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Renewable energy science fair project:
Effects of temperature of a PEM fuel cell and electrolyser system

Science Fair Project Information
Title: Effects of temperature of a PEM fuel cell and electrolyser system
Subject: Renewable Energy
Grade level: Middle School - Grades 7-9
Academic Level: Advanced
Project Type: Experimental
Cost: Medium
Awards: 1st place, Canada Wide Virtual Science Fair (2003)
Affiliation: Canada Wide Virtual Science Fair (VSF)
Year: 2003
Link: http://www.odec.ca/projects/2003/simps3i/public_html/
Short Background

Proton exchange membrane fuel cells, also known as polymer electrolyte membrane (PEM) fuel cells (PEMFC), are a type of fuel cell being developed for transport applications as well as for stationary fuel cell applications and portable fuel cell applications. Their distinguishing features include lower temperature/pressure ranges (50-100 degrees C) and a special polymer electrolyte membrane.

A proton exchange membrane fuel cell transforms the chemical energy liberated during the electrochemical reaction of hydrogen and oxygen to electrical energy, as opposed to the direct combustion of hydrogen and oxygen gases to produce thermal energy.

To function, the membrane must conduct hydrogen ions (protons) but not electrons as this would in effect "short circuit" the fuel cell. The membrane must also not allow either gas to pass to the other side of the cell, a problem known as gas crossover. Finally, the membrane must be resistant to the reducing environment at the cathode as well as the harsh oxidative environment at the anode.

Source: Wikipedia (All text is available under the terms of the GNU Free Documentation License)

For More Information: Proton Exchange Membrane (PEM) Fuel Cell

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