How to select property methods for supercritical fluids? Thank you!
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As the title suggests: How to choose property methods for supercritical fluids (such as oxygen, nitrogen, argon, natural gas, etc.)? Thank you!
I want to know too. Please ask the teacher for guidance.
Thermodynamic approaches for supercritical fluids generally rely on equation of state models. It has been seen that the PR equation and BWR equation are used to simulate the solubility of organic compounds in supercritical CO2, but these are usually applied through self-programmed calculations with additional corrections; there has been no attempt to handle this in ASPEN.
Calculations are performed using equations of state such as the RKS or PR equations. Since it does not involve gas-liquid equilibrium or liquid density, and most supercritical fluids have low polarity, equations such as BWR are of little use or do not make much difference.
I don’t understand what the original poster means! Since it involves a process from a cryogenic liquid to a supercritical fluid, I’m not sure how to choose?