Drying and Heating Processes in Arbitrarily Shaped Clay Materials Using Lumped Phenomenological Modeling

Elisiane S. Lima, João M. P. Q. Delgado, Ana S. Guimarães, Wanderson M. P. B. Lima, Ivonete B. Santos, Josivanda P. Gomes, Rosilda S. Santos, Anderson F. Vilela, Arianne D. Viana, Genival S. Almeida, Antonio G. B. Lima and João E. F. Franco
Additional contact information
Elisiane S. Lima: Department of Mechanical Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil
João M. P. Q. Delgado: CONSTRUCT-LFC, Department of Civil Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
Ana S. Guimarães: CONSTRUCT-LFC, Department of Civil Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
Wanderson M. P. B. Lima: Department of Mechanical Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil
Ivonete B. Santos: Department of Physics, State University of Paraiba, Campina Grande, PB 58429-500, Brazil
Josivanda P. Gomes: Department of Agricultural Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil
Rosilda S. Santos: Department of Science and Technology, Federal Rural University of the Semi-Arid Region, Caraúbas, RN 59780-000, Brazil
Anderson F. Vilela: Department of Agro-Industrial Management and Technology, Federal University of Paraíba, Bananeiras, PB 58220-000, Brazil
Arianne D. Viana: Department of Agro-Industrial Management and Technology, Federal University of Paraíba, Bananeiras, PB 58220-000, Brazil
Genival S. Almeida: Federal Institute of Education, Science and Technology of Paraiba, Pedras de Fogo, PB 58328-000, Brazil
Antonio G. B. Lima: Department of Mechanical Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil
João E. F. Franco: Department of Mechanical Engineering, Federal University of Campina Grande, Campina Grande, PB 58429-900, Brazil

Energies, 2021, vol. 14, issue 14, 1-25

Abstract: This work aims to study the drying of clay ceramic materials with arbitrary shapes theoretically. Advanced phenomenological mathematical models based on lumped analysis and their exact solutions are presented to predict the heat and mass transfers in the porous material and estimate the transport coefficients. Application has been made in hollow ceramic bricks. Different simulations were carried out to evaluate the effect of drying air conditions (relative humidity and speed) under conditions of forced and natural convection. The transient results of the moisture content and temperature of the brick, and the convective heat and mass transfer coefficients are presented, discussed and compared with experimental data, obtaining a good agreement. It was found that the lower the relative humidity is and the higher the speed of the drying air is, the higher the convective heat and mass transfer coefficients are at the surface of the brick and in the holes, and the faster the moisture removal material and heating is. Based on the predicted results, the best conditions for brick drying were given. The idea is to increase the quality of the brick after the process, to reduce the waste of raw material and energy consumption in the process.

Keywords: drying; ceramic materials; industrial brick; lumped model; simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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