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Uso de microalgas para adsorção do corante rodamina B empregado na indústria de tingimento de ágata
(Universidade Federal de Santa Maria, 2018-09-03)
Rhodamine B (RhB) has been widely used in dyeing of semiprecious stones (agate), which are exported from the Southern Brazil, and in this dyeing process, colored effluents are generated. Then, the objective of this work ...
Sistema de projetos otimizados de conversores estáticos (POCE) usando algoritmos genéticos
(Universidade Federal de Santa Maria, 2017-03-27)
Nowadays, there is a growing need for rational and efficient use of energy generated, be it traditional or renewable sources. Power electronics performs the interface between generation and consumption, allowing explore ...
Inversores fotovoltaicos conectados à rede com armazenamento de energia – classificação, recomendações técnicas e gerenciamento
(Universidade Federal de Santa Maria, 2017-03-08)
Grid-connected photovoltaic systems with energy storage have features of conventional gridconnected
inverters and uninterruptible power supplies. In these systems, all elements, which
include photovoltaic generator, ...
Sistema neural artificial para identificação de perdas não técnica em consumidores rurais
(Universidade Federal de Santa Maria, 2018-12-19)
Non-technical losses have a significant impact on power distribution networks, and they are among the major concerns of the agents involved in power systems. Particularly in rural distribution networks, consumers with crop ...
Metodologia de projeto do conversor DAB aplicado a transformadores de estado sólido
(Universidade Federal de Santa Maria, 2014-08-01)
This thesis presents a design methodology for the dual active bridge converter, that includes the influence of the nominal phase-shift angle in the behavior of the DAB converter for entire power and voltage ranges. The ...
Aglomerantes a base de cimento, cinza de lodo de ETA e calcário: influência na hidratação, resistência à compressão e estrutura de poros
(Universidade Federal de Santa Maria, 2018-11-30)
Increases in population and consequent increases in the volume of treated water
have increased the amount of sludge produced in water treatment plants (WTPs),
which can introduce risks to the environment when its final ...
Roteamento geográfico para redes de sensores e atuadores sem fio em redes urbanas de comunicação
(Universidade Federal de Santa Maria, 2012-05-25)
Smart grids and smart utility networks are the next-generation utility networks that
intend to provide efficient control and management of utilities such as electricity, natural
gas, water and sewage. Communication ...
Pesquisa sobre o efeito de fenômenos solares no potencial energético solar-eólico
(Universidade Federal de Santa Maria, 2015-09-11)
This thesis analyzes the monthly data from historical series of the heat stroke
cycles, solar radiation and average wind speeds in the 1961 and 2008 period to
identify long-term inaccuracies in the location of both wind ...
Controle adaptativo robusto combinado com regulador linear quadr atico aplicado a condicionadores de energia
(Universidade Federal de Santa Maria, 2014-09-05)
This work proposes an algorithm that combines two control laws with di erent
compensation characteristics in order to obtain a robust and high performance control:
A Linear Quadratic Regulator aided by a Kalman lter or ...
Microinversores baseados na topologia meia-ponte isolada alimentada em corrente
(Universidade Federal de Santa Maria, 2018-07-25)
The Microinverter is an inverter sized to meet individual solar panels, usually consisting of two stages, one DC-DC stage and another CC-AC stage. For the first stage of the DC link microinverter, the isolated current-fed ...