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Difficulty Finding Hydrogen (H2) Properties for Gas Properties (G) Block

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Hi everyone,
I'm having some trouble finding the different properties of Hydrogen (H2) that I need to set in the Gas Properties (G) block in Simscape. I'm hoping someone here can provide me with some guidance on how to approach this.
Can anyone recommend a resource or provide some tips on how to determine these properties for Hydrogen (H2)?
Any help would be greatly appreciated!
Thanks in advance,

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Are Mjaavatten
Are Mjaavatten il 23 Feb 2023
Modificato: Are Mjaavatten il 23 Feb 2023
The real gas option in Simscape requires tables of properties as functions of temperature and pressure. You will find the data you need in the NIST Chemistry Webbook's Thermophysical Properties of Fluid Systems. You may download 1D tables for constant temperature and varying pressure or vice versa.
My File Exchange contribution nistdata provides a function will read the NIST data and create a struct of 2D tables in temperature and pressure. You may have to convert the units of some variables to agree with Simscape's standards. The units in the tables from nistdata.m are given in the help section of the file.
I also have another File Exchange contribution Thermodynamic models and tools for H2O, H2, CO2 and Air that will give you a flexible tool for solving a range of thermodynamic problems. This uses the same models as NIST. But for your needs, I would recommend nistdata or manually downloading from NIST.

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