Programming with DTL in LabVIEW

[Kevin Herrera Laya]

Hello

I'm programming with DWSIM Thermodynamics Library Standalone in LabVIEW and I want to know how to use PH and PS methods to solve flashes. I mean, what enthalpy or entropy I have to provide (enthalpy, enthalpyF, enthalpyNF)? and what basis needs, molar or mass?

I already "translate" the example in the link (https://github.com/DanWBR/DTL) to LabVIEW language and I use the PTFlash method, that one run perfectly but I do not know how to use other methods of flashes.

If anyone can help me, thank you very much.

Kevin Herrera Laya
Engineer Projects.

[Daniel Medeiros]

Hi Kevin,

You must provide "enthalpy" and "entropy" in mass basis (kJ/kg). Take a look at the API documentation for more details.

[Kevin Herrera Laya]

Thanks Daniel!

[Daniel Medeiros]

Hi Kevin,

A quick way to check if you're passing enthalpy in the correct basis is to do a PT flash, calculate mixture enthalpy and then send the value to the PH flash routine. The resulting temperature must be the same as the one in the initial PT flash.

[Kevin Herrera Laya]

Yes that's what I do for ckeck, thanks a lot!