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Teses / dissertações sobre o tema "Fuel cell management system"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 6 de fevereiro de 2022

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1

Bradley, Thomas Heenan. "Modeling, design and energy management of fuel cell systems for aircraft." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26592.

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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Parekh, David; Committee Member: Fuller, Thomas; Committee Member: Joshi, Yogendra; Committee Member: Mavris, Dimitri; Committee Member: Wepfer, William. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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2

Bahrami, Milad. "Contribution to the development of a fuel cell management system." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0025.

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L'intermittence des ressources constitue le principal défi de l'utilisation de la production d'électricité à partir d'énergies renouvelables. Par conséquent, de nouveaux moyens de stockage de l'électricité sont inévitables. L'hydrogène, en tant que vecteur énergétique, peut résoudre ce problème. L'hydrogène peut être produit en utilisant l'énergie excédentaire des sources d'énergie renouvelables. C'est pourquoi une pile à combustible à membrane électrolytique polymère (PEMFC), en tant que dispositif capable de convertir directement l'énergie de l'hydrogène en électricité, est un élément import

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3

McGee, Seán. "Thermal energy management and chemical reaction investigation of micro-proton exchange membrane fuel cell and fuel cell system using finite element modelling." Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173001.

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Fuel cell systems are becoming more commonplace as a power generation method and are being researched, developed, and explored for commercial use, including portable fuel cells that appear in laptops, phones, and of course, chargers. This thesis examines a model constructed on inspiration from the myFC PowerTrekk, a portable fuel cell charger, using COMSOL Multiphysics, a finite element analysis software. As an educational tool and in the form of zero-dimensional, two-dimensional, and three-dimensional models, an investigation was completed into the geometric construction, air conditions and c

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4

Yue, Meiling. "Contribution of developing a prognostics-based energy management strategy for fuel cell hybrid system - application to a fuel cell/battery hybrid electric vehicle." Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCD029.

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Le système de propulsion hybride à pile à combustible (PàC) gagne du terrain sur le marché automobile actuel et offre une solution durable au changement climatique mondial dans le secteur des transports. Cependant, la durabilité et la fiabilité des sources d’énergie utilisées dans le système hybride sont les obstacles inévitables à sa commercialisation massive. Pour optimiser et maximiser la durée de vie du système hybride, une approche de pronostic et gestion de la santé (PHM) est mise en œuvre pour gérer et atténuer le comportement de dégradation des sources d'énergie et appliquée à un véhic

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5

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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6

Huston, Todd W. (Todd Wendell). "Production system design and cycle time reduction in a fuel cell manufacturing operation." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10910.

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Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1996, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.<br>Includes bibliographical references (leaves 104-105).<br>by Todd W. Huston.<br>M.S.

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7

McLandrich, Andrew M. "Sensorless Control of a Bidirectional Boost Converter for a Fuel Cell Energy Management System." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/34553.

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Fuel cells have the potential to provide clean power for a variety of uses including stand-alone residential power. But to increase the acceptance of fuel cells for off-grid generation, the cost of the energy management system must be greatly reduced. Of the many ways to accomplish this, this paper looks at reducing cost through topology changes and elimination of current sensors. A dual 2.5kW non-isolated bidirectional boost converter is designed and analyzed. The various bidirectional boost topologies are compared on cost and ability to meet the specifications. A sensorless average curr

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8

Ramirez, Rivera Victor Manuel. "Energy management of lossy multi-port to fuel cell-based systems." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112087/document.

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Dans de nombreux réseaux, la régulation efficace du transfert d'énergie entre les sous-systèmes de production, de stockage et d'utilisation demeure un sujet difficile à traiter. Dans cette thèse on a proposent une nouvelle stratégie pour atteindre cet objectif, ainsi que sa mise en œuvre. Le dispositif est appelé routeur d'énergie dynamique (RED), parce que, contrairement à la pratique actuelle, l'asservissement de l'écoulement de puissance se fait sans s'appuyer sur des hypothèses stationnaire. Une hypothèse clé pour le bon fonctionnement du RED est que la dissipation du système est négligeab

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9

Kroll, Douglas M. (Douglas Michael). "Using polymer electrolyte membrane fuel cells in a hybrid surface ship propulsion plant to increase fuel efficiency." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/61909.

