- -

Comparison between bubbling and turbulent regime for the simulation of batch pharmaceutical powders fluidized bed drying

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Comparison between bubbling and turbulent regime for the simulation of batch pharmaceutical powders fluidized bed drying

Show simple item record

Files in this item

dc.contributor.author Zammouri, Amel es_ES
dc.contributor.author Boudhrioua Mihoubi, N. es_ES
dc.contributor.author Kechaou, N. es_ES
dc.date.accessioned 2019-03-21T07:30:19Z
dc.date.available 2019-03-21T07:30:19Z
dc.date.issued 2018-09-07
dc.identifier.isbn 9788490486887
dc.identifier.uri http://hdl.handle.net/10251/118299
dc.description.abstract [EN] The two-phase theory has been frequently used to model fluidised bed drying. At high air velocities, a transition from the bubbling regime to the turbulent regime may occur. In this work, we compare a bubbling model and a turbulent model for the simulation of a two pharmaceutical powders drying in a pilot plant and an industrial plant fluidised bed. The bubbling model was based on a discrete variable bubble size. Heat and mass transfer coefficients were based on the Kunii and Levenspiel correlation [1]. Flow regime was supposed to be completely mixed for the emulsion phase. For the turbulent model, the bubble size is not anymore discrete but continuous and bubble phase is less distinguishable than in the bubbling regime. Heat and mass transfer were those proposed by Foka[2]. In addition, the freeboard section was considered since high entrainment is specific of this regime. Gas backmixing was taken into account by considering a plug flow with axial dispersion for the interstitial gas flow. The bubble phase being dilute, was modeled by a plug flow. A plug flow was also considered for the freeboard gas. The solid phase was supposed to be completely mixed. The bubbling regime simulation gave good agreement with experiment in the case of the pilot plant experiment, while the turbulent model better simulated the industrial scale experiment. es_ES
dc.format.extent 8 es_ES
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation.ispartof IDS 2018. 21st International Drying Symposium Proceedings es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Drying es_ES
dc.subject Dehydration es_ES
dc.subject Dewatering es_ES
dc.subject Emerging technologies es_ES
dc.subject Products quality es_ES
dc.subject Process control es_ES
dc.subject Environmental es_ES
dc.subject Evaporation es_ES
dc.subject Sublimation es_ES
dc.subject Diffusion es_ES
dc.subject Energy es_ES
dc.subject Intensification es_ES
dc.subject Batch fluidized bed es_ES
dc.subject Pharmaceutical powder es_ES
dc.subject Modeling es_ES
dc.subject Bubbling es_ES
dc.subject Turbulent es_ES
dc.title Comparison between bubbling and turbulent regime for the simulation of batch pharmaceutical powders fluidized bed drying es_ES
dc.type Capítulo de libro es_ES
dc.type Comunicación en congreso es_ES
dc.identifier.doi 10.4995/IDS2018.2018.7703
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Zammouri, A.; Boudhrioua Mihoubi, N.; Kechaou, N. (2018). Comparison between bubbling and turbulent regime for the simulation of batch pharmaceutical powders fluidized bed drying. En IDS 2018. 21st International Drying Symposium Proceedings. Editorial Universitat Politècnica de València. 457-464. https://doi.org/10.4995/IDS2018.2018.7703 es_ES
dc.description.accrualMethod OCS es_ES
dc.relation.conferencename 21st International Drying Symposium es_ES
dc.relation.conferencedate Septiembre 11-14, 2018 es_ES
dc.relation.conferenceplace Valencia, Spain es_ES
dc.relation.publisherversion http://ocs.editorial.upv.es/index.php/IDS/ids2018/paper/view/7703 es_ES
dc.description.upvformatpinicio 457 es_ES
dc.description.upvformatpfin 464 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.relation.pasarela 7703 es_ES


This item appears in the following Collection(s)

Show simple item record