Relevant bibliographies by topics / Energia, Fuel cell / Dissertations / Theses
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Dissertations / Theses on the topic 'Energia, Fuel cell'

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Published: 10 March 2023

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1

Furlan, André Luís. "Análise técnica e econômica do uso do hidrogênio como meio armazenador de energia elétrica proveniente de fontes eólicas." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263953.

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Orientadores: Ennio Peres da Silva, Newton Pimenta Neves Junior<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-20T12:25:52Z (GMT). No. of bitstreams: 1 Furlan_AndreLuis_D.pdf: 2850462 bytes, checksum: cf9586ce36bd523119ff4727d43989f7 (MD5) Previous issue date: 2012<br>Resumo: Este trabalho faz uma análise técnico-econômica do uso do hidrogênio como meio armazenador de energia elétrica proveniente de fonte eólica, cuja natureza imprevisível do vento não pode garantir sua quantidade de energia elétrica ofertada.
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2

Gonzatti, Frank. "Bases experimentais para o projeto, automação e instalação de sistemas de geração de energia com células de combustível." Universidade Federal de Santa Maria, 2005. http://repositorio.ufsm.br/handle/1/8440.

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The main concern of this dissertation is the establishment of experimental bases for the project, automation, and installation of a micro-power plant for electric power generation based on PEM fuel cell stacks (BCS Technology). The plant operates automatically, and its control is accomplished by a microcontroller acting directly in the temperature, in the humidity of the membrane, in the amount of reaction air, in the monitoring of the individual voltage of each cell and in the attempt of recovery of a possibly problematic cell. For control operation special auxiliary mechanisms are necessary
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Ramsdorf, Marcelo de Almeida [UNESP]. "Células-combustível a etanol direto embarcadas em aeronaves: estudo de utilização e recuperação de calor residual." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/137847.

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Submitted by MARCELO RAMSDORF (marceloramsdorf@gmail.com) on 2016-04-07T18:09:06Z No. of bitstreams: 1 Dissertacao_Marcelo_Ramsdorf.pdf: 3773711 bytes, checksum: 2740d7feeceb5938048e38e5ea25595e (MD5)<br>Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-04-08T11:53:43Z (GMT) No. of bitstreams: 1 ramsdorf_ma_me_guara.pdf: 3773711 bytes, checksum: 2740d7feeceb5938048e38e5ea25595e (MD5)<br>Made available in DSpace on 2016-04-08T11:53:43Z (GMT). No. of bitstreams: 1 ramsdorf_ma_me_guara.pdf: 3773711 bytes, checksum: 2740d7feeceb5938048e38e5ea25595e (
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Gonzatti, Frank. "Fundamentos para concepção, controle e automação de uma planta armazenadora de energia utilizando hidrogênio." Universidade Federal de Santa Maria, 2017. http://repositorio.ufsm.br/handle/1/12933.

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Electrical generation with renewable sources is intermittent due to the characteristics of the primary energy (sun, wind, run of water, etc.). This feature can cause fluctuations and distortions on the voltage levels compromising power quality, stability and reliability when connected to an electrical system. The storage of energy acting together either as standalone unit or interconnected to the generating source of the public network can increase the penetration of these sources in the energy matrix. Among the different forms of energy storage, the one using hydrogen is quite promising becau
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Lopes, Daniel Gabriel. "Analise tecnica e economica da inserção da tecnologia de produção de hidrogenio a partir da reforma de etanol para geração de energia eletrica com celulas a combustivel." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263838.

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Orientador: Ennio Peres da Silva<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-12T18:33:39Z (GMT). No. of bitstreams: 1 Lopes_DanielGabriel_D.pdf: 1342429 bytes, checksum: 07781c234da4ed70010b3d55a91f6986 (MD5) Previous issue date: 2009<br>Resumo: Este trabalho apresenta uma análise técnica e econômica da utilização do processo de reforma de etanol para produção de hidrogênio e da utilização deste hidrogênio para produção de energia elétrica em uma célula a combustível do tipo PEMFC de 5,0 kW. A análise técnic
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6

Aguiar, Cassius Rossi de. "Contribuição ao gerenciamento e controle de células a combustível e armazenadores de energia para a operação em geração distribuída." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18153/tde-09112017-103011/.