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Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 59).<br>An increasingly mobile US Navy surface fleet and oil price uncertainty contrast with the Navy's desire to lower the amount of money spent purchasing fuel. Operational restrictions limiting fuel use are temporary and cannot be dependably relied upon. Long term te

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10

Chen, Di. "Design and implementation of microcontroller-based direct methanol fuel cell/lithium polymer battery hybrid energy management system." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/12579.

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The Direct Methanol Fuel Cell (DMFC) has been considered as one of the competitive alternatives for battery technology as it has much higher energy density, faster recharging and does not require complicated control systems like a fuel reformer or compressed gas tank as needed by a hydrogen fuel cell. However, current DMFC technology suffers from the low power density caused by low reaction rate and undesired “methanol crossover” issues, which brings a big challenge for its application in practical systems. This thesis presents a practical design and prototype development of a DMFC/battery hyb

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11

Feroldi, Diego Hernán. "Control and design of pem fuel cell-based systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2009. http://hdl.handle.net/10803/5958.

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Las pilas de combustible son muy ventajosas debido a su alta eficiencia en la conversión de energía y nula contaminación. En esta tesis se realiza un extenso estudio sobre el control y diseño de sistemas de generación eléctrica basados en pilas de combustible. El núcleo principal de la misma son los sistemas híbridos con pilas de combustible y supercapacitores como elementos almacenadores de energía, orientado a aplicaciones automotrices. La determinación del Grado de Hibridización (i.e. la determinación del tamaño de la pila de combustible y del número de supercapacitores) se realiza mediante

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12

Tichagwa, Anesu. "Micro combined heat and power management for a residential system." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/16914.

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Fuel cell technology has reached commercialisation of fuel cells in application areas such as residential power systems, automobile engines and driving of industrial manufacturing processes. This thesis gives an overview of the current state of fuel cell-based technology research and development, introduces a μCHP system sizing strategy and proposes methods of improving on the implementation of residential fuel cell-based μCHP technology. The three methods of controlling residential μCHP systems discussed in this thesis project are heat-led, electricity-led and cost-minimizing control. Simulat

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13

Zhao, Dongdong. "Control of an ultrahigh speed centrifugal compressor for the air management of fuel cell systems." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2013. http://tel.archives-ouvertes.fr/tel-01002037.

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Air compressor supplying the oxygen to the stack is an important component in the fuel cell systems. The compressor can consumes up to 20 % of the generated power in the most severe cases. The selecting of the compressor and corresponding control are directly related to the performance of the fuel cell. The size and weight of the air compressor has to be reduced to make them more feasible for automotive applications. Moreover, the control of the air compression system is also an important issue, which affects the efficiency and the safety of the fuel cell. To avoid oxygen starvation of the sta

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14

Luthringer, Kristin Lyn. "A design approach to a risk review for fuel cell-based distributed cogeneration systems." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/102.

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A risk review of a fuel cell-based distributed co-generation (FC-Based DCG) system was conducted to identify and quantify the major technological system risks in a worst-case scenario. A risk review entails both a risk assessment and a risk analysis of a designed system, and it is part of risk engineering. Thorough literature reviews and expert interviews were conducted in the field of fuel cells. A thorough literature review of the risk engineering field was also conducted. A procedure for a risk review of the FC-Based DCG System was developed. The representative system design was identi

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15

Njoya, Motapon Souleman. "Design and simulation of a fuel cell hybrid emergency power system for a more electric aircraft : evaluation of energy management schemes." Mémoire, École de technologie supérieure, 2013. http://espace.etsmtl.ca/1157/1/NJOYA_MOTAPON_Souleman.pdf.

