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Binary Mixtures using coolprop in Matlab

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Hussein
Hussein on 9 Aug 2023
Commented: Yifeng Tang on 14 Aug 2023
Dear All,
I need your support to know how can I create a refrigerant mixture in matlab using coolprop libraryand I'm already uploaded coolprop library into matlab:
I need to to know the specs, of this mixture,
Composition: 31.1% R1234yf, 68.9% R32
Regards
  1 Comment
Star Strider
Star Strider on 9 Aug 2023
I do not have Simscape (or Simscape Fluids), so I am not posting this as an answer. Searching on ‘coolprop’ brings up CoolProp to the Rescue, and searching on ‘refrigirant mixture’ brings up these results.

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Answers (1)

Yifeng Tang
Yifeng Tang on 10 Aug 2023
Edited: Walter Roberson on 10 Aug 2023
Looks like you can use the MATLAB wrapper for Coolprop to define a mixture and query the properties, like below:
py.CoolProp.CoolProp.apply_simple_mixing_rule('R1234yf','R32','linear')
py.CoolProp.CoolProp.PropsSI('Dmass','T',300,'P',101325,'R1234yf[0.311]&R32[0.689]')
Reference:
  2 Comments
Hussein
Hussein on 10 Aug 2023
Please, this message error appear:
Error using CoolProp/CoolProp.apply_simple_mixing_rule
Python Error: RuntimeError: CAS pair(75-10-5,754-12-1) already in binary interaction map; considering
enabling configuration key OVERWRITE_BINARY_INTERACTION
Error in CoolProp/CoolProp.apply_simple_mixing_rule (line 317)
Yifeng Tang
Yifeng Tang on 14 Aug 2023
I think that's because the mixture was defined once already in CoolProp. I got the same message if I try to run the apply_simple_mixing_rule code twice. You can comment out that line and try again, or restart MATLAB :)

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