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A presente tese busca desenvolver uma metodologia para o gerenciamento e controle de uma geração distribuída que utiliza como fonte principal células a combustível do tipo PEM (Proton Exchange Membrane). A finalidade do trabalho consiste em analisar, controlar e gerenciar a operação da célula a combustível (CaC) nas operações ilhada e conectada em relação à rede de distribuição. Nos primeiros capítulos do texto é elaborada uma revisão acerca do princípio de funcionamento e do modelo da CaC. Após este estágio inicial, são analisadas e modeladas as estruturas dos estágios CC e CA que compõem a g
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CAVALCANTI, Davi de Lima. "Potencial biotecnológico de chlorella vulgaris: aplicação em biocelulas a combustível fotossintética, produção de energia e sequestro de co2." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/18531.

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Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2017-04-10T17:20:12Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DISSERTAÇÃO -DAVI CAVALCANTI certa.pdf: 1682949 bytes, checksum: e88ff7ec323c0df6eb4f0102509ba5b3 (MD5)<br>Made available in DSpace on 2017-04-10T17:20:12Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DISSERTAÇÃO -DAVI CAVALCANTI certa.pdf: 1682949 bytes, checksum: e88ff7ec323c0df6eb4f0102509ba5b3 (MD5) Previous issue date: 2016-02-23<br>Capes<br>O crescimento
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Micena, Raul Pereira. "Estação de produção e abastecimento de hidrogênio solar : análise técnica e econômica /." Guaratinguetá, 2020. http://hdl.handle.net/11449/192426.

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Orientador: José Luz Silveira<br>Resumo: A utilização do hidrogênio como insumo energético para aplicações de transporte depende da disponibilização de alternativas renováveis para sua produção. Uma delas são as estações com eletrólise alimentada por uma planta solar fotovoltaica on-grid. Nesse trabalho, assume-se a substituição da atual frota de táxis da cidade brasileira Guaratinguetá-SP por veículos a célula-a-combustível. Para atender a demanda de hidrogênio dos veículos, é preciso produzir 170,24 kg de hidrogênio por dia. Esse hidrogênio deve ser fornecido comprimido a uma pressão de 87,5
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Carnieletto, Renata. "Aproveitamento de energia vertida turbinável para produção de hudrogênio e geração distribuída." Universidade Federal de Santa Maria, 2011. http://repositorio.ufsm.br/handle/1/8486.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>In many hydroelectric power plants, while the water inflows are greater than demand, part of this water that could be used to generate energy is spilled by the dam gates and literally wasted. This dissertation discusses the use of this wasted hydroelectric potential for hydrogen (H2) generation through water electrolysis. The usage of this hydrogen can happen not only in vehicle engines or industrial applications, but in energy generation through fuel cells and behaving as an energy vector. The H2 production by electrolysis requi
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Testi, Luca. "Tecnologie per la produzione di idrogeno da fonti rinnovabili." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24892/.

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Il seguente elaborato analizza il ciclo di vita dell'idrogeno, a partire dal processo produttivo fino alle sue possibili applicazioni. In particolare si sofferma sulla produzione di idrogeno tramite elettrolisi e sulla sua applicazione all'interno di fuel cells nell'ambito dei trasporti, per ottenere ed utilizzare energia totalmente ad emissioni zero.
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Egute, Nayara dos Santos. "Estudo do processo para a aceleração da geração de amônia a partir de resíduos avícolas visando à produção de hidrogênio." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-12082011-155529/.

