phast model

[macvin]

Hi,

I have to run a model in which LPG is transferred from Refinery to storage terminal through LPG pipeline. Which scenarios I can consider for model input??
I was trying for long pipeline scenario, however the model says long pipeline scenario cannot be considered for mixtures. Please help.

Regards,
-Macvin

[safetyuser]

Hi,

I have to run a model in which LPG is transferred from Refinery to storage terminal through LPG pipeline. Which scenarios I can consider for model input??
I was trying for long pipeline scenario, however the model says long pipeline scenario cannot be considered for mixtures. Please help.

Regards,
-Macvin

with small size holes I would use the vessel leak model, it should not make much difference.

If you have large holes or ruptures the dynamics in pipeline is complicated: you cannot leave the pipeline model out of consideration.
Furthermore since you have LPG the flash is important at release. In these cases in the past I used to model the release with hysys.

[nmerzak]

hi
you can create a new mixture in phast
LPG=propane +butane+...
click on the icon matrials(global) then the icon materials (local)
three icon will be activated (with color red, green, red+yallow)
choose insert mixture (the color of the icon is red+yellow).

[macvin]

hi
you can create a new mixture in phast
LPG=propane +butane+...
click on the icon matrials(global) then the icon materials (local)
three icon will be activated (with color red, green, red+yallow)
choose insert mixture (the color of the icon is red+yellow).

I could add the mixture but I'm not able to run the same for long pipe line scenario.

[nmerzak]

there is no relation between the long pipeline scenario and the material or mixture.
can you explain again the probleme??