50 resultados para Renewable energy park
Resumo:
Trabalho Final de Mestrado para obtenção do grau de Mestre em Engenharia Mecânica
Resumo:
Dissertação para obtenção do grau de Mestre em Engenharia Electrotécnica Ramo de Energia
Resumo:
Dissertação para obtenção do grau de Mestre em Engenharia Civil na Área de Especialização de Edificações
Resumo:
Dissertação para obtenção do grau de Mestre em Engenharia Electrotécnica Ramo de Energia
Resumo:
Dissertação para obtenção do grau de Mestre em Engenharia Electrotécnica Ramo de Energia
Resumo:
Trabalho Final de Mestrado para obtenção do grau de Mestre em Engenharia Mecânica
Resumo:
Trabalho Final de Mestrado para obtenção do grau de Mestre em Engenharia Química e Biológica Ramo de Processos Químicos
Resumo:
Dissertação de Natureza Científica para obtenção do grau de Mestre em Engenharia Civil na Área de Especialização de Edificações
Resumo:
Trabalho Final de Mestrado para obtenção do grau de Mestre em Engenharia Mecânica
Resumo:
Electricity short-term load forecast is very important for the operation of power systems. In this work a classical exponential smoothing model, the Holt-Winters with double seasonality was used to test for accurate predictions applied to the Portuguese demand time series. Some metaheuristic algorithms for the optimal selection of the smoothing parameters of the Holt-Winters forecast function were used and the results after testing in the time series showed little differences among methods, so the use of the simple local search algorithms is recommended as they are easier to implement.
Resumo:
This paper is concerned with direct or indirect lightning strokes on wind turbines, studying overvoltages and electromagnetic transients. As wind power generation undergoes rapid growth, lightning damages involving wind turbines have come to be regarded with more attention. With the aim of providing further insights into the lightning protection of wind turbines, describing the transient behavior in an accurate way, the restructured version (RV) of the electromagnetic transients program (EMTP) is used in this paper. A new case study is presented with two interconnected wind turbines, considering a direct lightning stroke to the blade or considering that lightning strikes the soil near a tower. Comprehensive computer simulations with EMTP-RV are presented and conclusions are duly drawn.
Resumo:
Dissertação para obtenção do grau de Mestre em Engenharia Electrotécnica Ramo Energia
Resumo:
Trabalho Final de Mestrado para obtenção do grau de Mestre em Engenharia Mecânica
Resumo:
This paper describes preliminary work on the generation of synthesis gas from water electrolysis using graphite electrodes without the separation of the generated gases. This is an innovative process, that has no similar work been done earlier. Preliminary tests allowed to establish correlations between the applied current to the electrolyser and flow rate and composition of the generated syngas, as well as a characterisation of generated carbon nanoparticles. The obtained syngas can further be used to produce synthetic liquid fuels, for example, methane, methanol or DME (dimethyl ether) in a catalytic reactor, in further stages of a present ongoing project, using the ELECTROFUEL® concept. The main competitive advantage of this project lies in the built-in of an innovative technology product, from RE (renewable energy) power in remote locations, for example, islands, villages in mountains as an alternative for energy storage for mobility constraints.
Resumo:
Trabalho final de Mestrado para obtenção do grau de Mestre em Engenharia Mecânica Ramo Manutenção e Produção