Compressibility factor for water
Compressibility factor for water
(OP)
Dear All,
I need the value of compressibility factor for water with restricted pressure 1000 psig or below.
Thanks for any valuable replay
I need the value of compressibility factor for water with restricted pressure 1000 psig or below.
Thanks for any valuable replay





RE: Compressibility factor for water
around 5.1e−10 Pa^−1
RE: Compressibility factor for water
Drexl's number from wiki is 0.36%/1000psi. I found similar numbers to that for hydraulic oil, but the most common number I found for water was around 0.2%/1000 psi. For the project I was working on, that would have mattered. For pressures under 1,000 psig I don't think the difference matters.
David
RE: Compressibility factor for water
The bulk modulus K can be formally defined by the equation:
K = -V ∂P/∂V
where P is pressure, V is volume, and ∂P/∂V denotes the partial derivative of pressure with respect to volume. Compressibility of water is 1/K = 0.003205 in2/lb
or in this case 3.205/1000 psi, getting pretty close to zdas' value.
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Compressibility factor for water
Thank's all for some precious feedback.