Buscar
Itens para a visualização no momento 151-160 of 3379
Redução de micropoluentes por sistema de tanque séptico e wetland construído vertical com recirculação
(Universidade Federal de Santa Maria, 2018-09-17)
Constructed wetlands are well-established systems known worldwide for the treatment of domestic effluents. In Brazil they are still little used, and in-depth studies are needed on the removal of carbonaceous and nitrogenous ...
Sistema de comunicação e controle para múltiplos conversores aplicados em transformador de estado sólido
(Universidade Federal de Santa Maria, 2017-09-05)
This PhD Dissertation proposes a communication and control structure for multiple
converters systems, with emphasis on modular structures applied in solid state transformers
(SST) with three power stages. The SST under ...
Estudo da rigidez, da deformação permanente e da fadiga de misturas asfálticas com ligantes convencionais e modificados
(Universidade Federal de Santa Maria, 2018-11-22)
In Brazil, there are two most recurrent defects found on highways: permanent deformation and cracking due to fatigue. Among the most varied causes, the formation and propagation of cracks in the asphalt coating occurs as ...
Estimativa da produção de energia solar fotovoltaica com base em modelos meteorológicos
(Universidade Federal de Santa Maria, 2018-08-23)
Photovoltaic energy had an exponential growth in the last few years in Brazil and soon it
should become an important source of energy in the Brazilian electrical system. Unlike
other sources, it is not possible to control ...
Determinação de arranjos regulatórios e econômicos para viabilizar investimentos em sistemas de armazenamento de energia em redes de distribuição de energia elétrica
(Universidade Federal de Santa Maria, 2018-12-17)
In this work, it is presented a methodology for analyzing the insertion of energy
storage systems in electric energy distribution networks. This methodology consists
of modeling the current regulatory policy with its ...
Inversores fotovoltaicos trifásicos não isolados conectados à rede com técnicas para redução da corrente de fuga
(Universidade Federal de Santa Maria, 2018-12-18)
This doctoral dissertation presents contributions related to transformerless grid-connected
three-phase photovoltaic systems, focusing on the leakage current reduction. Among the
leakage current reduction techniques, the ...
Projeto e implementação de uma lâmpada led bulbo em conformidade com aspectos elétricos, térmicos e ópticos exigidos pelas normativas brasileiras
(Universidade Federal de Santa Maria, 2018-08-31)
This work presents an LED bulb lamp conception aiming to replace traditional lighting technologies such as incandescent and compact fluorescent lamps. The LED lamp manufacture and sale requirements based on INMETRO Ordinance ...
Desenvolvimento de material de isolamento térmico compósito à base de sabugo de milho
(Universidade Federal de Santa Maria, 2019-01-17)
One of the most important challenges for the construction industry is the reduction of environmental impacts at all stages of the life cycle. Among the possible guidelines for reducing environmental impacts is the use of ...
Microgeração residencial: um estudo de caso para um sistema fotovoltaico em Belo Horizonte – MG
(Universidade Federal de Santa Maria, 2017-11-11)
The production of electricity through small-scale facilities, known as microgeneration,
presents a strong potential for the reduction of the current energy bill and, at the
same time, contributes to the reduction of gases ...
Arquitetura colonial sobre a ótica da eficiência energética: o caso do Museu Regional de Caeté
(Universidade Federal de Santa Maria, 2017-08-05)
This work presents a study of the energy efficiency of the Regional’s Caeté Museum, a public museum of colonial architectural typology, evaluated based on the Technical Regulation of the Quality of Energy Efficiency of ...