A quasi-analytical solution of Frost-Kalkwarf vapor pressure equation

C.F. Leibovici (1) , D.V. Nichita (2)

1 CFL Consultant
2 LFCR - Laboratoire des Fluides Complexes et leurs Réservoirs

For the solution of the Frost-Kalkwarf vapor pressure equation (which is both implicit and transcendent), an explicit solution is established in terms of Lambert function. A simple approximation is provided for generating a good, simple and inexpensive starting value usable by any root finder. Using Newton methods, all calculations converge within one or two iterations. © 2013 Elsevier Ltd.

Mots clés: Explicit solutions; Lambert function; Numerical solution; Root finder; Vapor pressure equation; Hydrostatic pressure; Newton-Raphson method; Vapors; Vapor pressure

Domaines: Chimie-Physique [physics.chem-ph]

C.F. Leibovici, D.V. Nichita. A quasi-analytical solution of Frost-Kalkwarf vapor pressure equation. Computers & Chemical Engineering, 2013, 58, pp.378-380. ⟨10.1016/j.compchemeng.2013.07.003⟩. ⟨hal-00904698⟩