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O hidrogênio, utilizado em células a combustível, pode ser produzido a partir de diferentes espécies químicas, entre elas a amônia. O gás amônia como matéria prima para produção de H2 tem sido utilizado devido ao seu alto conteúdo energético e de hidrogênio, pela sua facilidade de decomposição, grande disponibilidade, baixo custo, pelas baixas pressões de armazenamento e pelos subprodutos do processamento serem ambientalmente corretos. Uma das fontes de amônia são os sistemas produtivos de frango de corte e ovos. Nesses sistemas a amônia é gerada a partir da decomposição do ácido úrico encontr
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Silva, Fellipe Sartori da [UNESP]. "Determinação do custo de energia gerada através da utilização de células a combustível de carbonato fundido e turbina a vapor em um ciclo combinado." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153118.

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Submitted by Fellipe Sartori da Silva null (fellipe_sartori@yahoo.com) on 2018-03-20T14:29:37Z No. of bitstreams: 1 Determinação do custo de energia gerada através da utilização de células a combustível de carbonato fundido e turbina a vapor em um ciclo combinado.pdf: 3065864 bytes, checksum: 1b28d8ca48a059ab95292517f0d2d616 (MD5)<br>Approved for entry into archive by Pamella Benevides Gonçalves null (pamella@feg.unesp.br) on 2018-03-21T13:25:41Z (GMT) No. of bitstreams: 1 silva_fs_me_guara.pdf: 3065864 bytes, checksum: 1b28d8ca48a059ab95292517f0d2d616 (MD5)<br>Made available in DSpace on 2
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Senna, Roque Machado de. "Desenvolvimento e demonstração de funcionamento de um sistema híbrido de geração de energia elétrica, com tecnologia nacional composto por um módulo de células a combustível tipo PEMFC e acumulador chumbo ácido." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-24102012-083711/.

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Este trabalho apresenta a contribuição obtida no desenvolvimento de um Gerador de Eletricidade Híbrido (HYBRIDGEN), com tecnologia nacional, focado nos sistemas de terceira geração de energia elétrica híbrido, composto por um módulo de células a combustível tipo PEMFC, associado a um acumulador chumbo ácido. Mostra-se também a sua capacidade de operar em modo contínuo, carga com demanda variável e fator de carga inferior a 50%. Foram abordados quatro temas principais. O primeiro refere-se a um estudo para a melhoria da eficácia na conversão de energia em corrente contínua (cc), ao regular o po
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Santini, Itamar. "Análise de conversores CC-CC com alto ganho de tensão para aplicações com célula a combustível." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18153/tde-24012017-162247/.

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O presente trabalho aborda a análise e o desenvolvimento de conversores CC-CC com alto ganho de tensão, para aplicações com fontes de energia de baixíssima tensão, porém capazes de fornecer altas correntes, como: painéis fotovoltaicos, células a combustível e baterias. O principal objetivo deste trabalho é elevar a tensão de uma única célula a combustível até um nível adequado de tensão para realizar a carga de uma bateria com tensão nominal de aproximadamente 12 V, de modo eficiente, com baixa ondulação na corrente de entrada do conversor e com baixa ondulação na tensão de saída. Para alcança
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de, la Torre Jorge. "FUEL CELLS: HYPE OR REALITY? OVERVIEW OF FUEL CELL TECHNOLOGIES FEASIBILITY STATUS WITH AN EMPHASIS ON AUTOMOTIVE AND RESIDENTIAL PROTON EXCHANGE MEMBRANE FUEL CELLS (PEMFCs)." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1309540374.

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Ferreira, Andre Augusto. "Sistema supervisorio de gestão de multiplas fontes de suprimento para aplicações em veiculos eletricos." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260860.

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Orientador: Jose Antenor Pomilio<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-09T17:49:15Z (GMT). No. of bitstreams: 1 Ferreira_AndreAugusto_D.pdf: 4648060 bytes, checksum: fec10ea5d77379b209259bd3174d9224 (MD5) Previous issue date: 2007<br>Resumo: Este trabalho propõe uma estratégia de gestão de energia, para aplicações em veículos elétricos, baseado em um sistema supervisório nebuloso que combina três diferentes fontes de suprimento, em termos de densidade de energia e de densidade de potênc
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Costa, Luzia Bouzan Oliveira. "Avaliação do ciclo de vida da produção de biogás via estação de tratamento de esgoto e uso em célula a combustível de óxido sólido." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-24102012-080923/.

