Experimental prototype of silo-dryer-aerator of grains using Computational Fluid Dynamics (CFD) system

被引：10

作者：

Coradi, Paulo Carteri ^{[1
]}

Calegare Lemes, Angelo Francisco ^{[2
]}

机构：

[1] Univ Fed Santa Maria, Cachoeira Do Sul, RS, Brazil

[2] Univ Fed Mato Grosso do Sul, Rodovia MS 306 S-N, BR-79560000 Chapadao Do Sul, MS, Brazil

来源：

ACTA SCIENTIARUM-TECHNOLOGY | 2019年 / 41卷

关键词：

drying of agricultural products; distribution of air drying; sizing of drying system; DRYING KINETICS; QUALITY; MANAGEMENT; MOISTURE; STORAGE; LEAVES; RICE;

D O I：

10.4025/actascitechnol.v41i1.36949

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The aim of this study was to size up and evaluate a fixed bed experimental silo-dryer-aerator with four static grain drying cells for segregation lots, through simulations with mathematical equations and a computational fluid dynamics (CFD) system. The average specific energy consumption of the dryer was 2,998.56 kJ kg(-1) of evaporated water. At the global scale, the amount of heat needed to complete a grain drying was 22,283.84 kcal (5,325.96 kJ kg(-1)) and the amount of heat required to complete the cooling of a stored grain mass was 3,525 kcal (842.49 kJ kg(-1)). The drying equipment responded positively to the dynamic aspects of air, distribution, flow, pressure, speed and heating. The results obtained allow us to conclude that the silo-dryer-aerator prototype was characterized as a viable and sustainable tool, making it possible to perform the drying and storage of grains in standardized and segregated lots, according to genetic characterization, minimizing quantitative and qualitative losses.

引用

页数：11

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