Analysis of storage conditions of a wheat silo-bag for different weather conditions by computer simulation

Authors
Arias Barreto, Alien; Abalone, Rita Monica; Gaston, Analia Graciela Lucia; Bartosik, Ricardo
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
A validated mathematical model was used to analyse grain storage condition and determine the change in concentration of CO2 in a silo-bag holding wheat from summer to winter for a typical productive region with sub-tropical (Saenz Peña, Chaco Province), intermediate (Pergamino, Buenos Aires Province) and temperate weather conditions (Balcarce, Buenos Aires Province) in Argentina. Initial moisture content of grain was set to 12, 14 and 16% w.b and bagging temperatures to 25 °C and 40 °C. For base conditions (12% w.b; 25 °C) CO2 level increased to 4% V/V and O2 decreased to 15.5% V/V in Balcarce while in Saenz Peña CO2 level increased to 6% V/V and O2 decreased to 13.9% V/V. For wet grain (16% w.b; 25 °C and 40 °C), O2 depleted to less than 1% V/V at the three locations. The grain mean temperature in combination with the CO2 and O2 levels achieved in the silo-bags demonstrate that, for the climatic conditions of southern and central regions of Argentina, insect control is feasible in silo-bags. Mean dry matter loss for all the storage conditions was estimated and compared to the critical limit for safe storage of grain and seeds; it did not exceed limits that would reduce commercial quality, although seed could be affected when stored wet and during the summer.
Fil: Arias Barreto, Alien. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Abalone, Rita Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Gaston, Analia Graciela Lucia. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Bartosik, Ricardo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires. Estación Experimental Agropecuaria Balcarce. Area de Investigación en Agronomía; Argentina
Subject
HERMETIC STORAGE
DRY MATTER LOSS
GRAIN QUALITY
SIMULATION
Ciencias de la Computación
Ciencias de la Computación e Información
CIENCIAS NATURALES Y EXACTAS
Agricultura
Agricultura, Silvicultura y Pesca
CIENCIAS AGRÍCOLAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/3073