Mini Micro Fuel Cells
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Mini Micro Fuel Cells
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Author : S. Kakaç
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-04-10
Mini Micro Fuel Cells written by S. Kakaç and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-10 with Science categories.
This volume contains an archival record of the NATO Advanced Institute on Mini – Micro Fuel Cells – Fundamental and Applications held in Çesme – Izmir, Turkey, July 22–August 3, 2007. The ASIs are intended to be a high-level teaching activity in scientific and technical areas of current concern. In this volume, the reader may find interesting chapters on Mini- Micro Fuel Cells with fundamentals and applications. In recent years, fu- cell development, modeling and performance analysis has received much attention due to their potential for distributed power which is a critical issue for energy security and the environmental protection. Small fuel cells for portable applications are important for the security. The portable devices (many electronic and wireless) operated by fuel cells for providing all-day power, are very valuable for the security, for defense and in the war against terrorism. Many companies in NATO and non-NATO countries have concentrated to promote the fuel cell industry. Many universities with industrial partners committed to the idea of working together to develop fuel cells. As tech- logy advanced in the 1980s and beyond, many government organizations joined in spending money on fuel-cell research. In recent years, interest in using fuel cells to power portable electronic devices and other small equipment (cell phones, mobile phones, lab-tops, they are used as micro power source in biological applications) has increased partly due to the promise of fuel cells having higher energy density.
Stackable Miniature Fuel Cells With On Demand Fuel And Oxygen Supply
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Author : Janet Hur
language : en
Publisher:
Release Date : 2013
Stackable Miniature Fuel Cells With On Demand Fuel And Oxygen Supply written by Janet Hur and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
This dissertation summarizes our progress towards miniature fuel cells that could replace and outperform small batteries to meet various power demands. With increasing need of power being critical for portable electronics, the demand for better batteries continues to grow. Lithium-ion batteries dominate the market at the moment, but the current capacities on the order of 200 Wh/kg are approaching their inherent limits. Many researchers have being pursuing alternative power sources, forming a rapidly growing field in engineering and science. For applications too small for batteries (below 1 cm and even 1 mm), currently no proper power source is available, despite over a decade of significant efforts by many in power micro electromechanical systems (power MEMS). Encouraged by the advantages of their macro counterparts, micro fuel cells have received attention as a potentially powerful, efficient, and clean power source for miniature applications, resulting in extensive research in micro fuel cells and even commercial introduction of some small fuel cells. However, they are not yet powerful enough to consider someday replacing batteries for a wide range of portable applications. While the promise of fuel cells is in their high theoretical energy density, unfortunately the promise is lost in current portable fuel cells because of their complex system that includes ancillary components such as mechanical pump, reformer, pressurized oxygen source, and gas separator. This dissertation summarizes our attempt to realize a full (i.e., complete, standalone) fuel cell with small footprint, extending the spirit of self-pumped fuel that eliminated ancillary components in the active fuel circulation system to self-controlled oxygen generation for a packaged oxidant supply. We first eliminate fuel pump, gas separator, membrane electrode assembly (MEA) and even pressurized oxygen tank to make anodic chamber simple and self-regulating. As the next step towards realizing a full fuel cell stackable as batteries, we develop a self-regulating oxygen generation system that supplies oxygen within the fuel cell, i.e., not relying on the ambient air. For our final goal, we integrate the self-pumped fuel supply and the self-regulated oxygen supply into one device to prove the concept of a full fuel cell suitable for a stacked configuration.
Micro Fuel Cells
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Author : Tim Zhao
language : en
Publisher: Academic Press
Release Date : 2009-07-07
Micro Fuel Cells written by Tim Zhao and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-07 with Technology & Engineering categories.
Today's consumers of portable electronics consumers are demanding devices not only deliver more power but also work healthy for the environment. This fact alone has lead major corporations like Intel, BIC, Duracell and Microsoft to believe that Microfuel Cells could be the next-generation power source for electronic products. Compact and readable, Microfuels Principles and Applications, offers engineers and product designers a reference unsurpassed by any other in the market. The book starts with a clear and rigorous exposition of the fundamentals engineering principles governing energy conversion for small electronic devices, followed by self-contained chapters concerning applications. The authors provide original points of view on all types of commercially available micro fuel cells types, including micro proton exchange membrane fuel cells, micro direct methanol fuel cells, micro solid oxide fuel cells and micro bio-fuel cells. The book also contains a detailed introduction to the fabrication of the components and the assembly of the system, making it a valuable reference both in terms of its application to product design and understanding micro engineering principles. An overview of the micro fuel cell systems and applications A detailed introduction to the fabrication of the components and the assembly of the system Original points of view on prospects of micro fuel cells
Silicon Micro Fabricated Miniature Polymer Electrolyte Fuel Cells
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Author : Shawn Christopher Kelley
language : en
Publisher:
Release Date : 2000
Silicon Micro Fabricated Miniature Polymer Electrolyte Fuel Cells written by Shawn Christopher Kelley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Direct Alcohol Fuel Cells For Portable Applications
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Author : Alexandra M. F. R. Pinto
language : en
Publisher: Academic Press
Release Date : 2018-09-08
Direct Alcohol Fuel Cells For Portable Applications written by Alexandra M. F. R. Pinto and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-08 with Technology & Engineering categories.
