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