Eficiência econômica da produção de cana-de-açúcar de produtores independentes do Estado do Paraná

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Avaliação de sistemas de manejo do palhiço de cana-de- açúcar no campo e na indústria

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Análise dos programas públicos e privados para requalificação dos trabalhadores no corte da cana-de-açúcar da região dos Escritórios de Desenvolvimento Rural de Botucatu, Jaú e Avaré

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Efeito da aplicação de fitorreguladores em rizobactérias isoladas de diferentes variedades de cana-de-açúcar (Saccharum spp.), no município de Araras - SP

Pós-graduação em Ciências Biológicas (Microbiologia Aplicada) - IBRC

Cigarrinha-das-raízes na cana-de-açúcar e qualidade do açúcar produzido

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Concentração, integração horizontal e vertical das usinas canavieiras

Pós-graduação em Agronomia - FEIS

Avaliação técnica e econômica de sistemas de produção da cana-de-açúcar (Saccharum spp) convencional e orgânica na região oeste do Estado de São Paulo

Pós-graduação em Agronomia - FEIS

Mecanização do corte da cana-de-açúcar e desemprego: expectativas e desafios dos trabalhadores na região de catanduva/SP

Pós-graduação em Ciências Sociais - FFC

Avaliação dos aspectos hídricos relacionados ao desenvolvimento da cultura da cana-de-açúcar na Bacia São José dos Dourados

Pós-graduação em Engenharia Civil - FEIS

Controle estatístico de processo aplicado ao monitoramento de perdas na colheita mecanizada de cana-de-açúcar

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Uso de algoritmos genéticos na otimização do sistema de coleta do palhiço de cana-de-açúcar

The Brazilian government has convinced the world that ethanol deriving from sugar cane is a promissory means of sustainable fuel for vehicles. There is a great growth of ex vehicles , i.e, run both by ethanol and gasoline, due to competent automotive industries and e cient alcohol production technology. In 2009 and 2010 the ethanol production was 25.7 billion liters and 53.8% of sugar cane production was destined to alcohol production. Nevertheless, the sugar production also derived from sugar cane should increase in 2011. Brazil produced 33 million tons of sugar in the last harvest. With sugar cane on the rise production is arising new environmental problems. The harvest using mechanized cut besides improving the logistic transportation system leaves the generating residue in the eld. This residue is a mixture of straw, leavings and scrap of sugar cane named sugar cane crop residue and corresponds to 30% of biomass and can be burned and produce electricity by cogeneration. But the transport the sugar cane crop from the eld is expensive due costs involved in the transport system. This work aims to propose a formulation for the bales collecting problem from sugar cane eld to mill that minimize the costs involved in the transport system. The computational tests use the C++ language and an algorithm based on genetic algorithms techniques

Estudo das características fluidodinâmicas do bagaço de cana de açúcar para aplicações da gaseificação no setor sucroalcooleiro

In this work is studied the fluid dynamic characteristics of sugarcane bagasse for gasification applications and use of syngas in the sugarcane sector. This is an experimental work, which is initially performed the particle size separation of sugarcane bagasse particles, using appropriate equipment. Through the experiment is possible to determine the average diameter of particles pomace typical sugarcane mill. The equipment used for the grading sieve separation assembly consists of several dimensions, arranged vertically and which shows adequate for good separation from the pulp. Later, it makes immediate analysis for the determination of moisture, ash, volatile materials and fixed carbon. The study also determines the gross calorific value and allows analysis of densities of particles of sugar cane bagasse. Also studied the bagasse morphology using electron microscopes, where it was possible to visualize the geometry of the particles of bagasse. The use of Electronic Scanning Microscopy (SEM) provided better understand the morphology and particle size measured by using photography methods. Two methods for determining the sphericity of the particles were also used. The experiments carried out using appropriate standards and specific equations, allowing compare the present results with the values found by several researchers. Subsequently, fluid dynamic simulations were performed for the determination of porosity and minimum fluidization velocity theoretical. It follows that the sphericity and porosity of the bagasse particles influence the minimum fluidization velocity of biomass

Desempenho de leveduras obtidas em indústria de Mato Grosso do Sul na produção de etanol em mosto a base de cana de açúcar

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A descentralização político-administrativa no Brasil: um estudo sobre a disputa entre os municípios de Caiuá e Marabá Paulista pela Decasa Açúcar e Álcool a partir das escalas geográficas de análise

This work has as main objetive to analyze fiscal/tax collection of municipalities after the political-administrative decentralization in Brazil and its new role in this scenario, bringing up the competition for Decasa Sugar and Alcohol between the municipalities of Caiuá and Maraba Paulista in the context of expansion sugarcane cultivation in the Presidente Prudente Geographic Micro Region. The analysis has considered the geographic scales, in order to highlight the power relations on local/regional territory, determined by the Agroenergy Policy Guidelines in Brazil (2006-2011). The two municipalities have from the point of view economic dynamics, irrelevence, proven through the São Paulo Index of Social Responsibility (IPRS), maximizing the importance of the constitutional transfers, such as Participation Fund of Municipalities (FPM). Given this situation, we analyze the four taxes raised by the experts as the most impactful for municipal tax collection before the presence of sugarcane activity: the Territorial Urban Property Tax (IPTU), the Tax on Services of any Nature (ISSQN), the Tax Vehicles owned Motor (IPVA) and the Operations tax on the Circulation of Goods and on Transport Services Rendered Interstate and Intermunicipal (ICMS). It was verified, that only the ISSQN can be seen as an indicator increase in fiscal/tax collection before the presence sugarcane activity...

Análise estatística de parâmetros elétricos em usinas sucroalcoleiras do centro-oeste paulista

The industry of sugar cane has become an important contributor to the generation of electricity in Brazil. Currently there are 434 sugar and ethanol plants operating in the country, 23% of the total export electricity to the National Integrated System (SIN), the state of São Paulo has 182 plants and 30% of them export energy to the SIN. The objective of this study is to compare parameters of electrical efficiency in the sugar and alcohol industry. For the study, three plants localized in the midwest region of Sao Paulo state with great potential for production and exporting bioenergy were chosen. Five energy analyzers LANDYS + GYR SAGA were used for measure the electrical parameters. The variables studied were energy consumption (C) and power factor (PF). For the statistical analysis it was adopteda randomized block design in a factorial 3 5composed of three companies and five sectors of energy consumption,in which: reception(1), milling (2), boiler (3), supporting activities / juice treatment (4), and distillation (5), totaling 15 treatments. Each group comprised 192 repetitions (48 hours 4 measurements per hour). It was concluded that there is no interest for the plans to fix the FP and reach a value 0.92, which is considered the ideal power factor.This,because the plants generate their own energy and are not penalized. Regarding the energy consumed, all sectors had significant differences. When comparingsector to sector, the plant called USB showed no significant differences in sectors 1 and 3, and the plant USC, in sectors 1 and 4. Considering the production units of this sector and selling power this type of evaluation is essential to perform this analysis, since the analyzed sectors are most important in the production of sugar and ethanol, and analyze and monitor these parameters, use and consumption energy can provide a greater supply of energy to be commercialized.