Performance analysis of deep bed drying of canola seeds using numerical technique |
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| Affiliation: | 1. Department of Ceramic Engineering, Indian Institute of Technology (B.H.U.), Varanasi, India;2. School of Mechatronics, Symbiosis Skills & Professional University, Pune, 412101, India;3. Department of Mechanical Engineering, Indian Institute of Technology (B.H.U.), Varanasi, India;1. AICRP on PHET, College of Agricultural Engineering & Technology, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, 751003, India;2. Post Harvest Process and Food Engineering, College of Agriculture, Jawaharlal Nehru Agricultural University, Tikamgarh, Madhya Pradesh, 472001, India;1. Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Institute of Entomology, Guizhou University, Guiyang, 550025, PR China;2. Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, College of Biology and Environmental Engineering, Guiyang University, Guiyang, 550005, PR China;3. China Tobacco Guizhou Industrial Co., LTD, Guiyang, 550025, PR China |
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| Abstract: | Canola grain containing 18–20% moisture during harvesting is not suitable for safe storage. The storage conditions for these grains need to be optimized through drying technique to prevent both fungal attack and suppression in germination. Hence, the present investigation has been carried out to analyze coupled heat and mass transfer phenomena during steady state counter flow deep bed drying. To carry out this study, a non-equilibrium drying model has been developed. Governing equations include moisture mass balance, enthalpy balance, heat transfer rate, mass transfer rate for an element along bed height. And diffusion equation of moisture inside a single kernel has also been solved simultaneously through an implicit scheme using TDMA (Tri-Diagonal Matrix Algorithm). An iterative approach has been used to solve the governing equations for a selected geometry of the dryer. The rating analysis can be used for arriving at improved quality and higher efficiency at reasonable level of throughput. |
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| Keywords: | Deep bed drying Heat and mass transfer Sequential iterative numerical technique Canola |
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