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Dans le but de réduire la consommation de combustibles fossiles et les coûts liés à la maintenance, l’industrie aéronautique vise à remplacer la plupart des systèmes hydrauliques et pneumatiques des avions conventionnels par des systèmes électriques. Ces nouveaux avions du futur sont appelés « avion plus électrique ». Dans ces avions plus électrique, l’augmentation de la demande électrique rend l’utilisation du système de secours actuel basé sur une éolienne traditionnelle impossible. Surtout lors des atterrissages et décollages où la puissance fournie par celle-ci est presque nulle. L’une des

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16

Åkesson, Elsa, Maximilian Kempe, Oskar Nordlander, and Rosa Sandén. "Unmanned Aerial Vehicle Powered by Hybrid Propulsion System." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277115.

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I samband med den globala uppvärmningen ökar efterfrågan för rena och förnybara bränslen alltmer i dagens samhälle. Eftersom flygindustrin idag är ansvarig för samma mängd växthusgaser som all motortrafik i Sverige, skulle ett byte till en avgasfri energikälla för flygfarkoster vara ett stort framsteg. Därför har projektet genom modellering framtagit ett hybridsystem av ett batteri och en bränslecell och undersökt hur kombinationen av olika storlekar på dem presterar i en driftcykel. Då batterier har hög specifik effekt men är tunga, kompletteras de med fördel av bränsleceller, som är lättvikt

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17

Almada, Janaina Barbosa. "Modeling, Control and Management of Microgrids Operation with Renewable Sources." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11122.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>Nowadays, the distribution networks of electricity are the segment of the electrical power systems that has experienced more changes, due in particular to the presence of distributed generation and the technological advances in the areas of instrumentation, automation, measurement, information technology and comunication. This work aims to present the modelling, the control and the operation management of a group of small-scale energy resources connected to the low voltage, which coordinated form a microgrid. The microgrid energy

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18

Jayaraman, Sundar. "Business & technology strategies to promote the development and commercialization of alternative energy technologies like fuel cells." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/43119.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, February 2008.<br>Includes bibliographical references (leaves 81-82).<br>Globalization has led to the development of emerging markets and economies. With economic expansion around the globe, there is a greater energy demand to sustain this growth. Increasing energy demand has resulted in increase in energy prices and increase in emission levels. While conventional energy technologies have advantage in terms of established infrastructure and lower cost, they are inefficient and rely heavily on fossil fue

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19

Millard, David A. (David Anthony). "Strategic analysis of technical, commercial, and regulatory influences on the commercialization of hydrogen fuel cell vehicles." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104392.

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Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, 2016. In conjunction with the Leaders for Global Operations Program at MIT.<br>Thesis: S.M. in Engineering Systems, Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, 2016. In conjunction with the Leaders for Global Operations Program at MIT.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 46-47).<br>Increasing regulatory pressures are being applied to automotive manufacturers requiring them to reduce the negative impacts

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20

Folkesson, Anders. "Towards sustainable urban transportation : Test, demonstration and development of fuel cell and hybrid-electric buses." Doctoral thesis, KTH, Energiprocesser, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4721.

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Several aspects make today’s transport system non-sustainable: • Production, transport and combustion of fossil fuels lead to global and local environmental problems. • Oil dependency in the transport sector may lead to economical and political instability. • Air pollution, noise, congestion and land-use may jeopardise public health and quality of life, especially in urban areas. In a sustainable urban transport system most trips are made with public transport because high convenience and comfort makes travelling with public transport attractive. In terms of emissions, including noise, the veh

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21

Assefa, Getachew. "Environmental Systems Analysis of Waste Management : Prospects of Hydrogen Production from Waste for use in FCVs." Thesis, KTH, Industriell ekologi, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-32426.

