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Renewable energy science fair project:
Direct Hydrogen Fuel Cells




Science Fair Project Information
Title: Direct Hydrogen Fuel Cells
Subject: Renewable Energy
Grade level: Middle School - Grades 7-9
Academic Level: Ordinary
Project Type: Experimental
Cost: Medium
Awards: 2nd place, Canada Wide Virtual Science Fair (2007)
Affiliation: Canada Wide Virtual Science Fair (VSF)
Year: 2007
Description: The purpose of this project was to synthesis hydrogen and oxygen using readily available chemicals (hydrochloric acid and calcium) for direct use in the hydrogen fuel cell. The hydrogen fuel cell would then power a small motor which would rotate a set of wheels.
Link: http://www.odec.ca/projects/2006/kaha6p2/
Short Background

A fuel cell is an electrochemical conversion device. It produces electricity from fuel (on the anode side) and an oxidant (on the cathode side), which react in the presence of an electrolyte. The reactants flow into the cell, and the reaction products flow out of it, while the electrolyte remains within it. Fuel cells can operate virtually continuously as long as the necessary flows are maintained.

Fuel cells are different from electrochemical cell batteries in that they consume reactant from an external source, which must be replenished - a thermodynamically open system. By contrast batteries store electrical energy chemically and hence represent a thermodynamically closed system.

Many combinations of fuel and oxidant are possible. A hydrogen cell uses hydrogen as fuel and oxygen (usually from air) as oxidant. Other fuels include hydrocarbons and alcohols. Other oxidants include chlorine and chlorine dioxide.

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

For More Information: Fuel Cell Background, Projects & Experiments

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