![]() This link will take you to a blog post that tells you more about it and how to get a copy, including a free student version that will allow you to make your own charts for water, CO2, R134a, nitrogen, methane, propane, hydrogen, and dodecane (a possible alternative to jet fuel). Facilitating that process was an application called REFPROP, developed by NIST (the National Institute of Standards). I personally learned a lot and gained some comfort from plotting my own versions of the diagrams for steam, which are what I have used here to illustrate with and a p-h diagram for Refrigerant 134a. ![]() One of the ways to become comfortable with them is to start working with them or looking at examples of working with them like the ones you will find in this blog post or in this application engineering guide from Sporlan that looks at working with the pressure enthalpy diagram for a refrigerant. Of course, these diagrams can be quite intimidating at first.
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