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Relevant bibliographies by topics / PEM FC

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Journal articles
Dissertations / Theses
Book chapters
Conference papers
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Academic literature on the topic 'PEM FC'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "PEM FC"

1

Kraytsberg, Alexander, and Yair Ein-Eli. "PEM FC with improved water management." Journal of Power Sources 160, no. 1 (September 2006): 194–201. http://dx.doi.org/10.1016/j.jpowsour.2005.12.074.

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Gavello, Gianluigi, Elisa P. Ambrosio, Ugo A. Icardi, Stefania Specchia, Carlotta Francia, Nerino Penazzi, and Vito Specchia. "Effect of Freezing Conditions on PEM-FC Components." ECS Transactions 17, no. 1 (December 18, 2019): 359–68. http://dx.doi.org/10.1149/1.3142765.

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Ren, Yuan, Zhikun Ni, Huili Xu, Zhidan Zhong, and Tianyu Luo. "Wavelet Packet Transform based Fault Diagnosis for PEM FC." Advances in Energy Engineering 5 (2017): 1. http://dx.doi.org/10.14355/aee.2017.05.001.

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Koch, Reinhold, Eduardo López, Núria J. Divins, Miguel Allué, Andreas Jossen, Jordi Riera, and Jordi Llorca. "Ethanol catalytic membrane reformer for direct PEM FC feeding." International Journal of Hydrogen Energy 38, no. 14 (May 2013): 5605–15. http://dx.doi.org/10.1016/j.ijhydene.2013.02.107.

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Notter, Dominic A., Katerina Kouravelou, Theodoros Karachalios, Maria K. Daletou, and Nara Tudela Haberland. "Life cycle assessment of PEM FC applications: electric mobility and μ-CHP." Energy & Environmental Science 8, no. 7 (2015): 1969–85. http://dx.doi.org/10.1039/c5ee01082a.

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Steidl, Eduardo Matias dos Santos, Bruna Franciele da Trintade Gonçalves, Nathalia De Morais Rockenbach, Adriane Schmidt Pasqualoto, and Renata Mancopes. "EFEITOS DE UM PROGRAMA DE TERAPIA MANUAL SOBRE A FUNÇÃO RESPIRATÓRIA E QUALIDADE DE VIDA DE INDIVÍDUOS COM DOENÇA PULMONAR OBSTRUTIVA CRÔNICA (DPOC)." Revista Contexto & Saúde 20, no. 38 (June 30, 2020): 210–16. http://dx.doi.org/10.21527/2176-7114.2020.38.210-216.

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Objetivo: investigar os efeitos da terapia manual (TM) sobre a função respiratória e qualidade de vida de indivíduos com DPOC. Métodos: foram avaliados 18 indivíduos com idade média 66,06±8,86 anos, 61,1% (11) homens e %VEF1 médio 40,28±16,73 após-programa de TM. As medidas de desfecho foram: frequência cardíaca (FC), frequência respiratória (FR), saturação periférica de oxigênio (SpO2), pressão inspiratória (PIM) e expiratória (PEM) máximas, sensação de dispneia (MRC) e qualidade de vida (SGRQ). Resultados: houve diferença significativa para FC (p=0,04), FR (p=0,007), SpO2 (p<0,0001), PIM e %PIM (p<0,0001), PEM e %PEM (p=0,001). Na qualidade de vida os domínios sintomas (p=0,001), impacto (p=0,001) e pontuação total (p=0,001) diferiram antes e após o programa. Conclusão: o programa de TM melhorou os parâmetros vitais, aumentou a força muscular respiratória e interferiu positivamente na qualidade de vida.

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Riccardi, Matteo, Alessandro d’Adamo, Andrea Vaini, Marcello Romagnoli, Massimo Borghi, and Stefano Fontanesi. "Experimental Validation of a 3D-CFD Model of a PEM Fuel Cell." E3S Web of Conferences 197 (2020): 05004. http://dx.doi.org/10.1051/e3sconf/202019705004.

