Drying Characteristics of Barley Grain Dried in a Spouted-Bed and Combined IR-Convection Dryers

Markowski, Marek; Sobieski, Wojciech; Konopka, Iwona; Tańska, Małgorzata; Białobrzewski, Ireneusz

doi:10.1080/07373930701590715

Cited by 40 publications

(37 citation statements)

References 23 publications

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“…The drying curves shown in Figs. 5 and 6 are similar to those described by Markowski et al (2007) for barley dried in a spouted-bed drier, but received for another barley variety, another height of the static bed and other airflow parameters than those applied in the present study. The curves are also similar to those obtained by Kmieć and Szafran (2000) for microspherical particles produced from the dust emitted by an electric power station fired by coal and dried in a spouted-bed drier.…”

Section: Drying Behaviormentioning

confidence: 65%

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Kinetics of spouted-bed drying of barley: Diffusivities for sphere and ellipsoid

Markowski

Białobrzewski

Modrzewska

2010

Journal of Food Engineering

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Section: Drying Behaviormentioning

confidence: 65%

“…Mandas and Hatabe (2002) developed a simulation model describing the kinetics of convection drying of barley in a deep-bed. Markowski et al (2007) studied the influence of the drying technique on the drying behaviour of malting barley. The quality of dried malting barley was recently studied by Konopka et al (2008).…”

Section: Introductionmentioning

confidence: 99%

Kinetics of spouted-bed drying of barley: Diffusivities for sphere and ellipsoid

Markowski

Białobrzewski

Modrzewska

2010

Journal of Food Engineering

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“…Earlier studies conducted using the here-described device are presented, among others, in the literature. [20,[36][37][38][39] For the development of the computer model the axially symmetrical geometry was assumed consistent with the dimensions given in the figure. The specification of computer model parameters for two cases of experimental studies conducted for barley cultivars Mauritia and Prestige are presented in Table 1.…”

Section: The Object Of Numerical Analysismentioning

confidence: 99%

Momentum Exchange in Solid–Fluid System Modeling with the Eulerian Multiphase Model

Sobieski

2009

Drying Technology

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This article presents the results of spouted bed grain dryer simulation tests where barley grain was the working medium and analyzes the influence of the model describing momentum exchange between components of the fluid-solid type mix on the dynamics of the fluidized bed and height of the fountain characteristic for that type of devices. The Eulerian multiphase model (EMM), in which the model describing the interphase momentum exchange was changed, while other conditions were constant, was the base of the simulation. For analysis 12 such models were used: Ergun, Wen-Yu, Nieuwland et al., Ishi-Mishima, Gibilaro et al., Syamlal-O'Brien, Gidaspow, Arastoopour et al., Ma-Ahmadi, Louge et al., Di Felice, and Andrews-O'Rourke.The computations were made using the FLUENT software package and the so-called user-defined functions. The individual sections of the article contain the mathematical description of the resistance models mentioned; verification of correctness of implementation of those models (for the models for which it was possible); presentation of the object of study (simulation tests were based on earlier made experimental tests); results of simulations for 12 resistance models and two granular viscosity models (according to Syamlal-O'Brien and Gidaspow); and considerations on selection of the resistance model in the context of a spouted bed grain dryer. Additionally, the article presents the results of simulations based on the so-called sphericity coefficient. The study aimed at verifying the possibility of applying various interaction models in modeling the dynamics of a spouted bed grain dryer.

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“…17 18 Hashimoto and Kameoka 19 reported the effect of IRD on the drying characteristics of wet porous material. Markowski et al 20 studied the drying characteristics and quality of barley grain under different infrared radiation intensities. WitrowaRajchert and Rząca 21 studied the influence of the internal structure and physical properties of dried apples under different drying methods, including convection, microwave-convection, and infrared-convection methods.…”

Section: Introductionmentioning

confidence: 99%

Temperature and Quality Characteristics of Infrared Radiation–Dried Kelp at Different Peak Wavelengths

Zhang

Bhandari

2014

Drying Technology

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Drying experiments on kelp (seaweed species) were conducted using air drying (AD) and infrared radiation drying (IRD) at different emission peak wavelengths of 2.4, 3.0, 5.0, and 6 0 m. Temperature characteristics of the dried kelp were determined in terms of temperature distribution and surfaceinterior temperature variation. Rehydrated ratio, color, and texture before and after rehydration were measured to evaluate the quality of dried kelp products. Dielectric properties were also studied to observe the characteristics of rehydrated dried products. The results indicated that the total drying time required for IRD products was approximately 120 min, reduced by 56% compared to AD (275 min). Infrared-dried products at 2.4 m wavelength and AD products were found to be more uniform from the thermal images and had higher rehydration ratios compared to others. IR-2.4 rehydrated products were the closest to blanched samples in hardness, springiness, cohesiveness, and chewiness. This research work concluded that infrared radiation drying has potential to be used for drying of kelp.

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Drying Characteristics of Barley Grain Dried in a Spouted-Bed and Combined IR-Convection Dryers

Cited by 40 publications

References 23 publications

Kinetics of spouted-bed drying of barley: Diffusivities for sphere and ellipsoid

Kinetics of spouted-bed drying of barley: Diffusivities for sphere and ellipsoid

Momentum Exchange in Solid–Fluid System Modeling with the Eulerian Multiphase Model

Temperature and Quality Characteristics of Infrared Radiation–Dried Kelp at Different Peak Wavelengths

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