Construção e implementação de um protótipo de secador solar para secagem de madeira

Abstract

The process of drying wood is currently time consuming, generating costs and risks to the product. The study in asu, has as guideline the economy and sustainability when it comes to drying wood. In this sense, a solar dryer model for drying pine wood (Pinus elliottii) was built, the solar drying process was evaluated compared to another method, outdoors, evaluating the final humidity, drying time and final quality of the wood by the two methods available. When comparing drying in a solar oven, with a fan powered by solar energy, it was concluded the high effectiveness in relation to drying in the open air or with the solar oven without forced ventilation, showing to be twice as fast as drying in air free and with lower moisture content. When analyzing the quality of the wood, the wood dried in the open air, in its majority, it was observed the appearance of fungi and blue, while the wood dried in the solar dryer did not present such characteristic. Dry wood, both in a solar oven and outdoors, showed no incidence of defects such as collapse, cracking and decay.