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ORWARE, an evolving systems analysis based computer model is used to assess the performance of different waste management options from a life cycle perspective. The present version of the model consists of different submodels for transport, treatment, and disposal of different types of liquid and solid wastes and recycling of materials. Flows between submodels are described by a vector of several substances of different relevance to the system. The model calculates emissions to water and air, amount of residues returned to arable land and energy flows using the tools of life cycle ana

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22

Taylor, Rachel Jennifer. "Virtual fuel cell system." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2749.

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The purpose of this project was to build a computer model able of running virtual simulations and emulations of fuel cell (FC) systems. This was aimed at the transport market and modern built environment. The project incorporates the novel use of hardware, firmware and software operating in real-time to simulate real applications in vehicles and buildings. A fuel cell system is a complex assembly of components, all of which are all critical to its performance. To get the best from the system each of the system components must be optimized. Current practice uses prototyping of real hardware and

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23

Jullian, Gauthier. "Diagnostic robuste de pile à combustible PEM par modélisation physique et mesures d’impédance : prise en compte de conditions dynamiques et du vieillissement." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT009/document.

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La pile à combustible PEMFC est un générateur électrochimique qui présente notamment un potentiel intéressant pour des applications automobiles et dont l’utilisation pourrait contribuer à répondre aux enjeux environnementaux associés aux transports. La faible durabilité des systèmes pile en général et de la pile en particulier constitue un des verrous technologiques qui freine son déploiement. Ses conditions de fonctionnement en termes de pression, de température et d’activité des gaz étant intimement liées aux cinétiques de dégradation des composants du générateur, il est donc nécessaire de l

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24

Marx, Neigel. "Gestion énergétique et dimensionnement des systèmes hybrides multi-pile à combustible et batterie pour application au transport automobile." Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCD053/document.

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L’essor de l’électrification du secteur du transport facilite le développement de nouvelles technologies. La pile à combustible n’est pas une technologie récemment développée mais elle en profite également. Toutefois, malgré les efforts entrepris jusqu’à présent, elle reste trop couteuse et peu durable par rapport aux exigences du marché. Pour cela, augmenter le rendement du système, réduire le nombre d’auxiliaire et obtenir une meilleure compréhension des phénomènes de dégradation semblent être les pistes les plus pertinentes. Les thématiques, non centrés sur les matériaux, étudiées dans le b

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Hard, Kevin. "PEM fuel cell multi-phase system." Thesis, University of Nottingham, 2005. http://eprints.nottingham.ac.uk/13198/.

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This thesis presents an experimental investigation into the feasibility of using a functionally thermal fluid to enhance the performance of a Proton Exchange Membrane (PEM) Fuel Cell. Specifically, a fluid was developed that utilised a liquid-solid phase change to enhance heat transport within the fuel cell. Increasing the convective heat transfer coefficient could permit the use of smaller volumetric flow rates and reduce pumping power. The objective of the thermal fluid was to create isothermal conditions across a fuel cell and to reduce parasitic loadings from pumps and other components to

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Venkatagiri, Chellappan Mirunalini. "Fuel cell based battery-less ups system." Texas A&M University, 2008. http://hdl.handle.net/1969.1/86026.

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With the increased usage of electrical equipment for various applications, the demand for quality power apart from continuous power availability has increased and hence requires the development of appropriate power conditioning system. A major factor during development of these systems is the requirement that they remain environment-friendly. This cannot be realized using the conventional systems as they use batteries and/or engine generators. Among various viable technologies, fuel cells have emerged as one of the most promising sources for both portable and stationary applications. In this t

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Kivisaari, Timo. "System Studies of Fuel Cell Power Plants." Doctoral thesis, KTH, Chemical Engineering and Technology, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3226.

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<p>This thesis concerns system studies of power plants wheredifferent types of fuel cells accomplish most of the energyconversion.</p><p>Ever since William Grove observed the fuel cell effect inthe late 1830s fuel cells have been the subject or more or lessintense research and development. Especially in the USA theseactivities intensified during the second part of the 1950s,resulting in the development of the fuel cells used in theApollo-program. Swedish fuel cell activities started in themid-1960s, when ASEA (now ABB) ran a fuel cell projectdeveloping fuel cells to power submarines.</p><p>Whe

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Wongkhorsub, Chonlakarn. "Hybrid fuel cell/ejector heat pump system." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422752.

