Experimental study of paddy drying in a vortex chamber |
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| Authors: | Jnyana Ranjan Pati Subhajit Dutta Philippe Eliaers Pinakeswar Mahanta Pradip Kumar Chatterjee |
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| Affiliation: | 1. Materials &2. Process Engineering (IMAP), Université Catholique de Louvain (UCL), Louvain-la-Neuve, Belgium;3. Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Assam, Guwahati, India;4. Department of Thermal Engineering, Central Mechanical Engineering Research Institute, Durgapur, India;5. Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Assam, Guwahati, India;6. Department of Thermal Engineering, Central Mechanical Engineering Research Institute, Durgapur, India |
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| Abstract: | The intensification of interfacial mass, heat, and momentum transfer makes vortex chambers potentially interesting for the efficient drying of paddy, allowing shorter drying times and/or more compact equipment. The presence of a shell introduces particular challenges. Intraparticle diffusion limitations are strong and may reduce the advantage from intensified interfacial mass and heat transfer and the efficiency of air usage. Furthermore, high shear and normal stresses in the fast rotating particle bed may cause damage to the paddy shell, posing problems for transport and storage. With these specific aspects in mind, the use of vortex chambers for paddy drying is experimentally evaluated. |
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| Keywords: | Fluidized bed drying food drying heat and mass transfer process intensification |
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