water H2o density and bulk modulus at 194 C 180 Bar abs
water H2o density and bulk modulus at 194 C 180 Bar abs
(OP)
how can I calculate bulk modulus and density of water at 194 C 180 Bar ?
From my papers I get a density of about 880 Kg/m3 but I would need an accurate value
From my papers I get a density of about 880 Kg/m3 but I would need an accurate value





RE: water H2o density and bulk modulus at 194 C 180 Bar abs
http://webbook.nist.gov/chemistry/
Click on Formula or Name and enter H2O or water and select the data you want.
Katmar Software
Engineering & Risk Analysis Software
http://katmarsoftware.com
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
The NIST value at 194oC and 180 bar absolute for density is 883.18 kg/m3
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
Use the table by NIST as suggested by Katmar. One equation you can apply for the modulus E is:
Another, although less exact, is:
where
c = speed of sound
ρ = density
Δρ= density difference
ΔP = pressure difference
I suggest to never use more than three significant figures, for example, at the conditions mentioned above, 1.36×109.
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
PaoloPemi, by selecting two pressures 2 bar apart enclosing the pressure in question one can use the equation above. Alternatively, just by reading the densities at two pressures just 1 bar apart, at any selected temperature, the calculation reduces to:
I don't have IAPWS 1995 steam tables, but I can tell the exactness of the data by NIST is beyond reproach.
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
BTW I do not discuss the quality of NIST data which I appreciate only suggest different ways to get reliable data.
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
Is it warranted when considering the probable errors in thermometry and pressure measurements ?
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
Katmar Software
Engineering & Risk Analysis Software
http://katmarsoftware.com
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
RE: water H2o density and bulk modulus at 194 C 180 Bar abs
Anyway, we are splitting hairs and MarcTroy has got the information he needed - and confirmed from several sources.
Katmar Software
Engineering & Risk Analysis Software
http://katmarsoftware.com
RE: water H2o density and bulk modulus at 194 C 180 Bar abs