Electricity
Mostrando 13-24 de 590 artigos, teses e dissertações.
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13. Integrated project of a smart microgrid allied with energy management: An initiative to reduce electrical energy costs
Abstract Electricity is undoubtedly one of the most important resources in the modern world. As the demand for electric energy increases, conventional resources that are transformed into electric energy are being exhausted, generating a need to search for alternative sources, resulting in a significant increase in energy costs. This study presents an integra
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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14. Technical and economic viability of the installation of a hybrid solar-wind generation system in a Brazilian industry
Abstract The demand for electricity is growing worldwide. At the same time, the non-renewable natural resources that account for a large proportion of the global energy matrix are rapidly depleting, which will pose a major challenge in the near future. Therefore, micro-grid models that use renewable energy sources, such as solar and wind, are rapidly develo
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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15. Converting a Conventional Vehicle into an Electric Vehicle (EV)
Abstract The electric vehicle (EV) is not a recent invention. Between the end of the XIX century and the beginning of the XX century, most motor vehicles were electric, due to their superior reliability and cleanliness, compared to that of vehicles driven by internal combustion engines (ICE). However, with the development of ICEs and the reduction of their p
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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16. Energy planning and management during battery manufacturing
Abstract The aim of this study is to improve energy performance at a battery factory in Colombia by introducing the energy management approach defined in ISO 50001. In the study, the main energy consumptions were identified in the battery formation, the compressed air system and the large electric motors. An energy review was performed in the factory using m
Gest. Prod.. Publicado em: 10/10/2019
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17. Impactos econômicos da ampliação do uso de energia solar residencial em Minas Gerais
Resumo Este artigo analisa os impactos econômicos de uma ampliação do uso de energia solar pelas famílias mineiras através do modelo de Equilíbrio Geral Computável (EGC) denominado Imagem-MG. Em contraste com outros trabalhos que utilizam essa metodologia para analisar questões energéticas, o presente trabalho se propôs a analisar os impactos distr
Nova econ.. Publicado em: 10/10/2019
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18. Eficiência energética: sistemas de iluminação com LEDs, distribuídos em corrente contínua e utilizando energia fotovoltaica
Resumo O cenário atual é marcado por uma crescente necessidade de energia, esgotamento de recursos naturais e pela necessidade de se aumentar os cuidados com o consumo de energia do setor elétrico. Com o crescimento da demanda por energia, torna-se essencial a obtenção de maior eficiência energética. Para tal é fundamental não somente buscar soluç�
Ambient. constr.. Publicado em: 03/10/2019
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19. Impact of the inclusion of variable CO2 cost in the distribution network design
Abstract Paper aims This study aims to evaluate the economic-financial impact that the inclusion of environmental variable CO2 cost attributed to transportation (fuel consumption) and manufacturing activities (electricity consumption) represents in a distribution network optimization design. Originality This is the first work carried out in Brazil to prese
Prod.. Publicado em: 23/09/2019
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20. The effects of financial leverage and debt maturity on the investments of Brazilian electric sector companies
Resumo Objetivo: Este trabalho teve como objetivo averiguar como as empresas do setor de energia elétrica realizam a escolha do nível de alavancagem financeira e maturidade das dívidas, com o intuito de amenizar o problema de subinvestimento. Metodologia: Foi aplicada a técnica de regressão linear múltipla em um modelo de painel dinâmico para verifi
Rev. bras. gest. neg.. Publicado em: 23/09/2019
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21. Soil chemical attributes and energetic potential of agricultural residual biomasses provided by 23-year soil management
ABSTRACT Residual biomass from grains has potential as an energetic source. Biomass composition determines this potential and is related to plant nutrition, which may vary according to soil fertility. The aim of this 23-year field study was to evaluate changes in chemical attributes of a Brazilian Oxisol and in the energetic potential of oat (Avena sativa L.
Bragantia. Publicado em: 29/08/2019
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22. ASSESSING COMPETITION IN BRAZIL’S ELECTRICITY MARKET IF BID-BASED DISPATCH WERE ADOPTED
RESUMO Simuladores de mercado, considerando características estruturais, são ferramentas úteis para a realização de análise concorrencial ex-ante de mudanças fundamentais no mercado, tais como: liberalização de mercado, fusões e aquisições, desinvestimentos e reformas regulatórias. Nesse artigo, simulações Cournot-Nash são utilizadas para ava
Rev. econ. contemp.. Publicado em: 26/08/2019
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23. Energy and budget balances for sweet potato-based ethanol production
Resumo: O objetivo deste trabalho foi avaliar a viabilidade da batata-doce (Ipomoea batatas) para produção de etanol, bem como estimar os balanços energético e econômico para a cultura. Foram avaliados dados das fases agrícola e industrial de produção. Os da fase agrícola foram estimados a partir de experimento conduzido em campo e usados para compa
Pesq. agropec. bras.. Publicado em: 19/08/2019
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24. DECREASE IN OFF-PEAK ELECTRICAL ENERGY DEMAND BY AGROINDUSTRIES DUE TO PHOTOVOLTAIC SOLAR GENERATION
ABSTRACT The largest energy losses and voltage variations from electricity suppliers occur at times of peak demand. Daytime peaks are mainly influenced by large industrial and commercial consumers. The installation of photovoltaic systems without energy storage to supply part of the demand can contribute to stabilize the voltage and reduce losses. These and
Eng. Agríc.. Publicado em: 12/08/2019