Electric Power Economy
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Introdução de misturas de GNV e hidrogênio (Hidrano) em veículos convencionais no Brasil e seus impactos econômicos, ambientais e energéticos / Introduction of CNG and hydrogen (HCNG) for conventional vehicles and its economic, environmental and energy impacts
Several strategies have been proposed to introduce hydrogen in the economy specifically in the transport sector in order to reduce environmental impacts of conventional fuels. One of the strategies implies in adding hydrogen to compressed natural gas (HCNG), making use of the existing refueling stations and natural gas fleet. Thus the costs and time for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
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2. Desenvolvimento de um método para levantamento de tecnologias de materiais empregados no trem de força automotivo (powertrain) a partir de patentes / Devolopment of a patent based method for surveying materials technologies used in automotive powertrain
This research approaches the study from patents of technologies for materials used in power train of motor vehicles, to provide additional information in order to support decision making in this universe, especially in the selection of materials and their processing. The powertrain is currently the most important subsystem in a car, being appointed as chief
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/05/2012
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3. Identificação dos fatores críticos da colheita mecanizada de cana-de-açúcar (Saccharum spp.) / The identification of the critical factors of sugarcane (Saccharum spp.) mechanized harvesting
The sugar cane has significant role on Brazilian agribusiness economy. Its sub products are used for electric power generation, fuel production, as raw material for food and chemical industry. On sugarcane production, harvesting is considered as one of the most important operations of the process for it has to attend the raw material demanded by the sugar mi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/10/2011
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4. Usuários de habitação de interesse social e adoção de sistemas de aquecimento solar de água - estudo de caso em Londrina-PR
This research is dedicated to investigate the reasons why the solar water heating systems are not used in large scale on low-income housing in Brazil. There is a global tendency to reduce dependence on fossil energy resources, however, the influence and economic ruling of oligopolies that holds the end-use traditional energy costs demonstrate the vulnerabili
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2010
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5. Energy policy and regional inequalities in the Brazilian economy / Política energética e desigualdades regionais na economia brasileira
The objective of this dissertation is to evaluate the long-run regional impacts of tariff policy of the Brazilian electric power sector. The structural reforms carried on this sector determined the emergence of two different spatial distribution trends of the electric power tariffs among the Brazilian states: one of convergence and another of spatial diverge
Publicado em: 2010
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6. Initial public offering-ipo x retorno : uma investigação empírica nas empresas do setor de energia elétrica
This research has as objective evaluates the return of the stocks of the companies of the Brazilian electric section, striped in BOVESPA. In that sense, it was looked for to verify the accomplishment of IPO it caused over evaluation effect or of under evaluation in the price of the stocks of the companies of the electric power section that it accomplished th
Publicado em: 2009
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7. Arranjos institucionais e investimento em infra-estrutura no Brasil / Infrastructure investment in Brazil
This work follows the investment evolution in the infrastructure sector since the 60s. The investigated series are subjected to econometric tests proposed by Bai and Perron (1998, 2003b) that, ultimately, seek to identify possible structural breaks and try to link them to institutional changes. The follow segments were: road, rail, electric power and telecom
Publicado em: 2009
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8. Estudo sobre conservação de energia eletrica e qualidade de energia eletrica / Study about energy economy and power quality
Este trabalho trata de dois temas de grande relevância, principalmente nos últimos anos, na área de energia elétrica: a conservação e a qualidade da energia elétrica. Os estudos são baseados em dados de grandezas elétricas coletados por equipamentos de monitoração e gerenciamento de energia instalados em pontos distintos do Campus da Universidade
Publicado em: 2009
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9. Determinantes de longo prazo do produto e da produtividade total dos fatores da agropecuária brasileira: 1974-2005 / Product and total factor productivity determinants of Brazilian agriculture, in the long run: 1974-2005
The agricultural sector is one of the most important in the Brazilian economy. In addition to the dynamism responsible for important chain effects on other sectors activities, it also contributes to obtain expressive positive credit balances in the recently verified commercial balance, and consequently to generate foreign exchange credits, essential for main
Publicado em: 2009
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10. Analysis of participation of energy self producers and independent producers in the Brazilian electric sector. / Análise da participação dos autoprodutores e produtores independentes de energia no setor elétrico brasileiro.
Historically, the electric power supply in Brazil has a role that stands out in the domestic economic growth, due to its capacity to add revenue through the promotion to large-sized industries. Its strong association in the composition of the domestic revenue is of general concern of all individuals involved and interested in the power supply in Brazil, whic
Publicado em: 2008
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11. Combat, prevention and optimization of non technical losses of electric power distribution. / Combate, prevenção e otimização das perdas comerciais de energia elétrica.
As perdas de energia elétrica devidas a furtos e fraudes, também chamadas de Perdas Não-Técnicas (PNT) ou Perdas Comerciais, têm sido matéria prioritária das empresas concessionárias de distribuição de energia elétrica, bem como dos órgãos reguladores, tanto pelo seu crescimento nos últimos anos quanto pelo seu impacto no sistema elétrico bras
Publicado em: 2008
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12. Avaliação da disponibilidade energética em atividade física realizada em bicicleta estacionária
Nowadays, the search of better life quality is related, invariably, to the developed practice of physical activity mainly at gyms. Although in these places, there is considerable expenditure of human energy, they are not characterized as an energy management model that can reflect in considerable economy in monthly electric energy consumption. The conception
Publicado em: 2008