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A busca pelo uso de energia renovável, bem como a mitigação dos impactos antropogênicos, desempenha importante papel no desenvolvimento da sociedade contemporânea. O uso de energia de origem renovável é uma possível solução para os problemas relacionados aos impactos ambientais, em especial, às alterações climáticas. Uma importante fonte de energia renovável é a biomassa oriunda de resíduos orgânicos que, após a digestão anaeróbia, resulta em um gás rico em metano, conhecido como biogás. Sob o ponto de vista de qualidade ambiental, o aproveitamento energético dos resíduos produzidos a partir d
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NASCIMENTO, Aldreany Pereira do. "Estudo de uma célula a combustível hidrogênio/ar de 1 kW de eletrólito membrana polimérica." Universidade Federal de Campina Grande, 2016. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/290.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-03-15T16:40:52Z No. of bitstreams: 1 ALDREANY PEREIRA DO NASCIMENTO - DISSERTAÇÃO PPGEQ 2016..pdf: 4384493 bytes, checksum: 8cf20c9f79749f12b562389c82ec5d3f (MD5)<br>Made available in DSpace on 2018-03-15T16:40:52Z (GMT). No. of bitstreams: 1 ALDREANY PEREIRA DO NASCIMENTO - DISSERTAÇÃO PPGEQ 2016..pdf: 4384493 bytes, checksum: 8cf20c9f79749f12b562389c82ec5d3f (MD5) Previous issue date: 2016-10-30<br>Capes<br>A crise do petróleo juntamente com a grande necessidade de novas fontes de energias sustentáveis leva ao desenvo
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Mignani, Andrea. "Prospettive per le future tecnologie in ambito automotive." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21457/.

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Gli ultimi decenni hanno visto un notevole incremento dell'attenzione verso temi quali i cambiamenti climatici, le energie alternative, le emissioni inquinanti e climalteranti. L'analisi riportata cerca di individuare quali tecnologie possano ragionevolmente risultare più idonee nell'affrontare e risolvere le problematiche legate, in generale, al settore dei trasporti ed, in particolare, a quello automotive. Le tecnologie analizzate riguardano veicoli dotati di tradizionali Motori a Combustione Interna (MCI), Veicoli Elettrici a Batteria (BEV) e Veicoli a Celle a Combustibile (FCV). Per ognu
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Calder, Michael Alexander. "Modeling of a Microbial Fuel Cell." Thesis, Norwegian University of Science and Technology, Department of Energy and Process Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8837.

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<p>It is clear that society worldwide must immediately begin to mitigate its environmental damage in order to sustain life on Earth. In this regard, researchers all over the global are exploring new energy efficient alternatives to power everything from cars to cell phones. The following brief describes research conducted on Microbial Fuel Cells (MFC) and its ability to utilize bacteria to produce electricity from biological masses for low energy consumer products While structurally the MFC is very similar to a Conventional Fuel Cell, the two systems have inherent differences that change th
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Buche, Silvain. "Polymer electrolyte fuel cell diagnostics." Thesis, University of Bath, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285318.

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Swedenborg, Samuel. "Modeling and Simulation of Cooling System for Fuel Cell Vehicle." Thesis, Uppsala universitet, Elektricitetslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326070.

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This report is the result of a master’s thesis project which covers the cooling system in Volvo Cars’ fuel cell test vehicle. The purpose is to investigate if the existing cooling system in the fuel cell test vehicle works with the current fuel cell system of the vehicle, in terms of sufficient heat rejection and thus sustaining acceptable temperature levels for the fuel cell system. The project also aims to investigate if it is possible to implement a more powerful fuel cell system in the vehicle and keep the existing cooling system, with only a few necessary modifications. If improvements in
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Nilsson, Henrik. "Vätgas och bränsleceller : Ny energi för Försvarsmakten?" Thesis, Swedish National Defence College, Swedish National Defence College, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-106.

