PHASE BEHAVIOR AND INTERFACIAL PHENOMENA IN TERNARY SYSTEMS

Simple item page
dc.contributor.advisorAnisimov, Mikhail Aen_US
dc.contributor.advisorAdomaitis, Raymond Aen_US
dc.contributor.authorSubramanian, Deepaen_US
dc.contributor.departmentChemical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2009-10-06T06:39:09Z
dc.date.available2009-10-06T06:39:09Z
dc.date.issued2009en_US
dc.description.abstractPhase behavior in multi-component systems has a wide variety of applications in the chemical process industry. In this work, the interfaces in two-phase, three-component systems were modeled and studied. Direct calculations of the asymmetric concentration profiles near the critical points of fluid phase separation are very difficult since they are affected by mesoscopic fluctuations. In this study a "complete scaling" approach was used to model interfacial profiles for a highly asymmetric, dilute ternary mixture near the critical point of liquid-liquid separation. The symmetric order parameter profile, the density profile of the lattice gas model, was used to further calculate the asymmetric interfacial concentration profiles at the mesoscale. Fluid asymmetry has been introduced through mixing of the physical field variables into the symmetric scaling theoretical fields. The system-dependent mixing coefficients were calculated from experimental data and a mean-field equation of state, namely, the Margules model. The resultant interfacial profiles for the concentration of water across the methanol-rich and cyclohexane-rich phases show the asymmetry associated with the contribution of the entropy into the symmetric order parameter profile.en_US
dc.format.extent773087 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/9647
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Chemicalen_US
dc.subject.pquncontrolledasymmetric ternary fluidsen_US
dc.subject.pquncontrolledcomplete scalingen_US
dc.subject.pquncontrolledinterfaces interfacial concentration profilesen_US
dc.subject.pquncontrolledmesoscopic thermodynamicsen_US
dc.subject.pquncontrolledorder parameteren_US
dc.subject.pquncontrolledphase behavioren_US
dc.titlePHASE BEHAVIOR AND INTERFACIAL PHENOMENA IN TERNARY SYSTEMSen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Subramanian_umd_0117N_10700.pdf
Size:
754.97 KB
Format:
Adobe Portable Document Format
Download

Collections

UMD Theses and Dissertations
Chemical and Biomolecular Engineering Theses and Dissertations