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Shaffer, Christian Edward. "Flow system modeling with applications to fuel cell systems." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4198.

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Thesis (M.S.)--West Virginia University, 2005.<br>Title from document title page. Document formatted into pages; contains xii, 111 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 100-102).

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Trueblood, Christopher P. Halpin S. Mark. "Modeling a fuel cell system fo residential dwellings." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/master's/TRUEBLOOD_CHRISTOPHER_30.pdf.

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Dickinson, Angus John. "Development of a direct methanol fuel cell system." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324802.

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Ceschia, Adriano. "Méthodologie de conception optimale de chaines de conversion d’énergie embarquées." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPAST023.

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Les travaux proposés dans cette thèse s’inscrivent dans le cadre de l’électrification des systèmes embarqués au travers du développement de nouvelles chaines hybrides de conversion d’énergie ; celle-ci se fondant sur de nouvelles motorisations et combinaison de sources d’énergies complémentaires. Ces systèmes présentent de nombreux degrés de liberté, tant vis-à-vis des paramètres de ses constituants, que des réglages des lois de contrôle qui leurs sont associées. L’optimisation (technico-économique) pertinente de ces chaines de conversion complexes repose donc sur l’aptitude des méthodes de re

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Rosli, Masli Irwan. "Water management in PEM fuel cell gass distributor plates." Thesis, University of Leeds, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574597.

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Proton exchange membrane fuel cells are well known to be prormsmg alternative energy converters because of their advantages in power efficiency and low emission. One of the major components in a proton exchange membrane fuel cell is the gas flow-field channels where the reactant gases are distributed to the catalyst layers and the liquid water is accumulated. In this investigation, a fuel cell test station was designed and fabricated in order to perform experimental investigations on the proton exchange membrane fuel cell. Direct visualisation techniques have been applied in the experimental i

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34

Davies, Benjamin. "Enhancing fuel cell lifetime performance through effective health management." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/36322.

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Hydrogen fuel cells, and notably the polymer electrolyte fuel cell (PEFC), present an important opportunity to reduce greenhouse gas emissions within a range of sectors of society, particularly for transportation and portable products. Despite several decades of research and development, there exist three main hurdles to full commercialisation; namely infrastructure, costs, and durability. This thesis considers the latter of these. The lifetime target for an automotive fuel cell power plant is to survive 5000 hours of usage before significant performance loss; current demonstration projects ha

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Zhou, Yang. "Predictive energy management for fuel cell hybrid electric vehicle." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCA020.

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Les véhicules électriques hybrides à pile à combustible ont été largement considérés comme la substitution prometteuse par rapport aux véhicules traditionnels à moteur à combustion interne. Pour réduire les coûts d'exploitation des véhicules, une solution pratique au stade actuel consiste à utiliser efficacement et sainement les systèmes de propulsion hybrides. Une telle tâche peut être remplie via des stratégies de gestion d'énergie fiables, qui coordonnent les sorties de plusieurs sources d'énergie pour satisfaire la demande de puissance des véhicules.Dans un tel contexte, cette thèse vise à

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Wang, Xiaoyang. "Aircraft fuel system prognostics and health management." Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/7214.

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This thesis contains the specific description of Group Design Project (GDP) and Individual Research Project (IRP) that are undertaken by the author and form part of the degree of Master of Science. The target of GDP is to develop a novel and unique commercial flying wing aircraft titled FW-11. FW-11 is a three-year collaborative civil aircraft project between Aviation Industry Corporation of China (AVIC) and Cranfield University. According to the market analysis result conducted by the author, 250 seats capacity and 7500 nautical miles were chosen as the design targets. The IRP is the further

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Tsay, David 1967. "Feasibility study of fuel cell residential energy stations." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17002.

