Eykman molecular refraction
Input(s)
\(\mathrm{P}_{\mathrm{v}}\): Vapor Pressure of Water \((\mathrm{psi})\)
P: Pressure (psi)
f: Fugacity of Water at Vapor Pressure (dimensionless)
\(\mathrm{f}_{\mathrm{w}}\): Fugacity of Water at Pressure P (dimensionless)
Output(s)
k: Eykman Constant (dimensionless)
Formula(s)
\[
\mathrm{k}=\left(\frac{\mathrm{P}_{\mathrm{v}}}{\mathrm{P}}\right) *\left(\frac{\mathrm{f} / \mathrm{P}_{\mathrm{v}}}{\mathrm{f}_{\mathrm{w}} / \mathrm{P}_{\mathrm{v}}}\right) *\left(\frac{\mathrm{P}}{\mathrm{P}_{\mathrm{v}}}\right)^{0.049}
\]
Reference(s)
John M. Campbell, Gas Conditioning and Processing, Campbell Petroleum Series, Oklahoma, 1992, Vol. 1, Page: 50