Please use this identifier to cite or link to this item: https://doi.org/10.1080/03602550600685267
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dc.titleA parametric study of spray drying of a solution in a pulsating high-temperature turbulent flow
dc.contributor.authorWu, Z.
dc.contributor.authorMujumdar, A.S.
dc.date.accessioned2014-06-16T09:33:45Z
dc.date.available2014-06-16T09:33:45Z
dc.date.issued2006
dc.identifier.citationWu, Z., Mujumdar, A.S. (2006). A parametric study of spray drying of a solution in a pulsating high-temperature turbulent flow. Drying Technology 24 (6) : 751-761. ScholarBank@NUS Repository. https://doi.org/10.1080/03602550600685267
dc.identifier.issn07373937
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/54689
dc.description.abstractSpray drying of a concentrated common salt (NaCl) solution carried out in the intense oscillating high-temperature turbulent flow field generated in the tailpipe of a pulse combustor was simulated. Simulation of such transport process problems is especially crucial since the environmental conditions are too hostile for detailed and reliable measurements. The momentum, heat, and mass transfer processes between the gas and droplet phases during drying were simulated using a computational fluid dynamic solver. The simulated profiles of flow field, temperature, and humidity of gaseous phase, and particle trajectories in a drying chamber are presented and discussed. The effects of gas temperature, pulse frequency and amplitude, and gas mass flow rate on the transient flow patterns, droplet trajectories, and overall dryer performance were investigated. Different turbulence models were also tested. Simulation results show that the flow field and droplet drying conditions vary widely during a single pulsating period. Very short drying times and very high drying rate characterize pulse combustion spray drying. Thus, pulse combustion drying can be applied to drying of fine droplets of highly heat-sensitive materials although the jet temperature initially is extremely high. Copyright © 2006 Taylor & Francis Group, LLC.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1080/03602550600685267
dc.sourceScopus
dc.subjectCFD
dc.subjectHeat and mass transfer
dc.subjectNumerical modeling
dc.subjectParticle trajectories
dc.subjectPulse combustion
dc.subjectSpray drying
dc.subjectTurbulence models
dc.subjectTwo-phase flow
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1080/03602550600685267
dc.description.sourcetitleDrying Technology
dc.description.volume24
dc.description.issue6
dc.description.page751-761
dc.description.codenDRTED
dc.identifier.isiut000237718000010
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