Search

Your search keyword '"Filho, Faete"' showing total 27 results
Start Over Author "Filho, Faete" Search Limiters Peer Reviewed
27 results on '"Filho, Faete"'

11. A NOVEL DESIGN OF A SOLAR-ASSISTED ACCELERATED COMPOSTING UNIT.

Author

Duba, Kurabachew, Malali, Praveen, and Filho, Faete

Abstract

Composting is an ages-old technology which is still practiced worldwide as a primary avenue for nutrient recycling from organic waste. However, the process is not without issues. Among the major challenge include the long composting time, odor emission, and noticeable lack of process automation, optimization and integration. In this work, an enhanced conceptual design of a continuous composting unit which has the potential to overcome most of the drawbacks associated with the existing systems is presented. The improved design consists of a tubular housing inclined at 35° with a screw conveyor, a maturation reactor, and an adsorption column. The inclined angle helps to inoculate the fresh feed with an active native microorganism which migrates down with the leachate. The system will be self-sustainable and fully automated with energy supplied by a photovoltaic panel. An energy storage device is proposed to account for days when the sunlight is not available. The design is expected to significantly enhance organic matter degradation rate and reduce the operation time. [ABSTRACT FROM AUTHOR]

Published
2018

12. Report Generator And Test Station For Switch-Mode Power Supply Production Line Use

Author

Teixeira Filho, Faete Jacques and Pinto, João Onofre Pereira

Subjects
Energia Elétrica, Fontes Chaveadas, Proteção de Equipamentos Elétricos
Abstract

Este trabalho mostra uma estação teste de fontes chaveadas de baixa potência, controlado por um software que processa as informações coletadas através de placa de aquisição de sinais, permitindo a geração de relatórios de teste e armazenamento de dados de forma confiável. Esta estação permite aumentar o volume de equipamentos testados em uma linha de produção, bem como proporcionar um controle eficiente dos resultados de teste pela automatização do processo, aumentando a confiabilidade dos resultados e permitindo um controle de qualidade mais efetivo. A estação é composta por dois blocos fundamentais: o módulo de potência e o módulo de processamento de sinais. O módulo de potência é composto por um circuito de variação de tensão de entrada e uma carga eletrônica. Por sua vez o módulo de processamento de sinais é composto por uma placa de aquisição de dados, um software de controle, uma interface gráfica e um software de geração de relatório. O software foi desenvolvido no ambiente LabVIEW da National Instruments. Embora já exista produto similar no mercado, este produto foi desenvolvido visando o objetivo principal de baixo custo de implementação, conseguido pela adaptação do projeto à aplicação, e com qualidade comparável aos sistemas já existentes. This work shows a low power switch-mode power supply test station, controlled by a software which process the collected information through the use of a data acquisition board, allowing test report generation and data storage in a reliable way. One of the objectives of this station is to increase the equipment tested volume in a production line, as well as providing an efficient control of the test results by process automatization, increasing results reliability and allowing a more effective quality control. The system is composed by two fundamental blocks: the power module and the signal processing module. The power module is composed by an input voltage variation circuit and an electronic load. The signal processing module is composed by a data acquisition board, a control software, a graphical interface and report generation software. The software was developed in a LabVIEW environment from National Instruments. Although there is similar product in the market, this product was developed with the main objective of low cost goal, achieved by project customization, with the quality comparable to the existing systems.

Published
2006

27. Real-Time Selective Harmonic Minimization for Multilevel Inverters Using Genetic Algorithm and Artificial Neural Network Angle Generation

Author

Filho, Faete Jacques Teixeira

Subjects
Neural Network, Genetic Algorithm, Selective Harmonic Elimination, Harmonic Control, Real-time control, Solar Panels, Electrical and Electronics, Power and Energy
Abstract

This work approximates the selective harmonic elimination problem using Artificial Neural Networks (ANN) to generate the switching angles in an 11-level full bridge cascade inverter powered by five varying DC input sources. Each of the five full bridges of the cascade inverter was connected to a separate 195W solar panel. The angles were chosen such that the fundamental was kept constant and the low order harmonics were minimized or eliminated. A non-deterministic method is used to solve the system for the angles and to obtain the data set for the ANN training. The method also provides a set of acceptable solutions in the space where solutions do not exist by analytical methods. The trained ANN is a suitable tool that brings a small generalization effect on the angles' precision and is able to perform in real time (50/60Hz time window).

Published
2012

Catalog

Books, media, physical & digital resources
See catalog results