The latest version has been expanded further in response to user requests and NIST efforts to include more of the most widely used fluids.Īmong its new features, Version 8.0 provides properties of ethanol, cryogenic fluids, and additional natural gas components. When the previous version was issued in 2002, the name was changed to Reference Properties, denoting a broader range of fluids including some natural gas components. Widely used by industrial, academic, and government scientists, the database originally was called Refrigerant Properties and was limited to thermophysical properties of alternative refrigerants. Please contact us for a complimentary discussion of your needs.Data on key components of alternative fuels, such as ethanol and hydrogen, are among the many new additions to NIST’s Reference Fluid Thermodynamic and Transport Properties Database Version 8.0, which provides critically evaluated property values needed to evaluate fluids and optimize related equipment and processes. provides software development services and can help with your software project needs with including a RefProp C# interface (and in other areas). Download the IRefProp64/RefProp_CS_Demo C# source code from NIST’s RefProp GitHub site and begin creating your C#/RefProp programįor a quick start tutorial on creating your own C#/.Net program that calls the native RefProp methods, please watch the following YouTube video:.Watch our short quick start video C# Interface for REFPROP using IRefProp64.dll (below).Download/run the sample RefProp_CS_Demo C# Windows programs binaries click here.Next Steps in Getting Started using the RefProp C# Interface… For a more technical discussion, please see the Microsoft MSDN article Interoperating with Unmanaged Code. Fortunately, IRefProp64 handles the task of marshaling of data via the Microsoft COM interface.
The process of converting the internal memory from a managed to unmanaged (and vice versa) is known as “ marshaling”. Each environment requires the data such as (such as strings, integers and doubles) be converted and managed in their own internal format. The main difference between a C#/.Net program which runs in a “ managed” environment, and an unmanaged native code program which runs in “ unmanaged” environment ( RefProp) is in how memory is allocated, released and formatted internally.
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