Results 11 to 20 of about 99,456 (251)

Control‐oriented estimation of the exchange current density in PEM fuel cells via stochastic filtering

International Journal of Energy Research, Volume 46, Issue 15, Page 22516-22529, December 2022., 2022
This study presents a control oriented, stochastic filtering approach for online, continuous estimation of the exchange current density in low temperature proton exchange membrane fuel cells. The fuel cell is framed as a Markov model where the exchange current density is posed as the stochastic hidden state and a particle filter algorithm is developed ...
José Agustín Aguilar, Juan Andrade‐Cetto, Attila Husar   +2 more
wiley   +1 more source

DEVELOPMENT OF A FURNACE TO FABRICATE SILICON SOLAR CELLS [PDF]

Tecnologia em Metalurgia, Materiais e Mineração, 2012
Solar cell world market had an exponential growth in the last decade and nowadays it continues in expansion. To produce solar cells, dopants need to be introduced into the crystalline silicon wafer in order to form the pn junction.
Sérgio Boscato Garcia , Adriano Moehlecke, Izete Zanesco   +2 more
doaj   +1 more source

Labeling of Installed Heating Appliances in Residential Buildings: An Energy Labeling Methodology for Improving Consumers’ Awareness

Energies, 2021
In the EU 28, the installed heating appliance stock is quite old, with an actual replacement rate of 4%. This is directly reflected in the average efficiency of the installed heating systems, where around 60% of the stock is rated with an energy class of
Diego Menegon, Daniela Lobosco, Leopoldo Micò, Joana Fernandes   +3 more
doaj   +1 more source

ENERGIA SOLAR FOTOVOLTAICA: REVISÃO BIBLIOGRAFICA

Revista Mythos, 2021
A demanda pela diversificação da matriz energética brasileira tem se tornado cada vez mais importante, sendo estimulado por dois principais fatores. Primeiro pelo atual panorama energético, pois a diminuição das chuvas vem acontecendo frequentemente e a consequência faz com que aconteça a redução de energia geradas pelas hidrelétricas.
Matheus Segundo da Silva, Thiago Rocha Lana, José Antonio Silva Júnior, Matheus G. Talarico   +3 more
openaire   +2 more sources

Layered metal halide perovskite solar cells: A review from structure‐properties perspective towards maximization of their performance and stability

EcoMat, 2021
Perovskite solar cells (PSCs) technology is now reaching its full potential in terms of power conversion efficiency, but still presenting problems related to long‐term stability under operating conditions.
Matheus S. deHolanda, Raphael F. Moral, Paulo E. Marchezi, Francisco C. Marques, Ana Flávia Nogueira   +4 more
doaj   +1 more source

Avaliando aprendizado de máquina na previsão de curto prazo de séries temporais de energia solar

Revista Brasileira de Computação Aplicada, 2021
Fontes alternativas de energia estão se tornando cada vez mais frequentes, tendo como objetivo reduzir a poluição ambiental, além de serem ideais para superar a crise energética, logo, neste contexto, a energia solar se destaca por ser abundante.
Naylene Fraccanabbia, Viviana Cocco Mariani   +1 more
doaj   +1 more source

ENERGIA SOLAR E SUA VIABILIZAÇÃO

Revista Ibero-Americana de Humanidades, Ciências e Educação, 2021
Os painéis fotovoltaicos possibilitam a maneira mais inteligente de se converter a energia solar diretamente em energia elétrica, quando a luz solar atinge uma célula fotovoltaica, é formada uma corrente elétrica pequena, sendo assim recolhida e injetada para os outros componentes que formam o sistema.
Ronilson Jardim Sousa, Letícia Estefani Sousa Santos, André Emiliano de Barros Nardes, George Hallan Marques dos Santos, Rafaela Aguiar Araújo, Mariana de Castro Marques   +5 more
openaire   +2 more sources

Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid

Energies, 2019
Parabolic trough collector (PTC) technology is currently the most mature solar technology, which has led to the accumulation of relevant operational experience. The overall performance and efficiency of these plants depends on several components, and the
Cristina Prieto, Alfonso Rodríguez-Sánchez, F. Javier Ruiz-Cabañas, Luisa F. Cabeza   +3 more
doaj   +1 more source

Energia solar na construção civil nos Gerais de Balsas, Maranhão: uma perspectiva de sustentabilidade

RCT: Revista de Ciência e Tecnologia, 2022
Considerando a importância dos recursos energéticos renováveis, o objetivo desta pesquisa é analisar o uso de energia solar na construção civil nos Gerais de Balsas-MA.
Natália dos Santos Mota, Vinicius Farias de Albuquerque, Regina Maria Mendes Oliveira   +2 more
doaj   +1 more source

Synthesis of Non-Cubic Nitride Phases of Va-Group Metals (V, Nb, and Ta) from Metal Powders in Stream of NH₃ Gas under Concentrated Solar Radiation

ChemEngineering, 2021
Using a high-flux solar furnace, loosely compacted powders of Va-group transition metal (V, Nb, and Ta) were reacted with stream of NH3 gas (uncracked NH3 gas) being heated by concentrated solar beam to a temperature (T) range between 600 and 1000 °C ...
Nobumitsu Shohoji, Fernando Almeida Costa Oliveira, José Galindo, José Rodríguez, Inmaculada Cañadas, Jorge Cruz Fernandes, Luís Guerra Rosa   +6 more
doaj   +1 more source