Creating a material stream in DWSIM - English
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- DWSIM Tutorials - English
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How to address an error in creating a material stream
Hello, Sir/Madam! I am currently exploring DWSIM version 6.2.9200.0. I am trying to make a material stream but the system always says that there is an error whenever I click "Accept Changes". It displays: DWSIM generated an unhandled error/exception.System.NullReferenceException: Object reference not set to an instance of an object. at DWSIM.Thermodynamics.MaterialStreamEditor.btnCompAcceptChanges_Click(Object sender, EventArgs e) in C:\Users\Daniel\source\repos\DanWBR\dwsim6\DWSIM.Thermodynamics\Editing Forms\Material Stream\MaterialStreamEditor.vb:line 740 at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)For screenshot, please click the link:https://drive.google.com/file/d/1jg5j4WUbJOixP6di5alVFLtorjqOf6Dv/view?usp=sharing
08-09M 50-60S MaharlikaPerez
Answer last updated on: April 10, 2021, 2:58 p.m.
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Stream process
What does mean input string was not in a correct format?
00-01M 0-10S cabreramiguelangel
Answer last updated on: Feb. 25, 2021, 4:59 p.m.
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Unable to update vapour phase mole fraction
I am using version 6.1 update 3 of DWSIM on a Mac.The software does not accept the value of 1 for the vapour phase mole fraction. In fact, it does not accept any value.
02-03M 10-20S kannan
Answer last updated on: Feb. 18, 2021, 2:24 p.m.
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On a Mac, Property Packages screen doesn't come
Instead, I am getting the screen "Step 2 - Process Model details".Don't know how to choose Raoult's law. Can you please explain.
01-02M 50-60S kannan
Answer last updated on: Feb. 18, 2021, 1:14 p.m.
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Cannot open new steady state simulation
I am using v 5.8 u 11 of DWSIM. When I open the application, it does not open to the task manager and there is no option to select under the files tab to select a new steady-state simulation. What do I do?/
00-01M 0-10S nupoorupadhye@gmail.com
Answer last updated on: Aug. 29, 2020, 12:06 p.m.
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How to Choose Appropriate Thermodynamic Property Package
How wil i know what property package goes well with a compound is there any specific rule for the same or any standards of choosing?
02-03M 0-10S gaya3arun99@gmail.com
Answer last updated on: Aug. 29, 2020, 11:50 a.m.
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Cannot locate New Steady-state Simulation under File Menu in DWSIM Version 6.1 Update 1
I am unable to find "New Steady-state simulation" option under File Menu as displayed in the tutorial. I am using DWSIM Version 6.1 Update 1.
01-02M 0-10S priyamnayak
Answer last updated on: Aug. 27, 2020, 11:21 p.m.
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the status of the steam
the status of the steam is always ''No Calculated''
00-01M 50-60S AbouHaydar
Answer last updated on: April 12, 2020, 6:06 p.m.
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Where is the specification button for Specification of the material stream?
Cannot find the specification button for specification of the material. Can you please help.
07-08M 30-40S priyamnayak
Answer last updated on: Aug. 1, 2019, 12:47 p.m.
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Cannot locate "Simulation Settings" button
This button is missing. Can you please help.
01-02M 0-10S kannan
Answer last updated on: Aug. 1, 2019, 1:58 a.m.
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Unable to find Components from DWSIM database.
It is said in the tutorial to add Benzene from DWSIM database, but current UI doesn't show any Benzene component from DWSIM database when searched for it.
02-03M 10-20S priyamnayak
Answer last updated on: Aug. 1, 2019, 1:55 a.m.
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Cannot locate Thermodynamics tab in Simulation Settings
Thermodynamics tab is missing Under Simulation Settings. Can you please help.
03-04M 40-50S priyamnayak
Answer last updated on: Aug. 1, 2019, 1:51 a.m.
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Not getting automatic pop-up to enter composition after dropping Material Stream in Flowsheet
After dropping the Material stream into flowsheet from Object Palette, there is no automatic pop-up to enter the composition. So where do one specify the composition of the stream?
05-06M 20-30S priyamnayak
Answer last updated on: Aug. 1, 2019, 1:36 a.m.
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Cannot locate the option to change "System of Units"
This option is missing. Can you please help.
06-07M 40-50S priyamnayak
Answer last updated on: Aug. 1, 2019, 1:32 a.m.
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Where to change the name of the Material Stream?
As there is no 'Appearance' tab with 'Name' field, how do one change the name of the Material Stream?
09-10M 20-30S priyamnayak
Answer last updated on: Aug. 1, 2019, 1:21 a.m.
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Cannot locate "Apply" button after entering the composition of the Material Stream
The "Apply" button is missing. Can you please help.
06-07M 10-20S priyamnayak
Answer last updated on: Aug. 1, 2019, 1:19 a.m.
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thermodynamics tab
in my dwsim installation the simulation settings are not as shown in the video am unable to find the thermodynamics tab?and also when i search for components i don't get components present in dwsim by i get components present in Chemsep
03-04M 40-50S Nikhilk5
Answer last updated on: May 4, 2017, 11:17 a.m.
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Creating a material stream in DWSIM -
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Introduction to Flowsheeting -
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Shortcut Distillation -
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Rigorous Distillation -
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Sensitivity Analysis and Adjust -
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Plug Flow Reactor -
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Continuous Stirred Tank Reactor -
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Conversion Reactor -
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Equilibrium Reactor -
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Gibbs Reactor -
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Heat Exchanger -
12
Shell and Tube Heat Exchanger -
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Binary Phase Envelope -
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Calculation of Bubble Points and Dew Points -
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Chemsep Distillation Column -
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Absorption Column -
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Heterogeneous Catalytic Reaction -
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Custom Unit Operation using Scilab -
19
Custom Unit Operation using Python -
20
Creating Multiple Reactions set
Questions posted on ST Forums:
25794 visits
Outline:
Defining Simulation Configuration Wizard window Selecting chemical compounds Selecting property packages Choosing the units Adding a stream to the flowsheet Defining mole fractions of a stream Defining stream condition of a stream Introduction to Property Editor Window