Direct Alcohol Fuel Cells for Portable Applications: Fundamentals, Engineering and Advances presents the fundamental concepts, technological advances and challenges in developing, modeling and deploying fuel cells and fuel cell systems for portable devices, including micro and mini fuel cells. The authors review the fundamental science of direct alcohol fuel cells, covering, in detail, thermodynamics, electrode kinetics and electrocatalysis of charge-transfer reactions, mass and heat transfer phenomena, and basic modeling aspects. In addition, the book examines other fuels in DAFCs, such as formic acid, ethylene glycol and glycerol, along with technological aspects and applications, including case studies and cost analysis. Researchers, engineering professionals, fuel cell developers, policymakers and senior graduate students will find this a valuable resource. The book’s comprehensive coverage of fundamentals is especially useful for graduate students, advanced undergraduate students and those new to the field. Provides a comprehensive understanding of the fundamentals of DAFCs and their basic components, design and performance Presents current and complete information on the state-of-the-art of DAFC technology and its most relevant challenges for commercial deployment Includes practical application examples, problems and case studies Covers the use of other fuels, such as formic acid, ethylene glycol and glycerol
Fuel Cell Micro Grids
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Author : Shin’ya Obara
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-10-03
Fuel Cell Micro Grids written by Shin’ya Obara and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-10-03 with Technology & Engineering categories.
Fuel Cell Micro-grids describes an energy supply method based on a network of two or more proton exchange membrane fuel cells (PEM-FC). Such a network enables the effective use of exhaust heat, the simplification of the transmission network, the possibility of backup during disruptive hazards and the consideration of regional factors. Furthermore, green energy and renewable energy systems can be connected to the network, to function in cooperation with the fuel cells. For these reasons, it is believed that an increasing number of applications will make use of such fuel cell energy networks. Fuel Cell Micro-grids analyses the operation plan of these new energy supply methods using genetic algorithms. The book explains the results of the analysis of the optimization operation plan, energy cost, and greenhouse gas discharge characteristics for many application cases of the fuel cell network.
Feasibility Study Of Long Life Micro Fuel Cell Power Supply For Sensor Networks For Space And Terrestrial Applications
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Author : Kavya Kamal Manyapu
language : en
Publisher:
Release Date : 2010
Feasibility Study Of Long Life Micro Fuel Cell Power Supply For Sensor Networks For Space And Terrestrial Applications written by Kavya Kamal Manyapu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Sensor networks used for activities like border security, search and rescue, planetary exploration, commonly operate in harsh environments for long durations, where human supervision is minimal. A major challenge confronting such devices is providing adequate and reliable power supply required for long durations. This research considers the feasibility of a miniature Proton Exchange Membrane (PEM) fuel cell system coupled with battery to supply power for long life missions. The focus of this research is to prove the feasibility of long-life, self-contained power-supplies using miniature fuel cells for low-power distributed sensor networks. In this research, the performance of fuel cell power-supplies weighing not more than a few hundred grams is studied. The performance of the PEM fuel cell is modeled, analyzed and validated using experimental results. The feasibility of the fuel cell power systems are studied for two reference missions - one on the lunar surface and the other in the desert regions of Negev, Israel. This research analyzes the use of passive methods to achieve thermal, air and water management for PEM fuel cells supplying power to these field sensors. The results of this study suggest that the proposed fuel cell power system is capable of providing power to sensor modules in challenging field conditions with operational lives extending from many months to years. The scope of this concept can be extended to power devices such as micro-robots and small unmanned aerial vehicles operating in extreme environmental conditions for sustained periods of time.
Micro Nano Engineering Of Fuel Cells
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Author : Dennis Y.C. Leung
language : en
Publisher: CRC Press
Release Date : 2015-04-24
Micro Nano Engineering Of Fuel Cells written by Dennis Y.C. Leung and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-24 with Science categories.
Fuel cells are clean and efficient energy conversion devices expected to be the next generation power source. During more than 17 decades of research and development, various types of fuel cells have been developed with a view to meet the different energy demands and application requirements. Scientists have devoted a great deal of time and effort
Fuel Cell Technologies Micro Fuel Cell Power Systems Performance Test Methods
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Author : British Standards Institute Staff
language : en
Publisher:
Release Date : 1912-10-31
Fuel Cell Technologies Micro Fuel Cell Power Systems Performance Test Methods written by British Standards Institute Staff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1912-10-31 with categories.
Fuel cells, Energy technology, Direct energy conversion, Electric cells, Performance testing, Electrical measurement, Power measurement (electric), Electric power generation, Fuel consumption, Mechanical testing, Laptop computers, Telephones
Fuel Cells
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Author : Vladimir S. Bagotsky
language : en
Publisher: John Wiley & Sons
Release Date : 2012-02-08
Fuel Cells written by Vladimir S. Bagotsky and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-08 with Technology & Engineering categories.
The comprehensive, accessible introduction to fuel cells, their applications, and the challenges they pose Fuel cells electrochemical energy devices that produce electricity and heat present a significant opportunity for cleaner, easier, and more practical energy. However, the excitement over fuel cells within the research community has led to such rapid innovation and development that it can be difficult for those not intimately familiar with the science involved to figure out exactly how this new technology can be used. Fuel Cells: Problems and Solutions, Second Edition addresses this issue head on, presenting the most important information about these remarkable power sources in an easy-to-understand way. Comprising four important sections, the book explores: The fundamentals of fuel cells, how they work, their history, and much more The major types of fuel cells, including proton exchange membrane fuel cells (PEMFC), direct liquid fuel cells (DLFC), and many others The scientific and engineering problems related to fuel cell technology The commercialization of fuel cells, including a look at their uses around the world Now in its second edition, this book features fully revised coverage of the modeling of fuel cells and small fuel cells for portable devices, and all-new chapters on the structural and wetting properties of fuel cell components, experimental methods for fuel cell stacks, and nonconventional design principles for fuel cells, bringing the content fully up to date. Designed for advanced undergraduate and graduate students in engineering and chemistry programs, as well as professionals working in related fields, Fuel Cells is a compact and accessible introduction to the exciting world of fuel cells and why they matter.