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The growing energy demand is inevitably accompanied by a strong increase in greenhouse gas emissions, primarily carbon dioxide. The adoption of new energy vectors is therefore seen as the most promising countermeasure. In this context, hydrogen is an extremely interesting energy carrier, since it can be used as a fuel in both conventional energy systems (internal combustion engines, turbines) and in Fuel Cells (FC). In particular, PEM (Polymeric Electrolyte Membrane) FC are given growing attention in the transportation sector as a Life-Cycle viable solution to sustainable mobility. The use of 3D CFD analysis of for the development of efficient FC architectures is extremely interesting since it can provide a fast development tool for design exploration and optimization. The designer can therefore take advantage of a robust and accurate modelling in order to define and develop fuel cell systems in a more time-efficient and cost-efficient way, to optimize their performance and to lower their production costs. So far, studies available in the scientific literature lack of quantitative validation of the CFD simulations of complete PEM fuel cells against experimental evidence. The proposed study presents a quantitative validation of a multi-physics model of a Clearpak PEM cell. The chemistry and physics implemented in the methodology allow the authors to obtain both thermal and electrical results, characterizing the performance of each component of the PEM. The results obtained, compared with the experimental polarization curve, show that the model is not only numerically stable and robust in terms of boundary conditions, but also capable to accurately characterize the performance of the PEM cell over almost its entire polarization range.

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Abdul-Redah, Tyno, Frédéric Hasché, Rulle Reske, and Peter Strasser. "Mass Spectrometry Coupled PEM-FC Operated with H2 and D2." Zeitschrift für anorganische und allgemeine Chemie 638, no. 10 (August 2012): 1634. http://dx.doi.org/10.1002/zaac.201204135.

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Holgado, Marina, and David Alique. "Preliminary Equipment Design for On-Board Hydrogen Production by Steam Reforming in Palladium Membrane Reactors." ChemEngineering 3, no. 1 (January 15, 2019): 6. http://dx.doi.org/10.3390/chemengineering3010006.

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Hydrogen, as an energy carrier, can take the main role in the transition to a new energy model based on renewable sources. However, its application in the transport sector is limited by its difficult storage and the lack of infrastructure for its distribution. On-board H2 production is proposed as a possible solution to these problems, especially in the case of considering renewable feedstocks such as bio-ethanol or bio-methane. This work addresses a first approach for analyzing the viability of these alternatives by using Pd-membrane reactors in polymer electrolyte membrane fuel cell (PEM-FC) vehicles. It has been demonstrated that the use of Pd-based membrane reactors enhances hydrogen productivity and provides enough pure hydrogen to feed the PEM-FC requirements in one single step. Both alternatives seem to be feasible, although the methane-based on-board hydrogen production offers some additional advantages. For this case, it is possible to generate 1.82 kmol h−1 of pure H2 to feed the PEM-FC while minimizing the CO2 emissions to 71 g CO2/100 km. This value would be under the future emissions limits proposed by the European Union (EU) for year 2020. In this case, the operating conditions of the on-board reformer are T = 650 °C, Pret = 10 bar and H2O/CH4 = 2.25, requiring 1 kg of catalyst load and a membrane area of 1.76 m2.

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Patsios, Charalampos, M. Antonakopoulos, and Antonios G. Kladas. "PEM Fuel Cell Integration in a Hybrid Renewable Energy-Based Power System." Materials Science Forum 792 (August 2014): 299–304. http://dx.doi.org/10.4028/www.scientific.net/msf.792.299.

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This paper proposes a control methodology for the reliable integration of a proton exchange membrane fuel cell (PEMFC) into a hybrid generation system for stand-alone power applications. The system employs a wind generator (WG) and photovoltaic (PV) arrays as main energy sources while the fuel cell (FC) is included for supplying excess power demand. An ultra-capacitor (UC) bank is also implemented in order to cover rapid changes of both load demand and power supply due to changes in wind speed or solar radiation. The system operation is based not only on the supply-demand equilibrium but also includes concerns of FC long-term durability as well as actual constraints regarding electrolyzer operation and considerations of energy efficiency. The system performance is evaluated on a 24-hour operating time period basis under highly-varying load conditions. A particular control technique is proposed for power flow regulation ensuring FC life extension, system efficiency optimization and uninterrupted supply of demand.

