You can look at the help files. Or you can submit a question to Aspen technical support.  Trying to disassemble software to get at its underlying equations violates any user agreements in place and is most likely illegal.

No, i don't want to disassemble the software, and i don't even know how to do it. I want to check the equation it uses with the ones I have manually generated. Also, we get equations when we transfer the aspen plus model to aspen plus dynamics under active model section.!! I just wanted a simpler way, Anyways Brian Thanks for your help..!!!

they are MESH (mass energy summation &energy balance equations). based on my low knowledge of process simulators (hysys), no such way is existed for simple users to see the equations. in the higher versions, i do not know.

I think no way to extract the mathematical equation from the aspen software, except you can get the original code of the software. But it's of course secret.

you can only use the help menu for the same. whatever the other means you will violate the terms and condition of using the aspen plus. You can also contact to aspen support team they will help you out.

There is no such way and  Do not even try to extract data by illegal. After-all they are the equations which we regularly encounter in our daily text book calculations (e.g VLE, LLE equations). Best way you can contact aspen team if have some issue.

Hi,

as pointed out above, the equations implemented are MESH. These are essentially First Principle modeling equations. The letters in the acronym stand for

M - mass conservation

E - equilibrium conditions (thermodynamic equilibrium)

S - summation condition

H - enthalpy conservation, although strictly enthalpy is not a conserved variable, but internal energy is.

This information is what you also find in the Aspen help files if you just hit the F1 key and look for th process models. Of course you can call the Aspen support any time to ask for additional help. If you are looking fo these equations just compare them to the help files.

If you are wondering about the numerical implementation, that is rather difficult to compare. My expericence with AspenTech and its customer support is, that they will not provide any information on that.

Regards,

André