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Sistema autônomo de sensoriamento remoto espaço-temporal do céu por imagens e sua aplicação em sistemas distribuídos de energia.
(Universidade Federal de Santa Maria, 2020-12-17)
Cloud cover instability is the main impact and uncertainty factor on the forecast of energy generated in photovoltaic systems. Establishing reliable metrics for large-scale photovoltaic (PV) power forecasting models while ...
Metodologia para análise de impactos associados a elevada inserção de microgeração fotovoltaica em redes secundárias de distribuição
(Universidade Federal de Santa Maria, 2020-09-28)
In recent years, there has been an exponential growth in the number of photovoltaic installations, mainly in secondary distribution systems, as a result of the beginning of the modernization of the electricity sector, based ...
Desenvolvimento de uma ferramenta para previsão de curto prazo da geração de energia fotovoltaica
(Universidade Federal de Santa Maria, 2021-05-12)
The dissemination of photovoltaic systems in the distribution of electricity, as a complement to the large centralized generating units, motivates research related to the forecast of the hourly capacity for distributed ...
Multiplicação sincronizada da frequência de geradores elétricos acionados por fontes primárias com fluxos de baixa velocidade
(Universidade Federal de Santa Maria, 2020-09-30)
This dissertation proposes a way to increase the frequency of electric machines driven by alternative sources with low speed of the driving fluid, such as wind and water. This work presents a technique for multiplying ...
Empreendedorismo e crescimento econômico: uma avaliação da performance econômica dos países participantes do Global Entrepreneurship Monitor (GEM)
(Universidade Federal de Santa Maria, 2013-08-07)
This study aims to analyze the performance of entrepreneurial activity in countries participating in the Global Entrepreneurship Monitor (GEM), by the use of multivariate quantitative methods, in order to generate new ...
Análise da tensão de restabelecimento transitória em disjuntor de alta tensão: estudo de caso em uma instalação elétrica industrial
(Universidade Federal de Santa Maria, 2021-06-29)
The electrical system is subject to several types of failure occurrences, short circuits and abnormal operating
conditions, thus producing transients in the network. For these reasons, it is essential that circuit ...
Estudo dos recalques do aterro sanitário da Central de Resíduos do Recreio Minas do Leão/RS
(Universidade Federal de Santa Maria, 2013-04-05)
The magnitude and long duration of settlements in municipal solid waste landfills are a major problem in these structures. Several studies and surveys have been developed in recent years to estimate future settlements, ...
Requisitos dinâmicos de controle para o estágio de conversão C.C.-C.C. aplicado em sistemas fotovoltaicos
(Universidade Federal de Santa Maria, 2020-11-26)
Photovoltaic systems (PVs), in their usual condition, are controlled to track the maximum power point (MPP) in a natural solar dynamic. However, with the cheapness of solar energy and its integration with the most diverse ...
Extração de óleo da polpa de abacate utilizando gás liquefeito de petróleo pressurizado e dióxido de carbono supercrítico como solventes
(Universidade Federal de Santa Maria, 2016-02-15)
In this work two differents solvents were used for extraction, carbon dioxide (CO2) in the supercritical state and pressurized liquefied petroleum gas (LPG). The purpose was to extract the oil from the dried avocado pulp ...
A certificação como fator indutor da melhoria da qualidade: o caso do selo ambiental do Instituto Rio Grandense do Arroz (IRGA)
(Universidade Federal de Santa Maria, 2013-04-26)
This work shows a research relating to certification as a factor of inducer quality, your
implications and benefits about agribusiness, with main object of study the IRGA
case of environmental seal. Considering the ...