Investigation of batch fluidized-bed drying by mathematical modeling, CFD simulation and ECT measurement

AIChE Journal ◽  
2008 ◽  
Vol 54 (2) ◽  
pp. 427-444 ◽  
Author(s):  
H. G. Wang ◽  
W. Q. Yang ◽  
P. Senior ◽  
R. S. Raghavan ◽  
S. R. Duncan
Keyword(s):  
Mathematical Modeling ◽  
Fluidized Bed ◽  
Cfd Simulation ◽  
Fluidized Bed Drying

scholarly journals Fluidized Bed Drying of Pumpkin (Cucurbita sp.) Seeds

Foods ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 147 ◽  
Author(s):  
Saheeda Mujaffar ◽  
Sheena Ramsumair
Keyword(s):  
Fluidized Bed ◽  
Crude Protein ◽  
Agricultural Waste ◽  
Fluidized Bed Dryer ◽  
Rate Period ◽  
Drying Behavior ◽  
Pumpkin Seeds ◽  
Fluidized Bed Drying ◽  
Fresh Cut ◽  
Pumpkin Powder

Pumpkin seeds are a major agricultural waste from the fresh-cut produce industry. The objective of this study was to investigate the drying behavior of untreated, whole pumpkin seeds in a fluidized bed dryer at 50–80 °C (2.87 m/s), with a view to producing a high-quality pumpkin powder from dried seeds. Seeds were dried at 50–80 °C to an average equilibrium moisture value of 0.035 to 0.006 g H2O/g DM (3.4 to 0.6% wb). Drying occurred in the falling rate period only and drying rate constants ranged from 0.0226 to 0.0900 1/min with corresponding diffusivity values for the first falling-rate period ranging from 4.68 to 18.63 × 10−10 m2/s. The activation energy (Ea)—for the first falling rate period was determined to be 43.9 kJ/mol. Of the nineteen thin layer models tested, the Alibas model could be successfully used as a general model to predict the Moisture Ratio (MR) data for all temperatures investigated. After drying, seeds were blended to produce powders, which were found to be high in fat, crude protein and fiber.

Numerical Simulation on Superheated Steam Fluidized Bed Drying: I. Model Construction

2011 ◽  
Vol 29 (11) ◽  
pp. 1325-1331 ◽  
Author(s):  
Deyong Yang ◽  
Zhenhua Wang ◽  
Xiaoli Huang ◽  
Zhifeng Xiao ◽  
Xiangdong Liu
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Superheated Steam ◽  
Model Construction ◽  
Fluidized Bed Drying

Designing and Optimizing a Neural Network for the Modeling of a Fluidized-Bed Drying Process

2002 ◽  
Vol 41 (9) ◽  
pp. 2262-2269 ◽  
Author(s):  
José A. Castellanos ◽  
María C. Palancar ◽  
José M. Aragón
Keyword(s):  
Neural Network ◽  
Fluidized Bed ◽  
Drying Process ◽  
Fluidized Bed Drying
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