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More sources

Dissertations / Theses on the topic "PEM FC"

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Hashmi, Syed Mushahid Hussain. "Cooling Strategies for PEM FC Stacks." Hamburg Helmut-Schmidt-Universität, Bibliothek, 2010. http://d-nb.info/1001185463/34.

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Hashmi, Syed Mushahid Hussain [Verfasser]. "Cooling Strategies for PEM FC Stacks = Konzepte zur Kühlung von PEM-Brennstoffzellen / Syed Mushahid Hussain Hashmi." Hamburg : Helmut-Schmidt-Universität, Bibliothek, 2010. http://d-nb.info/1001185463/34.

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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 compositions, and product materials with a best case scenario completed that summarizes the results identified. On the basis of the results of this research, it can be concluded that polyoximetylen and high-density polyethylene were considered as possible materials for the majority of the product, though a more thorough investigation is needed. Air flow of above 10 m/s, air water vapour mass fraction below 50% and initial temperature between 308K and 298K was considered in this best scenario. Suggestions on future expansions to this project are also given in the conclusion.

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Gatton, Tim. "Using Telemetry Front-end Equipment and Network Attached Storage Connected to Form a Real-time Data Recording and Playback System." International Foundation for Telemetering, 2004. http://hdl.handle.net/10150/605316.

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International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California
The use of traditional telemetry decommutation equipment can be easily expanded to create a real-time pulse code modulation (PCM) telemetry data recorder. However, there are two areas that create unique demands where architectural investment is required: the PCM output stage and the storage stage. This paper details the efforts to define the requirements and limits of a traditional telemetry system when used as a real-time, multistream PCM data recorder with time tagging.

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Baldelli, Nicola, and Hakim Rezki. "Una Casa per la Salute Nuovo edificio per poliambulatori AUSL e sede Croce Rossa a Meldola (FC)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23452/.

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La tesi riguarda il progetto un nuovo edificio nel complesso “Istituzione ai Servizi Sociali “Davide Drudi” di Meldola (FC), destinato a ospitare servizi poliambulatoriali dell’AUSL e la sede della Croce Rossa locale. Queste funzioni oggi sono dislocate all’interno di altri edifici dell’Istituto, in spazi separati e poco adeguati, in particolare dal punto di vista della gestione delle attività e della fruizione da parte degli utenti. Queste criticità hanno richiesto di trasferire in un nuovo edificio i poliambulatori e la sede CRI, anche in vista del loro potenziamento, previsto dalle strategie che sta adottando la Regione Emilia Romagna nel campo della sanità pubblica.L’intervento si concentra sul lotto inedificato di proprietà del comune di Meldola e collocato a est del Complesso “Drudi”. Oltre al nuovo edificio, l’intervento prevede un’elisuperficie destinata alla sosta dell’elisoccorso – specificamente richiesta dalla committenza - con un accesso diretto dai locali destinati al personale della Croce Rossa. Si è inoltre ampliata l’area destinata al parcheggio delle auto, estendendolo nella porzione sud del lotto, in prossimità del nuovo edificio, per soddisfare le esigenze dei poliambulatori. L’intervento si propone quindi di liberare gli spazi attualmente occupati impropriamente dagli ambulatori all’interno dell’edificio destinato a RSA e di realizzare così una nuova “Casa della salute” a servizio del territorio, organizzata in modo razionale e dimensionata adeguatamente per poter erogare una più ampia offerta di prestazioni sanitarie ai cittadini.

