Register to reply

Step by step algorithm to calculate VLE data from Redlich-Kwong?

by maistral
Tags: algorithm, calculate, data, redlichkwong, step
Share this thread:
maistral
#1
Aug29-13, 06:10 PM
P: 78
I keep on reading that VLE data may be calculated from the Redlich-Kwong. In line with this, I have these questions:

1) How accurate is the VLE data generated with the Redlich-Kwong as compared to using the vapor pressures to calculate these VLE data?
2) Can you guys give me a link, or even better, a rundown which includes step by step instructions on how to calculate VLE using Redlich-Kwong?

Thanks and more power.
Phys.Org News Partner Engineering news on Phys.org
Catching grease to cut grill pollution
Researchers develop tool to predict the level of driver discomfort caused by LED lighting
New inexpensive and easy to implement computer software provides real-time and highly accurate data on traffic
Chestermiller
#2
Sep1-13, 11:31 AM
Sci Advisor
HW Helper
Thanks ∞
PF Gold
Chestermiller's Avatar
P: 5,038
Quote Quote by maistral View Post
I keep on reading that VLE data may be calculated from the Redlich-Kwong. In line with this, I have these questions:

1) How accurate is the VLE data generated with the Redlich-Kwong as compared to using the vapor pressures to calculate these VLE data?
2) Can you guys give me a link, or even better, a rundown which includes step by step instructions on how to calculate VLE using Redlich-Kwong?

Thanks and more power.
The Redlich-Kwong equation is an EOS used to predict PVT behavior of a pure vapor species at pressures above the ideal gas region. If you are dealing with a vapor mixture in equilibrium with a liquid phase at a pressure above which the ideal gas equation applies, one can use ideal solution theory to predict the VLE behavior. Part of this procedure makes use of an equation of state to predict the fugacities of the various species in the gas phase. Sometimes people use Redlich-Kwong. See Smith and Van Ness.

Chet


Register to reply

Related Discussions
Step-by-step notes from sophomore DiffEqs to postgrad physics Academic Guidance 0
I'm looking for a software program that solves physics problems step by step to learn Math & Science Software 2
Adaptive step size algorithm in c++ for runge kutta Programming & Computer Science 2
Step-by-step guide to mastering calculus from little/no maths knowledge Academic Guidance 2
Newb Success! Gfortran & G77 in Vista. Step by Step Tutorial. Programming & Computer Science 7