Photovoltaic System
Mostrando 25-36 de 72 artigos, teses e dissertações.
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25. Effects of the Photovoltaic Distributed Generation on Electricity Distribution System Voltage - Updated Review
ABSTRACT Concerns about the environment and a growing demand for electricity have led to the intensive search for renewable energy sources. Photovoltaic solar energy, in the form of distributed generation, has shown a very high growth rate to an extent that in some regions it will be adopted on a large scale, thus being responsible for the supply of a signif
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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26. Assessment of the Potential Implementation of Solar Energy Generation in State Schools in Curitiba/PR
ABSTRACT Solar energy as a form of electric power generation is gaining ground in Brazil, being the subject of worldwide discussions on sustainability. The electric energy, a right of all citizens, represents a consumption of natural resources on a large scale. State schools in Paraná invested more than R$ 46 million to guarantee electricity and thus provid
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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27. Investigation on Solar PV generation and design of switched reluctance motor for Smart Agriculture actuation system
ABSTRACT This paper presents standalone solar photovoltaic (PV) powered fed actuation system employing a switched reluctance motor (SRM) particularly used in remote and rural areas. The converter efficiency is achieved by changing ON and OFF state of solar PV drive. An electronic commutation drives SRM drive with achieved by position hall sensor and encoder.
Braz. arch. biol. technol.. Publicado em: 08/10/2018
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28. Synthesis, DNA Interaction and Genotoxic Evaluation of a Photoactive Benzothiadiazole with Potential Application in Photovoltaic Paint
A new fluorophore containing 2,1,3-benzothiadiazole unit with alkylated tetrazole terminal groups as electron donors connected through a π-conjugated system of the type (D-π-A-π-D) was synthesized using the Sonogashira coupling reaction with good yields. The genotoxicity of the two intermediate compounds and the final product was evaluated in vitro in con
J. Braz. Chem. Soc.. Publicado em: 2018-07
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29. Design and Manufacture of a Solar-Powered Unmanned Aerial Vehicle for Civilian Surveillance Missions
ABSTRACT In order to promote the development of renewable energy and take advantage of the new technologies for the benefit of sustainability, both the design and the manufacture methodologies of an experimental solarpowered unmanned aerial vehicle for civilian surveillance applications are presented. Throughout the document, it is provided the historical pr
J. Aerosp. Technol. Manag.. Publicado em: 2016-12
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30. Microstructural and optical properties of CSS and CBD-CdS thin films for photovoltaic solar cells
This work compares the properties of CdS films deposited by CBD and CSS techniques. The influence of the deposition parameters on the properties of the films was investigated. The thickness of CBD films ranged from 80 to 100nm and was affected by the concentration of reactants in the solution. For CSS films, the thickness was controlled in the 100-300nm rang
Matéria (Rio J.). Publicado em: 2014-09
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31. Geração distribuída aplicada à edificações : edifícios de energia zero e o caso do laboratório de ensino da FEC-Unicamp / Distributed generation applied to buildings : net zero energy buildings and the case of the laboratory at FEC-Unicamp
Electricity consumption in Brazil increased 47% in the last decade, and it is estimated that it will increase 55.6% until 2020. Most of the electricity generated in the country is based on large hydroelectric dams, located away from the major cities. The planned expansion of the generation park to meet this increase in the demand is also based on this model,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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32. Qualificação de sistemas fotovoltaicos conectados à rede / Qualification of Grid-Connected Photovoltaic Systems
Este trabalho propõe um procedimento para qualificar sistemas fotovoltaicos conectados à rede, o qual possui dois focos principais: o comissionamento e a caracterização da produção de energia. Também resume alguns aspectos normativos relacionados aos sistemas fotovoltaicos, apresenta os principais parâmetros de desempenho utilizados para caracterizar
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2012
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33. Sistema Fotovoltaico de Pequeno Porte Interligado à Rede ElÃtrica / A Low Power, Grid-Connected Photovoltaic System
A necessidade de obter uma matriz energÃtica menos poluente e em harmonia com o meio ambiente à um tÃpico muito importante no sÃculo XXI. Este trabalho apresenta um conversor cc-ca de dois estÃgios para injetar a energia de um arranjo de painÃis fotovoltaicos à rede elÃtrica. O primeiro estÃgio à um conversor elevador, isolado, baseado na CÃlula d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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34. SISTEMA FOTOVOLTAICO AUTÔNOMO UTILIZANDO CONFIGURAÇÃO MULTI-STRING E INVERSOR MULTINÍVEL / STAND-ALONE PHOTOVOLTAIC SYSTEM USING MULTI-STRING CONFIGURATION AND MULTILEVEL INVERTER
O contínuo desenvolvimento econômico de diversos países e as emergentes questões ambientais (emissão de gases e efeito estufa), observados nas últimas décadas, forçaram uma intensa pesquisa em fontes renováveis de energia. Hidro, fotovoltaica (PV Photovoltaic) e eólica são as tecnologias mais exploradas devido as suas vantagens consideráveis, com
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/08/2011
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35. Modelagem e simulação de operação de um sistema autônomo de energia fotovoltaica em corrente contínua / Modeling and simulation of autonomous operation of a photovoltaic power system in continuous current
Com a crescente demanda de energia elétrica no país e com a preocupação cada vez maior com o meio ambiente, há necessidade de se investir em novas tecnologias que gerem o mínimo possível de impactos ao meio ambiente, sendo uma alternativa o uso de fontes renováveis de energia. Neste trabalho é apresentado um sistema de geração isolado de energia f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2011
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36. Avaliação do ciclo de vida de potenciais rotas de produção de hidrogênio: estudo dos sistemas de gaseificação da biomassa e de energia solar fotovoltaica / Life cycle assessment of hydrogen production routes: study of gaseification systems and photovoltaic solar power
In the present study, the energy and environmental performance of hydrogen potential routes biomass gasification systems by fixed bed and fluidized bed and the solar photovoltaic power plant were studied based on Life Cycle Assessment (LCA) methodology. After reviewing the literature and analytical procedures description, the results of life cycle assessment
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011