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Otimização na produção de biodiesel de óleo de palma utilizando a metodologia d...
Silva, Flávio Castro da; Guardiola, Juan Fernando Herrea; Teixeira, Luciana Pinto; Maria, Ana Caroline Lopes; de Souza, Luan Alves; Belém, André LuizO objetivo deste trabalho foi analisar a produção de biodiesel de óleo de palma em diferentes condições e verificar as relações entre variáveis de produção para otimizar a produção de biocombustíveis usando a metodologia da superfície de resposta (response surface methodology – RSM). O biodiesel foi produzido através do processo de transesterificação via rota metílica e com catalisador ...
PRODUÇÃO E CARACTERIZAÇÃO DE BIODIESEL PRODUZIDO COM ÓLEOS UNITÁRIOS E MISTURAS...
Gonçalves, Mariana Delgado; Silva, Flávio Castro da; Lopes Maria, Ana Caroline; Souza, Luan Alves de; Oliveira, Pamella Christina Ortega deNeste trabalho, realizaram-se a produção e a caracterização do biodiesel comóleos unitários e misturas binárias. As amostras foram caracterizadas segundoas resoluções da Agência Nacional do Petróleo, Gás Natural e Biocombustíveis(ANP) e com base nas técnicas de ressonância magnética nuclear (RMN ¹H)e por cromatografia gasosa (CG). Todos os biodieseis produzidos possuemmassa específica e viscosidade cinemática e...
Multicriteria analysis model in the evaluation of different crops for biodiesel...
Guardiola, Juan Fernando Herrera; Lopes, Rafaela Ferreira; Mello, João Carlos Correa Baptista Soares de; Silva, Flávio Castro daMacbeth model is a multicriteria tool for the multicriteria decision making that has been used in different projects and studies of renewable energies. The purpose of this paper was apply the software Macbeth for the evaluation of canola, corn, palm and soy crops taking in to account technician, environmental and economic criterias and their weights. Canola crop was the best option for the biodiesel production,...
Comparison between the soil chemical atributes sampled conventionaly and in grid
Ferraz, Gabriel Araújo e Silva; Silva, Fábio Moreira da; Oliveira, Marcelo Silva de; Silva, Flávio Castro da; Carvalho, Luis Carlos CiriloThe aim in this article was to characterize the structure and magnitude of the spatial distribution of soil attributes on a coffee field and map these attributes in order to identify the spatial dependence of them. It was aimed to compare the attribute amount when it was sampled conventionally or in grid sampling. This study was carried out on the Brejão farm in Três Pontas, Minas Gerais state, Brazil. As a dat...
Doses of noise to whom are subject operators portable harvester coffee
Sales, Ronan Souza; Silva, Fábio Moreira da; Silva, Flávio Castro daThe harvest of coffee (Coffea arabica L.) is a costly process that demands high cost labor , increasingly scarce and the mechanization process a way for the farmer to remain in the activity . The objective of this study was to analyze the noise dose to which they are exposed operators portable harvester. The experiment was carried out in a coffee plantation of Catuaí Amarelo 62. For the experiment we used two p...
Evaluation of a variable rate fertilizer application system adpted to coffee crop
de Barros, Murilo Machado; Volpato, Carlos Eduardo Silva; Silva, Flávio Castro da; Palma, Marcos Antônio Zambillo; Spagnolo, Roger ToscanAn extremely important factor in the production of coffee and other crops is the distribution of fertilizers on the soil, because the efficient use of this technique may increase productivity, reduces production costs and environmental impacts. Precision Agriculture is an important tool to be used, that aids the achievement of localized and rational application of fertilizers, increasing the management activiti...
Spatial variability of soil physical attributes and agronomic characteristics o...
Carvalho, Luis Carlos Cirilo; Silva, Fábio Moreira da; Ferraz, Gabriel Araújo e Silva; Silva, Flávio Castro da; Stracieri, JulianaPrecision agriculture differs from the conventional by uniting spatial relationships to the variability in the field, becoming an important management tool of the agricultural systems. Thus, the present study aimed to evaluate, by classical statistics, geoestatistics and principles of precision agriculture, some physical attributes indicative of soil compaction, such as bulk density, soil penetration resistance...
Operational and economic performance of coffee harvest using lateral harvesters
Silva, Fábio Moreira da; Oliveira, Ezequiel de; Guimarães, Rubens José; Figueiredo, Carlos Augusto Pereira de; Silva, Flávio Castro daCoffee harvest (Coffea arabica L.) is an expensive process that demands high costs with labor, increasingly scarce in its various stages: cleaning under coffee tree canopy, harvest, sweeping , gathering, fanning and transport. Harvesting is the removal of grains from the plant, a stage where mechanization augment constantly. Mechanical harvesting does not remove all grains from the plant and a complementary han...