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<p>The purpose of this paper is to identify the current status of fuel cell technology and to establish whether said technology is mature enough to be implemented into the Swedish Armed Forces. The question to be answered in this paper is as follows: Can hydrogen gas and fuel cells be used as an alternative source of energy within the Swedish Armed Forces?</p><p>This paper is based on theoretical studies and reports from prior research done on fuel cells. By studying these facts a predictive answer has been obtained. The answer I have come to, is that the maturity of fuel cell technology is cu
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Mirzababaei, Jelvehnaz. "Solid Oxide Fuel Cells with Methane and Fe/Ti Oxide Fuels." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1415461807.

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Kim, Hyea. "High energy density direct methanol fuel cells." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37106.

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The goal of this dissertation was to create a new class of DMFC targeted at high energy density and low loss for small electronic devices. In order for the DMFC to efficiently use all its fuel, with a minimum of balance of plant, a low-loss proton exchange membrane was required. Moderate conductivity and ultra low methanol permeability were needed. Fuel loss is the dominant loss mechanism for low power systems. By replacing the polymer membrane with an inorganic glass membrane, the methanol permeability was reduced, leading to low fuel loss. In order to achieve steady state performance, a comp
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Hull, Brent. "Fuel cell mositure and energy recovery." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/16428.

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Ospina, Alvarado Angelica Maria. "Holistic Analysis of Fuel Cells for Residential Application." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19746.

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The development of an index to compare different sources of energy is presented; the index address the appraisal of the source of energy from its sustainable performance and also using the factors that influence the user's decision making process of adopting an alternative energy. The index is used to compare the fuel cell system and the traditional grid system powered by coal fired power plants, for a typical residential unit located in the rural Appalachian region in Ohio.
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Laguna, Bercero Miguel A. "Hydrogen and fuel cells: an efficient and clean energy alternative." Revista de Química, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/100084.

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El avance tecnológico más importante de las próximas décadas pasa por el uso del hidrógeno como combustible, sustituyendo el consumo masivo de los combustibles fósiles. De esta manera, utilizando tecnologías basadas en pilas de combustible, conseguiremos sistemas energéticos más eficientes que los actuales y, además respetuosos, con el medio ambiente.<br>The most important technological development in the coming decades will be the use of hydrogen as an alternative to the widely used fossil fuels. By the use of fuel cell based technologies, it will be feasible to produce energy systems that wi
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Hedström, Lars. "Fuel Cells and Biogas." Doctoral thesis, KTH, Energiprocesser, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-13219.

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This thesis concerns biogas-operated fuel cells. Fuel cell technology may contribute to more efficient energy use, reduce emissions and also perhaps revolutionize current energy systems. The technology is, however, still immature and has not yet been implemented as dominant in any application or niche market. Research and development is currently being carried out to investigate whether fuel cells can live up to their full potential and to further advance the technology. The research of thesis contributes by exploring the potential of using fuel cells as energy converters of biogas to electric
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Troughton, Gavin L. "Anodes for the direct methanol fuel cell." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335195.

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Mwinga, Makani. "Design and development of a fuel cell power supply unit." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2524.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2017.<br>Fuel cell (FC) technology is one of the most sought-after renewable energy technology. However, the output voltage of FC stacks is inherently unstable; as such, it is of little or no use for most power supply applications. In addition to the unstable output voltage, FC stacks are susceptible to high current ripple, which can reduce the system’s life expectancy. The work carried out in order to stabilise the output voltage, and to reduce the current ripple of FC stacks involves a review of some existing c
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Aaron, Douglas Scott. "Transport in fuel cells: electrochemical impedance spectroscopy and neutron imaging studies." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34699.

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Current environmental and energy sustainability trends have instigated considerable interest in alternative energy technologies that exhibit reduced dependence on fossil fuels. The advantages of such a direction are two-fold: reduced greenhouse gas emissions (notably CO2) and improved energy sustainability. Fuel cells are recognized as a potential technology that achieves both of these goals. However, improvements to fuel cell power density and stability must be realized to make them economically competitive with traditional, fossil-based technologies. The work in this dissertation is larg
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Wang, Ying-Chin. "Using Red Blood Cells in Microbial Fuel Cell Catholyte Solution to Improve Electricity Generation." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1398945679.

