Estudo sobre iluminação e banco de capacitores de uma típica indústria metalúrgica

The use of electricity for obtaining light has been quite an issue currently discussed, either through new technologies that are emerging, the quest for greater efficiency, reduced waste and rational use. This work comprises a lighting design applied to a metallurgical based Brazilian Standard 5413 which mentions levels of luminance for interior and, in the case of this work, for a sandblasting booth. Ways to improve the workplace and luminosity presented before the project and also after its implementation are discussed. Technologies are chosen guided by technical calculations according to the illuminance values they want to reach for the environment studied. All pertinent design features are critically analyzed and discussed, and at the end proposals are presented, relating to each other in a comparative framework, so the best solution is applied in a practical way in the enclosure. Results are also presented concerning the maintenance of a bank of capacitors to correct the power factor for the metals studied company

Avaliação de projetos logísticos de RFID aplicados na indústria aeronáutica brasileira

Pós-graduação em Engenharia Mecânica - FEG

Proposta de metodologia para aplicação de eficiência energética em uma usina hidrelétrica

Pós-graduação em Engenharia Mecânica - FEG

Avaliação do efeito da paralisação da aeração no tratamento biológico aeróbio da água residuária da indústria de farinha de mandioca

The cassava wastewater, generated during the cassava processing, is a pollutant and toxic waste. This study compared the efficiency of the cassava wastewater treatment in three batch aerobic systems with a ru1nning time of 24 hours, and aeration stoppage of 12h with 2,500, 6,000 and 10,000 mg COD L-1 . The systems were evaluated for COD, pH, SVI and F/M. The results showed that the reactor with aeration stoppage for 12 hours, with 2,500 mg COD L-1 , presented the best reduction in a process with considerable energy consumption saving compared to traditional continuous systems.

Decisão making or buying: uma aplicação em células de manufatura de uma indústria de produção mecânica

In order to maintain the competitiveness the companies seek for cost reduction and resource optimization. A product or service price is calculated considering direct and indirect costs involved in its fabrication, which means that if an intern indirect process is optimized, the final price of the product is also reduced and becomes more interesting to the final costumer. Considering this reasoning, the companies must evaluate each of their processes and optimize them. It is common to outsource intern products manufacturing as a cost reduction strategy, nevertheless when there are already resources and capability to produce the own goods, it becomes necessary to evaluate the economic gain that each strategy - make or buy - generates. This paper aims to evaluate the necessary support to take a decision regarding making or buying in a production cell of hoses based in the value of economic cost, system cost and decision process

Aumento de produtividade em uma célula produtiva com processo de usinagem utilizando conceitos Lean

In the current competitive and global scenario, companies in search for solutions that become the production every time more efficient is increasing and at the same time cost reductions and cost eliminations are becoming increasingly evident and needed. In an attempt to improve production, this work aims to compare benefits obtained using principles of philosophy Lean Manufacturing in an productivity growth of a cell from an auto parts sector industry. For that purpose it will be studied the history, the concepts and the tools of philosophy Lean Manufacturing, thus using the as a business-strategic tool to accomplish goals that the company expects to get greater competitiveness and quality. The efficiency of philosophy Lean Manufacturing was already confirmed through applying the concepts in the process which has been improved inside an auto parts sector industry. At last, comparative analyzes showed benefits obtained with the use of Lean Manufacture tool called VSM, Value Stream Map, which translates the Value Stream Map of a particular family of parts as the identification, minimization and elimination of waste identified

Analise técnica, econômica e ecológica da incorporação de sistemas de gaseificação de bagaço de cana-de-açúcar no setor sucroalcooleiro: uso de ciclos combinados para o aumento da oferta de eletricidade

Pós-graduação em Engenharia Mecânica - FEG

O desenvolvimento da indústria farmacêutica no Brasil e na Índia: um estudo comparativo

The article shows how the development of the pharmaceutical industry in Brazil and India occurred, and why the industry in these two countries, which until the 1970s were much alike, today show significant differences. The historical analysis of the trajectories of the industries in both countries showed that the Indian industry has a higher technological content, due to, among others, the efficiency of public policies implemented since the 1970s, which were aimed at improving not only production, but also the technological development.