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Marrocchella, Michele. "il processo edilizio in contesti vincolati. Progetto per un piccolo teatro all'interno del castello di Gatteo (FC)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Nella tesi è stato analizzato il processo edilizio in contesti vincolati, al fine di progettare un piccolo teatro all’interno del castello di Gatteo (FC). Tale iter, inizia ripercorrendo i mutamenti architettonici, che ha subito il teatro, dai suoi albori fino ai giorni nostri. Inoltre è stata fatta una valutazione storica del sito dove verrà ubicata la nuova costruzione, al fine di rendere la progettazione architettonica coerente con esso. Per il dimensionamento delle geometrie del fabbricato ci si è attenuti al Decreto del Ministero dell'Interno 19 agosto 1996 (locali pubblico spettacolo) che ne regola la capienza massima, il numero delle vie di fuga e le dimensioni di esse. Per il dimensionamento strutturale, avvenuto nel rispetto dell’NTC 2018, si è optato per una struttura in acciaio, caratterizzata da capriata e con solai in lamiera grecata collaborante. Infine sono stati prodotti gli elaborati grafici di piante, prospetti, dettagli costruttivi e render.

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Morelli, Giulia. "Analisi e rifunzionalizzazione dell'edificio ex Caserma dei Carabinieri di Meldola (FC) ad uso comunità alloggio per anziani." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Il progetto preliminare realizzato nella tesi, prevede la rifunzionalizzazione dell' edifico ex Caserma dei Carabinieri, in una Comunita' Alloggio per anziani. L'intervento è incentrato sul recupero architettonico, sull'adeguamento igienico-sanitario e al dimensionamento degli spazi della nuova attivita' attraverso l'uso delle normative vigenti. Particolare attenzione è stata data al progetto funzionale nella fase di metaprogettazione.

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Arfelli, Lorenza. "Rilievo digitale integrato come strumento d’indagine per la documentazione del patrimonio architettonico. Applicazioni sulla Porta Fiorentina di Terra del Sole (FC)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21655/.

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Lo studio svolto in tesi affronta metodi e tecniche digitali di rilievo e rappresentazione del patrimonio architettonico, quali fonti di documentazione per i Beni Culturali. Il caso di studio affrontato è Porta Fiorentina della cinta di Terra del Sole, che appare di particolare interesse in quanto consente sia di descrivere e ottimizzare alcune applicazioni delle tecniche digitali, sia di analizzare gli impieghi dei modelli 3D ottenuti come documentazione e studio di un’architettura urbana. Sono state quindi individuate e applicate metodologie di rilievo ritenute maggiormente idonee in termini di precisione, accuratezza e finalità d’impiego per la documentazione del Bene; i modelli 3D sono stati sviluppati in base alle caratteristiche morfologiche del caso di studio, con l’obiettivo di ottenerne una restituzione accurata. Tali tecniche si avvalgono di strumentazioni con sensori che forniscono dati compatibili e integrabili, al fine di minimizzare l’incertezza legata alla misura in fase di rilievo e modellazione digitale. In questo modo è stato possibile migliorare la qualità delle informazioni complessive e avere una più ampia conoscenza dell’oggetto. I risultati ottenuti rendono evidenti le potenzialità delle tecniche di rilievo digitale relative alla restituzione geometrica e materica dell’oggetto; parallelamente la forma e le dimensioni, per sua natura “collaborante” rispetto alle tecniche di rilievo, unite alle condizioni di illuminazione naturale, fanno emergere alcune criticità che hanno portato a importanti applicazioni di rappresentazione per i modelli 3D, al fine di rendere omogenei i livelli di documentazione ottenuti nei vari ambienti. Le possibilità e limiti delle tecniche di rilievo digitale sono stati sperimentati e valutati criticamente a partire dai risultati ottenuti, mettendo in evidenza come l’elaborazione delle numerose informazioni costituisca un’esaustiva documentazione e un valido supporto interpretativo-comunicativo del bene architettonico.

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Cortezzi, Virginia. "Analisi dei dati idrologici e pluviometrici relativi all'invaso di Ridracoli (FC) per la stima delle variazioni climatiche e del regime dei flussi." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8994/.

