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| Donato, Danilo Barros; Castro, Renato Vinícius Oliveira; Carneiro, Angélica de Cássia Oliveira; Carvalho, Ana Márcia Macedo Ladeira; Pereira, Bárbara Luísa Corradi; Oliveira, Aylson Costa; Barbosa, Conrad Julião. |
| The aim of this study was to compare three alternative methods to determine the moisture content of wood logs with the method recommended by ABNT. The moisture content of the wood was determined in a sawdust sample and with a electric meter capacitive. it was also determined the moisture content of a disk sample using the method recommended by ABNT. Using the regression model, all the methods were statistically similar. It was concluded that the use of alternative methods for determining the moisture content of wood in logs is feasible, to substitute the traditional method, but corrections must be implemented. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative methods; Moisture content; Eucalyptus; Regression Engenharia Florestal; Tecnologia e utilização de produtos florestais Métodos alternativos; Teor de umidade; Eucalipto; Regressão. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/608 |
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| Santos, Rosimeire Cavalcante dos; Carneiro, Angélica de Cássia Oliveira; Castro, Renato Vinícius Oliveira; Pimenta, Alexandre Santos; Castro, Ana Flávia Neves Mendes; Marinho, Itaragil Venâncio; Boas, Mariana Almeida Villas. |
| This study aimed to evaluate the potential use of waste generated by forestry species that occur in semiarid northeastern at Seridó region, Rio Grande do Norte, for the briquettes production, determine the physical and mechanical briquettes properties, and to correlate the wood density with the density after the briquettes production and briquettes density with the compressive strength. Thirty-two trees were collected (eight species with four replications). The wood physical and chemical properties evaluation were held under a completely randomized design. For the variables related to briquette, it was adopted the same design with three replicates for each species, totalizing 24 sampling units. The briquettes produced with jurema-preta wood stood out as a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest residues; Briquetting; Renewable energy; Semi-arid Brazilian region Resíduos florestais; Briquetagem; Energia renovável; Região semiárida brasileira. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/292 |
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| Santos, Rosimeire Cavalcante dos; Castro, Renato Vinícius Oliveira; Carneiro, Angélica de Cássia Oliveira; Castro, Ana Flávia Neves Mendes; Pimenta, Alexandre Santos; Pinto, Edna Moura; Marinho, Itaragil Venâncio. |
| The aim of this study was to quantify the stocks in volume, biomass and carbon in wood of a fragment of Caatinga dry forest, in Caicó Municipality, Rio Grande do Norte State, northeastern of Brazil. The inventory and sampling of biological material was carried out for biomass and carbon analysis. Wood density of eight species representing 91% of the importance value (VI) of the fragment was determined to convert timber volume into biomass. The percentage of carbon in these species was determined by wood elemental analysis. The carbon stock was calculated based on that carbon percentage multiplied by biomass of each tree. For those species that have not been examined (9% of VI) it was used average basic density () and carbon (), weighted by importance value... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seridó region; Forest inventory; Brazilian natural vegetation Recursos Florestais; Engenharia Florestal; Mensuração Florestal Região do Seridó; Inventário florestal; Vegetações naturais brasileiras. |
| Ano: 2016 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/772 |
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| Reis, Aliny Aparecida dos; Protásio, Thiago de Paula; Melo, Isabel Cristina Nogueira Alves de; Trugilho, Paulo Fernando; Carneiro, Angélica de Cássia Oliveira. |
| This work aimed to evaluate the effect of planting sites on the elemental chemical composition of Eucalyptus urophylla wood and the quality of its charcoal and to verify the statistical relations among the properties measured in wood and charcoal. It was used twelve 7-years old trees from E. urophylla clone from Curvelo, Itacambira and Turmalina counties located in Minas Gerais State, Brazil. The elemental chemical composition (C, H, N, S and O) of the wood and C/H and C/N relations were determined. The wood was carbonized in a laboratorial muffle furnace. It was determinate the gravimetric yields in charcoal, in pyroligneous extract and, by difference, the non-condensable gases. The apparent relative density, the higher heating value, the proximate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Iron industry Clone Correlations Biofuel Recursos Florestais; Engenharia Florestal; Energia da Biomassa Siderurgia Clone Correlações Biocombustível. |
| Ano: 2012 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/363 |
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