scholarly journals Experimental and computational study on the effect of ash deposition on fluid dynamic behavior in a bubbling fluidized bed gasifier

2020 ◽  
Author(s):  
Rajan K. Thapa ◽  
Saroj Thapa ◽  
Rajan Jaiswal ◽  
Nora C. I. S. Furuvik ◽  
Britt M. E. Moldestad
Keyword(s):  
Fluidized Bed ◽  
Dynamic Behavior ◽  
Computational Study ◽  
Fluid Dynamic ◽  
Ash Deposition ◽  
Bubbling Fluidized Bed ◽  
Fluidized Bed Gasifier

scholarly journals Fluid-dynamic behavior of flaxseed fluidized and spouted bed

2017 ◽  
Vol 47 (10) ◽  
Author(s):  
Elza Brandão Santana ◽  
Maria da Conceição da Costa Valente ◽  
Lorena Gomes Corumbá ◽  
Elisangela Lima Andrade ◽  
Cristiane Maria Leal Costa ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Dynamic Behavior ◽  
Seed Treatment ◽  
Fluid Dynamic ◽  
Seed Processing ◽  
Linum Usitatissimum L ◽  
Air Temperatures ◽  
Physiological Properties ◽  
Physiological Quality

ABSTRACT: Processing of particles in a moving bed, such as a fluidized bed or a spouting bed, is commonly used in the operations of drying, coating, and granulation of particulate systems. This process has applications in the chemical, pharmaceutical and, presently, agronomical industries, especially for seed treatment/coating. This research aimed to analyze the fluid-dynamic behavior of fluidized and spouting beds with different air temperatures and loads of flaxseeds (Linum usitatissimum L.), with estimates of the fluid-dynamic parameters correlated to each process. The parameters were compared with the values obtained from classical correlations in the literature, with indications of associated percentages of deviation. Influence of fluid dynamics on the physiological quality of seeds was assessed by germination tests and the germination speed index. An analysis of the results indicated that seed processing was adequate for processing in dynamically active beds; however, temperatures above 50ºC in both beds caused significant reductions in the physiological quality of the seeds. Processing in a fluidized bed presented a smaller reduction of the physiological properties of the flaxseed.

Fluid-dynamic assessment of sugarcane bagasse to use as feedstock in bubbling fluidized bed gasifiers

2014 ◽  
Vol 73 (1) ◽  
pp. 238-244 ◽  
Author(s):  
Nestor Proenza Pérez ◽  
Einara Blanco Machin ◽  
Daniel Travieso Pedroso ◽  
Julio Santana Antunes ◽  
Jose Luz Silveira
Keyword(s):  
Fluidized Bed ◽  
Sugarcane Bagasse ◽  
Fluid Dynamic ◽  
Dynamic Assessment ◽  
Bubbling Fluidized Bed

Fluid dynamic simulation of O3 decomposition in a bubbling fluidized bed

AIChE Journal ◽  
2003 ◽  
Vol 49 (11) ◽  
pp. 2793-2801 ◽  
Author(s):  
Madhava Syamlal ◽  
Thomas J. O'Brien
Keyword(s):  
Fluidized Bed ◽  
Dynamic Simulation ◽  
Fluid Dynamic ◽  
Bubbling Fluidized Bed

CFD Simulation of a Bubbling Fluidized Bed Gasifier Using a Bubble-Based Drag Model

2014 ◽  
Vol 28 (10) ◽  
pp. 6351-6360 ◽  
Author(s):  
Juhui Chen ◽  
Guangbin Yu ◽  
Bing Dai ◽  
Di Liu ◽  
Lei Zhao
Keyword(s):  
Fluidized Bed ◽  
Cfd Simulation ◽  
Drag Model ◽  
Bubbling Fluidized Bed ◽  
Fluidized Bed Gasifier
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