Avaliação das condições térmicas de trabalho na etapa de prensagem a quente na confecção de chapas de compensado de Pinus

Abstract

The main objective of this work is to carry out an evaluation of the thermal conditions of the work place, in the manual loading and unloading stage of wood slabs for hot pressing in the production of plywood sheets of Pinus sp. The data used in this analysis were collected in October 2016 at a company that manufactures this product in the southeastern region of the state of Paraná, Brazil, with a Cfb (subtropical moist mesothermal) climate, with an altitude of 925 m, with an average annual temperature of 18ºC and average annual rainfall of 1500mm. The evaluation was made through measurements and calculations of press temperature, workplace temperature, data of ventilation and exhaust equipment (through the necessary air flow), used to improve the thermal conditions of the workplace. The results show the need for a greater number of measurements (samples), especially in hotter year periods of the year and using measuring equipment with greater accuracy. Despite this, the workplace and the ventilation / exhaust equipment used by the industry can maintain a satisfactory temperature condition in the workplace in the period in question, in accordance with Brazilian legislation.