Drying plays an important role in the production of clay tiles. In the present article, drying process is analyzed taking experimental data for several masonry clays obtained from different clay tile manufacturers and published data for different clay slabs. Calculation methods and computer programs designed for the calculation of the effective diffusion coefficient are developed. The first calculation method represents the analytical solution of the Crank equation, while the second one represents the analytical solution of the Efremov equation with boundary conditions in the form of the flux. Unlike other materials, clay tiles exhibit shrinkage during the drying process. For this reason, a shrinkage correction is included in both calculation methods. Four models (Al, A2, B1 and B2) for predicting the drying behavior are obtained as the result of the calculation cited programs. It is shown that the calculated effective diffusion coefficient determined by the designed computer programs,... using experimentally obtained and selected published data sets have similar values to those of the same coefficient reported in the literature. Based on the mathematically determined prognostic values of the effective diffusion coefficient, it was concluded that there is more than 90% agreement between the experimentally recorded and the calculated drying curves.
TY - JOUR
AU - Vasić, Miloš
AU - Grbavčić, Željko
AU - Radojević, Zagorka
PY - 2014
UR - http://rims.institutims.rs/handle/123456789/239
AB - Drying plays an important role in the production of clay tiles. In the present article, drying process is analyzed taking experimental data for several masonry clays obtained from different clay tile manufacturers and published data for different clay slabs. Calculation methods and computer programs designed for the calculation of the effective diffusion coefficient are developed. The first calculation method represents the analytical solution of the Crank equation, while the second one represents the analytical solution of the Efremov equation with boundary conditions in the form of the flux. Unlike other materials, clay tiles exhibit shrinkage during the drying process. For this reason, a shrinkage correction is included in both calculation methods. Four models (Al, A2, B1 and B2) for predicting the drying behavior are obtained as the result of the calculation cited programs. It is shown that the calculated effective diffusion coefficient determined by the designed computer programs, using experimentally obtained and selected published data sets have similar values to those of the same coefficient reported in the literature. Based on the mathematically determined prognostic values of the effective diffusion coefficient, it was concluded that there is more than 90% agreement between the experimentally recorded and the calculated drying curves.
PB - Elsevier Science Sa, Lausanne
T2 - Chemical Engineering and Processing-Process Intensification
T1 - Determination of the moisture diffusivity coefficient and mathematical modeling of drying
EP - 44
SP - 33
VL - 76
DO - 10.1016/j.cep.2013.12.003
ER -
@article{
author = "Vasić, Miloš and Grbavčić, Željko and Radojević, Zagorka",
year = "2014",
abstract = "Drying plays an important role in the production of clay tiles. In the present article, drying process is analyzed taking experimental data for several masonry clays obtained from different clay tile manufacturers and published data for different clay slabs. Calculation methods and computer programs designed for the calculation of the effective diffusion coefficient are developed. The first calculation method represents the analytical solution of the Crank equation, while the second one represents the analytical solution of the Efremov equation with boundary conditions in the form of the flux. Unlike other materials, clay tiles exhibit shrinkage during the drying process. For this reason, a shrinkage correction is included in both calculation methods. Four models (Al, A2, B1 and B2) for predicting the drying behavior are obtained as the result of the calculation cited programs. It is shown that the calculated effective diffusion coefficient determined by the designed computer programs, using experimentally obtained and selected published data sets have similar values to those of the same coefficient reported in the literature. Based on the mathematically determined prognostic values of the effective diffusion coefficient, it was concluded that there is more than 90% agreement between the experimentally recorded and the calculated drying curves.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering and Processing-Process Intensification",
title = "Determination of the moisture diffusivity coefficient and mathematical modeling of drying",
pages = "44-33",
volume = "76",
doi = "10.1016/j.cep.2013.12.003"
}
Vasić, M., Grbavčić, Ž.,& Radojević, Z.. (2014). Determination of the moisture diffusivity coefficient and mathematical modeling of drying. in Chemical Engineering and Processing-Process Intensification
Elsevier Science Sa, Lausanne., 76, 33-44.
https://doi.org/10.1016/j.cep.2013.12.003
Vasić M, Grbavčić Ž, Radojević Z. Determination of the moisture diffusivity coefficient and mathematical modeling of drying. in Chemical Engineering and Processing-Process Intensification. 2014;76:33-44.
doi:10.1016/j.cep.2013.12.003 .
Vasić, Miloš, Grbavčić, Željko, Radojević, Zagorka, "Determination of the moisture diffusivity coefficient and mathematical modeling of drying" in Chemical Engineering and Processing-Process Intensification, 76 (2014):33-44,
https://doi.org/10.1016/j.cep.2013.12.003 . .
