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Estudo da recuperação de acetonitrila proveniente de um laboratório de análises em bebidas
(2023-08-30)
In order to obtain an ecologically correct cycle for acetonitrile, recovery of the solvent is sought as an alternative to the usual treatment through incineration. Acetonitrile is obtained primarily through the production ...
Análise do impacto dos veículos elétricos no sistema elétrico interligado nacional
(2023-12-06)
The use of fossil fuels, such as gasoline, has been causing negative environmental impacts due to the emission of polluting gases, such as CO2, which is one of the main causes of climate change, manifesting as the greenhouse ...
Drive sensorless para motores de corrente contínua sem escovas de baixo custo para compressores de geladeira automotiva
(2023-12-09)
This work presents the development of a low-cost sensorless drive system for Brushless DC motors used in automotive refrigerator compressors. For its correct operation, the controller features both a discrete position ...
Avaliação do desempenho acústico de argamassas de contrapiso com substituição do agregado miúdo natural por agregado miúdo de resíduos cerâmicos
(2023-12-15)
The reuse of ceramic waste as fine aggregate in mortars has proved to be a promising practice in the field of civil construction, especially with regard to improving the acoustic performance of subfloors. The use of ceramic ...
Análise da falha prematura de eixos de tração aplicados em equipamento autônomo para alimentação de suínos
(2023-12-11)
Over time, the agribusiness segment has been increasingly modernizing and employing new technologies, both in agriculture and livestock. The adoption of modern machines and new management practices made the agribusiness ...