Since 1995 Brazil has been applying its labeling program to increase the efficiency of application of many household appliances and equipment. From 2003 on inductions motors have also been receiving the PROCEL2 prize, which helped push motors efficiency over than those limits established by the labeling program. Therefore, this work presents the development of a […]
O presente trabalho busca obter as perdas e o rendimento do motor elétrico pelo método termográfico, o qual parte do princípio de que as perdas em um motor elétrico se dissipam na forma de calor, e o compara com um método tradicional de separação de perdas com medição direta da potência elétrica e mecânica. Ambos […]
The paper addresses a literature review of the technologies used in the transmission of measuring and logging data during well drilling. It presents a discussion about efficiency in data density transmission and reliability, especially when it comes to software and automated tools. Initially, this paper analyzes the principle of the telemetry systems, considering the mud […]
This work aims at estimating the losses of a three-phase induction motor using the thermography techniques, which assumes that all the losses of the motor are dissipated as heat. The proposed technique is compared to the traditional method of losses segregation with direct measurement of the electric and mechanical power. Results statistically treated are also […]
Over the past years, the pursuit of using less polluting energy sources throughout society has been on the increase. In general, the transportation sector is responsible for most of the emissions of greenhouse gases. Therefore, in this article a methodological approach is applied in such a way that it is possible to quantify the impact […]
A relevância da energia como um insumo para os processos produtivos é bastante conhecida. Sem energia, nada pode ser realizado, transportado ou processado. Sabe-se que boa parte da energia entregue às unidades produtivas é desperdiçada ou usada com baixa eficiência, sendo igualmente reconhecida a necessidade de se melhorar o rendimento dos processos energéticos no contexto […]