Modelling of soybean seed drying in concurrent sliding bed dryers: Effect of the number of stages on the seed quality and drying performance

Pfeifer, Antun; Murata, V. V.; Barrozo, M. A. S.

doi:10.1016/j.biosystemseng.2010.09.008

Cited by 21 publications

(15 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Low seed moisture, <10%, also turns seed coat more prone to cracking, while high seed moisture may result in bruising that reduces germination by accelerated deterioration. [17] Depending on the drying conditions, the seed coat can becomes more "plastic" than "elastic". The protein-packed cotyledons have high affinity for moisture uptake and will expand and contract dramatically, putting pressure on the seed coat, which stretches and weakens.…”

Section: Introductionmentioning

confidence: 99%

Soybean (Glycine maxL. Merrill) Seed Drying in Fixed Bed: Process Heterogeneity and Seed Quality

2015

View full text Add to dashboard Cite

Soybean (Glycine max (L.) Merr.) is the most important oilseed in the world market.Seed quality has direct influences on the success of the crop and contributes significantly to productivity levels. The quality of soybean seeds can be influenced by several factors during drying. This study evaluated the drying of soybean seeds in a fixed bed dryer, considering the heterogeneity of the process and the effect of process variables on seed quality. Seed and air temperatures, seed moisture and seed quality were measured through the bed. Empirical equations were obtained relating seed quality indicators, at several bed axial positions, as a function of process variables.

show abstract

Section: Introductionmentioning

confidence: 99%

Soybean (Glycine maxL. Merrill) Seed Drying in Fixed Bed: Process Heterogeneity and Seed Quality

2015

View full text Add to dashboard Cite

show abstract

“…Sinnecker et al 2005Li et al 2002;Freire et al 2004;Overhults et al 1973), fluidized bed drying (Soponronnarit et al 2001;Osella et al 1997), concurrent sliding moving bed drying (Pfeifer et al 2010;Felipe and Barrozo 2003;Barrozo et al 2006), spouted bed drying (Duarte et al 2004;Wiriyaumpaiwong et al 2003), rotary dryer (Luz et al 2010), near-infrared radiation-fluidized-bed drying (Dondee et al 2011), microwave-hot air drying (Gowen et al 2008). These studies focused mainly the effects of air temperature, relative humidity and initial moisture content on quality of soybean such as urease activity, cracking, breakage, fatty acids, protein and germination.…”

Section: Introductionmentioning

confidence: 99%

Effects of microwave - fluidized bed drying on quality, energy consumption and drying kinetics of soybean kernels

2014

View full text Add to dashboard Cite

Moisture content of soybean kernel at harvest time is too high for storage, and needs to be reduced. In this research, drying characteristics, quality and energy requirement for microwave-fluidized bed drying of soybean kernels were studied. The results showed that air temperature (80-140°C), velocity (1.8-4.5 m/s) and microwave power (200-500 W) significantly influenced drying time, moisture diffusivity, rehydration capacity, cracking, and specific energy consumption (P≤0.05). Among the applied models, Page's model has the best performance to estimate the microwavefluidized bed drying behavior of the soybean kernels. Moisture diffusivity values increased (6.25×10 −10 to 42.14×10 -10 m 2 /s) as the air velocity decreased and air temperature and microwave power increased. Activation energy was foundto be between 3.33 and 17.70 kJ/mol. Minimum cracking percentage of soybean kernels (12.96 %) was obtained at 80°C, 1.8 m/s and 200 W treatments. The increase in microwave power and decrease in air velocity level decreased the rehydration capacity. Specific energy consumption varied from 50.94 to 338.76 MJ/kg water and the lowest specific energy consumption were obtained at 80°C, 4.5 m/s and 500 W.

show abstract

“…Also, raw soybean cannot be consumed as human food or animal feed because of the presence of antinutritional substances, some of which may harm the consumer. In the treatment of raw soybeans after harvest, several methods are available such as cooking, roasting and drying (Gowen et al, 2008;Dondee et al, 2011;Pfeifer et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Quality, Performance Analysis, Mass Transfer Parameters and Modeling of Drying Kinetics of Soybean

Darvishi

2017

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

-Different aspects of soybean drying such as energy and exergy analyses, quality, mass transfer parameters, and modeling of drying kinetics were investigated in a microwave dryer. Results showed that energy and exergy efficiency increased with increasing microwave power, while values of energy efficiency (33.70 to 66.0%) were higher than exergy efficiency ( m/s, respectively. The activation energy was found to be 4.98 W/g for a diffusion model and 5.33 W/g for a mass transfer model. Among the models, the Page model was found to best describe the drying behavior of soybean.

show abstract

Modelling of soybean seed drying in concurrent sliding bed dryers: Effect of the number of stages on the seed quality and drying performance

Cited by 21 publications

References 22 publications

Soybean (Glycine maxL. Merrill) Seed Drying in Fixed Bed: Process Heterogeneity and Seed Quality

Soybean (Glycine maxL. Merrill) Seed Drying in Fixed Bed: Process Heterogeneity and Seed Quality

Effects of microwave - fluidized bed drying on quality, energy consumption and drying kinetics of soybean kernels

Quality, Performance Analysis, Mass Transfer Parameters and Modeling of Drying Kinetics of Soybean

Contact Info

Product

Resources

About