The difference with water and IF97::water?

[kiwishall]

According to the coolprop document , "Water is the only fluid name that can be specified, as IF97::Water". In SharpFluid, only water can be specified in fluidlist. I solved the water property with the pressure and temperature the same as coolprop property, and the result has a little difference. I don't know the reason. Is there any difference with water and IF97::water? Should we define a IF97::water so that we can invoke a IF97water?

[MadsKirkFoged]

Hi @kiwishall,

I think we need more information what the different is and what we gain.

As I can read it it is a speed<-> accuracy tradeoff

http://www.coolprop.org/dev/fluid_properties/IF97.html

While IAPWS-IF97 is faster, it is less accurate than the IAPWS-95 formulation, but within 1% uncertainty for all properties (and in many areas within 0.1%) except very near the critical point. Details of this formulation can be found in IAPWS-IF97, released in 2007 and updated in 2012.