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Maestri, Francesca. "Analisi idrologiche ed idrauliche per la valutazione di fattibilità di uno scolmatore di piena lungo il Rio Ronco (FC) a difesa dell'abitato di Vecchiazzano." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Ad oggi, Il servizio tecnico di bacino Romagna, in contatto con l’Agenzia regionale di Protezione civile,gli enti locali e gli altri servizi tecnici di bacino della Regione Emilia-Romagna, sta cercando di contrastare gli effetti negativi dei cambiamenti climatici. L’elaborato presenta lo studio di un progetto ancora in fase embrionale, volto al miglioramento delle condizioni di sicurezza idraulica del territorio circostante il Rio Ronco di Vecchiazzano (FC). Osservando che nel tratto a monte e a valle dell'abitato di Vecchiazzano sono presenti notevoli criticità manifestatesi ripetutamente negli ultimi anni, si è ipotizzato di inserire un by-pass che, opportunamente dimensionato, permetta di deviare verso il fiume Rabbi parte delle portate di piena in arrivo al Ronco.

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Book chapters on the topic "PEM FC"

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Kramm, Ulrike I., Peter Bogdanoff, and Sebastian Fiechter. "Polymer Electrolyte Membrane Fuel Cells (PEM-FC) and Non-noble Metal Catalysts for Oxygen Reduction." In Fuel Cells and Hydrogen Production, 343–86. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4939-7789-5_153.

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Kramm, Ulrike I., Peter Bogdanoff, and Sebastian Fiechter. "Polymer Electrolyte Membrane Fuel Cells (PEM-FC) and Non-noble Metal Catalysts for Oxygen Reduction." In Fuel Cells, 519–75. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5785-5_16.

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Kramm, Ulrike I., Peter Bogdanoff, and Sebastian Fiechter. "Polymer Electrolyte Membrane Fuel Cells (PEM-FC) polymer electrolyte membrane fuel cell (PEMFC) and Non-noble Metal Catalysts for Oxygen Reduction polymer electrolyte membrane fuel cell (PEMFC) non-noble metal catalysts for oxygen reduction." In Encyclopedia of Sustainability Science and Technology, 8265–307. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_153.

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Ivanov, Vitaly, Anton Yegorov, Alena Wozniak, Ol’ga Zhdanovich, Marina Bogdanovskaya, and Elena Averina. "Perspective Non-Fluorinated and Partially Fluorinated Polymers for Low-Temperature PEM FC." In Proton Exchange Membrane Fuel Cell. InTech, 2018. http://dx.doi.org/10.5772/intechopen.71250.

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"Dynamic Characteristics of a PEM-FC/Woody Biomass Engine Hybrid Micro-grid." In Power Systems, 153–68. London: Springer London, 2009. http://dx.doi.org/10.1007/978-1-84800-340-8_9.

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Kamble, Shailesh D., Nileshsingh V. Thakur, and Preeti R. Bajaj. "Fractal Coding Based Video Compression Using Weighted Finite Automata." In Research Anthology on Recent Trends, Tools, and Implications of Computer Programming, 232–52. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-3016-0.ch011.

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Main objective of the proposed work is to develop an approach for video coding based on Fractal coding using the weighted finite automata (WFA). The proposed work only focuses on reducing the encoding time as this is the basic limitation why the Fractal coding not becomes the practical reality. WFA is used for the coding as it behaves like the Fractal Coding (FC). WFA represents an image based on the idea of fractal that the image has self-similarity in itself. The plane WFA (applied on every frame), and Plane FC (applied on every frame) coding approaches are compared with each other. The experimentations are carried out on the standard uncompressed video databases, namely, Traffic, Paris, Bus, Akiyo, Mobile, Suzie etc. and on the recorded video, namely, Geometry and Circle. Developed approaches are compared on the basis of performance evaluation parameters, namely, encoding time, decoding time, compression ratio, compression percentage, bits per pixel and Peak Signal to Noise Ratio (PSNR). Though the initial number of states is 256 for every frame of all the types of videos, but we got the different number of states for different frames and it is quite obvious due to minimality of constructed WFA for respective frame. Based on the obtained results, it is observed that the number of states is more in videos namely, Traffic, Bus, Paris, Mobile, and Akiyo, therefore the reconstructed video quality is good in comparison with other videos namely, Circle, Suzie, and Geometry.

