Drying of Ceramic Hollow Bricks in an Industrial Tunnel Dryer: A Finite Volume Analysis

Tavares, Francisca de Souza; Neto, Severino de Farias; Barbosa, Enivaldo Santos; Lima, Antonio de; Silva, Carlota e

doi:10.1260/1750-9548.8.3.297

Cited by 7 publications

(5 citation statements)

References 3 publications

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“…Among the researches that deal with brick drying, there are those that deal with drying kinetics [1,2,8,9,10,11] and those that seek to understand the defects caused by poor drying, such as cracks that appear in the burning of the material [1,5,7,12].…”

Section: Diffusion Foundations Vol 10mentioning

confidence: 99%

On the Use of CFD in Thermal Analysis of Industrial Hollow Ceramic Brick

Araújo

Delgado

Lima

2017

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The manufacture of clay bricks goes through several phases, among which are clay wetting, molding, drying and firing. The drying process has a high energy consumption and the material needs to be dried with control for avoid it to be unusable after drying. Optimization of the drying process (reduction of process time and energy expenditure) is crucial for the ceramist industry. In this sense, this work aims to make a transient thermal study of the temperature distribution in an industrial brick due to the energy supply of drying-air flowing inner it turbulent regime. The study is performed through numerical simulation using the software ANSYS® CFX. Transient results are displayed in terms of fields of the temperature and air velocity, and temperature of the brick. It was concluded that the higher the velocity of flow of hot air, the faster the heat diffuses into the brick. Independent of air velocity, there are temperature gradients on the surface of the brick

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Section: Diffusion Foundations Vol 10mentioning

confidence: 99%

On the Use of CFD in Thermal Analysis of Industrial Hollow Ceramic Brick

Araújo

Delgado

Lima

2017

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“…In the consulted literature, no studies were found that evaluated the drying process of ceramic materials at low temperatures (less than 50 • C). In addition, such works are limited to simpler geometries, such as hollow bricks and ceramic blocks [1,3,5,7,8,13,16,[19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. It was also noticed that the only operational parameter evaluated in the drying process of ceramic materials reported in the literature is the temperature of the drying air; parameters not being evaluated, for example, were cases involving the same temperature and different values for relative humidity and/or velocity, including dimensions variations.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Drying Process of Ceramic Sanitary Ware at Low Temperature

et al. 2023

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Drying is one of the stages with the highest energy consumption in the manufacturing process of ceramic materials and aims to reduce the product’s moisture to levels necessary for safe firing stage, reducing the chances of defect formation. For sanitary ware, there is an additional energy cost in the pre-drying stage, which takes place immediately after removing the parts from the molds, and is carried out in an environment with lower temperatures (ranging from 30 to 40 °C). This work aims to experimentally study the drying process of sanitary ware at low temperatures, with particular reference to sanitary toilets with industrial dimensions. Four drying experiments were carried out in an oven with different operating conditions (temperature and relative humidity). The results indicate that an increase in temperature and reduction in relative humidity provoke a faster drying rate. For some physical situations, it is more interesting to dedicate efforts to reducing the relative humidity of the drying air instead of seeking solutions to raise its temperature. Furthermore, a correlation between the linear retraction and moisture content was observed; the greater the moisture loss, the greater the sample shrinkage.

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“…Because the importance, several theoretical models have been proposed in the literature to study drying process of materials for the ceramic industry such as clay [3][4][5][6][7], roof tiles [8] and bricks [9][10][11][12]. In this sense, the use of Computational Fluid Dynamics (CFD) to simulate the drying process enables better process control, optimizing production with reduction of losses and cost, avoiding waste of raw materials.…”

Section: Introductionmentioning

confidence: 99%

Drying of Industrial Hollow Ceramic Brick: A Numerical Analysis Using CFD

Araújo

Santos

Silva

et al. 2019

DDF

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The drying process can be defined how unit operation for removing water of one moist solid to an unsaturated gaseous phase due to heat transfer. Numerical simulation emerges like a tool that allows the reproduction of drying experiments using computers and suitable softwares. In this sense, this works aims to predict drying process of an industrial hollow ceramic brick inside the kiln using computational fluid dynamics analysis. For one drying temperature of 60°C, results of the drying and heating kinetics, and moisture content, velocity and temperature distributions are shown and analyzed. A comparison between predicted and experimental data of the moisture content and temperature of the brick along the process was done and a good agreement was obtained.

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Drying of Ceramic Hollow Bricks in an Industrial Tunnel Dryer: A Finite Volume Analysis

Cited by 7 publications

References 3 publications

On the Use of CFD in Thermal Analysis of Industrial Hollow Ceramic Brick

On the Use of CFD in Thermal Analysis of Industrial Hollow Ceramic Brick

Investigating the Drying Process of Ceramic Sanitary Ware at Low Temperature

Drying of Industrial Hollow Ceramic Brick: A Numerical Analysis Using CFD

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