4 replies to this topic

[sim_sim]

Hi Everyone!

 

I am currently trying to simulate a real VDU unit but unfortunately the simulation isn't converging.

 

Can anyone please give me some guidance about this?

 

Currently the specifications I am using to run the simulation are:

 

PA rates (LVGO, HVGO and one quench)

Product Rates (LVGO and HVGO)

Recycle Rates (LVGO recycle and HVGO Recycle)

Top Temperature

Flash Temperature

 

 

 

Thank you,

[thorium90]

Perhaps the problem is similar to the one in the following thread?

http://www.cheresour...age-transition/

 

Or, perhaps you can zip and post your hysys file here.

[sim_sim]

Hi,

 

Actually I can not send you the file because of the format. The simulator is not Hysys but Petro-Sim. I putted Hysys in the thread name because Petro-Sim is based in Hysys.

 

Concerning the thread you posted I will take a look and after that I will send you some feedback.

 

Thank you for your help.

[sim_sim]

Hi,

 

Thank you for your help. I managed to converge the column 

Thank you once again,

[sim_sim]

Hi,
 
So, I managed to converge the column using the specs that you can see in the attached figure.

Can you comment about the specs I am using? Do you think these are the "right" ones?

Also, in the simulations, I have a relative error of 15% in the 5%d86 ASTM of LVGO when comparing to the lab data. How can I adjust that property? 

 

Thank you

 

sim_sim

Attached Files

•  specs.png   17.94KB   4 downloads