A simplified approach to the drying of solids in a batch fluidised bed

Srinivasakannan, C.; Balasubramanian, N.

doi:10.1590/s0104-66322002000300004

Cited by 12 publications

(8 citation statements)

References 8 publications

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“…Considering the fluidization behavior and characteristics of paddy, the plug flow is the most suitable type of fluidized bed dryer for paddy. However, well-mixed fluidized bed dryers have been applied for paddy drying in some researches (Assari et al, 2007;Lai and Chen, 1986;Madhiyanon et al, 2006;Palancz, 1983;Srinivasakannan and Balasubramanian, 2002;Zare and Chen, 2009). …”

Section: Introductionmentioning

confidence: 99%

“…The other approach is based on the hydrodynamic considerations. This method is categorized into multiphase modeling, when two (Assari et al, 2007;Lai and Chen, 1986;Srinivasakannan and Balasubramanian, 2002) or three (Palancz, 1983) phases are presented. The latter type of modeling is one of the most complex procedures to predict the behavior of a fluidized bed dryer.…”

Section: Introductionmentioning

confidence: 99%

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Sequential modeling of fluidized bed paddy dryer

Bizmark

Mostoufi

Sotudeh‐Gharebagh

et al. 2010

Journal of Food Engineering

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sequential modeling of fluidized bed paddy dryer

Bizmark

Mostoufi

Sotudeh‐Gharebagh

et al. 2010

Journal of Food Engineering

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“…The minimum fluidization velocity was determined experimentally and its value coincides with the value from the equation (Srinivasakannan and Balasubramanian, 2002):…”

Section: Experimental Methodsmentioning

confidence: 84%

Experimental investigation of thermal conductivity coefficient and heat exchange between fluidized bed and inclined exchange surface

Stojanović

Janevski

Stojiljković

2009

Braz. J. Chem. Eng.

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-The paper presents experimental research of thermal conductivity coefficients of the siliceous sand bed fluidized by air and an experimental investigation of the particle size influence on the heat transfer coefficient between fluidized bed and inclined exchange surfaces. The measurements were performed for the specific fluidization velocity and sand particle diameters d p =0.3, 0.5, 0.9 mm. The industrial use of fluidized beds has been increasing rapidly in the past 20 years owing to their useful characteristics. One of the outstanding characteristics of a fluidized bed is that it tends to maintain a uniform temperature even with nonuniform heat release. On the basis of experimental research, the influence of the process's operational parameters on the obtained values of the bed's thermal conductivity has been analyzed. The results show direct dependence of thermal conductivity on the intensity of mixing, the degree of fluidization, and the size of particles. In the axial direction, the coefficients that have been treated have values a whole order higher than in the radial direction. Comparison of experimental research results with experimental results of other authors shows good agreement and the same tendency of thermal conductivity change. It is well known in the literature that the value of the heat transfer coefficient is the highest in the horizontal and the smallest in the vertical position of the heat exchange surface. Variation of heat transfer, depending on inclination angle is not examined in detail. The difference between the values of the relative heat transfer coefficient between vertical and horizontal heater position for all particle sizes reduces by approximately 15% with the increase of fluidization rate.

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“…It was reported that seeding in the crystallization could change the crystal growth habits and crystal size distribution. [5,6,7,8] C. Srinivasakannan, R.Vasanthakumar, K. Iyappan and other authors demonstrate the seeding is necessary to batch crystallization of oxalic acid. This time we focused on the ratio of seeding to maintain supersaturation with the so-called metastable zone to control crystal size distribution.…”

Section: Seeding Before Precipitationmentioning

confidence: 99%

Process optimization in batch crystallization of sodium fluosilicate

Rui-xiang¹

2005

Cryst. Res. Technol.

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This paper deals with effect of process optimization during the precipitation of sodium fluosilicate using sodium chloride, and fluosilicic acid, which is a byproduct during the production of phosphoric acid. Series of process changes have been carried out as per descriptions written in the paper. Quantity of fine sodium fluosilicate crystals added before the reaction has been recorded accordingly. The size of the crystals was observed before and after the seeding. Better filtration rate of slurry was obtained in the centrifugal and the moisture of the intermediate product was decreased.

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A simplified approach to the drying of solids in a batch fluidised bed

Cited by 12 publications

References 8 publications

Sequential modeling of fluidized bed paddy dryer

Sequential modeling of fluidized bed paddy dryer

Experimental investigation of thermal conductivity coefficient and heat exchange between fluidized bed and inclined exchange surface

Process optimization in batch crystallization of sodium fluosilicate

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