PEM Fuel Cells: Theory and Practice

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Academic Press, Jun 21, 2005 - Technology & Engineering - 456 pages
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Fuel cells are electrochemical energy conversion devices that convert hydrogen and oxygen into water, producing electricity and heat in the process and providing fuel efficiency and reductions in pollutants. Demand for this technology is growing rapidly. Fuel cells are being commercialized for stationary and portable electricity generation, and as a replacement for internal combustion engines in automobiles. Proton Exchange Membrane (PEM) fuel cells in particular are experiencing an upsurge. They have high power density and can vary their output quickly to meet shifts in power demand.

Until now, there has been little written about this important technology. This book lays the groundwork for fuel cell engineers, technicians and students. It covers the fundamental aspects of fuel cell design, electrochemistry of the technology, heat and mass transport, system design and applications to bring this technology to professionals at all levels.

* Comprehensive guide for engineers, researchers and policymakers
* Covers theory and practice of PEM fuel cells
* Contains hundreds of original illustrations and real-life engineering examples
 

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Contents

Introduction
1
Fuel Cell Basic Chemistry and Thermodynamics
17
Fuel Cell Electrochemistry
33
Main Cell Components Materials Properties and Processes
73
Fuel Cell Operating Conditions
115
Stack Design
147
Fuel Cell Modeling
207
Fuel Cell Diagnostics
249
Fuel Cell System Design
271
Fuel Cell Applications
337
Fuel Cells and Hydrogen Economy
399
Index
427
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Page 8 - The electrolyte is retained in a matrix (usually asbestos), and a wide range of electrocatalysts can be used (such as Ni, Ag, metal oxides, and noble metals). This fuel cell is intolerant to CO2 present in either the fuel or oxidant (67).
Page 9 - Molten carbonate fuel cells (MCFC) have the electrolyte composed of a combination of alkali (Li, Na, K) carbonates, which is retained in a ceramic matrix of LiAlO2. Operating temperatures are between 600°-700°C where the carbonates form a highly conductive molten salt, with carbonate ions providing ionic conduction.
Page 30 - Efficiency of a Carnot engine at maximum power output", American Journal of Physics, Vol.

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