Simultaneous heat and mass transfer in a fixed bed dryer

被引:30
作者
Souza, G. F. M. V. [1 ]
Miranda, R. F. [2 ]
Lobato, F. S. [1 ]
Barrozo, M. A. S. [1 ]
机构
[1] Univ Fed Uberlandia, Sch Chem Engn, BR-38400902 Uberlandia, MG, Brazil
[2] Univ Fed Uberlandia, Sch Mech Engn, BR-38400902 Uberlandia, MG, Brazil
关键词
Soybean seeds; Thick layer dryer; Two-phase model; CONCURRENT MOVING-BED; EQUILIBRIUM MOISTURE EQUATIONS; SOYBEAN SEEDS; COUNTERCURRENT; QUALITY; SIMULATION; AIR;
D O I
10.1016/j.applthermaleng.2015.06.088
中图分类号
O414.1 [热力学];
学科分类号
摘要
This study evaluated the simultaneous heat and mass transfer between the air and soybean seeds in a fixed bed dryer in thick layer, using a two-phase model, with an adequate set of constitutive equations. The proposed model was solved numerically using the method of lines. The experimental data for seed moisture and temperature, and those of the drying air, obtained in a pilot unit at different positions along the bed, were compared to simulated results, indicating good agreement. Process heterogeneity along the fixed bed dryer was also analyzed. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:38 / 44
页数:7
相关论文
共 23 条
[11]   DEEP BED DRIER SIMULATION WITH INTRA-PARTICLE MOISTURE DIFFUSION [J].
INGRAM, GW .
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 1976, 21 (03) :263-272
[12]  
Krzyzanowski Francisco Carlos, 2006, Rev. bras. sementes, V28, P77, DOI 10.1590/S0101-31222006000200010
[13]   Heat and mass transfer in a countercurrent moving bed dryer [J].
Lacerda, AF ;
Lisboa, MH ;
Barrozo, MAS .
APPLIED THERMAL ENGINEERING, 2005, 25 (16) :2641-2652
[14]   Concurrent moving bed dryer modelling: Sensitivity of physicochemical parameters and influence of air velocity profiles [J].
Lira, T. S. ;
Barrozo, M. A. S. ;
Assis, A. J. .
APPLIED THERMAL ENGINEERING, 2009, 29 (5-6) :892-897
[15]   A study of particle motion in rotary dryer [J].
Lisboa, M. H. ;
Vitorino, D. S. ;
Delaiba, W. B. ;
Finzer, J. R. D. ;
Barrozo, M. A. S. .
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING, 2007, 24 (03) :365-374
[16]  
Mujumdar A. S., 2006, International Journal of Postharvest Technology and Innovation, V1, P76, DOI 10.1504/IJPTI.2006.009185
[17]  
OSBORN GS, 1989, T ASAE, V32, P2109, DOI 10.13031/2013.31271
[18]   MATHEMATICAL-MODELING AND COMPUTER-SIMULATION OF HEAT AND MASS-TRANSFER IN AGRICULTURAL GRAIN DRYING - A REVIEW [J].
PARRY, JL .
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 1985, 32 (01) :1-29
[19]   Modelling of soybean seed drying in concurrent sliding bed dryers: Effect of the number of stages on the seed quality and drying performance [J].
Pfeifer, A. A. ;
Murata, V. V. ;
Barrozo, M. A. S. .
BIOSYSTEMS ENGINEERING, 2010, 107 (04) :341-348
[20]   The use of nonlinearity measures to discriminate the equilibrium moisture equations for Bixa orellana seeds [J].
Ribeiro, JA ;
Oliveira, DT ;
Passos, ML ;
Barrozo, MAS .
JOURNAL OF FOOD ENGINEERING, 2005, 66 (01) :63-68