Density of H20 @ 150 C & 600 psi pressure 1

[ajxxx]

Can anyone please show me how to look up Density of H20 @ 150 C & 600 psi pressure (Co2)....

I found a water table which shows 916.69 kg/m^3 but it does not show anything @ pressure. Isnt density related to both pressure & temp.?

What would be the difference in density if No gas was there and is gas was there?

 

[zdas04]

You started off ok, then went downhill quickly. What the heck does

(Co2)....

mean? Look at a water table like in Cameron Hydraulic Data. That shows that at 150C (302F) the boiling point is 67 psia, so you have a liquid at 600 psia (it is always a bad idea to use "psi", no one ever knows what that means). The density of water at that temperature and pressure is 0.9180 gm/cm^3.

To answer your basic question, as long as water is water, the change in density with pressure is very small (on the order of 0.002 volume reduction per 1,000 psi). So you go to the water table, find the temperature you are looking for, verify that the pressure is above the saturation pressure for that temperature, then use the density on the table.

I truly don't know what to do with your last statement since the gas discussion is so muddled in your post.

David

 

[IRstuff]

Just adding a bit to David's excellent missive. Water is, for most applications, considered to be an "incompressible" fluid.

TTFN

FAQ731-376

 

[25362]

http://webbook.nist.gov/cgi/fluid.cgi?ID=C7732185&Action=Page

 

[zdas04]

25362,
The NIST site has a Java script that didn't run for me. I bought REFPROP from NIST a couple of years ago and it is really stable. It gave me 0.91925 g/cm^3 which is 0.1% higher than I got from Cameron. The water tables seem to be way close enough for Engineering analysis.

David

 

[katmar]

The data given by NIST and by other references will always be for water much purer than you will ever see in the real engineering world. The latest articles I have seen on water density are arguing over the 5th and 6th decimal places. zdas04 is 100% correct that the numbers he gave are plenty good enough for normal engineering work.

But we don't know what you need the density for, and what your accuracy requirements are. Putting 600 psi CO₂ above the water will cause the slight compression zdas04 has noted, but CO₂ dissolved in the water will affect the density too. I guess it will increase the density, but I do not have any data (more accurately - I am too lazy to look for any). For normal engineering work I would ignore this change and use figures like zdas04 has given. But only you know what degree of accuracy you need.

Katmar Software
Engineering & Risk Analysis Software

http://katmarsoftware.com

 

[25362]

If CO₂ is indeed "acting" on top of water, one shouldn't overlook the resulting water acidity level.

 

[walz]

Check this one

http://www.wolframalpha.com/input/?i=density+of+water+at+150C+600psi