success 343571 NIST Refrence Properties Database 2009-05-27T05:53:58Z 2009-06-10T09:11:53Z The project is wrapper for the NIST Refrence Properties Database for pure fluids and mixtures thermodynamic properties currently on Pure Fluid are supported The database website [url:http://www.nist.gov/srd/nist23.htm] The aim of the project is to make the fluid or mixture as an object to be processed alone without the necessity to work with only one fluid/mixture per program sample code PureFluid Water = new PureFluid("Water"); PureFluid Ammonia = new PureFluid("Ammonia"); Ammonia.CurrentUnitsBasis = UnitsBasis.Mass_Basis; Water.CurrentUnitsBasis = UnitsBasis.Mass_Basis; for (int P = 100; P <= 600; P += 50) { Console.WriteLine("{0} {1} {2}", P, Water.GetSaturatedTemperature(P) - 273.15, Ammonia.GetSaturatedTemperature(P) - 273.15 ); } the managed library is making the transition between fluids internally and keeps you focused on what you are doing. I am planning to add MixedFluid class also to make some methods as ThermoDynamic Processes like fluid.AdiabaticCompress(); fluid.IsentropicCompress(); etc. Hope it will be useful for you as it was useful for me :) http://managedrefprop.codeplex.com ManagedRefProp 0 0 Microsoft Reciprocal License Microsoft Reciprocal License