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Conference papers on the topic "PEM FC"

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Ciancetta, Fabrizio, Antonio Ometto, and Nicola Rotondale. "Supercapacitor to provide current step variation in FC PEM." In 2007 International Conference on Clean Electrical Power. IEEE, 2007. http://dx.doi.org/10.1109/iccep.2007.384251.

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Sattler, G., and H. Pommer. "Storage of Reactants For Pem Fc Systems Aboard Submarines." In Warship 96 - Naval Submarines 5. RINA, 1996. http://dx.doi.org/10.3940/rina.warship.1996.14.

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Barchewitz, Lukas P., and Joerg R. Seume. "Conceptual Analysis of Air Supply Systems For In-Flight PEM-FC." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90688.

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To cover the increasing demand of on-board electrical power and for further reduction of emissions, the conventional auxiliary power unit (APU) shall be replaced by a fuel cell system. The main components are a compressor-turbine unit, a kerosene reformer, and the fuel cell. Polymer exchange membrane fuel cells (PEM-FC) are favoured because of their currently advanced level of development. During in-flight operation, the inlet conditions of the PEM-FC system must be kept constant in order to avoid mechanical and thermal damage of the membrane and to ensure low levels of pressure fluctuations in the reformer section. A centrifugal compressor is chosen for pressurization of the system. The advantages of turbomachinery are low specific weight, high efficiency, and good controllability by inlet guide vanes and/or adjustable diffuser vanes. To drive the compressor, a radial turbine is used so that the air supply system resembles the turbocharger for a combustion engine (Fig. 1). A steady state thermodynamic evaluation of the entire system is carried out to identify an optimal system configuration that covers the large range of pressure, temperature, and humidity of ground operation of the aircraft in various regions on the earth as well as take-off, cruise, and landing. A catalytic combustion chamber is located between the PEM-FC and the radial turbine. In this combustion chamber, the hydrogen which is not used in the fuel cell is used to raise the turbine inlet temperature (TIT) and thus the mechanical power delivered by the turbine. To overcome an additional pressure loss of the reformer section, which occurs in the anode stream, an additional low-pressure-ratio compressor is used. The result is a highly thermally integrated PEM-FC system with three centrifugal turbomachines.

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Ciancetta, F., A. Ometto, and N. Rotondale. "Minimum supercapacitor choice to provide current step variation in FC PEM." In 2007 International Aegean Conference on Electrical Machines and Power Electronics (ACEMP) and Electromotion '07. IEEE, 2007. http://dx.doi.org/10.1109/acemp.2007.4510484.

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Rossetti, Ilenia, Cesare Biffi, Lucio Forni, Gian Franco Tantardini, Giuseppe Faita, Mario Raimondi, Edoardo Vitto, and Davide Alberti. "Integrated 5 kWe + 5 kWt PEM-FC Generator From Bioethanol: A Demonstrative Project." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33049.

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A power unit constituted by a reformer, a H2 purification section and a fuel cell is being installed c/o the Dept. of Physical Chemistry and Electrochemistry of Universita` degli Studi di Milano, on the basis of a collaboration with Helbio S.A. (Hydrogen and Energy Production Systems, supplier) and the support of some sponsors (Linea Energia S.p.A., Parco Tecnologico Padano and Provincia di Lodi). The system is suitable to obtain 5 kWelectric (a.c.) + 5 kWthermal (hot water at 70°C) as peak output. H2 is produced by steam reforming (SR) of second generation bioethanol, obtainable by different non-food competitive biomass. The assessment of the effect of biomass nature and of the consequent different impurities left in the produced bioethanol is part of the experimentation, together with the evaluation of the impact of bioethanol production cost on the final energy cost. Furthermore, the effect of different ethanol/steam ratios will be taken into account to lighten as much as possible the energy demanding ethanol dehydration process. The former point focuses on catalyst life, imposing careful ethanol characterisation and proper catalyst formulation, whereas the latter is connected with the overall energetic efficiency and economic sustainability. Indeed, the reforming process requires co-feeding of water, opening the way to the research of different, cheaper, ethanol purification strategies, leading to lower ethanol concentration with respect to the azeotrope. The reformate is purified from CO down to a concentration below 20 ppm, suitable to feed the proton exchange membrane fuel cells (PEMFC) stack integrated in the fuel processor. This result is achieved by feeding it to two water gas shift reactors, connected in series and operating at high and low temperature, respectively. The expected CO concentration in the outcoming gas is ca. 1 vol% and the final CO removal to meet the specifications is accomplished by selective methanation. The purified H2 is fed to a 5 kWe PEMFC stack, which should have an expected overall efficiency around 80% (including thermal output). The main goal of the present project is to check system performance under widely different operating conditions and load, to verify the effectiveness of the proposed technology and to suggest adequate improvements. Different operating conditions are under evaluation as for ethanol origin, purity, concentration, temperature and space velocity of every reaction step, so to obtain the best compromise between H2 yield, power output and operating costs.

