DWSIM - Open Source Process Simulator / Discussion / Help (Classic UI): User Database in CAPE-Open Thermo

Uwe Silling - 2012-11-26

Hello,

a short question. Is it possible to use other *.xml (for eg. the Chemsep DB) databases in the DWSIM Cape Open thermo system.
And when yes - how ?
In my installation only the components from the DWSIM Database appear.
It would be usefull to export the DWSIM thermodynamik to other CapeOpen Systems.

Uwe

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Daniel Medeiros - 2012-11-26

Hi Uwe,

Yes you can. Just open DWSIM, go to Settings > General Settings and add the ChemSep database. The next time you open DWSIM in CAPE-OPEN mode, the ChemSep compounds should be available for selection.

Daniel

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Uwe Silling - 2012-11-26

Hi Daniel,

thank you for the fast reply...

Ok - fixed- I'have just reinstalled DWSIM and then it works that way.
(With my old instalation it did not for any reason....)

Uwe

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Uwe Silling - 2012-11-27

Hi Daniel,

me again ... there is still a problem. Today I tryed it in a Win7 maschine (reinstall DWSIM ...installl update patch..) but was not able to get the extra components (only DWSIM's componets re present) in the cape open thermo in COCO. In DWSIM itself all the components are displayed. Yesterday it was a XP where it works.

An hint what is wrong ?

Uwe

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Daniel Medeiros - 2012-11-27

Hi Uwe,

In this case try that procedure of adding the database manually. DWSIM tries to locate the database using registry information, which unfortunately doesn't work on all cases.

I think that you can also create a folder named "chemsepdb" inside DWSIM's installation folder and copy the chemsep xml database manually to it... try that too and see if it works.

Daniel

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Uwe Silling - 2012-11-28

Hi Daniel,

I tryed it .... no effekt.
Due it works on my XP Laptop, I have not realy a problem with that.

Thank you
Uwe

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Daniel Medeiros - 2012-11-29

Hi Uwe,

I think I've fixed it, but you'll have to wait for the next patch that should be released in the next two days (maybe).

Thanks,
Daniel

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Uwe Silling - 2012-12-01

Hi Daniel,

I´ve installed the patch to build 4716.
There are still problems loading the chemsepdatabase.
On start (Win xP-32 bit) the attached error (PDF) message apears.
When I try to change the database manually in the "Genaral Settings" dialog the following message appears:

System.NullReferenceException: Object reference not set to an instance of an object.
at DWSIM.DWSIM.Databases.ChemSep.Transfer() in C:\Users\Daniel\Documents\Visual Studio 2010\Projects\DWSIM\DWSIM2\DWSIM\Objects\Classes\Databases\Databases.vb:line 125
at DWSIM.FormMain.LoadCSDB(String filename) in C:\Users\Daniel\Documents\Visual Studio 2010\Projects\DWSIM\DWSIM2\DWSIM\Forms\FormMain.vb:line 627
at DWSIM.FormOptions.Button11_Click(Object sender, EventArgs e) in C:\Users\Daniel\Documents\Visual Studio 2010\Projects\DWSIM\DWSIM2\DWSIM\Forms\FormOptions.vb:line 152
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.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

I hope that´s a hint for you what´s going wrong.

Uwe

Fehlermeldung.pdf

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Daniel Medeiros - 2012-12-02

Hi Uwe,

Please install the latest version of ChemSep and try again: http://www.chemsep.com/downloads/data/lite.exe

I've noticed that they changed the xml structure of the database in the latest versions and so I did it too with the loader in DWSIM to reflect those changes.

Regards,
Daniel

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Gregor Reichert - 2012-12-03

Hi Daniel,
in this case i propose to issue a new full version bundled with latest version of ChemSep instead of an update patch. Other users which are not reading that discussion thread will allways run into trouble.

yours Gregor

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Daniel Medeiros - 2012-12-03

I agree. Will do that for the next build.

Daniel

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Uwe Silling - 2012-12-03

Hi Daniel,

I´m sorry - the same error-messages after installing the 6.93 ChemSep downloaded over the given link (startUP and trying to ad the chemsep.xml manualy).
Without a ChemSep installation DWSIM Build 4616 starts normal.

Regards
Uwe

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Daniel Medeiros - 2012-12-03

Hi Uwe,

Hold SHIFT while opening DWSIM until a message appears. Then, try to add the database manually if it doesn't load correctly.

Also, please check if the chemsep xml database has a "created on xx-xx-xxx by ..." element at the top, I think that it is the first or the second element of the structure.

Daniel

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Uwe Silling - 2012-12-03

Hi Daniel,

I tryed to add the database maualy. I did not work work. The posted error message apears.
In the header of the *.xml there are these elements :
'create-date="xx.xx.xxxx" create-time="xx:xx:xx" create-user="xxx"'

Regards

Uwe

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Daniel Medeiros - 2012-12-05

Hi Uwe,

Please re-download the patch and update DWSIM again, it should work this time. Sorry for the trouble. :-)

Daniel

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Uwe Silling - 2012-12-06

Hi Daniel,

thank you for fixing that issue.
I tryed it and it works !!!!!

Regards

uwe

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User Database in CAPE-Open Thermo

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User Database in CAPE-Open Thermo

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Simulate chemical processes using advanced thermodynamic models

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User Database in CAPE-Open Thermo