Silo vertical de madeira para armazenamento de grãos de guaraná no Estado do Amazonas.

Abstract

This is work was developed for to test one silo model, builded of wood, that is an abundant material in Brazil of North Region, for to store guarana (Paullinia cupana H.B.K.) grains, considering that this product, still is stored, in the conventional form, or, in sacks. Thus, the model builded and designed was developed for to introduce at Amazonas of State a new form of stored of guarana in grain, giving at producer advantages about the stored in sacks. The silo model proposed, has quadrate section, has hoopper toward discharge, was make with wood and screwed. The species utilized of timber was the quaruba (Vochisia maxima), that is a common species and of cost relativement lower, the product utilized to realization of tests was the guarana (Paullinia cupana H.B.K.) of economy potential considerable in the Amazonas of State. The tests were make for know the wall deflection in the silo, when in condition of filling, in condition static and in condition of discharge. The theoretical deflections were evaluated by horizontal theoretical pressures obtained for method of JANSEN and D1N( Standard German), while that the deflection were evaluate by equation adapted at study in two setting beam and two supported beam, making after comparisons with the result experimental. The process of construction the of silo was simple. In the evaluation the of deflection, the theoretical method that presented approximation the of experiments deflection, was when considering the wall of silo by two setting beam. During the experiments, too, was obtained the humidity of product, evaluated flow form and the flow velocity.