Jim Naturesa

• Doutor em Eficiência Energética
• Engenheiro at Metrô de São Paulo

This work presents a case study of the Train Intercidades project between Campinas and São Paulo, comparing, in the sense of increasing efficiency and reducing CO2 emissions, the supply of diesel generators, batteries and fuel cells. For this, a model of the track and the train to be analyzed was developed using HOMER Pro software, and energy simul...

The personal daily activities demand the use of some type of energy, for instance, to light a lamp or to move a vehicle. Since last century, researches try to improve the efficiency of machines and devices. In addition, create systems capable to take advantage of forms of energy that are lost in some processes, such as the cogenaration. For the eco...

Resumo: Este artigo apresenta alguns dados da economia brasileira (2009 e 2010) e seu impacto nos programas de eficiência energética. São mostrados também os principais resultados do Programa Nacional de Conservação de Energia Elétrica (PROCEL) e do PROCEL INFO, que tem como objetivo reunir e disponibilizar informações sobre o uso racional e eficie...

The objective of this work is to present some discussions about the effects of the Brazilian economy in the national energy efficiency programs behavior, in order to provide some guidances to improve the actions to save energy. The aspects of the substitution of traditional electric motors by motors of high efficiency has been considered. That brin...

RESUMO Esse artigo tem o objetivo de analisar os impactos da PDP (Política de Desenvolvimento Produtivo) e da nova política industrial, PBM (Plano Brasil Maior), nos projetos de eficiência energética. Inicialmente serão relembrados os principais pontos da PDP e os resultados atingidos; após serão apresentados as características gerais do PBM. Difer...

This paper discusses the new industry policy in Brazil called PDP (Política de Desenvolvimento Produtivo) and implications on Brazilian energy efficiency program. The PINTEC – Industrial Research for Technology Innovation (2003/05) indicates a low R&D&I investment of the Brazilian industries. That is expected that an energy efficiency project could...

This paper discusses the 2003 data for PINTEC -Industrial Research for Technology Innovation. Actually this research indicates a low R&D&I investment of the Brazilian industries, as well as some economics aspects like prime matter import, foreign investments, financing are exhibit. That is expected that an energy efficiency project could be underst...

Vibrações e acelerômetros Introdução A vibração normalmente ocorre devido aos efeitos dinâmicos de tolerâncias de fabricação, folgas, contatos, atrito entre peças de uma máquina. As vibrações podem excitar as freqüências naturais das peças que compõem o sistema, fazendo com que sejam amplificadas podendo até danificar o conjunto estruturalmente. En...

This work has as main goal to present some of the issues regarding the effects of the Brazilian economy in the effectiveness of national energy efficiency projects in order to provide some guidelines for optimizing the energy saving actions. The replacement of traditional electric motors with high efficiency motors has been considered, or that brin...

Power system congestion management is a hard task, and the electricity industry restructuring process tends to difficult it even more. The competitive electric power market arises new congestion management perspectives and difficulties. This work demonstrates that modal analysis technique can be a powerful tool for defining corrective actions to ov...

This work describes a multimedia teaching module developed with the objective of improving the access of Electrical Engineering students or any other user to the basic information needed for a good understanding of electrotechnics related courses, mainly those related to low voltage electrical circuits. The interactive module was developed using th...