O efeito do fim do Acordo sobre Têxteis e Vestuários para a indústria brasileira: uma análise a partir da fronteira de produção estocástica

This article investigates the productivity and production function of thirteen large Brazilian textile and clothing companies before and after the end of the Agreement on Textiles and Clothing (AVT) that abolished import quotas in 2005. For this purpose, we estimate the stochastic production frontier in panel data between 1997 and 2008 and simultaneously an explanatory equation for the (in)efficiency of firms, as proposed by Battese and Coelli (1995). The results indicated that more efficient firms are the oldest. The total factor productivity of firms tended to fall, even after the end of quotas, increasing productivity only from 2007. Overall, firms from Santa Catarina were more efficient than those of other states.

Biodessulfurização do biogás gerado no processo de digestão anaeróbia da estação de tratamento de efluentes de uma indústria cervejeira

Pós-graduação em Química - IQ

Influência do relevo e da experiência dos operadores nos rendimentos e custos da colheita de madeira de eucalipto

Pós-graduação em Ciência Florestal - FCA

Desenvolvimento de metodologia para implementação de eficiência energética em sistemas auxiliares de uma planta industrial siderúrgica semi-integrada

Pós-graduação em Engenharia Mecânica - FEG

Custos energéticos do agroecossistema pinhão-manso e milho: comparativo entre o sistema de condução sequeiro e o irrigado

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Análise econômica da eficiência da produção de cana-de-açúcar de fornecedores do Estado do Paraná

The sugarcane industry has been important in the Brazilian economy since the colonial period. The search for alternative energy sources has gained more prominence, by offering a product generating clean energy. With the opening of the Brazilian economy, the sector has undergone transformations operating in a free market environment requiring greater efficiency and competitiveness of those involved in order to stay in business. This scenario is producer/supplier independent, and social aspects related to their stay in the market. Although its share in sugarcane production is smaller than the plant itself, it is still considerable having reached around 20% to 25% in 2008 by employing labor, also production factors had an important economic impact in the regions where they operate. Therefore, this study aimed to estimate the economic efficiency and production of independent sugarcane producers in the state of Paraná through the DEA model. The Data envelopment analysis (DEA) is a nonparametric technique that, using linear programming constructs production borders from production units that employ similar technological processes to transform inputs into outputs.The results showed that of the total surveyed, 13.56% had maximum efficiency (an efficiency score equal to 1). The average efficiency under variable returns to scale (BCC-DEA) was 0.71024. One can thus conclude that for the majority of the samples collected, it might be better use of available resources to the in order to obtain the economic efficiency of the production process.

Eficiência energética de sistemas de produção de mamona no Estado de Minas Gerais

The objective of this study is to determine the economical and energetic efficiency of the castor bean culture in "Zona da Mata" and South of Minas Gerais. Through the method of simulation "Monte Carlo", we verified the probabilities of occurrence of the economical, cultural and energetic efficiency indexes. In relation to the production systems of castor bean in Minas Gerais in the season 2005/2006, we established that the variables price and productivity were the most noticeable for the producers from "Zona da Mata", while in the South of Minas it was productivity. We verified that the probability of the economical efficiency index to be lower than one was 43,26% for the producers from "Zona da Mata" and 39,57% for the ones from the South of Minas. The medium price received covered the medium costs of production. However, we observed that the medium costs in these regions of Minas Gerais, were over the minimum price. Regarding the energetic analysis, the results showed that the systems in the regions studied in Minas Gerasi, presented average of cultural efficiency indexes of 8,26 and 18,89. We concluded that despite the result being favorable from the energetic point of view, from the economical sustainability point of view there is the need of a more effective support policy for the castor bean, taking into consideration that the expectations of the producers with PNPB were not confirmed.