Santos, Rosimeire Cavalcante dosSantos, Cynthia Patricia de Sousa2019-09-092019-09-092019-07-29SANTOS, Cynthia Patricia de Sousa. Estoque de energia da madeira de espécies florestais da Caatinga e análise técnica de sua utilização na queima de cerâmica vermelha. 2019. 79f. Dissertação (Mestrado em Ciências Florestais) - Escola Agrícola de Jundiaí, Universidade Federal do Rio Grande do Norte, Natal, 2019.https://repositorio.ufrn.br/jspui/handle/123456789/27687In Rio Grande do Norte, there is a high industrial demand for wood for energy, as is the case with the red ceramic industry of the state that uses it in the burning of clay. The wood presents different energetic characteristics, according to the species, but the commercialization of this fuel in the RN is carried out based only on the volume of wood. The objective of the study was to determine the energy density in three different areas under sustainable forest management in the RN and to carry out the technical evaluation of Mimosa tenuiflora and Anacardium occidentale in brick burning. The study was developed in two stages. In the first stage, 5 forest species were selected for area I (Campo Grande), 6 for area II (Cruzeta) and 12 for area III (Touros), according to the importance value index. Three trees were collected from each species to determine basic density, upper calorific value, ash content, fuel value index, species energy density and energy productivity per area. In the second stage the wood of Anacardium occidentale and Mimosa tenuiflora during the burning of the bricks was evaluated, according to three treatments in the following proportions of use: (0JP) 100% occidentale; (50JP) 50% tenuiflora + 50% occidentale; and (100JP) 100% tenuiflora. It was determined the stacking factor of the wood of both species, the average total consumption (m³), the contents of volatile matter, ash and fixed carbon, higher calorific value, basic density, wood moisture content, furnaces, temperature curve of burning, quality of the bricks and the relation with the temperature, cost of acquisition of the woods, the total revenue and net revenue from the sale of the bricks. There was a difference in energy density of forest species and area III (Touros) presented high productivity due to the higher number of energetic species. The use of Mimosa tenuiflora in the burning of bricks reduced the consumption of wood and the cost of acquisition, besides increasing the revenue of the sale of bricks in the treatment 50JP. The commercialization of wood native to areas under forest management must be carried out not only by volume but also by energy density and its legal use in the red ceramic industry reduces the cost of fuel acquisition and adds quality to the bricks.Acesso AbertoDensidade energéticaBiomassaProdutos cerâmicosmasterThesisCNPQ::CIENCIAS EXATAS E DA TERRA