Heat and mass transport in an industrial tunnel dryer: Modeling and simulation applied to hollow bricks

被引：30

作者：

Almeida, Genival da Silva ^{[1
]}

da Silva, Joselito Barbosa ^{[2
]}

Joaquina e Silva, Carlota ^{[2
]}

Swarnakar, Ramdayal ^{[3
]}

Neves, Gelmires de Araujo ^{[4
]}

Barbosa de Lima, Antonio Gilson ^{[2
]}

机构：

[1] Fed Inst Educ Sci & Technol Roraima, BR-69303340 Boa Vista, RR, Brazil

[2] Univ Fed Campina Grande, Dept Mech Engn, BR-58429900 Campina Grande, PB, Brazil

[3] Univ Fed Campina Grande, Dept Chem Engn, BR-58429900 Campina Grande, PB, Brazil

[4] Univ Fed Campina Grande, Dept Mat Engn, BR-58429900 Campina Grande, PB, Brazil

来源：

APPLIED THERMAL ENGINEERING | 2013年 / 55卷 / 1-2期

关键词：

Drying; Cross-flow; Finite volume; Hollow brick; Industrial dryer; CLAY; STRESS;

D O I：

10.1016/j.applthermaleng.2013.02.042

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents a mathematical model and numerical solution to describe the drying of ceramic hollow bricks in a tunnel dryer of cross flow type on an industrial scale. The model is based on mass and energy balances written for a differential volume located in an arbitrary position of the solid material and include the condensation of water. To get the numerical solution of the governing equations the finite volume method and the "upwind" interpolation scheme for the convective terms are used. To validate the methodology, numerical and experimental results for the moisture content and the temperature of brick during the drying on an industrial scale are compared and a good correlation was obtained. Results of moisture content and temperature of the product, temperature, relative humidity and humidity ratio of drying air as a function of drying time and bed length of the dryer are presented and analyzed. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：78 / 86

页数：9

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