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González, Guerrero MªJosé. "Enzymatic microfluidic fuel cells: from active to passive power sources." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/322082.

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Esta tesis presenta el desarrollo y la fabricación de pilas de combustibles microfluídicas para aplicaciones portátiles de baja potencia. En concreto, pilas biológicas que utilizan las enzimas en la degradación de la glucosa. El trabajo está dividido en dos secciones dependiendo de si los dispositivos fabricados son activos, es decir, los reactivos son suministrados a la micropila por bombeo (Capítulo 2 y 3). O si por el contrario los reactivos fluyen sin necesidad de mecanismos externos los dispositivos serán pasivos (Capítulo 4 y 5). En el primer capítulo de la tesis se ha llevado a cabo
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Cameli, Fabio. "Microbial Fuel Cell for Waste Water Treatment." Thesis, KTH, Skolan för kemivetenskap (CHE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-183074.

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Microbial Fuel Cell is a novel technology that can be used for a waste water treatment in order to simultaneously remove carbonaceous matter and nitrogen while producing electrical power. Even if it is not an established technology so far, MFC could be a cost effective option for waste water treatment and the major challenge of this process will be the device scale-up. Exoelectrogenic bacteria are capable of converting the chemical energy of organic matter into electrical energy by transferring the electrons produced in the oxidation to the anode electrode. This project focused on developing a
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36

Pakulytė, Giedrė. "Kuro elementai ir jų panaudojimo galimybės, aprūpinant pastatų kompleksą energija." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060620_215349-85000.

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Human’s energy demand is growing and there is a necessity to solve questions of sustainable energetics, such as security of energy supply, energy efficiency and environment protection. Possible way of the solution of these problems is new and more efficient technologies and new energy sources. Fuel cells are one of the developing and environmentally clean technologies. This master’s report is dealing with cogeneration technologies and only fuel cells are analyzed thoroughly. Most usable type of fuel cells for decentralized power and heat generation is identified and its operating principles an
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Schneider, Kenneth. "Photo-microbial fuel cells." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675704.

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Fundamental studies for the improvement of photo-microbial fuel cells (pMFCs) within this work comprised investigations into ceramic electrodes, toxicity of metal-organic frameworks (MOFs) and hot-pressing of air-cathode materials. A novel type of macroporous electrode was fabricated from the conductive ceramic Ti2AlC. Reticulated electrode shapes were achieved by employing the replica ceramic processing method on polyurethane foam templates. Cyclic voltammetry of these ceramics indicated that the application of potentials larger than 0.5 V with regard to a Ag/AgCl reference electrode results
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Saxe, Maria. "Bringing fuel cells to reality and reality to fuel cells : A systems perspective on the use of fuel cells." Doctoral thesis, KTH, Energiprocesser, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9192.

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With growing awareness of global warming and fear of political instability caused by oil depletion, the need for a society with a sustainable energy system has been brought to the fore. A promising technology often mentioned as a key component in such a system is the fuel cell technology, i.e. the energy conversion technology in focus in this thesis. The hopes and expectations on fuel cells are high and sometimes unrealistically positive. However, as an emerging technology, much remains to be proven and the proper use of the technology in terms of suitable applications, integration with societ
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MASSI, JUNIOR LUIZ. "Abrigo temporário para desabrigados em situações emergenciais, com suporte de energia elétrica a partir de células a combustível a hidrogênio." reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23513.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2015-03-03T14:44:05Z No. of bitstreams: 0<br>Made available in DSpace on 2015-03-03T14:44:05Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado em Tecnologia Nuclear)<br>IPEN/D<br>Instituto de Pesquisas Tecnológicas do Estado de São Paulo, São Paulo
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Lewis, Spenser M. "Simplified core physics and fuel cycle cost model for preliminary evaluation of LSCR fueling options." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51772.

