Propriedades térmicas do painel aglomerado de bagaço de cana-de-açúcar (Saccharum officinarum L.)

Abstract

The sugar cane bagasse is the most abundant agricultural residue produced in Brazil. Environmental problems that came from the residue destination must be considered for the environment preservation and also for the decreasing of the wood using cost with the possible substitution by the bagasse. This research was made with the objective of determining the heat transference flow by free convection to the sugar cane bagasse panels cluster that came from China and compare them to the ones from the pinus and eucalipto panels cluster. Three panel modules of the studied species were made and internally coated. Five repetitions by species were made. A heat source was generated in the modules and the temperatures were measured with k-type thermocouples connected to a data collector. The testing time was of 180 minutes with a recording interval each minute. The apparent density, humidity, accumulated temperature, heat transference rate and heat transference flow of the panels were determined. The results showed that the heat transference flow of the bagasse panels was statistically different from the other ones. These differences between the species of panels in differentiated intervals were observed, in function of increasing the temperature.