Concurrent moving bed dryer modelling: Sensitivity of physicochemical parameters and influence of air velocity profiles

被引：8

作者：

Lira, T. S. ^{[1
]}

Barrozo, M. A. S. ^{[1
]}

Assis, A. J. ^{[1
]}

机构：

[1] Univ Fed Uberlandia, Sch Chem Engn, BR-38408100 Uberlandia, MG, Brazil

来源：

APPLIED THERMAL ENGINEERING | 2009年 / 29卷 / 5-6期

关键词：

Drying; Concurrent moving bed; Two-phase model; SOYBEAN SEEDS; MASS-TRANSFER; EQUATIONS; COUNTERCURRENT; SYSTEMS;

D O I：

10.1016/j.applthermaleng.2008.04.019

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Modelling of heat and mass transfer in moving bed dryers is generally based on the application of mass and energy balance equations for both solid and fluid phases (two-phase model). Some classical hypotheses are assumed in the development of these equations, such as flat air velocity profiles and constant physicochemical parameters. The main goal of this work was to ascertain the validity of this assumption applied to the modelling of concurrently moving bed dryers. Comparisons of the experimental data and the simulated responses revealed the significant influence of the distribution of air velocity in the drying process. The influence of various physicochemical parameters of the model was also analyzed based on sensitivity studies using experimental design and derivative methods based on the DASPK 3.0 code. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：892 / 897

页数：6

共 24 条

[1] Primary lymphoepithelioma-like carcinoma of the lung [J].

Barroso, A ;

Nogueira, R ;

Lencastre, H ;

Seada, J ;

Parente, B .

LUNG CANCER, 2000, 28 (01) :69-74

[2] The use of the orthogonal collocation method on the study of the drying kinetics of soybean seeds [J].

Barrozo, MAS ;

Henrique, HM ;

Sartori, DJM ;

Freire, JT .

JOURNAL OF STORED PRODUCTS RESEARCH, 2006, 42 (03) :348-356

[3] Analysis of soybean seed quality related to drying in parallel flow sliding bed [J].

Barrozo, MAS ;

Felipe, CAS ;

Lacerda, AF ;

Lisboa, MH .

SEED SCIENCE AND TECHNOLOGY, 2005, 33 (03) :675-685

[4] The drying of soybean seeds in countercurrent and concurrent moving bed dryers [J].

Barrozo, MAS ;

Murata, VV ;

Costa, SM .

DRYING TECHNOLOGY, 1998, 16 (9-10) :2033-2047

[5] Discrimination of equilibrium moisture equations for soybean using nonlinearity measures [J].

Barrozo, MAS ;

Sartori, DJM ;

Freire, JT ;

Achcar, JA .

DRYING TECHNOLOGY, 1996, 14 (7-8) :1779-1794

[6]

BARROZO MAS, 1995, THESIS FEDERAL U SAO

[7]

Box M. J., 1978, STAT EXPT INTRO DESI

[8] MATHEMATICAL-MODELING OF GRAIN DRYING IN COUNTER-FLOW BEDS - INVESTIGATION OF CROSSOVER OF AIR AND GRAIN TEMPERATURES [J].

BRUCE, DM ;

GINER, SA .

JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 1993, 55 (02) :143-161

[9] EQUATION FOR THE VELOCITY PROFILE IN PACKED-COLUMNS [J].

FAHIEN, RW ;

STANKOVIC, IM .

CHEMICAL ENGINEERING SCIENCE, 1979, 34 (11) :1350-1354

[10] Drying of soybean seeds in a concurrent moving bed: Heat and mass transfer and quality analysis [J].

Felipe, CAS ;

Barrozo, MAS .

DRYING TECHNOLOGY, 2003, 21 (03) :439-456

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