A Dynamic Two-Dimensional Model for Deep-Bed Drying of Mate Leaves (<i>Ilex paraguariensis</i>) in a Single-Pass/Single-Zone Conveyor-Belt Dryer

Koop, Laís; Tussolini, Loyse; Voll, Fernando Augusto Pedersen; Zanoelo, Éverton Fernando

doi:10.1080/07373937.2014.943236

Cited by 9 publications

(6 citation statements)

References 29 publications

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“…The specific heat and the modified heat transfer coefficient of yerba mate leaves were obtained from the literature, respectively 1780 J kg -1 °C -1 [25], and: 181 W kg -1 °C -1 [6].The desorption heat of yerba mate, λ (J kg -1 ), was equated to the heat of vaporization of pure water.…”

Section: Phenomenological Model and Numerical Solutionmentioning

confidence: 99%

“…Recently, [20] made the analysis and modeling of bay leaves drying using artificial neural network. There are, some works devoted to the analysis of drying kinetics of the yerba mate, in thin layer [8,21,22], and to study the kinetics of deep bed drying [23,6]. However no studies were found to investigate and obtaining the drying kinetics in fixed bed of the yerba mate originated from west of Parana region.…”

Section: Introductionmentioning

confidence: 96%

“…In any case, regardless the application on the origin compounds of yerba mate, cosmetic, pharmaceutical or food, one step at a solid-liquid extraction from the leaves is always necessary [6]. The extraction is negatively influenced by high moisture content present in the yerba mate leaves, and these levels are approximately 60 ± 5% on a wet basis, after harvest [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of a concentrated parameters mathematical model applied to drying of yerba mate leaves with variable mass transfer coefficient

Pilatti

Johann

Palú

et al. 2016

Applied Thermal Engineering

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Section: Phenomenological Model and Numerical Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of a concentrated parameters mathematical model applied to drying of yerba mate leaves with variable mass transfer coefficient

Pilatti

Johann

Palú

et al. 2016

Applied Thermal Engineering

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“…[14,15] A PID controller was then used to control the conveyor speed. Another conveyor-belt dryer model was suggested in [16] .…”

Section: Introductionmentioning

confidence: 99%

Intelligent Modeling and Control of a Conveyor Belt Grain Dryer Using a Simplified Type 2 Neuro-Fuzzy Controller

2015

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In this paper, a nonlinear autoregressive with exogenous input (NARX) network was utilized to model a conveyor-belt grain dryer using a set of input-output data which was collected during an experiment to dry paddy grains. The resulting NARX model has achieved a remarkable modelling accuracy compared to other previously reported modelling techniques. To control the considered dryer, a simplified Type-2 adaptive neuro-fuzzy inference system (ANFIS) controller was proposed. The effectiveness of this controller was demonstrated by several performance tests conducted by computer simulations. Moreover, a comparative study with other related controllers further confirmed the superiority of the proposed dryer controller.

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“…In [13] the industrial dryer used for the moisture removal from wet raisins was investigated and gave suggestion for the controller according to drying model. A method of lines and without involving any adjustable parameter or numerically solving the dynamic 2-D model for drying of mate leaves (Ilex paraguariensis) is presented in [14]. In [15] drying of corn grains in conveyor dryer was analyzed and numerical solution using finite-volume method were presented.…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional mathematical model for simulation of the drying process of thick layers of natural materials in a conveyor-belt dryer

Salemović

Dedić²,

Ćuprić³

2017

THERM SCI

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This paper presents the mathematical model and numerical analysis of the convective drying process of thick slices of colloidal capillary-porous materials slowly moving through conveyor-belt dryer. A flow of hot moist air was used as drying agent. The drying process has been analyzed in the form of a 2-D mathematical model, in two directions: along the conveyor and perpendicular on it. The mathematical model consists of two non-linear differential equations and one equation with a transcendent character and it is based on the mathematical model developed for drying process in a form of a 1-D thin layer. The appropriate boundary conditions were introduced. The presented model is suitable for the automated control of conveyor-belt dryers. The obtained results with analysis could be useful in predicting the drying kinetics of potato slices and similar natural products.

show abstract

A Dynamic Two-Dimensional Model for Deep-Bed Drying of Mate Leaves (Ilex paraguariensis) in a Single-Pass/Single-Zone Conveyor-Belt Dryer

Cited by 9 publications

References 29 publications

Evaluation of a concentrated parameters mathematical model applied to drying of yerba mate leaves with variable mass transfer coefficient

Evaluation of a concentrated parameters mathematical model applied to drying of yerba mate leaves with variable mass transfer coefficient

Intelligent Modeling and Control of a Conveyor Belt Grain Dryer Using a Simplified Type 2 Neuro-Fuzzy Controller

Two-dimensional mathematical model for simulation of the drying process of thick layers of natural materials in a conveyor-belt dryer

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