Track: Case Studies

Abstract

The ventilation of machines or industrial processes allows to control the heat, the toxicity of the environments or their potential explosiveness. This means that a dirty or bad environment is also detrimental to productivity.
Trafopar S.A., is the first Paraguayan factory dedicated to the manufacture and commercialization of Distribution Transformers. The main use of wood in the construction of transformers is as separating pieces between windings, sections or between these and the core.
The proposed system combines local exhaust ventilation and impulse ventilation. The impulsion ventilation system will be through an axial fan, and will be in charge of guaranteeing the renewal of the air that will be sucked from the sector by the localized extraction ventilation system. A localized extraction system with ducts and aerial installation is proposed, with a cyclone as a particle separator, it will be located between the outlet of the main duct section and the fan.
Using CFD it was possible to validate the functionality of the proposed system. The simulation was carried out in two stages, the first consisted of representing the conditions of the carpentry sector before the implementation of the extraction system, and the second stage consisted of modeling the proposed system.
The results of the CFD showed a discrepancy maximum the 12.59% between the values obtained by the CFD and the calculations performed analytically. As the value obtained is less than 15% the analytically obtained results were taken as valid, thus guaranteeing the correct functioning of the system.

Keywords
CFD, Ventilation, Localized Extraction, Wood Dust, Separation