Jeff Henning
Jeff Henning
Yeah, I've been thinking there's something else going on here. There's no direct S(p,h) function in IF97, so it's doing some gyrations here with an intermediate step. There may be...
@fwitte Sorry, been tied up with work. So, the left side of your range is definitely in the two-phase region. For this enthalpy, those lower pressures are in the two-phase...
@fwitte you are more than welcome to make a PR. Otherwise I'll take a look over the summer here. I'm slammed at work right now but should have some time...
Thanks @fwitte. I may have some self-quarantine time coming up to look at this again. Your code will give me a good start.
@fwitte It's been a while, but I think I have sorted out what is going on and am implementing a fix for it in IF97 (stand-alone). I can then get...
There's also an [IAPWS formulation 2001 for the Thermodynamic Properties of Ammonia-Water Mixtures](http://www.iapws.org/relguide/nh3h2o.pdf). This one is based on a combinatorial Helmholtz EOS.
@ibell , will that be open literature, or proprietary to RefProp?