Abstract
A model for the transfer of mass and thermal energy in a vapour-liquid region is used to investigate the influence of neglecting coupling on the transfer rates. As an example, we studied a nitrogen-oxygen distillation column. Using a combination of stage and point boundary conditions, a nitrogen transfer profile is obtained that shows the same trend as a profile based on an equilibrium stage distillation model. The distribution of the total transfer over the two column halves is not in agreement, however. This disagreement can be expected to decrease when the dependency of the vapour film thickness on the vapour flow rate and the vapour viscosity is included in the model. The effect of neglecting coupling on the calculated transfer rates changes along the length of the column. The total effect is considerable and should be taken into account in models for the transfer of mass and thermal energy through an interface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