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Thesis (S.M.M.O.T.)--Massachusetts Institute of Technology, Sloan School of Management, Management of Technology Program, 2003.<br>Includes bibliographical references.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Electricity provisioning has historically satisfied demand by centralized generation and pervasive distribution through an extensive transmission and distribution network. Once demand increases beyond a fixed threshold, however, the capacity of the generation, transmission and d

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Bertini, Lorenzo. "Modeling and Optimization of a Fuel Cell Hybrid System." Thesis, KTH, Skolan för kemivetenskap (CHE), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-51143.

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The purpose of this project was the modeling, optimization and prediction of a hybrid system composed of a fuel cell, a dc-dc converter and a supercapacitor in series. Lab tests were performed for each device to understand their behavior, and then each one was modeled using software (Simulink). The validation of the model was done by comparing its results with measured data; finally the model was used for the optimization and the prediction of the hybrid system

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Osamudiamen, Ose Micah Ose Micah. "Assessment of humidity management effects on PEM fuel cell performance." Thesis, KTH, Energiteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-34575.

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The electrical energy output and the performance of a PEM fuel cell is dependent on the ion transfer in the fuel cell. The ion transport mechanism in the electrolyte cell membrane is dependent on the charge site in the membrane. The charge sites increases with an increase in the hydration of the membrane, this shows that the water content of the membrane is important to facilitate the ion transfer in the electrolyte membrane, hence proper management of water is essential to the operation of the PEM fuel cell system, to achieve these a proper balance of the water transport within the PEM fuel c

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Greenwell, Wesley D. "Real-time power management of a fuel cell/ultracapacitor hybrid." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1219848515/.

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Fly, Ashley. "Thermal and water management of evaporatively cooled fuel cell vehicles." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/19484.

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Proton Exchange Membrane Fuel Cells (PEMFCs) present a promising alternative to the conventional internal combustion engine for automotive applications because of zero harmful exhaust emissions, fast refuelling times and possibility to be powered by hydrogen generated through renewable energy. However, several issues need to be addressed before the widespread adoption of PEMFCs, one such problem is the removal of waste heat from the fuel cell electrochemical reaction at high ambient temperatures. Automotive scale fuel cells are most commonly liquid cooled, evaporative cooling is an alternative

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Zhou, Tao. "Commande et supervision énergétique d’un générateur hybride actif éolien incluant du stockage sous forme d’hydrogène et des super-condensateurs pour l’intégration dans le système électrique d’un micro réseau." Thesis, Ecole centrale de Lille, 2009. http://www.theses.fr/2009ECLI0010/document.

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Un système hybride multi-source est étudié dans cette thèse pour la génération dispersée basée sur des sources d’énergie renouvelable et des systèmes de stockage d’énergie. Il comprend un générateur éolien comme source d’énergie primaire, des super-condensateurs comme système de stockage à dynamique rapide, des piles à combustible et des électrolyseurs comme système de stockage sur le long terme sous forme d’hydrogène. Ils sont tous connectés à un bus continu commun et un onduleur est utilisé pour la connexion du système entier au réseau. Dans ce mémoire, nous avons présenté la modélisation du

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Oheda, Hakim. "Artificial neural network control strategies for fuel cell hybrid system." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/7964.

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The greening of air transport is the driver for developing technologies to reduce the environmental impact of aviation with the aim of halving the amount of carbon dioxide (COଶ) emitted by air transport, cutting specific emissions of nitrogen oxides (NO୶) by 80% and halving perceived noise by the year 2020. Fuel Cells (FC) play an important role in the new power generation field as inherently clean, efficient and reliable source of power especially when comparing with the traditional fossil-fuel based technologies. The project investigates the feasibility of using an electric hybrid system con

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Bessette, Norman F. II. "Modeling and simulation for solid oxide fuel cell power system." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/17824.

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Lodge, Richard. "Experimental characterization of a 2.5 kW PEM fuel cell system." Connect to this title online, 2005. http://hdl.handle.net/1811/312.

