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dc.contributor.authorBehjani, M.A.*
dc.contributor.authorRahmanian, Nejat*
dc.contributor.authorGhani N.F.b.A.*
dc.contributor.authorHassanpour, A.*
dc.date.accessioned2017-03-14T11:53:35Z
dc.date.available2017-03-14T11:53:35Z
dc.date.issued2017
dc.identifier.citationBehjani MA, Rahmanian N, Ghani NFbA et al (2017) An investigation on process of seeded granulation in a continuous drum granulator using DEM. Advanced Powder Technology. 28(10): 2456-2464.en_US
dc.identifier.urihttp://hdl.handle.net/10454/11613
dc.descriptionYesen_US
dc.description.abstractNumerical simulation of wet granulation in a continuous granulator is carried out using Discrete Element Method (DEM) to discover the possibility of formation of seeded granules in a continuous process with the aim of reducing number of experimental trials and means of process control. Simple and scooped drum granulators are utilized to attain homogenous seeded granules in which the effects of drum rotational speed, particles surface energy, and particles size ratio are investigated. To reduce the simulation time a scale-up scheme is designed in which a dimensionless number (Cohesion number) is defined based on the work of cohesion and gravitational potential energy of the particles. Also a mathematical/numerical method along with a MATLAB code is developed by which the percentage of surface coverage of each granule is predicted precisely. The results show that use of continuous granulator is promising provided that a high level of shear is considered in the granulator design, e.g. it is observed that using baffles inside the drum granulators is essential for producing seeded granules. It is observed, moreover, that the optimum surface energy for scooped granulator with rotational speed of 50 rpm is 3 J/m2 which is close to the number predicted by Cohesion number. It is also shown that increasing the seed/fine size ratio enhances the seeded granulation both quantitatively (60% increase in seeds surface coverage) and qualitatively (more homogeneous granules).en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://dx.doi.org/10.1016/j.apt.2017.02.011en_US
dc.rights© 2017 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectSeeded granules; Drum granulator; Discrete element method (DEM); Surface energy; Coordination number; Cohesion number; Scale up methoden_US
dc.titleAn investigation on process of seeded granulation in a continuous drum granulator using DEMen_US
dc.status.refereedyesen_US
dc.date.Accepted2017-02-09
dc.date.application2017-02-22
dc.typeArticleen_US
dc.type.versionAccepted Manuscripten_US
refterms.dateFOA2018-07-25T16:06:07Z


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