Wrote

How can I get properties of mixtures e.g

CoolProp_Props("Dmass","T",273+100,"P",101.3*10^3,"Helium[0.5]&Xenon[0.5]"

ref: http://www.coolprop.org/fluid_properties/Mixtures.html

This can't be done directly in the current version of the plugin. It is not clear how to call the apply_simple_mixing_rule() function from the library, it can't be imported as it is not in the export table.





maple-python-coolprop.sm (6.61 KiB) downloaded 945 time(s).
maple-python-coolprop.pdf (19.18 KiB) downloaded 591 time(s).


maple-python-coolprop-2.sm (5.08 KiB) downloaded 913 time(s).

Wrote

How can I get properties of mixtures e.g

CoolProp_Props("Dmass","T",273+100,"P",101.3*10^3,"Helium[0.5]&Xenon[0.5]"

ref: http://www.coolprop.org/fluid_properties/Mixtures.html

Hi. Notice that Refprop from NIST can't handle He/Xe mixing either. At least version 9.

On the other hand, maple doesn't seem to implement the procedure that Viacheslav points out either, as can be seen in the online documentation for the latest version.

However, very good values can be obtained using Coolprop in SMath and some basic stoichiometry.

Mixing gases.sm (19.17 KiB) downloaded 877 time(s).
Mixing gases.pdf (67.22 KiB) downloaded 579 time(s).

Best regards.
Alvaro.

More simple



maple-python-coolprop-3.sm (10.97 KiB) downloaded 910 time(s).
maple-python-coolprop-3.1.sm (10.82 KiB) downloaded 928 time(s).
maple-python-coolprop-3.2.sm (10.89 KiB) downloaded 883 time(s).

Now you can write like this



maple-python-coolprop-3.3.sm (9.51 KiB) downloaded 929 time(s).

Or like this



maple-python-coolprop-3.4.sm (10.66 KiB) downloaded 917 time(s).
maple-python-coolprop-3.5.sm (10.3 KiB) downloaded 911 time(s).

maple-python-coolprop-3.6.sm (9.98 KiB) downloaded 928 time(s).

is fantastic!
this no work the first time but after I play with the another examples this work, very well
thank you!

Without "pyfile" (inline multiline script). The script should be without comments.

Space padding is necessary here so that inside the script, when a large string is divided into parts, the line break character itself is not divided ( '\n' -> '\ n' ).



maple-python-coolprop-3.7.sm (9.9 KiB) downloaded 890 time(s).
maple-python-coolprop-3.8.sm (6.84 KiB) downloaded 912 time(s).
maple-python-coolprop-3.9.sm (8 KiB) downloaded 901 time(s).

Uni, can you please help me how to add python into SMATH, I have python already in system [WinPython 3.9] How I link it up with Smath?

I have working CoolProp

Jean, can you help me how do integrate python in my Smath? I event tried environmental variables under Win10 but didn't work

You should use a double slash for the full path.

Wrote

I event tried environmental variables under Win10 but didn't work

In this case, you need to check whether python is available from the command line. If not, it means that the paths are specified incorrectly.

uni, thanks a lot
Can you tell me what is this block you used after python sub-section [i.e with the square bracket & holding script conetnts]

Additionally Razonar sample here is also very intuitive while calculating mixing values
https://en.smath.com/forum/yaf_postsm82120_Understanding-Redlich-Kwong-equation-of-state.aspx#post82120

Wrote

uni, thanks a lot
Can you tell me what is this block you used after python sub-section [i.e with the square bracket & holding script conetnts]

Mathcad Block from the Mathcad Toolbox plugin and just Text inside it for the script.

uni, so it means the text inside the block is not automatically generated. Can you please explain the construct

On second note you were correct, I fixed my environment variable under windows %python% now works

Phase diagrams with CoolProps.



PhaseDiagram.sm (39.17 KiB) downloaded 920 time(s).

Best regards.
Alvaro.

Psychrometric Chart with CoolProps. 'Simplified' version (more readable): Enthalpy lines overlap web bulb temperature lines.



PsychrometricChart.sm (125.39 KiB) downloaded 893 time(s).

Best regards.
Alvaro.

I think I have found some problems while using plugin to get phase properties as discussed here: http://www.coolprop.org/coolprop/HighLevelAPI.html#imposing-the-phase-optional

First when using "P|phase_gas" it doesn't accept units & T,P values have to be directly written in SI equivalent


Second there is a value discrepancy when using "P" & "P|phase_gas" for a fluid that exists only in gas phase at that T,P

File not found.File not found.

It seems that multiple instances of SMath can't use the plugin at the same time.

How to reproduce:
1. Open SMath and access any Coolprop function
2. Open another SMath instance: You get an error message