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Itens para a visualização no momento 2011-2020 of 3386
Análise experimental dos parâmetros de combustão em um motor turboalimentado
(Universidade Federal de Santa Maria, 219-12-18)
Currently within the context of internal combustion engines, there are several challenges
to increase engine efficiency through new technologies and concepts in the automotive industry,
such as downsizing and turbocharging. ...
Medição de tensões residuais em juntas soldadas pelo processo de soldagem a arco elétrico com atmosfera gasosa (GMAW) utilizando ondas longitudinais criticamente refratadas (ondas LCR)
(Universidade Federal de Santa Maria, 2019-12-13)
Welding is a manufacturing process widely used in industry to join metal parts permanently.
However, the welding process may induce residual stresses, affecting the mechanical
performance of the component negatively. ...
Refusão a arco elétrico de revestimentos aspergidos termicamente: efeito do tipo e intensidade da corrente sobre a microestrutura e microdureza
(Universidade Federal de Santa Maria, 2020-01-16)
The application of Fe-Cr-Ni based coatings is used to improve the corrosion
performance of components made from plain carbon steels. In this context, thermal spraying
processes are widely used in industrial environments ...
Análise termodinâmica de um ciclo combinado Brayton e Rankine orgânico
(Universidade Federal de Santa Maria, 2020-01-09)
The present work presents the configuration of a thermoelectric plant operating at a
Brayton-Rankine power generation cycle. An exploratory study of the working fluids for use in
the Organic Rankine Cycle (ORC) was ...
Projeto preliminar de estrutura cm suporte para ferramenta de clinching utilizada no processo de união de chapas por conformação à frio (UCCF)
(Universidade Federal de Santa Maria, 2019-12-16)
The discharge of grains into storage silos is currently done through cup elevators, these consist of a vertical structure of empty square metallic modules containing in their interior a mat with containers in parallel, ...
Estudo de ciclos de refrigeração utilizando R-744 como fluido refrigerante
(Universidade Federal de Santa Maria, 2019-12-19)
HCFCs’ fluids are the most commonly used in refrigeration cycles. However, new guidelines foresee the abandonment of such fluids for environmental reasons and the industry has again turned its attention to natural fluids, ...
Desempenho de smartphone na avaliação de vibrações em uma motorroçadora lateral
(Universidade Federal de Santa Maria, 2021-07-10)
The brush cutters are very common tools in the entire world. They are used both in domestic services or amateur gardening, as well as in professional gardening services or semi-mechanized harvests. These tasks are easier ...
Sinterização de ligas de Ti-Nb protegida por sal fundido
(Universidade Federal de Santa Maria, 2021-05-21)
The present work aims on evaluating sintering of titanium and niobium alloys, a molten salt (potassium chloride) shield. In this context, two samples were produced containing 10 wt% of niobium (Ti10Nb); and two samples ...
Análise termodinâmica de uma termelétrica operando com ciclo combinado brayton-rankine
(Universidade Federal de Santa Maria, 2021-11-09)
The generation of thermoelectric energy is necessary for today and for the future, as even with
many issues against it, such as pollution and scarcity of the main fuels used, thermoelectric
generation corresponds to a ...
Estudo técnico de estações de recarga de veículos elétricos no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2021-08-30)
Electric vehicles are gaining more space in the search for sustainable solutions in the automotive sector. For the growth and spread of the use of electric vehicles, it’s essential that the necessary infrastructure grows ...