2 replies to this topic

[antnfedak]

Hello.

I need some help with Hetran model for heat exchangers in Aspen Plus. I need to simulate a the behavior of a BEM type condenser.
I use Aspen Plus. I've chosen a Hetran model of equipment and inserted all of the information, that i have about the geometry of a condenser and the process it self, in Hetran simulation window inside Aspen Plus. In other words, i'm trying to run Hetran inside Apsen Plus interface.

When i do this a press "run" button, i get a lot of errors. Some of them are about the work not being defined.

What must be done to run Hetran inside Aspen Plus successfully?

Thank you very much!

PS: i can run Hetran outside Apen Plus, that's why i think that it has nothing to do with a license problem.

[jcazenave]

Hi

First thing is that HETRAN has been sunset by Aspentech so it is better to use Aspen SHell & Tube Exchanger which is the new software.

For the HETRAN make sure the case works outside Aspen+ then import it. Also make sure that the definition of the HX is correct, are you doing a simulation/rating/ design what is the spec?

Kind Regards

Edited by jcazenave, 05 May 2011 - 03:22 AM.

[xavio]

Hi,

Maybe some settings in your Hetran browser (within Aspen Plus) are incorrect.
If you are rating a vacuum condenser, it can be the pressure drop is too high. (Please try BJM or BXM.)
Also, you may experience temperature cross problem. (Please check the temperature profile.)
At last, your specification of the condenser may be illogical or not attainable.

If you can elaborate your problem, our forum members may offer better help.


xavio