dc.contributor.author | Ervik, Åsmund | |
dc.contributor.author | Hellesø, Svein Magne | |
dc.contributor.author | Munkejord, Svend Tollak | |
dc.contributor.author | Müller, Bernhard | |
dc.date.accessioned | 2017-12-06T13:41:28Z | |
dc.date.available | 2017-12-06T13:41:28Z | |
dc.date.created | 2014-10-10T15:27:56Z | |
dc.date.issued | 2014 | |
dc.identifier.isbn | 9781479920655 | |
dc.identifier.uri | http://hdl.handle.net/11250/2469413 | |
dc.description.abstract | The behaviour of a single sub-millimetre-size water drop falling through a viscous oil while subjected to an electric field is of fundamental importance to industrial applications such as crude oil electrocoalescers. Detailed studies, both experimental and computational, have been performed previously, but an often challenging issue has been the characterization of the fluids. As numerous authors have noted, it is very difficult to have a perfectly clean water-oil system even for very pure model oils, and the presence of trace chemicals may significantly alter the interface behaviour. In this work, we consider a well-characterized water-oil system where controlled amounts of a surface active agent (Span 80) have been added to the oil. This addition dominates any trace contaminants in the oil, such that the interface behaviour can also be well-characterized. We present the results of experiments and corresponding two-phase-flow simulations of a falling water drop covered in surfactant and subjected to a monopolar square voltage pulse. The results are compared and good agreement is found for surfactant concentrations below the critical micelle concentration. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | nb_NO |
dc.relation.ispartof | 2014 IEEE 18th International Conference on Dielectric Liquids ICDL | |
dc.relation.uri | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6893172 | |
dc.title | Experimental and computational studies of water drops falling through model oil with surfactant and subjected to an electric field | nb_NO |
dc.type | Chapter | nb_NO |
dc.description.version | submittedVersion | nb_NO |
dc.identifier.doi | 10.1109/ICDL.2014.6893172 | |
dc.identifier.cristin | 1163103 | |
dc.relation.project | Norges forskningsråd: 206776 | nb_NO |
dc.description.localcode | © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | nb_NO |
cristin.unitcode | 194,64,25,0 | |
cristin.unitname | Institutt for energi- og prosessteknikk | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |