Iterative sequence for phase equilibrium calculations incorporating the Redlich--Kwong equation of state
Conference
·
OSTI ID:7223692
Phase equilibria equations which incorporate the Redlich-Kwong equation of state are nonlinear and therefore must be solved by an iterative method. The method of successive substitutions is commonly employed. This method, however, almost always diverges for bubble point, dew point, and two-phase calculations in the vicinity of the critical. Iterative methods which converge for these calculations are presented in this paper. The iterative methods are entitled ''minimum variable Newton-Raphson'' (MVNR) methods, since they attempt to minimize the number of variables for which simultaneous iteration is required, and they use the Newton-Raphson method for the correction step. Procedures are given for obtaining starting values for the first iteration. Several example problems are discussed.
- OSTI ID:
- 7223692
- Report Number(s):
- CONF-761008-59
- Country of Publication:
- United States
- Language:
- English
Similar Records
A robust iterative method for flash calculations using the Soave-Redlich-Kwong or the Peng-Robinson equation of state
Correlation of second virial coefficients of polar gases by Redlich-Kwong equation of state
Critical point analysis of phase envelope diagram
Journal Article
·
Wed Jun 01 00:00:00 EDT 1983
· SPEJ, Soc. Pet. Eng. J.; (United States)
·
OSTI ID:5522695
Correlation of second virial coefficients of polar gases by Redlich-Kwong equation of state
Journal Article
·
Mon Sep 01 00:00:00 EDT 1980
· A.I.Ch.E. J.; (United States)
·
OSTI ID:5999768
Critical point analysis of phase envelope diagram
Journal Article
·
Mon Mar 24 00:00:00 EDT 2014
· AIP Conference Proceedings
·
OSTI ID:22265989