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Thesis (Honors)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formattted into pages: contains 47 p.; also includes graphics. Includes bibliographical references (p. 47). Available online via Ohio State University's Knowledge Bank.

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Chen, Yu-jie, and 陳郁潔. "Power Management System of Fuel Cell Hybrid Vehicle." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/69219332268185585681.

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碩士<br>國立臺南大學<br>綠色能源科技研究所碩士班<br>99<br>This study designs a hybrid vehicle with PEMFC and Li-ion battery, and discusses its dynamic behavior and overall performance. Fuel cell voltage though DC/DC converter with Li-ion battery provides power to motor, and force comes from permanent magnet synchronous motor (PMSM), motor provides the power through the gearbox, drive shaft and differential to the vehicle wheels. This study describes PEMFC, Li-ion battery, PMSM and vehicle structure of numerical model by using MATLAB/Simulink, and designs power management modes depending on different using of pow

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Kuo, Po-Chen, and 郭柏辰. "Control and Power Management of a Stationary Fuel Cell Hybrid System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/12489187572216487682.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>100<br>This thesis proposes robust control and power management strategy for a 6kW stationary fuel cell hybrid power system to improve system stability and efficiency and to reduce fuel consumptions. The thesis deals with a 6kW stationary hybrid fuel cell system that was developed by a Taiwanese company M-Field. The 6kW system consist of two PEMFC modules, batteries and electrical components to form a parallel hybrid power system. The system was designed for telecom base stations to provide uninterruptible power during emergency power failures. First, the batteries

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Bahr, Matthias, Sönke Gößling, Niklas Nickig, and Peter Beckhaus. "2-D + 1-D PEM fuel cell model for the integration in fuel cell system simulations." 2019. https://monarch.qucosa.de/id/qucosa%3A36184.

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Ziel dieser Arbeit ist es, eine simulationsbasierte Untersuchung des Betriebs eines PEM-Brennstoffzellensystems mit besonderem Fokus auf den Wasserhaushalt zu ermöglichen. In PEM-Brennstoffzellen sind die Wechselwirkungen in Bezug auf den Feuchtehaushalt z.B. von Transportmechanismen, Degradation und Leistung abhängig. Im PEM-Brennstoffzellensystem werden die Wechselwirkungen der Feuchte durch eine mögliche Rezirkulation und/oder eine passive Befeuchtung der Kathode erweitert, Um diese Abhängigkeiten korrekt darzustellen, wurde ein PEM-Brennstoffzellen Stack-Modell entwickelt, das einerseits e

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Cheng, Mei-chih, and 鄭美智. "Design and Imprementation of Power Management System for Fuel Cell Electric Vehicles." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/72746348525820298489.

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碩士<br>國立高雄第一科技大學<br>電子與資訊工程研究所<br>99<br>This thesis proposes a power management system for fuel cell electric vehicles (FCEV). The fuel cell electric vehicle consists of fuel cell modules, DC/DC step-up converter, LiFePO4 battery, inverter and solar cells. The fuel cell modules provides the main power of electric vehicle, enhance output voltage to 365V used of DC/DC step-up converter, and stabilize the output voltage, at the same time the lithium iron phosphate battery pack and provide energy to inverter. Solar cells as auxiliary power supplies, provides use of other parts of the FCEV. By a mi

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Tsai, Ming-you, and 蔡銘佑. "Design and manufacture of hybrid fuel cell electrically assisted bicycle management system." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/6t38sf.

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碩士<br>國立虎尾科技大學<br>動力機械工程研究所<br>94<br>The aim of this research is to improve the performance of a fuel cell electric bicycle, and try to solve the classic problems of the necessity of a big power stack, high cost and short cruise distance. Hence, a system integrated of manpower, fuel cells and auxiliary batteries was created, which the fuel cells and auxiliary battery were connected in parallel, battery recharging will be carried out during the constant speed and deceleration periods. This system can fulfill the requirement of cycling, and reduce the required fuel cells power to meet the practi

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