Error in 'PNET-1': The given key was not present in the dictionary.

[Frederic Honnart]

Dear Mr Meideros
I am a recent user of the DWSIM last version 8.8.0.
I have realized the demo flowsheet like in the Video Pipe Network unit Operation.
The message log is:
" [15/07/2024 15:54:46] Connected SOURCE-000 to NODE-002.
[15/07/2024 15:55:15] Connected NODE-002 to PIPE-004.
[15/07/2024 15:55:18] Connected NODE-002 to PIPE-005.
[15/07/2024 15:55:37] Connected PIPE-004 to NODE-003.
[15/07/2024 15:55:41] Connected PIPE-005 to NODE-003.
[15/07/2024 15:55:56] Connected NODE-003 to SINK-001.
[15/07/2024 16:03:36] The flowsheet is being calculated, please wait...
[15/07/2024 16:03:37] Errors occurred during the calculation of the flowsheet, please read the following messages for more details.
[15/07/2024 16:03:37] Error in 'PNET-1': The given key was not present in the dictionary.
[15/07/2024 16:09:51] Errors occurred during the calculation of the flowsheet, please read the following messages for more details.
[15/07/2024 16:09:51] Error in 'PNET-1': The given key was not present in the dictionary.
"
When I put the estimate for NODE-002 Pressure=1.2 atm and NODE-003 Pressure =1 atm, the calculation gives an the error above and the pressures for the two nodes change to 121590 atm.

I have removed DWSIM with revo uninstaller and loading again with the installer. it does not improve.

In "unitops" I have the 'trial version". DWSIM.UnitOperations.PipeNetwork.Trial (.config, dll,pdb).
I purchased the free version of Pipe Network Unit Operation last saturday. But I did not installed yet. I don't know how to install it.

Same for installing Aqueous Electrolytes Property Package, how to install it ?

Thanks a lot
Frederic Honnart

[Daniel Medeiros]

Hi Frederic, I'll get in touch with you through your email