3 replies to this topic

[m_alaei]

As new and proper thermodynamic models have been developed recently, it seems that using them in simulators could help chemical engineers to simulate their Processes in special cases better. So, I would appreciated anybody who could help me in knowing how to define them in conventional simulation softwares such as Aspen Hysys, ProII, Aspen Plus, etc., particularly in Hysys ver. 3.1.
It shouldn't be unmentioned that I know we can make some extentions by customization,but as a matter of lack of time I need a tutorial or example to define my "Property Package" in These Softwares.

Mohammad R. Alaei
eng.alaei@gmail.com

[abhi_agrawa]

alaei,
It is not easy to incorporate a new thermodynamic package (eg. COSMO-RS which is not implemented in any commercially available simulator). However, I have often tweaked the existing one and that is easy to do in most of the simulation packages. I often use experimentally derived K-values for most of my work. I overwrite the default K- values in PRO-II with the ones that have been experimentally determined.

abhishek

As new and proper thermodynamic models have been developed recently, it seems that using them in simulators could help chemical engineers to simulate their Processes in special cases better. So, I would appreciated anybody who could help me in knowing how to define them in conventional simulation softwares such as Aspen Hysys, ProII, Aspen Plus, etc., particularly in Hysys ver. 3.1.
It shouldn't be unmentioned that I know we can make some extentions by customization,but as a matter of lack of time I need a tutorial or example to define my "Property Package" in These Softwares.

Mohammad R. Alaei
eng.alaei@gmail.com

[m_alaei]

Dear abhishek,

Thank you for your response. As I have metiond in first message, I am familiar with ProII, but I haven't work with it professionally. If I could ask you help me to do that in detail("using experimentally derived K-values" and "overwrite the default K- values in PRO-II") for example from a conventional EOS like PT EOS(Patel and Teja EOS), I would appreciate you so much.

Thanks,
Mohammad R Alaei
eng.alaei@gmail.com

[abhi_agrawa]

Alaei,

I usually use the "keyword input file", when I have to modify the default PRO-II K-values. If you are familiar with the keyword file then: when you define the THERMODYNAMIC DATA you can put in your own K-values. Please refer to the Keyword Manual for the syntax. If you use the GUI (Provision GUI) then when you select the thermodynamic method to be used, there you can modify your method.

If you still have problems, let me know, I'll try to send a sample input file.

abhishek

Dear abhishek,

Thank you for your response. As I have metiond in first message, I am familiar with ProII, but I haven't work with it professionally. If I could ask you help me to do that in detail("using experimentally derived K-values" and "overwrite the default K- values in PRO-II") for example from a conventional EOS like PT EOS(Patel and Teja EOS), I would appreciate you so much.

Thanks,
Mohammad R Alaei
eng.alaei@gmail.com