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Potencialidades e desafios da utilização de biogás para transporte e geração de energia
(Universidade Federal de Santa Maria, 2019-07-19)
In the current conjuncture where environmental sustainability has become a global concern - essential for the survival of market companies - the search for energy generation to replaces traditional sources for sustainable ...
Análise termodinâmica e reprojeto de um motor a vapor
(Universidade Federal de Santa Maria, 2019-05-08)
In 1712, Thomas Newcomen developed an atmospheric, low energy-efficient steam engine, which was enhanced by James Watt in 1769, which improved efficiency by separating the piston from the condenser engine. Currently, the ...
Investigação das propriedades mecânicas da liga ferro-fósforo porosa
(Universidade Federal de Santa Maria, 2019-07-16)
The present work aimed to produce and test porous samples of a porous ferro-phosphor alloy through powder metallurgy. Three samples with different material percentages and different production processes were analyzed. ...
Trabalho, gênero e saúde: uma etnografia sobre agricultoras e agricultores feirantes de Camobi (RS, Brasil)
(Universidade Federal de Santa Maria, 2019-12-17)
The aim of this article is to analyze health and body practices among farmers and consumers of “Feirinha Camobi”, located in Santa Maria, Rio Grande do Sul. The study was developed through ethnographic research conducted ...
Projeto de um inversor monofásico de 2KVA com ênfase no aumento da densidade de potência
(Universidade Federal de Santa Maria, 2019-12-10)
The pursuit of volume reduction and increased drive efficiency is a trend for future projects due to the advancement of technologies used in semiconductor power devices, mainly related to their speed and efficiency. Thus, ...
Desenvolvimento de um nodo sensor com o microcontrolador ZR16S08
(Universidade Federal de Santa Maria, 2019-12-09)
The Internet of Things brings users the in
tegration between physical devices composed
of electronic circuits, sensors and internet connected actuators thus generating the Wireless
Sensor Network, so that the control ...
Metodologia para controle de reguladores de tensão em redes elétricas de distribuição utilizando simulação digital em tempo real
(Universidade Federal de Santa Maria, 2019-07-03)
Throughout its transportation, from generation to final consumption, the electrical energy fluctuates its voltage levels. These variations are natural and provided by the system itself, but without effective corrections, ...
Análise térmica de radiadores de transformadores elétricos utilizando o método de elementos finitos
(Universidade Federal de Santa Maria, 2019-07-10)
As any other electric equipment, transformers have efficiency lower than 100%. The “lost” energy is dissipated as heat in the active part of the machine and later this heat must be transferred to the outside environment, ...
Análise de minigeração solar fotovoltaica na Universidade Federal de Santa Maria
(2019-07-12)
The following work presents an analysis on the impact and the financial performance of the Solar Photovoltaic Minigeration at the Federal University of Santa Maria, customer of group A4, considering the tariff and regulatory ...
Abordagem no domínio do tempo de um conversor ressonante auto-oscilante
(Universidade Federal de Santa Maria, 2019-07-11)
This work presents a time domain study of the self-oscillating resonant converter, using state space representation to find the solutions of the initial conditions. After reviewing the literature, which aimed to evaluate ...