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Hydrogen Fuel - Energy

Hydrogen fuel Cell Engines MODULE 4: fuel CELL ENGINE TECHNOLOGY CONTENTS fuel CELL TECHNOLOGY ADVANTAGES OF fuel DISADVANTAGES OF fuel PRINCIPLE OF GALVANIC fuel TYPES OF fuel MOLTEN CARBONATE fuel SOLID OXIDE fuel ALKALINE fuel PHOSPHORIC ACID fuel PROTON EXCHANGE MEMBRANE (PEM) fuel PEM fuel CELL STACK MEMBRANE ELECTRODE ASSEMBLY (MEA)..4-37 FLOW FIELD PEM fuel CELL POLARIZATION POWER TEMPERATURE AND PRESSURE STOICHIOMETRY HUMIDITY Hydrogen fuel Cell Engines and Related Technologies: Rev 0, December 2001 Hydrogen fuel Cell Engines MODULE 4: fuel CELL ENGINE TECHNOLOGY OBJECTIVES At the completion of this module, the technician will understand the: advantages and disadvantages of fuel cells over conventional means

plify, but some of the environmental benefits are lost. • Fuel cells require relatively pure fuel, free of specific con-taminants. These contaminants include sulfur and car-bon compounds, and residual liquid fuels (depending on the type of fuel cell) that can deactivate the fuel cell cata-

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