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Thermodynamic and Hydrodynamic Analysis of Paddy Drying in a Bubbling Fluidized Bed Dryer


Affiliations
1 Department of Mechanical Engineering, Bhubaneswar Engineering College, Bhubaneswar, Odisha, India
     

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Experimental investigation of paddy drying using vertical and inclined fluidized bed was carried out, using various inventories, inclinations, and air (passed through the blower, used for drying) temperatures. For the vertical bed, the drying times were found to be 80 min and 70 min for air temperatures 60°C and 65°C respectively, which is same for the bed with an inclination of 45°, given the same conditions. The bed with an inclination of 30° has the shortest drying time, i.e., 40 min for 65°C and 45 min for 60°C, thereby reducing the moisture content from 62% to 8.5%. 15° and 30° inclined beds consume the least energy due to better heat transfer and hydrodynamics, and less drying time.

Keywords

Drying Time, Fluidization, Hydrodynamics, Moisture Content, Paddy.
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  • P. P. Thant, P. S. Robi, and P. Mahanta, “Experimental investigation of cereal crop drying in an inclined bubbling fluidized bed,” 5th International & 26th All India Manufacturing Technology, Design and Research Conference (AIMTDR 2014), IIT Guwahati, Assam, India, 12-14 Dec. 2014,

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Abstract Views: 355

PDF Views: 7




  • Thermodynamic and Hydrodynamic Analysis of Paddy Drying in a Bubbling Fluidized Bed Dryer

Abstract Views: 355  |  PDF Views: 7

Authors

Sasmita Mishra
Department of Mechanical Engineering, Bhubaneswar Engineering College, Bhubaneswar, Odisha, India
Smrutirekha Mishra
Department of Mechanical Engineering, Bhubaneswar Engineering College, Bhubaneswar, Odisha, India
B. P. Mishra
Department of Mechanical Engineering, Bhubaneswar Engineering College, Bhubaneswar, Odisha, India

Abstract


Experimental investigation of paddy drying using vertical and inclined fluidized bed was carried out, using various inventories, inclinations, and air (passed through the blower, used for drying) temperatures. For the vertical bed, the drying times were found to be 80 min and 70 min for air temperatures 60°C and 65°C respectively, which is same for the bed with an inclination of 45°, given the same conditions. The bed with an inclination of 30° has the shortest drying time, i.e., 40 min for 65°C and 45 min for 60°C, thereby reducing the moisture content from 62% to 8.5%. 15° and 30° inclined beds consume the least energy due to better heat transfer and hydrodynamics, and less drying time.

Keywords


Drying Time, Fluidization, Hydrodynamics, Moisture Content, Paddy.

References