Download Estimating Saturated Liquid Densities

MS Excel calculation spreadsheet to help in the estimation of density values for saturated liquids.

This download accompanies the blog entry at:

http://www.cheresources.com/invision/blog/4/entry-119-estimation-of-saturated-liquid-density/

Disclaimer: All software provided "As-Is" with no warranty, expressed or implied, available. See our Terms of Use for more information.

viral desai

May 23 2011 12:34 AM

I have downloaded and prediction is excellent..What about super critical fluids ?

breizhonek

Nov 29 2011 07:16 AM

Unfortunately, the precision of these equations is a real issue. As your example shows it for ammonia, you have respectively a liquid density of 0.510 and 0.606 g/cm3. Refprop calculation gives 0.584 g/cm3, which shows respectively 12% and 3% difference.
I have checked many of these equations; very few give satisfaction ( i.e. precision unde 2 % ) over an entire range of temperatures and at the condition to stay under 90% of the critical temperature. Among the simple ones are : Guggenheim, SNMO, and PTV ( patel-teja-valderama). Regards