Santos, Rosimeire Cavalcante dosSilva, Maria Kely Alves Gomes da2022-10-072022-10-072022-06-01SILVA, Maria Kely Alves Gomes da. Potencial energético da madeira de clones de Eucalyptus implantados em região neotropical do Brasil e seu desempenho como biocombustível. Orientadora: Rosimeire Cavalcante dos Santos. 2022. 77f. Dissertação (Mestrado em Ciências Florestais) - Escola Agrícola de Jundiaí, Universidade Federal do Rio Grande do Norte, Natal, 2022.https://repositorio.ufrn.br/handle/123456789/49522The objective of this work was to investigate the bioenergetic potential of Eucalyptus wood under different density conditions and its technical performance as a fuel in the burning process of red ceramic products. Initially, five eucalyptus clones (A1, C3, E5, G7 and R9) were selected in six different spacings (3 X 0.25; 3 X 1; 3 X 2; 3 X 3; 3 X 5 and 3 X 7) , totaling 30 response variables. A survey of the mortality of individuals was carried out based on the database recorded in the inventories that took place every six months (2013 - 2019) to estimate the survival rate and volumetric production. For each treatment, three trees were harvested and sampled to determine the basic density, higher calorific value, ash content, volatile materials and fixed carbon and based on the data obtained, the stored energy per cubic meter (m3) and hectare (ha). Material A1 was selected for the firing process in a red ceramic industry, using the species Prosopis juliflora as a comparative factor. That said, for the technical evaluation in the burning, three treatments were adopted, with four replications: T1 - 100% Eucalyptus sp., T2 - 100% P. juliflora and T3 - 50% P. juliflora and Eucalyptus sp. The wood used was previously organized in piles in the yard and its dimensions measured to obtain its volume in stereo (st) and its solid volume determined from the stacking factor promoted by a template (1m2) at the center of each pile. For each repetition, the number of times the oven was filled with firewood, the interval between supplies and, after the firing, the percentage of first quality pieces, raw and broken, were recorded. Considering the final use of wood as an energy source, the C3 genetic material in the 3 X 1 m spacing resulted in the highest bioenergetic potential (4,085 MJ ha -1) due to the high survival rate in a reduced spacing. For the firing process, there were no significant differences in the quality of the pieces, however there was a reduction in wood consumption of 10.82% in the T3 treatment and of 44.93% in the T2 treatment in relation to T1.Acesso AbertoBiomassa florestalConsumo de madeiraFloresta energéticaDensidade energéticaLenhaPotencial energético da madeira de clones de Eucalyptus implantados em região neotropical do Brasil e seu desempenho como biocombustívelEnergy potential of the wood of Eucalyptus clones implanted in the neotropical region of Brazil and its performance as a biofuelmasterThesisCNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL