yes.
05:03	Now we will connect the outlet material streams with the column.
05:08	Click on the Distillation Column.
05:10	Go to the left side of the window. Under Connections, go to Outlet section.
05:17	Then click on the drop-down against TopProduct and select Distillate.
05:25	Click on the drop-down against BottomProduct and select Bottoms.
05:32	Now we will connect the energy streams with the column.
05:36	Go to the Energy section. Then click on the drop-down against Reboiler heat duty.
05:43	Select R-Duty.
05:46	Now click on the drop-down against Condenser heat duty. Select C-Duty.
05:54	Now we will edit the properties of the Column.
05:58	Click on Open CAPE-OPEN Object Editor button.
06:01	The ChemSep window opens.
06:04	Click on Components on the left side of the ChemSep window.
06:08	We have already connected the feed streams to the column. So the components are already listed here.
06:15	Click on Operation on the left side of the ChemSep window.
06:20	Under Select Type of Simulation section, Equilibrium column is selected by default.
06:26	We are simulating a distillation column which is an equilibrium operation. So we will leave it as it is.
06:34	Now we will move to Configuration section.
06:38	Under Configuration, select Operation as Simple Distillation, if not already selected.
06:44	By default, Simple Distillation is already selected as Operation.
06:50	Select Condenser as Total Liquid Product, if not already selected.
06:56	By default, Total Liquid Product is already selected as Condenser.
07:01	Select Reboiler as Partial Liquid Product, if not already selected.
07:06	By default, Partial (Liquid Product) is already selected as Reboiler.
07:11	Next we will enter the Number of stages and Feed stage.
07:16	Type the Number of stages as 25 and press Enter.
07:21	A pop-up appears, in which we will click Yes.
07:26	Type the Feed stage as 11 and press Enter.
07:30	Click on Properties on the left side of the ChemSep window.
07:36	Here we will define the Thermodynamics, Physical Properties and Reactions taking place in the column.
07:42	First, we will define the Thermodynamics.
07:46	Click on the drop-down against K-value. Select DECHEMA.
07:53	Next, click on the drop-down against Activity coefficient and select UNIFAC.
08:01	Next, click on the drop-down against Vapour pressure and select Antoine.
08:08	Next, click on the drop-down against Enthalpy and select Ideal.
08:15	There are no Physical Properties or Reactions to be defined. So, we will not specify them.
08:22	Now click on Feeds.
08:25	The feed stream is already connected to the column.
08:29	So the feed stream properties are already displayed here. We will not change anything.
08:36	Now we will see how to define Pressure Profiles in Chemsep Column.
08:41	Click on Pressures on the left side of the ChemSep window.
08:46	Click on drop-down against Column pressure.
08:50	Select the pressure profile to specify for the column depending on pressure data available. By-default, Constant pressure is selected.
09:00	We will not change that as the column is operated at constant pressure.
09:05	Enter Condenser Pressure as 101325 Newton per meter sqaure
09:13	Enter Top Pressure as 101325 Newton per meter sqaure
09:20	Next click on Column Specs on the left side of the Chemsep window.
09:26	Go to Column Product Specifications section.
09:29	Select the Top specification as Reflux ratio, if not already selected.
09:35	By default, Reflux Ratio is already selected as Specification.
09:40	Beside that we can see a value field. Here we will enter Reflux Ratio as 1.018 and press Enter.
09:50	Now select the Bottom specification as mole fraction of a component, Enter the value as 0.01 and press Enter.
10:02	Below that, from the drop-down select Ethyl acetate.
10:07	Click on Save problem to file button on the toolbar.
10:11	Close the ChemSep window.
10:14	Now we will run the simulation.
10:16	To do this, click on Solve Flowsheet button on the toolbar.
10:21	When the calculations are completed, click on Distillate in the flowsheet.
10:27	From the Property Editor window, go to Input Data tab.
10:31	Under Compounds Amounts tab, we can see that the Ethyl Acetate composition is 0.999.
10:40	Let me save this simulation with the name Chemsep-Distillation.
10:46	Let's summarize.
10:48	In this tutorial, we have learnt to: Specify properties of a Chemsep column and Simulate a Distillation column
10:57	As an assignment, repeat this simulation with different compounds. Different feed conditions
11:04	Different Column Configuration
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12:03	This tutorial is contributed by Kaushik Datta and Priyam Nayak. Thanks for joining.

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