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Análise de parâmetros e perda de vida útil da bateria de chumbo ácido em regime de flutuação
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia ElétricaUTFPR, 2019-06-28)
Lead acid batteries are the most common in the domestic market, its main automotive and battery bank applied to uninterrupted voltage sources, UPS. Despite being a traditional source, they still have many problems of failure ...
Análise de perda de vida útil em transformadores isolados em óleo causada por sobrecorrente
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia ElétricaUTFPR, 2018-11-08)
The oil transformer has its useful life drop when there is a temperature above the maximum elevation. Thus, first there is a study on the thermodynamics of the transformer, which includes the temperature limits, the winding ...
Avaliação da vida útil de brocas de aço rápido M2 submetidas ao tratamento de nitretação a plasma
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2015-07-16)
The plasma nitriding is becoming increasingly common in the surface treatment processes. One of the applications of this process occur on high speed steel machining tools. This study realized analyses of how the nitriding ...
Efectos de los conservantes naturales ɛ-polilisina y propóleo en la vida útil del queso fresco pasteurizado
(Calceta: ESPAM MFL, 2022)