Modeling of heat and mass transfer in a non-conventional rotary dryer

Souza, Glaucia F. M. V.; Avendaño, P.S.; Francisquetti, M. C. C.; Ferreira, Fabiana; Duarte, Cláudio Roberto; Barrozo, M. A. S.

doi:10.1016/j.applthermaleng.2020.116118

Cited by 15 publications

(4 citation statements)

References 20 publications

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“…A rotary dryer, often known as a drum dryer, is a dryer that rotates continuously [48 , 49] . The dryer in this research is heated by hot air shouted by a blower from the heating burner [50 , 51] . Direct contact with hot air moving countercurrent with a stream of solid material is used to heat coffee bean [52 , 53] .…”

Section: Methodsmentioning

confidence: 99%

Implementation of fuzzy logic control algorithm for temperature control in robusta rotary dryer coffee bean dryer

Nafisah,

Syamsiana,

Putri

et al. 2024

MethodsX

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Section: Methodsmentioning

confidence: 99%

Implementation of fuzzy logic control algorithm for temperature control in robusta rotary dryer coffee bean dryer

Nafisah,

Syamsiana,

Putri

et al. 2024

MethodsX

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“…Perazzini et al [32] developed a dynamic model of drying citrus residues in a rotary drum, with model validation carried out in a semi-industrial rotary dryer. Souza et al [33] analyzed the…”

Section: Introductionmentioning

confidence: 99%

Modeling and Design of a Solar Rotary Dryer Bench Test for Phosphate Sludge

Ettahi

Chaanaoui

Vaudreuil

et al. 2022

Modelling and Simulation in Engineering

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As an eco-friendlier way to manage mining waste, the use of solar energy to dry phosphate sludge in a rotary dryer is envisioned. As a first step toward this end, a design study for a bench-scale rotary dryer for phosphate sludge is detailed, using a one-dimensional mathematical model developed for this task. Using the Engineering Equation Solver (EES) software, a steady-state transport phenomena model was developed that enables an estimation of the moisture and temperature profiles for both gas and product in the dryer. A sensitivity analysis evaluated the effects and influence of different geometric parameters and operating conditions on the product moisture profile. Parameters involved include the diameter of the dryer, the residence time of the product to dry, inlet air temperature, and inlet product humidity. This allowed for the selection of suitable design parameters for the operation of a phosphate sludge dryer with a 1.5 m length and an internal diameter of 11.5 cm. The inlet air temperature of the rotary dryer was set at 200°C to achieve a reduction of moisture content in the product from 30% to 7%. The model was validated through literature and experimental datasets, with an error averaging 0.22% and 1.52%, respectively.

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“…Ruby and Sutrisno [24] firstly discussed the problems of how to establish and solve heat equation models, then, it built a heat equation model for rice dryer, and employed the variable separation method to solve it; and the simulation and experiment were conducted under both steady and unsteady state conditions. Souza et al [25] analyzed a developed nontraditional rotary dryer and used a two-phase model and a set of constitutive equations to describe the drying process, the equations were numerically solved using normal configuration technique, experiment proved that the simulation results were in good agreement with the experimental data. Novak et al [26] studied the motion of fabrics in the drum of household heat pump drum-type dryer and its influence on the performance parameters of the dryer under different load masses and drum speeds; then multiple regression analysis was performed and a condensate water mass flow model was constructed, as a function of drum speed, load mass, and drying stage, its results can optimize the operating parameters of the dryer, including energy efficiency, drying time for per kilogram of fabric, and condensate water mass flow.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis and Calculation of the Drying and Heating System of Automatic Stirring Equipment

Qu¹

2021

IJHT

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The drying and heating system (DHS) is the core component of automatic stirring equipment, so analyzing its thermodynamics is crucial for improving the efficiency of the equipment. However, existing empirical thermodynamic formulas generally take certain working conditions as prerequisites, and substituting relevant parameters of DHS into calculation can cause large errors. In view of this problem, this paper attempts to perform thermodynamic analysis and calculation on the DHS of automatic stirring equipment. At first, the material ratio of the automatic stirring equipment was analyzed in the text, and the drying and heating process of mixture was divided into three stages: mixture preheating, mixture drying, and heating mixture to the working temperature. Then, the heat consumption of DHS, the heat consumption of fuel combustion, the consumption rate of the fuel, and the heat efficiency of DHS were measured and calculated. At last, the thermodynamic analysis results of DHS of automatic stirring equipment were given, and the measurement and calculation methods adopted in the paper were proved to be effective.

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Modeling of heat and mass transfer in a non-conventional rotary dryer

Cited by 15 publications

References 20 publications

Implementation of fuzzy logic control algorithm for temperature control in robusta rotary dryer coffee bean dryer

Implementation of fuzzy logic control algorithm for temperature control in robusta rotary dryer coffee bean dryer

Modeling and Design of a Solar Rotary Dryer Bench Test for Phosphate Sludge

Thermodynamic Analysis and Calculation of the Drying and Heating System of Automatic Stirring Equipment

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