13 documents found, page 1 of 2
Potential for hydrogen production associated to water and food in off-grid comm...
Rodrigues, Luiz; Araujo, Luis; Gano, António; Pinto, P.J.R.; Simoes, Sofia; Brito, Paulo; Monjane, Armindo; Rangel, C. M.ABSTRACT: Solar energy is called to meet electricity demands for isolated, off-grid communities in Africa. However, solar electric energy is intermittent and can be stored, for a limited amount of time, in batteries, which are expensive and cause serious environmental impacts at the end of their lifetime. Conversion of the surplus electric energy to green hydrogen through water electrolysis and back to electric...
The H2Excellence Project: Fuel Cells and Green Hydrogen Centers of Vocational E...
Gano, António; Pinto, P.J.R.; Esteves, M. Alexandra; Rangel, C. M.ABSTRACT: The demand for green hydrogen (H2) and related technologies is expected to increase in the coming years mainly framed by drivers such as climate change and energy security of supply amid the European and global energy crises. REpowerEU Plan called for an intensification of hydrogen delivery targets, that will bring large-scale adoption of hydrogen production and applications in various sectors, stress...
LNEG, bringing Green H2 research to the economy [Comunicação oral]
Portillo, Juan C. C.; Barbosa, Juliana; Simoes, Sofia; Oliveira, Paula; Amorim, Filipa; Simões, Teresa; Rodrigues, Carlos; Catarino, Justina
Como o consumo de eletricidade na indústria está distribuído no território em P...
Barbosa, Juliana; Simoes, Sofia; Oliveira, Paula; Simões, Teresa; Rodrigues, Carlos; Catarino, Justina; Cardoso, João P.; Pinto, P.J.R.; Quental, Lídia
Potential for hydrogen production associated to water and food in off-grid comm...
Rodrigues, Luiz; Araujo, Luis; Gano, António; Pinto, P.J.R.; Simoes, Sofia; Brito, Paulo; Monjane, Armindo; Rangel, C. M.ABSTRACT: Solar energy is called to meet electricity demands for isolated, off-grid communities in Africa. However, solar electric energy is intermittent and can be stored, for a limited amount of time, in batteries, which are expensive and cause serious environmental impacts at the end of their lifetime. Conversion of the surplus electric energy to green hydrogen through water electrolysis and back to electric...
Identificação de áreas com menor sensibilidade ambiental e patrimonial para loc...
Simoes, Sofia; Quental, Lídia; Simões, Teresa; Catarino, Justina; Rodrigues, Carlos; Patinha, Pedro; Pinto, P.J.R.; Azevedo, Pedro; Picado, AnaRESUMO: Este documento descreve o trabalho desenvolvido pelo LNEG com vista à futura identificação de “Go-To Areas” para a localização de unidades de produção de energia de fonte renovável em Portugal Continental. O trabalho decorreu no âmbito de um Grupo de Trabalho informal, coordenado pelo LNEG e envolvendo as seguintes entidades: a Agência Portuguesa do Ambiente (APA), a Direção Geral de Energia e Geologia ...
Distribuição do consumo de eletricidade na indústria no território em Portugal ...
Barbosa, Juliana; Simoes, Sofia; Oliveira, Paula; Patinha, Pedro; Quental, Lídia; Catarino, Justina; Simões, Teresa; Rodrigues, Carlos; Pinto, P.J.R.RESUMO: Este documento descreve o trabalho desenvolvido pelo LNEG com vista ao mapeamento do consumo de eletricidade na indústria em Portugal Continental e a potencial satisfação desta procura por energia solar fotovoltaica. O presente estudo derivou do esforço anterior para a identificação no país de áreas com menor sensibilidade (ambiental e patrimonial) para a instalação de centrais de geração de eletricidad...
Simulation of a stand-alone residential PEMFC power system with sodium borohydr...
Pinto, P.J.R.; Sousa, T.; Fernandes, Vitor; Pinto, A. M. F. R.; Rangel, C. M.Catalytic hydrolysis of sodium borohydride (NaBH4) has been investigated as a method to generate hydrogen for fuel cell applications. The high purity of the generated hydrogen makes this process a potential source of hydrogen for polymer electrolyte membrane fuel cells (PEMFCs). In this paper, a PEMFC power system employing a NaBH4 hydrogen generator is designed to supply continuous power to residential power a...
A sodium borohydride hydrogen generation reactor for stationary applications: E...
Sousa, T.; Fernandes, Vitor; Pinto, P.J.R.; Slavkov, Y.; Bosukov, L.; Rangel, C. M.Ruthenium on nickel-foam catalyst was prepared for hydrogen production from the hydrolysis reaction of an alkaline NaBH4 solution. Experiments were carried out at five temperatures (30, 40, 45, 50 and 60 °C) in a 0.1 dm3 small batch reactor. To understand the kinetic behaviour of the hydrolysis reaction in the presence of this catalyst, the experimental data were fitted to three kinetic models (zero-order, firs...
Analysis of a stand-alone residential PEMFC Power system with sodium borohydrid...
Pinto, P.J.R.; Fernandes, Vitor; Pinto, A. M. F. R.; Rangel, C. M.Catalytic hydrolysis of sodium borohydride (NaBH4) has been investigated as a method to generate hydrogen for fuel cell applications. The high purity of the generated hydrogen makes this process an ideal source of hydrogen for polymer electrolyte membrane fuel cells (PEMFCs). In this paper, the possibility of using a NaBH4-based hydrogen generator with a PEMFC for stand-alone residential use is examined. A comp...