Ednilton T. de Andrade

Three-Dimensional Simulation of the Temperature Variation in Corn Stored in Metallic Bin

This work presents the modeling of the heat transfer process in a cylindrical bin with 3.6 m of diameter and 2.2 m of height filled with corn. The model is a threedimensional and does a transient analysis of the process. The developed model simulated well the temperature variation across the corn bin. The mean relative error of the simulated product temperature was 2.2%.

Distribuição da pressão estática em uma coluna de canola: análise por elementos finitos

The flow of a fluid through a porous medium occurs during the aeration and drying stages of a mass of grains, used for the product quality conservation. In this work, using the finite element technique, the variation of the static pressure in a bed of rapeseed Iciola-41 (Brassica napus L. var. olifera) submitted to different airflows was modeled. Through an optimization process, the permeability of the bed to the different airflows was also determined. The results of the finite element analysis, when compared with those obtained from some classical models, presented the best performance. The relative error using the finite element technique varied in the range 0.7 - 24.3% while the relative error for all simulations was approximately equal to 5.3%.

Facilities for Obtaining Soybean Oil in Small Plants

Soybeans, despite its low oil content (18% to 22%) is the second most important oilseed crop of the world, after palm oil. In 2010, it represented 27.3% of vegetable oil total produced worldwide, compared with 33.7% palm oil (pulp and almond), 15.6% rapeseed oil and 8.7% sunflower oil, together are account for 85.3% of vegetable oil total produced globally [12]. The high protein content (37% to 40%) of soybean is the main feedstock in the manufacture of feed for domestic animals. Almost 70% of meal protein that makes up the animal feed comes from soybean [7].