Performance Assessment of Fluidized Bed Drying System for Enhancing Drying Efficiency and Quality of Parboiled Rice
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Key Points
This research aims to evaluate different drying methods for parboiled rice to improve efficiency and quality.
Evaluated drying kinetics and energy consumption for four drying methods: natural air drying, two-pass hot air oven drying, two-pass fluidized bed drying, and oven-fluidized bed combination.
Monitored moisture content during drying until reaching 12.5% (wet basis).
Assessed three rice cultivars (CLL 18, RT 7521, Titan) for drying performance and quality metrics.
Fluidized bed drying (FBD) achieved the fastest drying of Titan, reducing moisture content from 38.24% to 13.79% in 60 minutes.
FBD had the highest effective moisture diffusivity and consumed 1.6599 kWh, less than other methods.
Natural air drying resulted in higher quality metrics for high head rice yield (Titan: 65.33%) and whiteness index (RT 7521: 63.99), though it took much longer (7-10 days) to dry.
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Implication
Performance assessment of drying methods enhances parboiled rice quality and energy efficiency.