Modeling and Flowsheet Simulation of Vibrated Fluidized Bed Dryers

Lehmann, Soeren E.; Buchholz, Moritz; Jongsma, Alfred; Innings, Fredrik; Heinrich, Stefan

doi:10.3390/pr9010052

Cited by 6 publications

(4 citation statements)

References 33 publications

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“…Several investigations [12,[24][25][26][27][28][29] discussed the advancement and utilization of computational tools. In one study [30], a model called Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) was employed to explore the dynamics of fluidized beds and heat transfer dynamics.…”

Section: Advanced Modeling and Simulation Of Particle Fluidizationmentioning

confidence: 99%

Recent Advances in Particle Fluidization

Balag,

Franco,

Miral

et al. 2023

Asec 2023

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Section: Advanced Modeling and Simulation Of Particle Fluidizationmentioning

confidence: 99%

Recent Advances in Particle Fluidization

Balag,

Franco,

Miral

et al. 2023

Asec 2023

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“…They apply such techniques for raw materials that do not contain nutrients that need to be preserved. Another way to increase the amount of solids in the feedstock is the operation of preliminary evaporation of the liquid, followed by drying the condensed raw materials [11]. This technique entails additional energy costs for the evaporation process, which reduces its economic attractiveness.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Improving the efficiency of drying Eisenia Fetida by using a technique with induced heat and mass transfer

Погожих¹,

Пак²,

Pak

et al. 2022

EEJET

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This paper substantiates the need to rationalize the drying process of such a vermitechnology object as Eisenia Fetida worms to utilize them as feed for industrial animal husbandry and poultry farming. This will contribute to improving the energy efficiency of vermitechnology application in the production of agricultural products. A technique of drying with the effect of induced heat and mass transfer has been adapted for raw materials with a low amount of dry substances, which is a homogenate of worms. Two adaptation techniques are proposed: drying the homogenate in a heat and mass exchange module with artificially created obturators; drying a mixture of homogenate with grain bran with the spontaneous formation of obturators from raw materials. Studies of various homogenate drying techniques have established that the longest duration of dehydration is achieved by convective drying technique. This is 1.2 times larger compared to the conductive technique and 2 and 3 times larger than drying with the effect of induced heat and mass transfer depending on the technique of obturator formation. It has been established that the final moisture content of dried products is the smallest for techniques involving the effect of induced heat and mass transfer. It is in 2...3 times less compared to convective and conductive techniques. Drying with the effect of induced heat and mass transfer of mixtures with the following mass ratio of the homogenate to grain bran was investigated: 1:1; 2:1; 3:1. It was established that for a sample with a ratio of 3:1, the nature of the kinetics of drying is different from the typical kinetics for the effect of induced heat and mass transfer. The consequence is an increase in the duration of dehydration compared to samples of 1:1 and 2:1 by 1.3 times. The results can be used in agriculture, namely, industrial animal husbandry, poultry farming, and vermitechnology

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“…The development and applications of computational tools were discussed in various papers [6][7][8][9][10][11][12]. Fluidized bed hydrodynamics and heat transfer were computationally investigated in [6] by a Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) model.…”

mentioning

confidence: 99%

“…Macroscopic modeling was used in [12] to predict the performances of vibrated fluidized bed dryers under a broad set of different conditions, demonstrating the significant progress of flowsheeting simulators in representing complex fluidized bed process units. In particular, a continuous dryer model was implemented and tested within the opensource framework Dyssol, accounting for the fluidization hydrodynamics of particles of all Geldart's groups, including the effect of vibration.…”

mentioning

confidence: 99%