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Meunier, Jean-Luc. "Bottom-up Thermal Plasma Approach for Graphene: Tuning catalyst materials for PEM-FC." In The 3rdInternational Conference on Energy Harvesting, Storage, and Transfer. Avestia Publishing, 2019. http://dx.doi.org/10.11159/ehst19.1.

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Minutillo, Mariagiovanna, and Elio Jannelli. "Thermochemical Modelling and Analysis of a Compact Reforming System for PEM FC Application." In ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2005. http://dx.doi.org/10.1115/fuelcell2005-74123.

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The main objective of this study is to foresee the performance of a PEM fuel cell generator operating as an emergency backup power system. The fuel cell generator is fuelled by hydrogen supplied by a compact reforming system. The reforming system must be able to use a carbon-based fuel, such as natural gas, standard gasoline or diesel to generate hydrogen for clean, on-site electrical power production. Hydrogen generation is provided by a non-catalytic reformer using high-voltage discharges to assist the exothermic partial oxidation process. Thermo-chemical modelling has been implemented considering both reforming system and hydrogen purification unit. The purification and separation unit must be able to produce high purity hydrogen because concentration of CO has to be strongly reduced before entering the fuel cell stack. A comparative performance analysis of different fuels for hydrogen generation has been provided. Thermochemical modelling has been conducted by means of Aspen Plus code.

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Atlam, Ozcan. "Performance model approaches for PEM type fuel cell (FC)-permanent magnet DC motor systems." In 2007 International Aegean Conference on Electrical Machines and Power Electronics (ACEMP) and Electromotion '07. IEEE, 2007. http://dx.doi.org/10.1109/acemp.2007.4510567.

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Li, Jianqiu, Liangfei Xu, Jianfeng Hua, and Minggao Ouyang. "A Distributed Real-Time Control System for PEM Fuel Cell Engine." In ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2009. http://dx.doi.org/10.1115/fuelcell2009-85203.

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A real time distributed control system for a 100Kw PEM fuel cell engine will be presented in this paper. The fuel cell engine is successful applied to a demonstration city bus in Beijing city for the Olympic Games. The framework of the control system, which is based on the Time Trigger Controller Area Network (TTCAN), will be presented in this paper. The control task schedule and optimize of TTCAN are analyzed. The individual and flexible output power control of the FC blocks is discussed and then the improved solution is presented.

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Marsala, G., D. Bouquin, J. T. Pukrushpan, M. Pucci, G. Cirrincione, G. Vitale, and A. Miraoui. "A Neural Inverse Control of a PEM-FC System by the Generalized Mapping Regressor (GMR)." In 2008 IEEE Industry Applications Society Annual Meeting (IAS). IEEE, 2008. http://dx.doi.org/10.1109/08ias.2008.154.

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Reports on the topic "PEM FC"

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Perry, Randal L. Analysis of the Durability of PEM FC Membrane Electrode Assemblies in Automotive Applications through the Fundamental Understanding of Membrane and MEA Degradation Pathways. Office of Scientific and Technical Information (OSTI), October 2013. http://dx.doi.org/10.2172/1098093.

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