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The Liquid Salt Cooled Reactor (LSCR) provides several potential benefits compared to pressurized water-cooled reactor systems. These include low operating pressure of the liquid salt coolant, the high burnup tolerance of the fuel, and the high operating temperatures which leads to increases in efficiency. However, due to inherently low heavy metal loading, the fuel cycle design presents specific challenges. In order to study options for optimizing the fuel design and fuel cycle, SCALE6.1 was used to create simplified models of the reactor and look at various parameters. The primary parameters
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Oedegaard, Anders. "Development and characterisation of a portable direct methanol fuel cell stack." Gerhard-Mercator-Universitaet Duisburg, 2006. http://www.ub.uni-duisburg.de/ETD-db/theses/available/duett-03012006-080812/.

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This thesis deals with the development and characterisation of a portable direct methanol fuel cell stack. In addition, calculations of the transport of methanol and water in the membrane are compared with experimentally determined values. It also includes investigations of the behaviour of single-cells and some of its components, as the anode gas diffusion layer and the anode flow-field. For the addition of methanol to the anode feed loop, a passive concept based on a permeable tube was developed and verified by both experiments and simulations.
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Wang, Chao. "A COMPUTATIONAL STUDY OF LINKING SOLID OXIDE FUEL CELL MICROSTRUCTURE PARAMETERS TO CELL PERFORMANCE." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1377786080.

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Wright, Emma Victoria. "Investigation of a novel solid oxide fuel cell interconnect." Thesis, Keele University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265019.

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Holtkamp, John Calvin. "New Formic Acid Fuel Cell Orientations to Reduce the Cost of Cell Components." Wright State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=wright1257239630.

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Still, Michael Joseph. "All-air moisture and energy recovery system for fuel cell exhaust." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17051.

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Fedock, John Andrew. "Low temperature polymer electrolyte fuel cell performance degradation." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002565.

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Copek, Tomáš. "Ukládání elektrické energie do výhřevných plynů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241877.

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This master’s thesis deals with Power to Gas technology. In this concept electrical energy is used for hydrogen production via electrolysis. Hydrogen can be injected in limited amount into natural gas grid, used for power generation via fuel cells or as a reactant for methanation process. Characteristics of hydrogen and ways of hydrogen production, storage and transport are described. Fuel cells are described as a device which uses hydrogen for power production. Crucial part of this thesis consists of a description of Power to Gas concept and a design of Power to Gas unit with electrical power
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Raji, Atanda Kamoru. "Modelling and development of fuel cell off grid power converter system." Thesis, [S.l. : s.n.], 2008. http://dk.cput.ac.za/cgi/viewcontent.cgi?article=1039&context=td_cput.

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Balogun, Sunday Julius. "Static Optimization of Fuel Cell Plug-In Hybrid Electric Vehicle." Thesis, Northern Illinois University, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10978070.

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<p> This thesis focuses on the static optimization of a fuel cell plug-in hybrid electric vehicle. The vehicle is been powered by three (3) sources of electrical energy. These sources of electrical energy are: fuel cell, supercapacitor, and lithium-ion battery. </p><p> The main target of this thesis is to make good the performance of a fuel cell plug-in hybrid electric vehicle. This will be achieved by applying static optimization method on the dynamic equations of a moving hybrid vehicle. </p><p> The optimization model of this plug-in hybrid electric vehicle (PHEV) was formulated bases on
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Sanchez, Antonio. "Energy management in electric systems fed by fuel cell stacks." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00590217.

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The growth of distributed energy resources together with the incorporation of new technologies in the generation and storage of energy are imposing new control and operational strategies. Due to its storage capability and that it is considered to be clean energy; fuel cell (FC) is one of the most promissory technologies as a stationary energy source in micro grids and also in transportation applications. Therefore, two main issues are addressed in this work; the conception, design, and setup of a fully instrumented test bench for proton exchange membrane (PEM) FC stacks and the design and expe
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