3 replies to this topic

[rgmmelo]

Hello, I try to use Hysyslib to export and import variables during dynamic simulation on hysys to matlab. I Can read variables from hysys, but when a I try to change a value in the cell on hysys from matlab, if the hysys run the value is passed with another unit, if stopped the correct value is passed. For exemple
passing(Hysys running) T=450 F the value in hysys change to 752, as 450 was in ºC and not in ºF.
Passing(Hysys running) F=1000 kg-mol/hr, they change to 3.600*10^6 in hysys, that is 1000(Kgmol/hr)*3600 seconds/hr.

I using Hysys 3.2 and Matlab 7.8.0. Any idea to solution this?

Edited by rgmmelo, 26 November 2009 - 06:37 PM.

[PSDC_YU]

Hello, I try to use Hysyslib to export and import variables during dynamic simulation on hysys to matlab. I Can read variables from hysys, but when a I try to change a value in the cell on hysys from matlab, if the hysys run the value is passed with another unit, if stopped the correct value is passed. For exemple
passing(Hysys running) T=450 F the value in hysys change to 752, as 450 was in ºC and not in ºF.
Passing(Hysys running) F=1000 kg-mol/hr, they change to 3.600*10^6 in hysys, that is 1000(Kgmol/hr)*3600 seconds/hr.

I using Hysys 3.2 and Matlab 7.8.0. Any idea to solution this?

Hi
I dont much about hysys to matlab optimization but u can use the same objective function in excel connected through Visal basic
hope it is use ful to u

regards
khan

[joerd]

Hello, I try to use Hysyslib to export and import variables during dynamic simulation on hysys to matlab.

I don't know how Hysyslib was implemented, and I don't quite see the difference in your examples, but Hysys' internal units are degrees C, and kgmol/s. It looks like your transfer function directly passes the value, without explicitly specifying the units of measurement. You should contact the programmer of Hysyslib and discuss it with him/her.

The correct syntax in Visual Basic would be ProcessStream.Setvalue(450, "F")

[Amiemashad]

Hello, I try to use Hysyslib to export and import variables during dynamic simulation on hysys to matlab. I Can read variables from hysys, but when a I try to change a value in the cell on hysys from matlab, if the hysys run the value is passed with another unit, if stopped the correct value is passed. For exemple
passing(Hysys running) T=450 F the value in hysys change to 752, as 450 was in ºC and not in ºF.
Passing(Hysys running) F=1000 kg-mol/hr, they change to 3.600*10^6 in hysys, that is 1000(Kgmol/hr)*3600 seconds/hr.

I using Hysys 3.2 and Matlab 7.8.0. Any idea to solution this?

I thinks you can help me and I would be very grateful if you guide me.

I want to connect my HYSYS to Matlab, actually I want to get a set of data in hysys automatically by matlab. I wonder do you know what should I do?
I wonder is Hysyslib suitable for my goal?

Thanks in advance