Energy Purchase
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Production and physicochemical characterization of craft beer with ginger (Zingiber officinale)
Abstract This work aims to produce and to characterize physical-chemically an added craft beer of ginger, as well as its sensorial attributes, due to the new demand for products with innovative flavors. The traditional method of production of beer craft type Pilsen was used, with addition of 2 g L-1 of ginger chips in the maturation stage. The final product
Food Sci. Technol. Publicado em: 11/04/2019
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2. Tucupi creamy paste: development, sensory evaluation and rheological characterization
Abstract Tucupi, a fermented product obtained from cassava (Manihot esculenta Crantz) is widely employed in the cuisine of the Northern region of Brazil, however, its industrial application is incipient. This study used tucupi to prepare a creamy paste, which underwent sensory and rheological evaluation. Paste formulations with 5 to 20% concentrated tucupi w
Food Sci. Technol. Publicado em: 31/07/2017
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3. Physicochemical, microbiological and sensory evaluation of a bioactive food blend
The potential of functional foods to decrease the risks of chronic non-communicable diseases has motivated the development of products with beneficial effects on fat and carbohydrate metabolism. The present study aimed at analyzing the physicochemical, microbiological, and sensory properties of a bioactive food blend developed to help the nutritional therapy
Food Sci. Technol. Publicado em: 2014-09
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4. Otimização na compra de energia elétrica oriunda de usinas hidrelétricas e eólicas no ambiente de contratação livre, utilizando um modelo de programação dinâmica. / Optimization in the purchase of electricity coming from hydroelectric and wind in the free market, using a dynamic programming model.
Este trabalho se propõe a implementar um modelo de Programação Dinâmica com o objetivo de determinar uma política ótima de contratação de energia por consumidores livres. O conceito de consumidor livre foi criado em 1995 com a reestruturação do setor elétrico brasileiro, sendo caracterizado pela livre negociação de preço, volume e prazo de sua
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/08/2011
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5. 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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6. Study of a cooling system with air forced with monitoring of electrical energy consumption / Estudo de um sistema de resfriamento com ar forçado com monitoramento do consumo de energia eletrica
This work is a study of a classical controller implementation using tuning method referred to as IMC (Internal Model Control), aimed at reducing electrical energy consumption that proceed the appropriate relation between this consumption and cooling time of the cooling process with forced air. For this, the supervisory system installed is able to manipulate
Publicado em: 2010
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7. Simulação de espectros do radical C2* para estudos de combustão / Simulation of C2* radical spectra for combustion studies
The diagnostics of particular species in combustion processes is the key for the development of combustion devices, such as burners, chambers, etc. and also to the understanding of these processes through the study of chemical reaction mechanisms with the aid of mathematical models. One of the diagnostic techniques employed with great success is the emission
Publicado em: 2009
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8. Brazilian electrical energy market: costumersâ decision criteria to move to the wholesale market; / O mercado brasileiro de energia elÃtrica: critÃrios de decisÃo na migraÃÃo de consumidores para o ambiente de contrataÃÃo livre
Nowadays the Brazilian electrical sector allows competition over the electricity market. Introducing competition wherever possible and maintaining regulation whenever necessary was the objective of the Federal Government. Due to this reason, the generation and commercialization sectors become competitors. Costumers and other companies can choose where to pur
Publicado em: 2008
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9. Precificação de contratoas inflexiveis de energia eletrica : rentabilidade e impacto de encargos e tibutos / Pricing electricity inflexible contracts : profitability and impact of charges and taxes
This dissertation addresses the pricing of electrical energy contracts in the Brazilian market, a topic whose difficulty stems mainly because it is a very recent market without a long historic of prices. It offers a contribution situated in two points: the pricing of purchase and sell contracts of inflexible electrical energy (options and forwards) in the Fr
Publicado em: 2008
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10. Model to alocate the assured energy of hydro power plants using genetic algorithms. / Modelo de sazonalização da energia assegurada de usinas hidrelétricas utilizando algoritmos genéticos.
The operating revenue of power generation companies has two different components: revenues arising from power purchase agreements and from spot market, managed by the Câmara de Comercialização de Energia - CCEE The income of contracts is predictable, but there are a lot of difficulties to do prognosis with the spot market revenue component, because it dep
Publicado em: 2008
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11. Metodologia para representação detalhada dos custos de aquisição de energia e repasses tarifários no fluxo de caixa das empresas distribuidoras: um enfoque probabilístico. / Methodology for detailed representation of energy purchase cost and tariff pass through in the distribution companies cash flow: a probabilistic approach.
O gerenciamento dos custos com a compra de energia elétrica para atendimento do mercado consumidor é um assunto que assumiu, nos últimos anos, papel relevante nas distribuidoras. Este fenômeno pode ser explicado pela crescente participação dos custos de energia comprada, para suprimento do mercado cativo, no desempenho operacional dessas empresas, bem
Publicado em: 2008
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12. Biodiesel no Estado da Bahia: potencialidades, entraves e ações indutoras / Biodiesel in state of Bahia: potential, barriers and inducing actions
The shortage of oil, the national energy security, global warming and the rising of food prices and consumption are current problems in mankind. Issues related to alternative energy sources are gaining great importance and prominence in political and economic scenario. At a time when biofuels are internationally in evidence, it is essential to debate on this
Publicado em: 2008