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You searched for subject:(eucalytus). Showing records 1 – 2 of 2 total matches.

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1. Erica Moraes de Souza. nfluence of the woodworkability parameters of Eucalyptus sp. wood in specific energy consumption for cutting in circular saw.

Degree: 2009, UNIVERSIDADE FEDERAL DE LAVRAS

New technologies used in the cutting of Eucalyptus sp. for the carbonization continuous process require care. The choice of tool and cutting speeds and feed influence on reducing the time and cost of energy during processing, optimizing its production. The objective was to verify the influence of the woodworkability parameters on specific energy spent cutting timber clones of Eucalyptus sp., MN 463 and VM 01, Company V &M Florestal. The tests were developed in the Laboratory of Woodworkability, Department of Forest Sciences, Universidade Federal de Lavras (DCF/UFLA). Were used logs of 1,70 m in length with less than 30 days of slaughter, considered to be green, and with more than 90 days, considered to be dry. The experiment was a 3 x 3 x 4 x 2 (speed cutting x speed feed x number of teeth x moisture) and 3 x 3 x 4 x 1 for the MN 463 and VM 01, respectively. Were evaluated the specific energy consumption of cutting of wood for each interaction. The results were submitted to analysis of variance and means compared by Tukey test at 5% significance level. More speeds cutting, lower speeds feed, circular saw with 40 teeth and clone MN 463 consumed greater amount of specific energy.

Novas tecnologias empregadas no corte da madeira de Eucalyptus sp. para o processo de carbonizaÃÃo contÃnua requerem cuidados. A escolha do tipo de ferramenta e das velocidades de corte e de avanÃo influenciam na reduÃÃo do tempo e do custo com a energia durante o processamento, otimizando sua produÃÃo. Objetivou-se verificar a influÃncia dos parÃmetros de usinagem no gasto de energia especÃfica de corte da madeira dos clones de Eucalyptus sp., MN 463 e VM 01, da Empresa V&M Florestal. Os ensaios foram desenvolvidos no LaboratÃrio de Usinagem da Madeira do Departamento de CiÃncias Florestais da Universidade Federal de Lavras (DCF/UFLA). Foram utilizadas toras, de 1,70 m de comprimento com menos de 30 dias de abate, consideradas de verdes, e com mais de 90 dias, consideradas de secas. O delineamento experimental utilizado foi fatorial 3 x 3 x 4 x 2 (velocidade de corte x velocidade de avanÃo x nÃmero de dentes x umidade) e 3 x 3 x 4 x 1 para o MN 463 e VM 01, respectivamente. Avaliou-se o consumo de energia especÃfica de corte da madeira para cada interaÃÃo. Os resultados obtidos foram submetidos à anÃlise de variÃncia e as mÃdias comparadas pelo teste de Tukey a 5% de significÃncia. Maiores velocidades de corte, menores velocidades de avanÃo, serra circular de 40 dentes e o clone MN 463 consumiram maior quantidade de energia especÃfica.

Advisors/Committee Members: Josà TarcÃsio Lima, AntÃnio Carlos NÃri, Josà Reinaldo Moreira da Silva, TÃlio Jardim Raad, Alfredo Napoli.

Subjects/Keywords: madeira roliÃa; eucalytus; corte transversal; cutting efficiency; round wood; eucalyptus; crosscut; eficiÃncia de corte; TRATAMENTO DA MADEIRA

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Souza, E. M. d. (2009). nfluence of the woodworkability parameters of Eucalyptus sp. wood in specific energy consumption for cutting in circular saw. (Thesis). UNIVERSIDADE FEDERAL DE LAVRAS. Retrieved from http://bdtd.ufla.br//tde_busca/arquivo.php?codArquivo=2720

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Souza, Erica Moraes de. “nfluence of the woodworkability parameters of Eucalyptus sp. wood in specific energy consumption for cutting in circular saw.” 2009. Thesis, UNIVERSIDADE FEDERAL DE LAVRAS. Accessed November 26, 2020. http://bdtd.ufla.br//tde_busca/arquivo.php?codArquivo=2720.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Souza, Erica Moraes de. “nfluence of the woodworkability parameters of Eucalyptus sp. wood in specific energy consumption for cutting in circular saw.” 2009. Web. 26 Nov 2020.

Vancouver:

Souza EMd. nfluence of the woodworkability parameters of Eucalyptus sp. wood in specific energy consumption for cutting in circular saw. [Internet] [Thesis]. UNIVERSIDADE FEDERAL DE LAVRAS; 2009. [cited 2020 Nov 26]. Available from: http://bdtd.ufla.br//tde_busca/arquivo.php?codArquivo=2720.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Souza EMd. nfluence of the woodworkability parameters of Eucalyptus sp. wood in specific energy consumption for cutting in circular saw. [Thesis]. UNIVERSIDADE FEDERAL DE LAVRAS; 2009. Available from: http://bdtd.ufla.br//tde_busca/arquivo.php?codArquivo=2720

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


University of Canterbury

2. Satchell, Stuart Dean. Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury.

Degree: Master of Forestry Science, Forestry, 2015, University of Canterbury

This case study investigated profitability of a small stand of fast-grown Eucalyptus nitens in Canterbury for sawn timber production. This stand was pruned and thinned and then harvested at 15 years old. An estimate of per-hectare log yields and diameters was made from the stand. Sample logs were sawn, dried and profiled, then products quantified. Log prices were estimated using the residual value method. Prices were summed for sawn products from each log, from which processing expenses and sawmill profit were deducted for an estimate of log value. In the absence of market prices for sawn E. nitens products empirical estimates of price were derived from market survey data. Predictive models were produced from estimated stand log yields along with predicted product revenues and processing costs from sample logs. These were used for estimating per-hectare log residual values from the case study stand trees. Financial returns to the grower were then calculated as discounted cash flows from the estimated log residual values per hectare, taking into account grower costs along with harvesting and transport costs. Best-practice processing methods were identified from the literature and applied as a productivity benchmark. Methods were developed with the view to standardising data across research efforts that seek to improve grade recoveries for E. nitens. A range of factors were investigated that potentially influenced E. nitens log residual value in this case study, including log diameter and log position. Outcomes included a reasonably favourable return on investment for the grower. However, this depended on a number of factors such as land price, distance from processor, product prices, grading methods, drying methods and level of sawmill profit. The application of contemporary best practice small-scale processing methods indicates that E. nitens has potential as a profitable plantation species for solid timber production.

Subjects/Keywords: Eucalytus; nitens; solid timber; sawn; products; profitability; degrade; residual value; return on investment; economics; case study; flooring; processing; checking; collapse; log position; prices; grading; value; solid timber production

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Satchell, S. D. (2015). Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury. (Masters Thesis). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/1396

Chicago Manual of Style (16th Edition):

Satchell, Stuart Dean. “Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury.” 2015. Masters Thesis, University of Canterbury. Accessed November 26, 2020. http://dx.doi.org/10.26021/1396.

MLA Handbook (7th Edition):

Satchell, Stuart Dean. “Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury.” 2015. Web. 26 Nov 2020.

Vancouver:

Satchell SD. Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury. [Internet] [Masters thesis]. University of Canterbury; 2015. [cited 2020 Nov 26]. Available from: http://dx.doi.org/10.26021/1396.

Council of Science Editors:

Satchell SD. Evaluating profitability of solid timber production from 15 year old pruned and thinned Eucalyptus nitens (Deane & Maiden) in Canterbury. [Masters Thesis]. University of Canterbury; 2015. Available from: http://dx.doi.org/10.26021/1396

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