Electrical Energy
Mostrando 37-48 de 596 artigos, teses e dissertações.
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37. Generation of Electrical Energy Obtained Through a Continuous Current Generator Coupled to the Pedal of an Ergometric Bicycle
ABSTRACT This study presents a system of conversion of mechanical energy produced by physical activity into electric energy obtained by a CC generator coupled to the pedal of an ergometric bicycle. It presents the converter that will be used to adjust the voltage and power coming from the system, as well as the details of the converter design, the simulation
Braz. arch. biol. technol.. Publicado em: 29/11/2018
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38. Analysis of Production and Consumption of Electric Energy in the Green Office of UTFPR in Curitiba
ABSTRACT The increasing demand for electricity and the scarcity of resources, require renewable energy sources and efficient equipment that reduce the consumption of electricity. The Green Office (GO) of the Universidade Tecnológica Federal do Paraná (UTFPR) is a sustainable building that uses strategies to reduce impacts to the environment, one of them be
Braz. arch. biol. technol.. Publicado em: 29/11/2018
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39. Mixed Electrical Conduction of Calcium Aluminates Synthesized by Polymeric Precursors
A study of the electrical transport properties of calcium aluminate (CA) with coexisting C3A and C12A7 phases was carried out. In this work, powders resulting from synthesis based on the polymer precursor method. The resulting product was characterized by means of XRD, Raman, and UV-visible analysis to obtain the optical BG and by EIS. From the XRD and Raman
Mat. Res.. Publicado em: 23/11/2018
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40. Ag@Activated Carbon Felt Composite as Electrode for Supercapacitors and a Study of Three Different Aqueous Electrolytes
The main challenge for the development of a high efficiency supercapacitor is the electrode material. Developing electrode materials with high specific electrical capacitance and low electrical resistance enables an increase in the energy accumulated in the device. In addition, it is expected that the electrode material presents a simple procedure for prepar
Mat. Res.. Publicado em: 08/11/2018
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41. Development of a Prototype for Measurement of Electrical Energy
ABSTRACT The present work presents the development of a system of measurement of electric energy consumption. This system shows the consumer the amount of energy consumed and its respective monetary value in real time. The prototype was used in a case study to validate its operation. Data were collected to discuss the results obtained. In order to verify if
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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42. Projection of the Demand of Electricity in the State of Paraná for 2050 and Proposal of Complementarity of the Electrical Matrix through the Solar Photovoltaic Source
ABSTRACT Energy is essential for human activities and, considering the prospect that the demand for energy increases, it is necessary to carry out studies of new technical solutions so as to make the use of the available sources feasible. Greater participation of renewable energy sources in the electricity matrix has been stimulated worldwide and a number of
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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43. Study of the Performance Reduction Due to the Dirt Effect in the Photovoltaic Systems of UTFPR - Curitiba
ABSTRACT Photovoltaic systems have been consolidated in the global energy scenario as an option of low environmental impact energy generation, high reliability and great applicability in urban centers, acting like energy generators near the point of consumption. The Federal University of Technology of Paraná (UTFPR), with the proposal of testing the perform
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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44. Computational Model for Microgeneration Simulation, From Solar and Wind Renewable Sources, With Optimal Allocation of Loads, Electric Vehicle and Energy Storage, In a Residential Electrical Micro Network
Abstract The electrical sector is under constant evolution. One of the areas refers to the consumers that come to be generators, implementing distributed generation, interconnected to a smart grid. This article discusses the improvement of an algorithm, already presented in the literature, to make the best temporal allocation of loads, electric vehicle, stor
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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45. Power Flow Analysis and Self-recovery of Electrical Energy Distribution Network Using Artificial Neural Networks
ABSTRACT A computational model for self-recovery of electricity distribution network was developed to simulate it, emulated by the IEEE 123 node model. The electrical system considered has automatic switches capable of identifying a momentary failure in the line and finding the best reconfiguration for its reclosing. An artificial neural network (ANN), backp
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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46. Analysis of the Impacts of the Electrification of the Vehicle Fleet in the Electric Power System in Curitiba
ABSTRACT The Market share of electrical vehicles has been rising in the past few years and tends to rise even more. According to the International Energy Agency, an increase of 50% in the number of electrical vehicles is expected. Whilst that increase is beneficial from a greenhouse gases emissions drop point of view, that rise could, on the other hand, repr
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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47. Ozone in polycyclic aromatic hydrocarbon degradation
Abstract Among energy sources from food, corn is a cereal with significant nutritional characteristics. However, during preprocessing, corn is subject to contamination by polycyclic aromatic hydrocarbons, which are considered carcinogenic, and gas ozone can be used as an alternative for decontamination. This study aims to evaluate the effect of ozonation on
Food Sci. Technol. Publicado em: 26/07/2018
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48. Método innovador de ensayos de impacto en altas temperaturas aplicado en aceros al carbono
ABSTRACT In this paper, an innovative method of impact tests at high temperature on sub-size Charpy V notched specimens is applied. The innovation lies in the method of heating the specimen, which is performed in situ on a Charpy impact machine type by alternating electrical current through the specimen. The specimens are heated in a few seconds (v=32 ºC/s)
Matéria (Rio J.). Publicado em: 19/07/2018