Abstract
Raw cashew nuts were dried in a bubbling fluidized bed dryer at ambient temperature (an average of 32 °C) with bed inclinations of 0°, 15° and 30° using perforated (18.85%) and semi-circular (50%) opening distributor plates. The superficial velocity ranged from 1.4 m/s to 3.2 m/s for batch sizes of 0.5, 1, 2 and 2 kg raw cashew nuts + 2 kg sand. Raw cashew nuts alone and cashew nuts mixed with sand were taken for finding different hydrodynamic behaviour and energy consumptions. Samples were collected at 0, 30, 60 and 90 min intervals for moisture content removal measurement with air velocity of 2.5 m/s. When fluidized alone, the highest fluidization height of raw cashew nuts was 0.31 m for 2 kg inventory but when mixed with sand it was found 0.48 m at 15° bed inclination with air velocity as 2.5 m/s in 50% opening distributor plate. Average moisture removal was found to be 14.097 and 16.422% in semi-circular and perforated distributor plates respectively.
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Das, S., Mahanta, P., Sinha, A., Mishra, L. (2022). Performance Study of an Inclined Bubbling Fluidized Bed Dryer During Cashew Nut Drying. In: Palanisamy, M., Natarajan, S.K., Jayaraj, S., Sivalingam, M. (eds) Innovations in Energy, Power and Thermal Engineering . Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-4489-4_8
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